Analysis of cell division patterns in the Arabidopsis shoot apical meristem
Abstract
The stereotypic pattern of cell shapes in the Arabidopsis shoot apical meristem (SAM) suggests that strict rules govern the placement of new walls during cell division. When a cell in the SAM divides, a new wall is built that connects existing walls and divides the cytoplasm of the daughter cells. Because features that are determined by the placement of new walls such as cell size, shape, and number of neighbors are highly regular, rules must exist for maintaining such order. Here in this paper we present a quantitative model of these rules that incorporates different observed features of cell division. Each feature is incorporated into a "potential function" that contributes a single term to a total analog of potential energy. New cell walls are predicted to occur at locations where the potential function is minimized. Quantitative terms that represent the well-known historical rules of plant cell division, such as those given by Hofmeister, Errera, and Sachs are developed and evaluated against observed cell divisions in the epidermal layer (L1) of Arabidopsis thaliana SAM. The method is general enough to allow additional terms for nongeometric properties such as internal concentration gradients and mechanical tensile forces.
- Authors:
-
- Department of Mathematics, California State University, Northridge, CA 91330,, Division of Biology and Biological Engineering and
- Division of Biology and Biological Engineering and
- Department of Computer Science, University of California, Irvine, CA 92697
- Division of Biology and Biological Engineering and, Howard Hughes Medical Institute, California Institute of Technology, Pasadena, CA 91125, and
- Publication Date:
- Research Org.:
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1235160
- Alternate Identifier(s):
- OSTI ID: 1349045
- Grant/Contract Number:
- FG02-88ER13873; R01-GM086883; P50GM76516
- Resource Type:
- Published Article
- Journal Name:
- Proceedings of the National Academy of Sciences of the United States of America
- Additional Journal Information:
- Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 112 Journal Issue: 15; Journal ID: ISSN 0027-8424
- Publisher:
- Proceedings of the National Academy of Sciences
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; Arabidopsis; cell division; computer modeling; live imaging
Citation Formats
Shapiro, Bruce E., Tobin, Cory, Mjolsness, Eric, and Meyerowitz, Elliot M. Analysis of cell division patterns in the Arabidopsis shoot apical meristem. United States: N. p., 2015.
Web. doi:10.1073/pnas.1502588112.
Shapiro, Bruce E., Tobin, Cory, Mjolsness, Eric, & Meyerowitz, Elliot M. Analysis of cell division patterns in the Arabidopsis shoot apical meristem. United States. https://doi.org/10.1073/pnas.1502588112
Shapiro, Bruce E., Tobin, Cory, Mjolsness, Eric, and Meyerowitz, Elliot M. Mon .
"Analysis of cell division patterns in the Arabidopsis shoot apical meristem". United States. https://doi.org/10.1073/pnas.1502588112.
@article{osti_1235160,
title = {Analysis of cell division patterns in the Arabidopsis shoot apical meristem},
author = {Shapiro, Bruce E. and Tobin, Cory and Mjolsness, Eric and Meyerowitz, Elliot M.},
abstractNote = {The stereotypic pattern of cell shapes in the Arabidopsis shoot apical meristem (SAM) suggests that strict rules govern the placement of new walls during cell division. When a cell in the SAM divides, a new wall is built that connects existing walls and divides the cytoplasm of the daughter cells. Because features that are determined by the placement of new walls such as cell size, shape, and number of neighbors are highly regular, rules must exist for maintaining such order. Here in this paper we present a quantitative model of these rules that incorporates different observed features of cell division. Each feature is incorporated into a "potential function" that contributes a single term to a total analog of potential energy. New cell walls are predicted to occur at locations where the potential function is minimized. Quantitative terms that represent the well-known historical rules of plant cell division, such as those given by Hofmeister, Errera, and Sachs are developed and evaluated against observed cell divisions in the epidermal layer (L1) of Arabidopsis thaliana SAM. The method is general enough to allow additional terms for nongeometric properties such as internal concentration gradients and mechanical tensile forces.},
doi = {10.1073/pnas.1502588112},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 15,
volume = 112,
place = {United States},
year = {Mon Mar 30 00:00:00 EDT 2015},
month = {Mon Mar 30 00:00:00 EDT 2015}
}
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https://doi.org/10.1073/pnas.1502588112
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