Is proline involved in stomata regulation of Commelina communis plants recovering from salinity stress?

Autor:	Aviva Klein, Chanan Itai
Rok vydání:	1989
Předmět:	Stomatal conductance biology Physiology Cell Biology Plant Science General Medicine Commelinaceae biology.organism_classification Salinity chemistry.chemical_compound chemistry Cytokinin Botany Genetics Commelina communis Proline Incubation Abscisic acid
Zdroj:	Physiologia Plantarum. 75:399-404
ISSN:	1399-3054 0031-9317
DOI:	10.1111/j.1399-3054.1989.tb04645.x
Popis:	Plants of Commelina communis L. were grown in culture solution to which NaCl was added for 48 h. The solutions were then replaced with normal medium, so that the plants could recover from the stress. The water potential increased almost to that of the controls during 4 h of recovery, but stomatal resistance stayed high. Cytokinin treatment of leaf discs failed to enhance recovery of stomatal aperture, although it enhanced stomatal recovery of identically treated epidermal tissue. Proline levels in leaves correlated well with stomatal resistance. Incubation of epidermal tissue in D-proline inhibited stomatal opening. NaCl and benzyladenine interacted with the effect of proline, and the effect of abscisic acid and was additive to that of proline.
Databáze:	OpenAIRE
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