scholarly journals Physical Forces Regulate Plant Development and Morphogenesis

2014 ◽  
Vol 24 (10) ◽  
pp. R475-R483 ◽  
Author(s):  
Arun Sampathkumar ◽  
An Yan ◽  
Pawel Krupinski ◽  
Elliot M. Meyerowitz
2019 ◽  
Vol 70 (14) ◽  
pp. 3507-3519 ◽  
Author(s):  
Benoit Landrein ◽  
Gwyneth Ingram

Abstract As multicellular organisms, plants acquire characteristic shapes through a complex set of biological processes known as morphogenesis. Biochemical signalling underlies much of development, as it allows cells to acquire specific identities based on their position within tissues and organs. However, as growing physical structures, plants, and their constituent cells, also experience internal and external physical forces that can be perceived and can influence key processes such as growth, polarity, and gene expression. This process, which adds another layer of control to growth and development, has important implications for plant morphogenesis. This review provides an overview of recent research into the role of mechanical signals in plant development and aims to show how mechanical signalling can be used, in concert with biochemical signals, as a cue allowing cells and tissues to coordinate their behaviour and to add robustness to developmental processes.


2005 ◽  
Vol 17 (4) ◽  
pp. 335-344 ◽  
Author(s):  
Marcelo Carnier Dornelas ◽  
Odair Dornelas

Goethe’s seminal scientific work, Versuch die Metamorphose der Pflanzen zu erklaren (An Attempt to Interpret the Metamorphosis of Plants) dated from 1790, has created the foundations for many domains of modern plant biology. The archetypal leaf concept, which considers floral organs as modified leaves, besides being the best known has been proven true, following the description of the ABC molecular model of floral organ identity determination during the last decade. Here we analyze the whole theoretical frame of Goethe’s 1790 publication and present two previously misconsidered aspects of this work: The "refinement of the sap" concept as a directional principle and the "cycles of contractions and expansions" as cycles of differential determination of the shoot apical meristem. The reinterpretation of these concepts are in line with the modern view that molecular networks integrate both environmental and endogenous cues and regulate plant development. This reassessment also helps to elaborate a theoretical frame that considers the evolutionary conservation of the molecular mechanisms that regulate plant development.


2020 ◽  
Vol 63 (11) ◽  
pp. 1768-1770
Author(s):  
Baoyuan Qu ◽  
Yuan Qin ◽  
Yang Bai

2003 ◽  
Vol 4 ◽  
pp. spotlight-20030820-02
Author(s):  
C L Bishop

2020 ◽  
Author(s):  
Hangyuan Cheng ◽  
Wei Wang ◽  
Muyu Yang ◽  
Yuyi Zhou

eLife ◽  
2017 ◽  
Vol 6 ◽  
Author(s):  
Monica Pia Caggiano ◽  
Xiulian Yu ◽  
Neha Bhatia ◽  
André Larsson ◽  
Hasthi Ram ◽  
...  

In plants the dorsoventral boundary of leaves defines an axis of symmetry through the centre of the organ separating the top (dorsal) and bottom (ventral) tissues. Although the positioning of this boundary is critical for leaf morphogenesis, how the boundary is established and how it influences development remains unclear. Using live-imaging and perturbation experiments we show that leaf orientation, morphology and position are pre-patterned by HD-ZIPIII and KAN gene expression in the shoot, leading to a model in which dorsoventral genes coordinate to regulate plant development by localizing auxin response between their expression domains. However we also find that auxin levels feedback on dorsoventral patterning by spatially organizing HD-ZIPIII and KAN expression in the shoot periphery. By demonstrating that the regulation of these genes by auxin also governs their response to wounds, our results also provide a parsimonious explanation for the influence of wounds on leaf dorsoventrality.


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