• dr Anna Piekarska-Stachowiak
Stanowisko: Adiunkt
Jednostka: Wydział Nauk Przyrodniczych
Adres: 40-032 Katowice, ul. Jagiellońska 28
Piętro: III
Numer pokoju: C-342
Telefon: (32) 2009 579
E-mail: anna.piekarska@us.edu.pl
Spis publikacji: Spis wg CINiBA
Spis publikacji: Spis wg OPUS
Scopus Author ID: 55832531200
Publikacje z bazy Scopus
2021
Krzyśko-łupicka, T.; Sokół, S.; Sporek, M.; Piekarska-Stachowiak, A.; Walkowiak-Lubczyk, W.; Sudoł, A.
Effectiveness of the influence of selected essential oils on the growth of parasitic fusarium isolated from wheat kernels from central europe Journal Article
In: Molecules, vol. 26, no. 21, 2021, ISSN: 14203049, (2).
@article{2-s2.0-85118363806,
title = {Effectiveness of the influence of selected essential oils on the growth of parasitic fusarium isolated from wheat kernels from central europe},
author = { T. Krzyśko-łupicka and S. Sokół and M. Sporek and A. Piekarska-Stachowiak and W. Walkowiak-Lubczyk and A. Sudoł},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118363806&doi=10.3390%2fmolecules26216488&partnerID=40&md5=2d53925a4e45d4967ce2f87527435f32},
doi = {10.3390/molecules26216488},
issn = {14203049},
year = {2021},
date = {2021-01-01},
journal = {Molecules},
volume = {26},
number = {21},
publisher = {MDPI},
abstract = {The aim of the study was to determine the effectiveness of selected seven commercial essential oils (EsO) (grapefruit; lemongrass; tea tree (TTO); thyme; verbena; cajeput; and Litsea cubeba) on isolates of common Central European parasitic fungal species of Fusarium obtained from infected wheat kernels, and to evaluate the oils as potential natural fungicides. The study was conducted in 2 stages. At each stage, the fungicidal activity of EsO (with concentrations of 0.025; 0.05; 0.125; 0.25; 0.50; 1.0; and 2.0%) against Fusarium spp. was evaluated using the disc plate method and zones of growth inhibition were measured. At the first stage, the fungistatic activity of EsO was evaluated against four species of Fusarium from the Polish population (F. avenaceum FAPL; F. culmorum FCPL; F. graminearum FGPL and F. oxysporum FOPL). The correlation coefficient between the mycelial growth rate index (T) and the fungistatic activity (FA) was calculated. At the second stage, on the basis of the mycelium growth rate index, the effectiveness of the EsO in limiting the development of Fusarium isolates from the German population (F. culmorum FC1D; F. culmorum FC2D; F. graminearum FG1D; F. graminearum FG2D and F. poae FP0D) was assessed. The first and second stage results presented as a growth rate index were then used to indicate essential oils (as potential natural fungicides) effectively limiting the development of various common Central European parasitic species Fusarium spp. Finally, the sensitivity of four Fusarium isolates from the Polish population and five Fusarium isolates from the German population was compared. The data were compiled in STATISTICA 13.0 (StatSoft; Inc; CA; USA) at the significance level of 0.05. Fusarium isolates from the German population were generally more sensitive than those from the Polish population. The sensitivity of individual Fusarium species varied. Their vulnerability, regardless of the isolate origin, in order from the most to the least sensitive, is as follows: F. culmorum, F. graminearum, F. poae, F. avenaceum and F. oxysporum. The strongest fungicidal activity, similar to Funaben T, showed thyme oil (regardless of the concentration). Performance of citral oils (lemongrass and Litsea cubeba) was similar but at a concentration above 0.025%. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.},
note = {2},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The aim of the study was to determine the effectiveness of selected seven commercial essential oils (EsO) (grapefruit; lemongrass; tea tree (TTO); thyme; verbena; cajeput; and Litsea cubeba) on isolates of common Central European parasitic fungal species of Fusarium obtained from infected wheat kernels, and to evaluate the oils as potential natural fungicides. The study was conducted in 2 stages. At each stage, the fungicidal activity of EsO (with concentrations of 0.025; 0.05; 0.125; 0.25; 0.50; 1.0; and 2.0%) against Fusarium spp. was evaluated using the disc plate method and zones of growth inhibition were measured. At the first stage, the fungistatic activity of EsO was evaluated against four species of Fusarium from the Polish population (F. avenaceum FAPL; F. culmorum FCPL; F. graminearum FGPL and F. oxysporum FOPL). The correlation coefficient between the mycelial growth rate index (T) and the fungistatic activity (FA) was calculated. At the second stage, on the basis of the mycelium growth rate index, the effectiveness of the EsO in limiting the