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Differential growth regulation in plants—the acid growth balloon theory
Ist Teil von
Current opinion in plant biology, 2015-12, Vol.28, p.55-59
Ort / Verlag
England: Elsevier Ltd
Erscheinungsjahr
2015
Link zum Volltext
Quelle
ScienceDirect Journals (5 years ago - present)
Beschreibungen/Notizen
•Plant cells are immobile and show supracellular growth.•Leader tissues steer organ growth.•Auxin controls cell wall properties and vacuolar occupancy, determining cellular growth.•Cellular occupancy of the vacuole may allow cytosol homeostasis during growth.
‘To grow or not to grow’ is a central question in developmental biology and is nowadays tackled wonderfully by cell-biological approaches in various species. The rigid plant cell wall is a neat evolutionary invention for sessile organisms, which require form stability in the face of an ever-changing natural environment. However, this cellular packaging places special constrains on mechanisms that guide cellular growth. Considering the largely non-reversible, man-made environmental changes and our dependency on plant products, further insights into plant-specific growth regulation are highly desirable. Here we provide our personal, current view on cellular growth regulation in plants, highlighting the mutual importance of extra- and intracellular processes.