Stress-related Levels of Abscisic Acid in Guard Cell Protoplasts of Vicia Faba L

Overview

Journal Planta

Specialty Biology

Date 2013 Nov 27

PMID 24275913

Citations 6

Authors

E W Weiler

H Schnabl

C Hornberg

Affiliations

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Abstract

Levels of abscisis acid (ABA) were determined in isolated guard cell (GCP) and mesophyll cell (MCP) protoplasts of Vicia faba L. in relation to water stress. Incubation of GCP and MCP in 0.4 M or 0.8 M mannitol resulted in an average increase in the level of free abscisic acid (ABA) in the cells of 34% (GCP) and 38% (MCP) within 15-60 min. It is concluded that guard cell protoplasts form ABA in response to osmotic stress.

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Movement and compartmentation of abscisic acid in guard cells of Valerianella locusta: Effects of osmotic stress, external H(+)-concentration and fusicoccin.

Behl R, Hartung W Planta. 2013; 168(3):360-8.

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Abscisic-acid contents and concentrations in protoplasts from guard cells and mesophyll cells ofVicia faba L.

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Morris P, Weiler E, Maddock S, Jones M, Lenton J, Bowles D Planta. 2013; 173(1):110-6.

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ABA signaling in stomatal guard cells: lessons from Commelina and Vicia.

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