Smaller, faster stomata : scaling of stomatal size, rate of response, and stomatal conductance

Maximum and minimum stomatal conductance, as well as stomatal size and rate of response, are known to vary widely across plant species, but the functional relationship between these static and dynamic stomatal properties is unknown. The objective of this study was to test three hypotheses: (i) opera...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 64(2013), 2 vom: 09. Jan., Seite 495-505
1. Verfasser: Drake, Paul L (VerfasserIn)
Weitere Verfasser: Froend, Ray H, Franks, Peter J
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Water 059QF0KO0R Carbon Dioxide 142M471B3J
LEADER 01000caa a22002652 4500
001 NLM223673714
003 DE-627
005 20240321232808.0
007 cr uuu---uuuuu
008 231224s2013 xx |||||o 00| ||eng c
024 7 |a 10.1093/jxb/ers347  |2 doi 
028 5 2 |a pubmed24n1338.xml 
035 |a (DE-627)NLM223673714 
035 |a (NLM)23264516 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Drake, Paul L  |e verfasserin  |4 aut 
245 1 0 |a Smaller, faster stomata  |b scaling of stomatal size, rate of response, and stomatal conductance 
264 1 |c 2013 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Completed 13.06.2013 
500 |a Date Revised 21.03.2024 
500 |a published: Print-Electronic 
500 |a Citation Status MEDLINE 
520 |a Maximum and minimum stomatal conductance, as well as stomatal size and rate of response, are known to vary widely across plant species, but the functional relationship between these static and dynamic stomatal properties is unknown. The objective of this study was to test three hypotheses: (i) operating stomatal conductance under standard conditions (g (op)) correlates with minimum stomatal conductance prior to morning light [g (min(dawn))]; (ii) stomatal size (S) is negatively correlated with g (op) and the maximum rate of stomatal opening in response to light, (dg/dt)(max); and (iii) g (op) correlates negatively with instantaneous water-use efficiency (WUE) despite positive correlations with maximum rate of carboxylation (Vc (max)) and light-saturated rate of electron transport (J (max)). Using five closely related species of the genus Banksia, the above variables were measured, and it was found that all three hypotheses were supported by the results. Overall, this indicates that leaves built for higher rates of gas exchange have smaller stomata and faster dynamic characteristics. With the aid of a stomatal control model, it is demonstrated that higher g (op) can potentially expose plants to larger tissue water potential gradients, and that faster stomatal response times can help offset this risk 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 7 |a Water  |2 NLM 
650 7 |a 059QF0KO0R  |2 NLM 
650 7 |a Carbon Dioxide  |2 NLM 
650 7 |a 142M471B3J  |2 NLM 
700 1 |a Froend, Ray H  |e verfasserin  |4 aut 
700 1 |a Franks, Peter J  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Journal of experimental botany  |d 1985  |g 64(2013), 2 vom: 09. Jan., Seite 495-505  |w (DE-627)NLM098182706  |x 1460-2431  |7 nnns 
773 1 8 |g volume:64  |g year:2013  |g number:2  |g day:09  |g month:01  |g pages:495-505 
856 4 0 |u http://dx.doi.org/10.1093/jxb/ers347  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |d 64  |j 2013  |e 2  |b 09  |c 01  |h 495-505