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פותח על ידי קלירמאש פתרונות בע"מ -
Mesophyll photosynthesis and guard cell metabolism impacts on stomatal behaviour
Year:
2014
Source of publication :
New Phytologist
Authors :
גרנות, דוד
;
.
קלי, גילאור
;
.
Volume :
203
Co-Authors:
Lawson, T., School of Biological Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom
Simkin, A.J., School of Biological Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom
Kelly, G., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet-Dagan, 50250, Israel
Granot, D., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet-Dagan, 50250, Israel
Facilitators :
From page:
1064
To page:
1081
(
Total pages:
18
)
Abstract:
Stomata control gaseous fluxes between the internal leaf air spaces and the external atmosphere. Guard cells determine stomatal aperture and must operate to ensure an appropriate balance between CO2 uptake for photosynthesis (A) and water loss, and ultimately plant water use efficiency (WUE). A strong correlation between A and stomatal conductance (gs) is well documented and often observed, but the underlying mechanisms, possible signals and metabolites that promote this relationship are currently unknown. In this review we evaluate the current literature on mesophyll-driven signals that may coordinate stomatal behaviour with mesophyll carbon assimilation. We explore a possible role of various metabolites including sucrose and malate (from several potential sources; including guard cell photosynthesis) and new evidence that improvements in WUE have been made by manipulating sucrose metabolism within the guard cells. Finally we discuss the new tools and techniques available for potentially manipulating cell-specific metabolism, including guard and mesophyll cells, in order to elucidate mesophyll-derived signals that coordinate mesophyll CO2 demands with stomatal behaviour, in order to provide a mechanistic understanding of these processes as this may identify potential targets for manipulations in order to improve plant WUE and crop yield. © 2014 New Phytologist Trust.
Note:
Related Files :
Aquaporins
guard cells
mesophyll cell
metabolism
Osmoregulation
photosynthesis
signal transduction
sucrose
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/nph.12945
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
סקירה
;
.
Language:
אנגלית
Editors' remarks:
ID:
22695
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:53
Scientific Publication
Mesophyll photosynthesis and guard cell metabolism impacts on stomatal behaviour
203
Lawson, T., School of Biological Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom
Simkin, A.J., School of Biological Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom
Kelly, G., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet-Dagan, 50250, Israel
Granot, D., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet-Dagan, 50250, Israel
Mesophyll photosynthesis and guard cell metabolism impacts on stomatal behaviour
Stomata control gaseous fluxes between the internal leaf air spaces and the external atmosphere. Guard cells determine stomatal aperture and must operate to ensure an appropriate balance between CO2 uptake for photosynthesis (A) and water loss, and ultimately plant water use efficiency (WUE). A strong correlation between A and stomatal conductance (gs) is well documented and often observed, but the underlying mechanisms, possible signals and metabolites that promote this relationship are currently unknown. In this review we evaluate the current literature on mesophyll-driven signals that may coordinate stomatal behaviour with mesophyll carbon assimilation. We explore a possible role of various metabolites including sucrose and malate (from several potential sources; including guard cell photosynthesis) and new evidence that improvements in WUE have been made by manipulating sucrose metabolism within the guard cells. Finally we discuss the new tools and techniques available for potentially manipulating cell-specific metabolism, including guard and mesophyll cells, in order to elucidate mesophyll-derived signals that coordinate mesophyll CO2 demands with stomatal behaviour, in order to provide a mechanistic understanding of these processes as this may identify potential targets for manipulations in order to improve plant WUE and crop yield. © 2014 New Phytologist Trust.
Scientific Publication
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