development of Fusarium isolates from the German population (F. culmorum FC1D; F. culmorum FC2D; F. graminearum FG1D; F. graminearum FG2D and F. poae FP0D) was assessed. The first and second stage results presented as a growth rate index were then used to indicate essential oils (as potential natural fungicides) effectively limiting the development of various common Central European parasitic species Fusarium spp. Finally, the sensitivity of four Fusarium isolates from the Polish population and five Fusarium isolates from the German population was compared. The data were compiled in STATISTICA 13.0 (StatSoft; Inc; CA; USA) at the significance level of 0.05. Fusarium isolates from the German population were generally more sensitive than those from the Polish population. The sensitivity of individual Fusarium species varied. Their vulnerability, regardless of the isolate origin, in order from the most to the least sensitive, is as follows: F. culmorum, F. graminearum, F. poae, F. avenaceum and F. oxysporum. The strongest fungicidal activity, similar to Funaben T, showed thyme oil (regardless of the concentration). Performance of citral oils (lemongrass and Litsea cubeba) was similar but at a concentration above 0.025%. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
2020
Krzyśko-łupicka, T.; Sokół, S.; Piekarska-Stachowiak, A.
In: Molecules, vol. 25, no. 2, 2020, ISSN: 14203049, (12).
@article{2-s2.0-85077889122,
title = {Evaluation of fungistatic activity of eight selected essential oils on four heterogeneous Fusarium isolates obtained from cereal grains in southern Poland},
author = { T. Krzyśko-łupicka and S. Sokół and A. Piekarska-Stachowiak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077889122&doi=10.3390%2fmolecules25020292&partnerID=40&md5=b2f7177f5394b82fccb28f579cdcc808},
doi = {10.3390/molecules25020292},
issn = {14203049},
year = {2020},
date = {2020-01-01},
journal = {Molecules},
volume = {25},
number = {2},
publisher = {MDPI AG},
abstract = {The aim of the study was to determine the relationship between the chemical composition of eight commercial essential oils (EsO) (garlic; grapefruit; lemon grass; tea tree; thyme; verbena; cajeput; and Litsea cubeba) and their fungistatic activity in relation to four species of Fusarium: F. avenaceum, F. culmorum, F. graminearum, and F. oxysporum. The species identification of Fusarium isolates was confirmed by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometer. The determination of qualitative and quantitative chemical composition of the EsO was carried out using the gas chromatography–mass spectrometry (GC–MS) method. The fungistatic activity of EsO was assessed by using the method of poisoned substrates. The data were compiled in the STATISTICA 13.0 program. The chemical composition of the tested oils varied; the dominant fraction, except for grapefruit and garlic oils, were monoterpenoids. The greatest similarity to the action of the synthetic pesticide Funaben T was found in four oils, i.e., thyme, lemongrass, verbena, and Litsea cubeba. The studies showed that F. oxysporum and F. avenaceum were characterized by a higher resistance to low oil concentrations, and F. culmorum and F. graminearum by sensitivity. The fungicidal activity of two EsO-dominant monoterpenoids-thymol and citral—has been confirmed. © 2020 by the authors.},
note = {12},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The aim of the study was to determine the relationship between the chemical composition of eight commercial essential oils (EsO) (garlic; grapefruit; lemon grass; tea tree; thyme; verbena; cajeput; and Litsea cubeba) and their fungistatic activity in relation to four species of Fusarium: F. avenaceum, F. culmorum, F. graminearum, and F. oxysporum. The species identification of Fusarium isolates was confirmed by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometer. The determination of qualitative and quantitative chemical composition of the EsO was carried out using the gas chromatography–mass spectrometry (GC–MS) method. The fungistatic activity of EsO was assessed by using the method of poisoned substrates. The data were compiled in the STATISTICA 13.0 program. The chemical composition of the tested oils varied; the dominant fraction, except for grapefruit and garlic oils, were monoterpenoids. The greatest similarity to the action of the synthetic pesticide Funaben T was found in four oils, i.e., thyme, lemongrass, verbena, and Litsea cubeba. The studies showed that F. oxysporum and F. avenaceum were characterized by a higher resistance to low oil concentrations, and F. culmorum and F. graminearum by sensitivity. The fungicidal activity of two EsO-dominant monoterpenoids-thymol and citral—has been confirmed. © 2020 by the authors.
