dc.contributor.author |
Cernusak, Lucas A. |
en |
dc.contributor.author |
Winter, Klaus |
en |
dc.contributor.author |
Turner, Benjamin L. |
en |
dc.date.accessioned |
2011-12-20T14:44:53Z |
|
dc.date.available |
2011-12-20T14:44:53Z |
|
dc.date.issued |
2011 |
|
dc.identifier.citation |
Cernusak, Lucas A., Winter, Klaus, and Turner, Benjamin L. 2011. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F17532">Transpiration modulates phosphorus acquisition in tropical tree seedlings</a>." <em>Tree Physiology</em>. 31 (8):878–885. <a href="https://doi.org/10.1093/treephys/tpr077">https://doi.org/10.1093/treephys/tpr077</a> |
en |
dc.identifier.issn |
0829-318X |
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dc.identifier.uri |
http://hdl.handle.net/10088/17532 |
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dc.description.abstract |
Several experiments were conducted with tropical tree and liana seedlings in which transpiration ratio and leaf phosphorus to carbon ratio (P:C) were measured. Transpiration ratio was expressed as kg H2O transpired g-1 C incorporated into plant biomass, and leaf P:C as mg P g-1 C. Leaf P:C was positively correlated with transpiration ratio across 19 species for plants grown under similar conditions (R2 ?=? 0.35, P ?<? 0.01, n ?=? 19). For five species in the dataset, multiple treatments were imposed to cause intra-specific variation in transpiration ratio. Within four of these five species, leaf P:C correlated positively with transpiration ratio. The slope and strength of the correlation varied among species. In one experiment, whole-plant P:C was measured in addition to leaf P:C. Patterns of correlation between whole-plant P:C and transpiration ratio were similar to those between leaf P:C and transpiration ratio. Together, these observations suggest that transpiration can influence the rate of P uptake from soil in tropical tree and liana seedlings. We suggest that this occurs through transport of inorganic phosphate and organic P compounds to root surfaces by transpiration-induced mass flow of the soil solution. The positive correlation between leaf P:C and transpiration ratio suggests that leaf P:C could decline in tropical forests as atmospheric CO2 concentration rises, due to decreasing transpiration ratios. |
en |
dc.relation.ispartof |
Tree Physiology |
en |
dc.title |
Transpiration modulates phosphorus acquisition in tropical tree seedlings |
en |
dc.type |
Journal Article |
en |
dc.identifier.srbnumber |
102193 |
|
dc.identifier.doi |
10.1093/treephys/tpr077 |
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rft.jtitle |
Tree Physiology |
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rft.volume |
31 |
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rft.issue |
8 |
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rft.spage |
878 |
|
rft.epage |
885 |
|
dc.description.SIUnit |
Peer-reviewed |
en |
dc.description.SIUnit |
STRI |
en |
dc.citation.spage |
878 |
|
dc.citation.epage |
885 |
|