Sucrose-induced stomatal closure is conserved across evolution

As plants evolved to function on land, they developed stomata for effective gas exchange, for photosynthesis and for controlling water loss. We have recently shown that sugars, as the end product of photosynthesis, close the stomata of various angiosperm species, to coordinate sugar production with...

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Bibliographic Details
Published in:PloS one 2018-10, Vol.13 (10), p.e0205359-e0205359
Main Authors: Kottapalli, Jayaram, David-Schwartz, Rakefet, Khamaisi, Belal, Brandsma, Danja, Lugassi, Nitsan, Egbaria, Aiman, Kelly, Gilor, Granot, David
Format: Article
Language:English
Subjects:
Apertures
Biology and Life Sciences
Computer and Information Sciences
Evolution
Flowers & plants
Gas exchange
Glucose
Influence
Leaves
Mosses
Photosynthesis
Phylogeny
Physical Sciences
Plant sciences
Potassium
Sensors
Sorghum
Species
Stomata
Sucrose
Sugar
Water loss
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Summary:As plants evolved to function on land, they developed stomata for effective gas exchange, for photosynthesis and for controlling water loss. We have recently shown that sugars, as the end product of photosynthesis, close the stomata of various angiosperm species, to coordinate sugar production with water loss. In the current study, we examined the sugar responses of the stomata of phylogenetically different plant species and species that employ different photosynthetic mechanisms (i.e., C3, C4 and CAM). To examine the effect of sucrose on stomata, we treated leaves with sucrose and then measured their stomatal apertures. Sucrose reduced stomatal aperture, as compared to an osmotic control, suggesting that regulation of stomata by sugars is a trait that evolved early in evolutionary history and has been conserved across different groups of plants.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0205359