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240325s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2024.154225
|2 doi
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|a pubmed25n1233.xml
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|a (NLM)38522214
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|a (PII)S0176-1617(24)00056-7
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Ladeynova, Maria
|e verfasserin
|4 aut
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|a pH change accompanying long-distance electrical signal controls systemic jasmonate biosynthesis
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|c 2024
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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 22.04.2024
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|a Date Revised 22.04.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier GmbH. All rights reserved.
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|a Local damaging stimuli cause a rapid increase in the content of the defense phytohormone jasmonic acid (JA) and its biologically active derivative jasmonoyl-L-isoleucine (JA-Ile) in undamaged distal tissues. The increase in JA and JA-Ile levels was coincident with a rapid decrease in the levels of the precursor 12-oxo-phytodienoic acid (OPDA). The propagation of a stimulus-induced long-distance electrical signal, variation potential (VP), which is accompanied by intracellular changes in pH and Ca2+ levels, preceded systemic changes in jasmonate content. The decrease in pH during VP, mediated by transient inactivation of the plasma membrane H+-ATPase, induced the conversion of OPDA to JA, probably by regulating the availability of the OPDA substrate to JA biosynthetic enzymes. The regulation of systemic synthesis of JA and JA-Ile by the Ca2+ wave accompanying VP most likely occurs by the same mechanism of pH-induced conversion of OPDA to JA due to Ca2+-mediated decrease in pH as a result of H+-ATPase inactivation. Thus, the transient increase in intracellular Ca2+ levels and the transient decrease in intracellular pH are most likely the key mechanisms of VP-mediated regulation of jasmonate production in systemic tissues upon local stimulation
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|a Journal Article
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|a Calcium
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|a Electrical signal
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|a Jasmonate
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|a Variation potential
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|a Wheat (Triticum aestivum L.)
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|a pH
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|a jasmonic acid
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|a 6RI5N05OWW
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|a jasmonoyl-isoleucine
|2 NLM
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|a 2-(2'-pyridyldithio)benzyldiazoacetate
|2 NLM
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|a 63681-84-5
|2 NLM
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|a Oxylipins
|2 NLM
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|a Cyclopentanes
|2 NLM
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|a Isoleucine
|2 NLM
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|a 04Y7590D77
|2 NLM
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|a Proton-Translocating ATPases
|2 NLM
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|a EC 3.6.3.14
|2 NLM
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|a Diazonium Compounds
|2 NLM
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|a Pyridines
|2 NLM
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1 |
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|a Kuznetsova, Darya
|e verfasserin
|4 aut
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|a Pecherina, Anna
|e verfasserin
|4 aut
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|a Vodeneev, Vladimir
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 296(2024) vom: 01. Mai, Seite 154225
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnas
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| 773 |
1 |
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|g volume:296
|g year:2024
|g day:01
|g month:05
|g pages:154225
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|u http://dx.doi.org/10.1016/j.jplph.2024.154225
|3 Volltext
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