Significant relationships among frost tolerance and net photosynthetic rate, water use efficiency and dehydrin accumulation in cold-treated winter oilseed rapes

Bibliographische Detailangaben
Veröffentlicht in:	Journal of plant physiology. - 1979. - 170(2013), 18 vom: 15. