serval:BIB_B45F2BD0CB42
Shade avoidance: phytochrome signalling and other aboveground neighbour detection cues.
10.1093/jxb/ert389
000338125600002
24323503
Pierik
R.
author
de Wit
M.
author
article
review
2014
Journal of Experimental Botany
1460-2431
0022-0957
journal
65
11
2815-2824
Plants compete with neighbouring vegetation for limited resources. In competition for light, plants adjust their architecture to bring the leaves higher in the vegetation where more light is available than in the lower strata. These architectural responses include accelerated elongation of the hypocotyl, internodes and petioles, upward leaf movement (hyponasty), and reduced shoot branching and are collectively referred to as the shade avoidance syndrome. This review discusses various cues that plants use to detect the presence and proximity of neighbouring competitors and respond to with the shade avoidance syndrome. These cues include light quality and quantity signals, mechanical stimulation, and plant-emitted volatile chemicals. We will outline current knowledge about each of these signals individually and discuss their possible interactions. In conclusion, we will make a case for a whole-plant, ecophysiology approach to identify the relative importance of the various neighbour detection cues and their possible interactions in determining plant performance during competition.
eng
60_published
true
University of Lausanne
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