2019
Piekarska-Stachowiak, A.; Szymanowska-Pułka, J.; Potocka, I. W.; Lipowczan, M.
Topological traits of a cellular pattern versus growth rate anisotropy in radish roots Journal Article
In: Protoplasma, vol. 256, no. 4, pp. 1037-1049, 2019, ISSN: 0033183X, (2).
@article{2-s2.0-85062693923,
title = {Topological traits of a cellular pattern versus growth rate anisotropy in radish roots},
author = { A. Piekarska-Stachowiak and J. Szymanowska-Pułka and I.W. Potocka and M. Lipowczan},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062693923&doi=10.1007%2fs00709-019-01362-6&partnerID=40&md5=cccf6583996ca648bc09a4c2447b52e2},
doi = {10.1007/s00709-019-01362-6},
issn = {0033183X},
year = {2019},
date = {2019-01-01},
journal = {Protoplasma},
volume = {256},
number = {4},
pages = {1037-1049},
publisher = {Springer-Verlag Wien},
abstract = {The topology of a cellular pattern, which means the spatial arrangement of cells, directly corresponds with cell packing, which is crucial for tissue and organ functioning. The topological features of cells that are typically analyzed are the number of their neighbors and the cell area. To date, the objects of most topological studies have been the growing cells of the surface tissues of plant and animal organs. Some of these researches also provide verification of Lewis’s Law concerning the linear correlation between the number of neighboring cells and the cell area. Our aim was to analyze the cellular topology and applicability of Lewis’s Law to an anisotropically growing plant organ. The object of our study was the root apex of radish. Based on the tensor description of plant organ growth, we specified the level of anisotropy in specific zones (the root proper; the columella of the cap and the lateral parts of the cap) and in specific types of both external (epidermis) and internal tissues (stele and ground tissue) of the apex. The strongest anisotropy occurred in the root proper, while both zones of the cap showed an intermediate level of anisotropy of growth. Some differences in the topology of the cellular pattern in the zones were also detected; in the root proper, six-sided cells predominated, while in the root cap columella and in the lateral parts of the cap, most cells had five neighbors. The correlation coefficient rL between the number of neighboring cells and the cell area was high in the apex as a whole as well as in all of the zones except the root proper and in all of the tissue types except the ground tissue. In general, Lewis’s Law was fulfilled in the anisotropically growing radish root apex. However, the level of the applicability (rL value) of Lewis’s Law was negatively correlated with the level of the anisotropy of growth, which may suggest that in plant organs in the regions of anisotropic growth, the number of neighboring cells is less dependent on the cell size. © 2019, The Author(s).},
note = {2},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The topology of a cellular pattern, which means the spatial arrangement of cells, directly corresponds with cell packing, which is crucial for tissue and organ functioning. The topological features of cells that are typically analyzed are the number of their neighbors and the cell area. To date, the objects of most topological studies have been the growing cells of the surface tissues of plant and animal organs. Some of these researches also provide verification of Lewis’s Law concerning the linear correlation between the number of neighboring cells and the cell area. Our aim was to analyze the cellular topology and applicability of Lewis’s Law to an anisotropically growing plant organ. The object of our study was the root apex of radish. Based on the tensor description of plant organ growth, we specified the level of anisotropy in specific zones (the root proper; the columella of the cap and the lateral parts of the cap) and in specific types of both external (epidermis) and internal tissues (stele and ground tissue) of the apex. The strongest anisotropy occurred in the root proper, while both zones of the cap showed an intermediate level of anisotropy of growth. Some differences in the topology of the cellular pattern in the zones were also detected; in the root proper, six-sided cells predominated, while in the root cap columella and in the lateral parts of the cap, most cells had five neighbors. The correlation coefficient rL between the number of neighboring cells and the cell area was high in the apex as a whole as well as in all of the zones except the root proper and in all of the tissue types except the ground tissue. In general, Lewis’s Law was fulfilled in the anisotropically growing radish root apex. However, the level of the applicability (rL value) of Lewis’s Law was negatively correlated with the level of the anisotropy of growth, which may suggest that in plant organs in the regions of anisotropic growth, the number of neighboring cells is less dependent on the cell size. © 2019, The Author(s).
