Assessing the potential functions of nocturnal stomatal conductance in C3 and C4 plants

© 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1984. - 223(2019), 4 vom: 05. Sept., Seite 1696-1706
1. Verfasser: Resco de Dios, Víctor (VerfasserIn)
Weitere Verfasser: Chowdhury, Faqrul I, Granda, Elena, Yao, Yinan, Tissue, David T
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Review circadian clock fitness nocturnal processes plant growth stomata transpiration Carbon Dioxide mehr... 142M471B3J Carbon 7440-44-0
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520 |a Nocturnal stomatal conductance contributes to water loss at night without carbon gain in C3 or C4 plants because photosynthesis does not occur in the dark. The functional relevance of nocturnal conductance thus remains an unresolved conundrum. Here, we review and re-analyse previously published datasets on nocturnal conductance (gn ) globally (176 species) to synthesize our current understanding on its potential biological function and to identify remaining research gaps. We found that gn was positively correlated with relative growth rate, which is compatible with the postulate that circadian-driven nocturnal conductance enhances predawn stomatal conductance, thereby priming stomata for photosynthesis in early daylight. The variation in gn across plant species and functional types was not consistent with the hypotheses that the main function of gn is to: remove excess CO2, which might limit growth; enhance oxygen delivery to the functional sapwood; enhance nutrient supply; or that gn is due to stomatal leakiness. We suggest further study regarding the potential of gn to be an important functional and ecological trait influencing competitive outcomes and we outline a research programme to achieve that objective 
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650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Review 
650 4 |a circadian clock 
650 4 |a fitness 
650 4 |a nocturnal processes 
650 4 |a plant growth 
650 4 |a stomata 
650 4 |a transpiration 
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700 1 |a Chowdhury, Faqrul I  |e verfasserin  |4 aut 
700 1 |a Granda, Elena  |e verfasserin  |4 aut 
700 1 |a Yao, Yinan  |e verfasserin  |4 aut 
700 1 |a Tissue, David T  |e verfasserin  |4 aut 
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