Mitochondrial alternative cyanide-resistant oxidase is involved in an increase of heat stress tolerance in spring wheat

Bibliographische Detailangaben
Veröffentlicht in:	Journal of plant physiology. - 1979. - 231(2018) vom: 07. Dez., Seite 310-317
1. Verfasser:	Borovik, Olga A (VerfasserIn)
Weitere Verfasser:	Grabelnych, Olga I
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2018
Zugriff auf das übergeordnete Werk:	Journal of plant physiology
Schlagworte:	Journal Article Alternative cyanide-resistant oxidase Heat shock proteins Heat stress tolerance Respiration Wheat Oxidoreductases EC 1.- duroquinol oxidase

Beschreibung
Zusammenfassung:	Copyright © 2018 Elsevier GmbH. All rights reserved. The aim of this study was to determine the influence of different heat treatments on the alternative cyanide-resistant oxidase (AOX) capacity and establish a relation between the heat stress tolerance of spring wheat (Triticum aestivum L.), content of water-soluble carbohydrates in leaves and the alternative respiratory pathway (AP) capacity. We identified a positive relation between these studied parameters. Heat exposure at 39 °C for 24 h increased the heat stress tolerance of seedlings, content of water-soluble carbohydrates and AOX capacity, and the AOX capacity was also high after the subsequent influence of heat shock (50 °C for 3 h). The increased AOX capacity correlated with an increased level of water-soluble carbohydrates in leaves. The content of the AOX protein increased after heat exposure at 39 °C (for 3 h and 24 h) and after the subsequent influence of heat shock (50 °C for 1 and 3 h) at 39 °C for 24 h. We also detected that the content of AOX protein isoforms depends on the duration and intensity of heat treatment. It was concluded that AOX plays an important role in the acclimation of plants to high temperatures
Beschreibung:	Date Completed 17.01.2019 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE
ISSN:	1618-1328
DOI:	10.1016/j.jplph.2018.10.007