2017
Kucypera, K.; Lipowczan, M.; Piekarska-Stachowiak, A.; Nakielski, J.
A method to generate the surface cell layer of the 3D virtual shoot apex from apical initials Journal Article
In: Plant Methods, vol. 13, no. 1, 2017, ISSN: 17464811, (4).
@article{2-s2.0-85037706805,
title = {A method to generate the surface cell layer of the 3D virtual shoot apex from apical initials},
author = { K. Kucypera and M. Lipowczan and A. Piekarska-Stachowiak and J. Nakielski},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85037706805&doi=10.1186%2fs13007-017-0262-7&partnerID=40&md5=5852bdccd55c2cb939ad7a084fd7b363},
doi = {10.1186/s13007-017-0262-7},
issn = {17464811},
year = {2017},
date = {2017-01-01},
journal = {Plant Methods},
volume = {13},
number = {1},
publisher = {BioMed Central Ltd.},
abstract = {Background: The development of cell pattern in the surface cell layer of the shoot apex can be investigated in vivo by use of a time-lapse confocal images, showing naked meristem in 3D in successive times. However, how this layer is originated from apical initials and develops as a result of growth and divisions of their descendants, remains unknown. This is an open area for computer modelling. A method to generate the surface cell layer is presented on the example of the 3D paraboloidal shoot apical dome. In the used model the layer originates from three apical initials that meet at the dome summit and develops through growth and cell divisions under the isotropic surface growth, defined by the growth tensor. The cells, which are described by polyhedrons, divide anticlinally with the smallest division plane that passes depending on the used mode through the cell center, or the point found randomly near this center. The formation of the surface cell pattern is described with the attention being paid to activity of the apical initials and fates of their descendants. Results: The computer generated surface layer that included about 350 cells required about 1200 divisions of the apical initials and their derivatives. The derivatives were arranged into three more or less equal clonal sectors composed of cellular clones at different age. Each apical initial renewed itself 7-8 times to produce the sector. In the shape and location and the cellular clones the following divisions of the initial were manifested. The application of the random factor resulted in more realistic cell pattern in comparison to the pure mode. The cell divisions were analyzed statistically on the top view. When all of the division walls were considered, their angular distribution was uniform, whereas in the distribution that was limited to apical initials only, some preferences related to their arrangement at the dome summit were observed. Conclusions: The realistic surface cell pattern was obtained. The present method is a useful tool to generate surface cell layer, study activity of initial cells and their derivatives, and how cell expansion and division are coordinated during growth. We expect its further application to clarify the question of a number and permanence or impermanence of initial cells, and possible relationship between their shape and oriented divisions, both on the ground of the growth tensor approach. © 2017 The Author(s).},
note = {4},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Background: The development of cell pattern in the surface cell layer of the shoot apex can be investigated in vivo by use of a time-lapse confocal images, showing naked meristem in 3D in successive times. However, how this layer is originated from apical initials and develops as a result of growth and divisions of their descendants, remains unknown. This is an open area for computer modelling. A method to generate the surface cell layer is presented on the example of the 3D paraboloidal shoot apical dome. In the used model the layer originates from three apical initials that meet at the dome summit and develops through growth and cell divisions under the isotropic surface growth, defined by the growth tensor. The cells, which are described by polyhedrons, divide anticlinally with the smallest division plane that passes depending on the used mode through the cell center, or the point found randomly near this center. The formation of the surface cell pattern is described with the attention being paid to activity of the apical initials and fates of their descendants. Results: The computer generated surface layer that included about 350 cells required about 1200 