Rules and Self-Organizing Properties of Post-embryonic Plant Organ Cell Division Patterns. von Wangenheim, D., Fangerau, J., Schmitz, A., Smith, R. S, Leitte, H., Stelzer, E. H K, & Maizel, A. Current Biology, 26(4):439–449, January, 2016. 00065![Rules and Self-Organizing Properties of Post-embryonic Plant Organ Cell Division Patterns. [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Plants form new organs with patterned tissue organization throughout their lifespan. It is unknown whether this robust post-embryonic organ formation results from stereotypic dynamic processes, in which the arrangement of cells follows rigid rules. Here, we combine modeling with empirical observations of whole-organ development to identify the principles governing lateral root formation in Arabidopsis. Lateral roots derive from a small pool of founder cells in which some take a dominant role as seen by lineage tracing. The first division of the founders is asymmetric, tightly regulated, and determines the formation of a layered structure. Whereas the pattern of subsequent cell divisions is not stereotypic between different samples, it is characterized by a regular switch in division plane orientation. This switch is also necessary for the appearance of patterned layers as a result of the apical growth of the primordium. Our data suggest that lateral root morphogenesis is based on a limited set of rules. They determine cell growth and division orientation. The organ-level coupling of the cell behavior ensures the emergence of the lateral root's characteristic features. We propose that self-organizing, non-deterministic modes of development account for the robustness of plant organ morphogenesis.
@article{von_wangenheim_rules_2016,
title = {Rules and {Self}-{Organizing} {Properties} of {Post}-embryonic {Plant} {Organ} {Cell} {Division} {Patterns}.},
volume = {26},
copyright = {All rights reserved},
url = {http://linkinghub.elsevier.com/retrieve/pii/S096098221501578X},
doi = {10.1016/j.cub.2015.12.047},
abstract = {Plants form new organs with patterned tissue organization throughout their lifespan. It is unknown whether this robust post-embryonic organ formation results from stereotypic dynamic processes, in which the arrangement of cells follows rigid rules. Here, we combine modeling with empirical observations of whole-organ development to identify the principles governing lateral root formation in Arabidopsis. Lateral roots derive from a small pool of founder cells in which some take a dominant role as seen by lineage tracing. The first division of the founders is asymmetric, tightly regulated, and determines the formation of a layered structure. Whereas the pattern of subsequent cell divisions is not stereotypic between different samples, it is characterized by a regular switch in division plane orientation. This switch is also necessary for the appearance of patterned layers as a result of the apical growth of the primordium. Our data suggest that lateral root morphogenesis is based on a limited set of rules. They determine cell growth and division orientation. The organ-level coupling of the cell behavior ensures the emergence of the lateral root's characteristic features. We propose that self-organizing, non-deterministic modes of development account for the robustness of plant organ morphogenesis.},
number = {4},
journal = {Current Biology},
author = {von Wangenheim, Daniel and Fangerau, Jens and Schmitz, Alexander and Smith, Richard S and Leitte, Heike and Stelzer, Ernst H K and Maizel, Alexis},
month = jan,
year = {2016},
note = {00065},
pages = {439--449},
}
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