Effects of drought stress memory on the accumulation of stress-protective compounds in naturally grown pine and spruce

Bibliographische Detailangaben
Veröffentlicht in:	Plant physiology and biochemistry : PPB. - 1991. - 200(2023) vom: 05. Juli, Seite 107761
1. Verfasser:	Kartashov, Alexander V (VerfasserIn)
Weitere Verfasser:	Zlobin, Ilya E, Pashkovskiy, Pavel P, Pojidaeva, Elena S, Ivanov, Yury V, Ivanova, Alexandra I, Ivanov, Valery P, Marchenko, Sergey I, Nartov, Dmitry I, Kuznetsov, Vladimir V
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2023
Zugriff auf das übergeordnete Werk:	Plant physiology and biochemistry : PPB
Schlagworte:	Journal Article Dehydrins Heat shock proteins Picea abies Pinus sylvestris Stress memory Temperate forest Water deficit

Beschreibung
Zusammenfassung:	Copyright © 2023 Elsevier Masson SAS. All rights reserved. Forest trees are subjected to multiple stressors during their long lifetime and therefore require effective and finely regulated stress-protective systems. Stressors can induce protective systems either directly or with the involvement of stress memory mechanisms. Stress memory has only begun to be uncovered in model plants and is unexplored in coniferous species. Therefore, we studied the possible role of stress memory in the regulation of the accumulation of stress-protective compounds (heat shock proteins, dehydrins, proline) in the needles of naturally grown Scots pine and Norway spruce trees subjected to the subsequent action of long-term (multiyear) and short-term (seasonal) water shortages. Although the water deficit was relatively mild, it significantly influenced the pattern of expression of stress memory-related heat shock factor (HSF) and SWI/SNF genes, indicating the formation of stress memory in both species. In spruce, dehydrin accumulation was increased by water shortage in a manner compatible with Type II stress memory. The accumulation of HSP40 in spruce needles was positively influenced by long-term water shortage, but this increase was unlikely to be of biological importance due to the concomitant decrease in HSP70, HSP90 and HSP101 accumulation. Finally, proline accumulation was negatively influenced by short-term water deficit in spruce. In pine, no one protective compound accumulated in response to water stress. Taken together, the results indicate that the accumulation of stress-protective compounds was generally independent of stress memory effects both in pine and in spruce
Beschreibung:	Date Completed 12.06.2023 Date Revised 12.06.2023 published: Print-Electronic Citation Status MEDLINE
ISSN:	1873-2690
DOI:	10.1016/j.plaphy.2023.107761