divisions of the apical initials and their derivatives. The derivatives were arranged into three more or less equal clonal sectors composed of cellular clones at different age. Each apical initial renewed itself 7-8 times to produce the sector. In the shape and location and the cellular clones the following divisions of the initial were manifested. The application of the random factor resulted in more realistic cell pattern in comparison to the pure mode. The cell divisions were analyzed statistically on the top view. When all of the division walls were considered, their angular distribution was uniform, whereas in the distribution that was limited to apical initials only, some preferences related to their arrangement at the dome summit were observed. Conclusions: The realistic surface cell pattern was obtained. The present method is a useful tool to generate surface cell layer, study activity of initial cells and their derivatives, and how cell expansion and division are coordinated during growth. We expect its further application to clarify the question of a number and permanence or impermanence of initial cells, and possible relationship between their shape and oriented divisions, both on the ground of the growth tensor approach. © 2017 The Author(s).
2016
Orzechowska, M.; Gurdek, S.; Siwińska, D.; Piekarska-Stachowiak, A.
Cytogenetic characterization of the Arabidopsis thaliana natural tetraploid ecotype Warschau stability during in vitro regeneration Journal Article
In: Plant Cell, Tissue and Organ Culture, vol. 126, no. 3, pp. 553-560, 2016, ISSN: 01676857, (3).
@article{2-s2.0-84969134520,
title = {Cytogenetic characterization of the Arabidopsis thaliana natural tetraploid ecotype Warschau stability during in vitro regeneration},
author = { M. Orzechowska and S. Gurdek and D. Siwińska and A. Piekarska-Stachowiak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969134520&doi=10.1007%2fs11240-016-1006-5&partnerID=40&md5=a6adece06a377085dcab6d107b964afb},
doi = {10.1007/s11240-016-1006-5},
issn = {01676857},
year = {2016},
date = {2016-01-01},
journal = {Plant Cell, Tissue and Organ Culture},
volume = {126},
number = {3},
pages = {553-560},
publisher = {Springer Netherlands},
abstract = {The morphological and cytogenetic features of the natural autotetraploid Arabidopsis thaliana ecotype Warschau (Wa-1) were investigated. Most of the Warschau plant organs that were analyzed showed higher size values in comparison with diploid Columbia plants. The tetraploid chromosome number was confirmed by analysis of mitotic metaphase cells and rDNA loci were localized. 35S rDNA loci were present on chromosomes 2 and 4, while 5S rDNA, which is polymorphic among A. thaliana ecotypes, were present on chromosomes 4 and 5. Well-characterized autotetraploid plant material was used for in vitro culture to investigate somaclonal variation. Efficient regeneration through organogenesis was achieved. Most of the plants obtained in vitro exhibited an unchanged ploidy level. Detailed cytogenetic analysis that included chromosome, chromocenters and rDNA signals numbers, revealed the stability of regenerants. Based on these data we recommend the ecotype Warschau as a well-characterized plant material for future investigations on the consequences of polyploidy for the genome. © 2016, The Author(s).},
note = {3},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The morphological and cytogenetic features of the natural autotetraploid Arabidopsis thaliana ecotype Warschau (Wa-1) were investigated. Most of the Warschau plant organs that were analyzed showed higher size values in comparison with diploid Columbia plants. The tetraploid chromosome number was confirmed by analysis of mitotic metaphase cells and rDNA loci were localized. 35S rDNA loci were present on chromosomes 2 and 4, while 5S rDNA, which is polymorphic among A. thaliana ecotypes, were present on chromosomes 4 and 5. Well-characterized autotetraploid plant material was used for in vitro culture to investigate somaclonal variation. Efficient regeneration through organogenesis was achieved. Most of the plants obtained in vitro exhibited an unchanged ploidy level. Detailed cytogenetic analysis that included chromosome, chromocenters and rDNA signals numbers, revealed the stability of regenerants. Based on these data we recommend the ecotype Warschau as a well-characterized plant material for future investigations on the consequences of polyploidy for the genome. © 2016, The Author(s).
