TITLE:
A Botanist’s Cognitive View on Plant Growth: Cross-Talk between Developmental and Sensitivity Networks
AUTHORS:
Dhananjay K. Pandey, Bhupendra Chaudhary
KEYWORDS:
Tropism, Anisotropy, Plant Development, Polar Auxin Transport, Phototropic Response, Gravitropic Response
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.7 No.15,
November
24,
2016
ABSTRACT: An alteration in plant phenotypes assisted by their responses to the environmental
stimuli (=tropism) has been fundamental to understand the “plant sensitivity ” that
plays a crucial role in plants’ adaptive success. Plants succeed through the deployment
of moderators controlling polar auxin-transport determining organ bending.
Stimulus-specific effectors can be synthesized by the outer peripheral cells at the
bending sites where they target highly conserved cellular processes and potentially
persuade the plant sensitivity at large. Remarkably, the peripheral cells require different
time-intervals to achieve the threshold expression-levels of stimulus-specific
molecular responders. After stimulus perception, tropic curvatures (especially at
growing root-apices) are duly coordinated via integrated chemical and electrical signalling
which is the key to cellular communications. Thus, the acquired phenotypic
alterations are the perplexed outcome of plant’s developmental pace, complemented
by the sensitivity. A novel aspect of this study is to advance our understanding of
plant developmental-programming and the extent of plant-sensitivity, determining
the plant growth and their future applications.