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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2019.04.023
|2 doi
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|a pubmed24n0988.xml
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|a (PII)S0981-9428(19)30157-3
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
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|a Lee, Seong Hee
|e verfasserin
|4 aut
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|a Regulation of water transport in Arabidopsis by methyl jasmonate
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 17.06.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2019 Elsevier Masson SAS. All rights reserved.
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|a Following a stress event, jasmonate-dependent signaling pathway triggers a shift from growth to defense responses that are accompanied by the cessation of growth in many plants. However, the processes leading to this growth inhibition remain obscure. In this study, we provide evidence for a rapid inhibition of cell hydraulic conductivity (Lp) by methyl jasmonate (MeJA) in the roots of wild-type Arabidopsis within 0.5 h of 20 and 50 μM MeJA treatments. We also demonstrate that MeJA did not affect Lp in fad3-2 and fad7-2 Arabidopsis mutants that are deficient in jasmonate precursor, linolenic acid. The reductions of Lp in wild-type plants were accompanied by the down-regulation of several plasma membrane intrinsic protein (PIP) isoforms, and dephosphorylation. Treatments with HgCl2 did not further reduce Lp in the wild-type plants, but significantly reduced Lp in the fad3-2 and fad7-2 that had been first treated with MeJA. Continuous prolonged exposure to exogenous 50 μM MeJA inhibited the relative growth rates (RGR) of shoots and net photosynthesis (Pn) in the Arabidopsis wild-type and fad7-2 plants, but had no effect on the RGR of roots. The results demonstrated that a reduction of aquaporin (AQP)-mediated water transport was the initial target of MeJA exposure, and may contribute to the processes of growth inhibition by MeJA
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|a Journal Article
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|a Aquaporins
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|a Cell hydraulic conductivity
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|a Methyl jasmonate
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|a Okadaic acid
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|a Phosphorylation
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|a Plant growth
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|a Acetates
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|a Cyclopentanes
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|a Oxylipins
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Okadaic Acid
|2 NLM
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|a 1W21G5Q4N2
|2 NLM
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|a methyl jasmonate
|2 NLM
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|a Zwiazek, Janusz J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 139(2019) vom: 15. Juni, Seite 540-547
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|g volume:139
|g year:2019
|g day:15
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|g pages:540-547
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|u http://dx.doi.org/10.1016/j.plaphy.2019.04.023
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