2014
Piekarska-Stachowiak, A.; Szary, M. Ł.; Ziemer, B.; Besenyei, L.; Woźniak, G.
An application of the plant functional group concept to restoration practice on coal mine spoil heaps Journal Article
In: Ecological Research, vol. 29, no. 5, pp. 843-853, 2014, ISSN: 09123814, (31).
@article{2-s2.0-84939878875,
title = {An application of the plant functional group concept to restoration practice on coal mine spoil heaps},
author = { A. Piekarska-Stachowiak and M.Ł. Szary and B. Ziemer and L. Besenyei and G. Woźniak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84939878875&doi=10.1007%2fs11284-014-1172-z&partnerID=40&md5=5a86ebb38558ff594ec56674ee2dabe3},
doi = {10.1007/s11284-014-1172-z},
issn = {09123814},
year = {2014},
date = {2014-01-01},
journal = {Ecological Research},
volume = {29},
number = {5},
pages = {843-853},
publisher = {Springer Japan},
abstract = {The history of coal mining in South Poland has left a legacy of many spoil heaps across the landscape. These have presented the opportunity to study their colonisation and spontaneous successional sequences over a long time period. We use the plant functional group (PFG) approach to characterize and compare species diversity on spoil heaps of different ages by utilising the ecological characteristics (PFG categories) of the species recorded during the course of spontaneous vegetation development. By changing species frequency into functional group frequency it was possible to find the significant differences in the functional composition of the studied vegetation and to analyze the dataset using non-parametric statistics. There was a small increase in the number of species over time, while the frequency of geophytes, nanophanerophytes and megaphanerophytes increased significantly. A significant increase was also recorded for the frequency of competitors, stress-tolerators and stress-tolerant competitors and for native species. We found that the significant differences in species composition measured as PFG diversity occurred between the youngest and the oldest age classes. The PFG approach provided valuable insights into the nature of the species composition of the developing vegetation on hard-coal mine spoil heaps. We suggest that it could be usefully applied in restoration practice in the future by facilitating the natural colonization of native species adapted to local conditions and thus retaining the local gene pool in these areas. © 2014, The Author(s).},
note = {31},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The history of coal mining in South Poland has left a legacy of many spoil heaps across the landscape. These have presented the opportunity to study their colonisation and spontaneous successional sequences over a long time period. We use the plant functional group (PFG) approach to characterize and compare species diversity on spoil heaps of different ages by utilising the ecological characteristics (PFG categories) of the species recorded during the course of spontaneous vegetation development. By changing species frequency into functional group frequency it was possible to find the significant differences in the functional composition of the studied vegetation and to analyze the dataset using non-parametric statistics. There was a small increase in the number of species over time, while the frequency of geophytes, nanophanerophytes and megaphanerophytes increased significantly. A significant increase was also recorded for the frequency of competitors, stress-tolerators and stress-tolerant competitors and for native species. We found that the significant differences in species composition measured as PFG diversity occurred between the youngest and the oldest age classes. The PFG approach provided valuable insights into the nature of the species composition of the developing vegetation on hard-coal mine spoil heaps. We suggest that it could be usefully applied in restoration practice in the future by facilitating the natural colonization of native species adapted to local conditions and thus retaining the local gene pool in these areas. © 2014, The Author(s).
Lipowczan, M.; Piekarska-Stachowiak, A.
