dc.contributor.author |
Lovelock, Catherine E. |
en |
dc.contributor.author |
Kursar, Thomas A. |
en |
dc.contributor.author |
Skillman, John B. |
en |
dc.contributor.author |
Winter, Klaus |
en |
dc.date.accessioned |
2012-02-21T13:50:02Z |
|
dc.date.available |
2012-02-21T13:50:02Z |
|
dc.date.issued |
1998 |
|
dc.identifier.citation |
Lovelock, Catherine E., Kursar, Thomas A., Skillman, John B., and Winter, Klaus. 1998. "<a href="https://repository.si.edu/handle/10088/17961">Photoinhibition in Tropical Forest Understory Species With Short- and Long-Lived Leaves</a>." <em>Functional Ecology</em>. 12 (4):533–560. <a href="https://doi.org/10.1046/j.1365-2435.1998.00235.x">https://doi.org/10.1046/j.1365-2435.1998.00235.x</a> |
en |
dc.identifier.issn |
0269-8463 |
|
dc.identifier.uri |
http://hdl.handle.net/10088/17961 |
|
dc.description.abstract |
Shade-tolerant species that inhabit the understorey have a range of leaf lifetimes (from 1 to 8 years), which may indicate a variety of strategies for dealing with increases in light associated with tree-fall gaps. We hypothesized that species with long-lived leaves should be more tolerant of an increase in light levels than species with short-lived leaves. In understorey plants of 12 shade-tolerant rain-forest species, photoinhibition, measured as a reduction in the chlorophyll fluorescence parameter F v/F m when leaf discs were exposed to 1h at 1000µmol m–2s–1, was greater in species with short-lived leaves than species with long-lived leaves. Less photoinhibition in species with long-lived leaves was not associated with higher levels of non-photochemical dissipation (NPQ) of absorbed light, but may be the result of a higher yield of photosystem II compared with short-lived leaves. Thus, species with long-lived leaves are more tolerant of abrupt increases in light that occur when tree-fall gaps are formed than species with short-lived leaves. Discs from leaves of all species growing in tree-fall gaps had higher levels of NPQ, yield of photosystem II and more rapid recovery from photoinhibition than leaves developed in the understorey; however, there were no differences among species with short- and long-lived leaves. |
en |
dc.relation.ispartof |
Functional Ecology |
en |
dc.title |
Photoinhibition in Tropical Forest Understory Species With Short- and Long-Lived Leaves |
en |
dc.type |
Journal Article |
en |
dc.identifier.srbnumber |
49734 |
|
dc.identifier.doi |
10.1046/j.1365-2435.1998.00235.x |
|
rft.jtitle |
Functional Ecology |
|
rft.volume |
12 |
|
rft.issue |
4 |
|
rft.spage |
533 |
|
rft.epage |
560 |
|
dc.description.SIUnit |
STRI |
en |
dc.description.SIUnit |
SERC |
en |
dc.citation.spage |
533 |
|
dc.citation.epage |
560 |
|