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פותח על ידי קלירמאש פתרונות בע"מ -
Expression of Arabidopsis hexokinase in tobacco guard cells increases water-use efficiency and confers tolerance to drought and salt stress
Year:
2019
Source of publication :
צמחים
Authors :
אגבאריה, איימן
;
.
גרנות, דוד
;
.
וולף, דליה
;
.
ידב, בריג'ש סינג
;
.
כרמי, ניר
;
.
לוגסי, ניצן
;
.
נויהאוס, אפרת
;
.
קלי, גילאור
;
.
רווה, ערן
;
.
Volume :
8
Co-Authors:
Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Abiotic stresses such as drought and saline water impose major limitations on plant growth. Modulation of stomatal behavior may help plants cope with such stresses by reducing both water loss and salt uptake. Hexokinase (HXK) is a sugar-phosphorylating enzyme involved in guard cells’ sugar-sensing, mediating stomatal closure and coordinating photosynthesis with transpiration. We generated transgenic tobacco lines expressing the Arabidopsis hexokinase1 (AtHXK1) under the guard cell-specific promoter KST1 and examined those plants using growth room and greenhouse experiments. The expression of AtHXK1 in tobacco guard cells reduced stomatal conductance and transpiration by about 25% with no negative effects on photosynthesis or growth, leading to increased water-use efficiency. In addition, these plants exhibited tolerance to drought and salt stress due to their lower transpiration rate, indicating that improved stomatal function has the potential to improve plant performance under stress conditions. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Note:
Related Files :
abiotic stress
arabidopsis
drought
drought
guard cells
hexokinase
Nicotiana
salt
tobacco
transpiration
water use efficiency
עוד תגיות
תוכן קשור
More details
DOI :
10.3390/plants8120613
Article number:
613
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
45767
Last updated date:
02/03/2022 17:27
Creation date:
12/01/2020 09:55
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Scientific Publication
Expression of Arabidopsis hexokinase in tobacco guard cells increases water-use efficiency and confers tolerance to drought and salt stress
8
Expression of Arabidopsis hexokinase in tobacco guard cells increases water-use efficiency and confers tolerance to drought and salt stress

Abiotic stresses such as drought and saline water impose major limitations on plant growth. Modulation of stomatal behavior may help plants cope with such stresses by reducing both water loss and salt uptake. Hexokinase (HXK) is a sugar-phosphorylating enzyme involved in guard cells’ sugar-sensing, mediating stomatal closure and coordinating photosynthesis with transpiration. We generated transgenic tobacco lines expressing the Arabidopsis hexokinase1 (AtHXK1) under the guard cell-specific promoter KST1 and examined those plants using growth room and greenhouse experiments. The expression of AtHXK1 in tobacco guard cells reduced stomatal conductance and transpiration by about 25% with no negative effects on photosynthesis or growth, leading to increased water-use efficiency. In addition, these plants exhibited tolerance to drought and salt stress due to their lower transpiration rate, indicating that improved stomatal function has the potential to improve plant performance under stress conditions. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Scientific Publication
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