Comparison of empirical rules describing cell plate formation in 2D computer simulations of apical meristem in plants Journal Article
In: Journal of Biological Systems, vol. 22, no. 1, pp. 61-71, 2014, ISSN: 02183390, (2).
@article{2-s2.0-84896755666,
title = {Comparison of empirical rules describing cell plate formation in 2D computer simulations of apical meristem in plants},
author = { M. Lipowczan and A. Piekarska-Stachowiak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896755666&doi=10.1142%2fS021833901450003X&partnerID=40&md5=dd1c32d1b2fce8a2a5ab8eef9b1c2a54},
doi = {10.1142/S021833901450003X},
issn = {02183390},
year = {2014},
date = {2014-01-01},
journal = {Journal of Biological Systems},
volume = {22},
number = {1},
pages = {61-71},
abstract = {There are two families of lines describing the cell wall pattern in root and shoot apices; periclines and anticlines. The lines of these two families are mutually orthogonal and steady during apex growth. They approximate orientation of cell walls in the apices. These lines are preserved in the growing organ. The direction of periclines and anticlines is regulated at the organ level. This paper focuses on the question: how is the pattern of periclines and anticlines maintained? There are a number of rules, which deal with the problem of the orientation of a new cell wall. We test three of them: Errera rule (the smallest possible area of a new cell wall that divides the mother cell into equal portions is chosen), Sachs rule (the new wall is perpendicular to the nearest wall from the geometric center where it is inserted) and Hejnowicz postulate (the new cell wall is perpendicular to one of the principal directions of growth rate). We tested these rules in the computer simulation of the organ growth and cell divisions. © World Scientific Publishing Company.},
note = {2},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
There are two families of lines describing the cell wall pattern in root and shoot apices; periclines and anticlines. The lines of these two families are mutually orthogonal and steady during apex growth. They approximate orientation of cell walls in the apices. These lines are preserved in the growing organ. The direction of periclines and anticlines is regulated at the organ level. This paper focuses on the question: how is the pattern of periclines and anticlines maintained? There are a number of rules, which deal with the problem of the orientation of a new cell wall. We test three of them: Errera rule (the smallest possible area of a new cell wall that divides the mother cell into equal portions is chosen), Sachs rule (the new wall is perpendicular to the nearest wall from the geometric center where it is inserted) and Hejnowicz postulate (the new cell wall is perpendicular to one of the principal directions of growth rate). We tested these rules in the computer simulation of the organ growth and cell divisions. © World Scientific Publishing Company.
2013
Piekarska-Stachowiak, A.; Nakielski, J.
The simulation model of growth and cell divisions for the root apex with an apical cell in application to Azolla pinnata Journal Article
In: Planta, vol. 238, no. 6, pp. 1051-1064, 2013, ISSN: 00320935, (9).
@article{2-s2.0-84891165382,
title = {The simulation model of growth and cell divisions for the root apex with an apical cell in application to Azolla pinnata},
author = { A. Piekarska-Stachowiak and J. Nakielski},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891165382&doi=10.1007%2fs00425-013-1950-9&partnerID=40&md5=145909e1d857f020c303511b0c7d5323},
doi = {10.1007/s00425-013-1950-9},
issn = {00320935},
year = {2013},
date = {2013-01-01},
journal = {Planta},
volume = {238},
number = {6},
pages = {1051-1064},
publisher = {Springer Verlag},
abstract = {In contrast to seed plants, the roots of most ferns have a single apical cell which is the ultimate source of all cells in the root. The apical cell has a tetrahedral shape and divides asymmetrically. The root cap derives from the distal division face, while merophytes derived from three proximal division faces contribute to the root proper. The merophytes are produced sequentially forming three sectors along a helix around the root axis. During development, they divide and differentiate in a predictable pattern. Such growth causes cell pattern of the root apex to be remarkably regular and self-perpetuating. The nature of this regularity remains unknown. This paper shows the 2D simulation model for growth of the root apex with the apical cell in application to Azolla pinnata. The field of growth rates of the organ, prescribed by the model, is of a tensor type (symplastic growth) and cells divide taking principal growth directions into account. The simulations show how the cell pattern in a longitudinal section of the apex develops in time. The virtual root apex grows realistically and its cell pattern is similar to that observed in anatomical sections. The simulations indicate that the cell pattern regularity results from cell divisions which are oriented with respect to principal growth directions. Such divisions are essential for maintenance of peri-anticlinal arrangement of cell walls and coordinated growth of merophytes during the development. The highly specific division program that takes place in merophytes prior to differentiation seems to be regulated at the cellular level. © 2013 The Author(s).},
