Stress-induced morphogenic responses: growing out of trouble?
Plants exposed to sub-lethal abiotic stress conditions exhibit a broad range of morphogenic responses. Despite the diversity of phenotypes, a generic 'stress-induced morphogenic response' can be recognized that appears to be carefully orchestrated and comprises three components: (a) inhibition of cell elongation, (b) localized stimulation of cell division and (c) alterations in cell differentiation status. It is hypothesized that the similarities in the morphogenic responses induced by distinct stresses, reflect common molecular processes such as increased ROS-production and altered phytohormone transport and/or metabolism. The stress-induced morphogenic response (SIMR) is postulated to be part of a general acclimation strategy, whereby plant growth is redirected to diminish stress exposure.
Potters
Geert
G
Department of Applied Biological Sciences, University of Antwerp, Groenenborgerlaan 171, B-2020 Belgium.
Pasternak
Taras P
TP
Guisez
Yves
Y
Palme
Klaus J
KJ
Jansen
Marcel A K
MA
D000222:Adaptation, Physiological; D002453:Cell Cycle / Q000502:physiology; D002473:Cell Wall / Q000502:physiology; D007210:Indoleacetic Acids / Q000378:metabolism; D019216:Metals, Heavy / Q000633:toxicity; D059828:Plant Cells; D063245:Plant Development; D018521:Plant Physiological Phenomena; D010944:Plants / Q000187:drug effects; D014466:Ultraviolet Rays / Q000009:adverse effects
D007210:Indoleacetic Acids; D019216:Metals, Heavy