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Author Besnard, Fabrice ♦ Verux, Teva ♦ Hamant, Olivier
Source SpringerLink
Content type Text
Publisher SP Birkhäuser Verlag Basel
File Format PDF
Copyright Year ©2011
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Life sciences; biology
Subject Keyword Developmental biology ♦ Signaling networks ♦ Cell–cell communication ♦ Systems biology ♦ Biomechanics ♦ Plant development ♦ Meristem ♦ Morphogens ♦ Hormonal crosstalk ♦ Auxin ♦ Cytokinin ♦ Life Sciences ♦ Biochemistry ♦ Cell Biology ♦ Biomedicine general
Abstract In multicellular organisms, the coordination of cell behaviors largely relies on biochemical and biophysical signals. Understanding how such signals control development is often challenging, because their distribution relies on the activity of individual cells and, in a feedback loop, on tissue behavior and geometry. This review focuses on one of the best-studied structures in biology, the shoot apical meristem (SAM). This tissue is responsible for the production of all the aerial parts of a plant. In the SAM, a population of stem cells continuously produces new cells that are incorporated in lateral organs, such as leaves, branches, and flowers. Organogenesis from stem cells involves a tight regulation of cell identity and patterning as well as large-scale morphogenetic events. The gene regulatory network controlling these processes is highly coordinated in space by various signals, such as plant hormones, peptides, intracellular mobile factors, and mechanical stresses. Many crosstalks and feedback loops interconnecting these pathways have emerged in the past 10 years. The plant hormone auxin and mechanical forces have received more attention recently and their role is more particularly detailed here. An integrated view of these signaling networks is also presented in order to help understanding how robust shape and patterning can emerge from these networks.
ISSN 1420682X
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2011-06-08
Publisher Place Basel
e-ISSN 14209071
Journal Cellular and Molecular Life Sciences
Volume Number 68
Issue Number 17
Page Count 22
Starting Page 2885
Ending Page 2906

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Source: SpringerLink