note = {9},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In contrast to seed plants, the roots of most ferns have a single apical cell which is the ultimate source of all cells in the root. The apical cell has a tetrahedral shape and divides asymmetrically. The root cap derives from the distal division face, while merophytes derived from three proximal division faces contribute to the root proper. The merophytes are produced sequentially forming three sectors along a helix around the root axis. During development, they divide and differentiate in a predictable pattern. Such growth causes cell pattern of the root apex to be remarkably regular and self-perpetuating. The nature of this regularity remains unknown. This paper shows the 2D simulation model for growth of the root apex with the apical cell in application to Azolla pinnata. The field of growth rates of the organ, prescribed by the model, is of a tensor type (symplastic growth) and cells divide taking principal growth directions into account. The simulations show how the cell pattern in a longitudinal section of the apex develops in time. The virtual root apex grows realistically and its cell pattern is similar to that observed in anatomical sections. The simulations indicate that the cell pattern regularity results from cell divisions which are oriented with respect to principal growth directions. Such divisions are essential for maintenance of peri-anticlinal arrangement of cell walls and coordinated growth of merophytes during the development. The highly specific division program that takes place in merophytes prior to differentiation seems to be regulated at the cellular level. © 2013 The Author(s).
Lipowczan, M.; Piekarska-Stachowiak, A.; Elsner, J.; Pietrakowski, J.
The tensor-based model of plant growth applied to leaves of Arabidopsis thaliana: A two-dimensional computer model Journal Article
In: Comptes Rendus - Biologies, vol. 336, no. 9, pp. 425-432, 2013, ISSN: 16310691, (3).
@article{2-s2.0-84886726393,
title = {The tensor-based model of plant growth applied to leaves of Arabidopsis thaliana: A two-dimensional computer model},
author = { M. Lipowczan and A. Piekarska-Stachowiak and J. Elsner and J. Pietrakowski},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84886726393&doi=10.1016%2fj.crvi.2013.09.001&partnerID=40&md5=e404b4fe93dc95ae0c5377886c53be45},
doi = {10.1016/j.crvi.2013.09.001},
issn = {16310691},
year = {2013},
date = {2013-01-01},
journal = {Comptes Rendus - Biologies},
volume = {336},
number = {9},
pages = {425-432},
abstract = {Plant organs grow in coordinated and continuous way. Such growth is of a tensor nature, hence there is an infinite number of different directions of growth rate in each point of the growing organ. Three mutually orthogonal directions of growth can be recognized in which growth achieves extreme values (principal directions of growth [PDGs]). Models based on the growth tensor have already been successfully applied to the root and shoot apex. This paper presents the 2D model of growth applied to the arabidopsis leaf. The model employs the growth tensor method with a non-stationary velocity field. The postulated velocity functions are confirmed by growth measurements with the aid of the replica method. © 2013 Académie des sciences.},
note = {3},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Plant organs grow in coordinated and continuous way. Such growth is of a tensor nature, hence there is an infinite number of different directions of growth rate in each point of the growing organ. Three mutually orthogonal directions of growth can be recognized in which growth achieves extreme values (principal directions of growth [PDGs]). Models based on the growth tensor have already been successfully applied to the root and shoot apex. This paper presents the 2D model of growth applied to the arabidopsis leaf. The model employs the growth tensor method with a non-stationary velocity field. The postulated velocity functions are confirmed by growth measurements with the aid of the replica method. © 2013 Académie des sciences.