Effects of light environment and successional status on lightfleck use by understory trees of temperate and tropical forests
Open Access
- 1 January 1996
- journal article
- Published by Oxford University Press (OUP) in Tree Physiology
- Vol. 16 (1-2) , 69-80
- https://doi.org/10.1093/treephys/16.1-2.69
Abstract
Utilization efficiency (LUE) of lightflecks by leaves increases with decreasing duration of the lightfleck, and depends on photosynthetic induction. Sun and shade leaves differ with respect to photosynthetic induction. Shade leaves may become fully induced by a series of light pulses, whereas photosynthetic induction of leaves from partial shade or full sun depends on continuous light. Additionally, shade leaves maintain a higher induction state over longer periods in dim light or darkness than sun leaves. Both features are advantageous to shade leaves in a highly dynamic light environment.Keywords
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