Jasmonates induce intracellular alkalinization and closure of Paphiopedilum guard cells

Jasmonates (jasmonic acid or methyl jasmonate) promote stomatal closure in Paphiopedilum Supersuk (RHS, 1973) and P. tonsum (Rchb.f) Stein. Studies on guard cells loaded with pH dependent fluorescent dyes show that jasmonates cause intracellular alkalinization of up to 0.5 pH units within 5 to 15 mi...

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Veröffentlicht in:	Annals of botany 1997, Vol.80 (14), p.485-489
Hauptverfasser:	Gehring, C.A, Irving, H.R, McConchie, R, Parish, R.W
Format:	Artikel
Sprache:	eng
Schlagworte:	alkalinity cytosol guard cells inhibition jasmonic acid methyl jasmonate Paphiopedilum paphiopedilum tonosum propionic acid stomata stomatal movement
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container_title	Annals of botany
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creator	Gehring, C.A Irving, H.R McConchie, R Parish, R.W
description	Jasmonates (jasmonic acid or methyl jasmonate) promote stomatal closure in Paphiopedilum Supersuk (RHS, 1973) and P. tonsum (Rchb.f) Stein. Studies on guard cells loaded with pH dependent fluorescent dyes show that jasmonates cause intracellular alkalinization of up to 0.5 pH units within 5 to 15 min. Jasmonate-induced alkalinization always preceded stomatal closure and where alkalinization was not detected no closure occurred. Propionic acid inhibited jasmonate-induced stomatal closure, suggesting that jasmonate-induced intracellular alkalinization is involved in guard cell movements.
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Studies on guard cells loaded with pH dependent fluorescent dyes show that jasmonates cause intracellular alkalinization of up to 0.5 pH units within 5 to 15 min. Jasmonate-induced alkalinization always preceded stomatal closure and where alkalinization was not detected no closure occurred. 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Studies on guard cells loaded with pH dependent fluorescent dyes show that jasmonates cause intracellular alkalinization of up to 0.5 pH units within 5 to 15 min. Jasmonate-induced alkalinization always preceded stomatal closure and where alkalinization was not detected no closure occurred. Propionic acid inhibited jasmonate-induced stomatal closure, suggesting that jasmonate-induced intracellular alkalinization is involved in guard cell movements.</abstract></addata></record>
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source	Jstor Complete Legacy; Oxford University Press Journals; PubMed Central; Alma/SFX Local Collection; EZB Electronic Journals Library
subjects	alkalinity cytosol guard cells inhibition jasmonic acid methyl jasmonate Paphiopedilum paphiopedilum tonosum propionic acid stomata stomatal movement
title	Jasmonates induce intracellular alkalinization and closure of Paphiopedilum guard cells
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