Summary
Plants use light as their main source of energy and to gather information about their surroundings. The light environment is monitored through an extensive set of photoreceptors and largely dictates plant development through induction of processes such as germination and flowering, entrainment of the circadian clock and photomorphogenic responses. Plants display remarkable phenotypic plasticity upon perception of changes in the light, ranging from seedling de-etiolation to shade avoidance and phototropic responses in competition for light. Here, we describe photomorphogenic responses and their underlying mechanisms such as they occur in a leaf canopy. This shade avoidance review will largely focus on the model plant species Arabidopsis thaliana as the underlying mechanisms controlling shade avoidance are particularly well elucidated in this species.
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Abbreviations
- ABA :
-
Abscisic acid
- B:
-
Blue light
- BR:
-
Brassinosteroid
- Cry:
-
Cryptochrome
- ET:
-
Ethylene
- FR:
-
Far-red light
- GA:
-
Gibberellin
- PAR :
-
Photosynthetically Active Radiation
- Phot:
-
Phototropin
- Phy:
-
Phytochrome
- PIF:
-
Phytochrome -interacting Factor
- R:
-
Red light
- R:FR:
-
Red: Far-red light ratio
- UV:
-
Ultraviolet light
- VOC:
-
Volatile Organic Compound
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de Wit, M., Pierik, R. (2016). Photomorphogenesis and Photoreceptors. In: Hikosaka, K., Niinemets, Ü., Anten, N. (eds) Canopy Photosynthesis: From Basics to Applications. Advances in Photosynthesis and Respiration, vol 42. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-7291-4_6
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DOI: https://doi.org/10.1007/978-94-017-7291-4_6
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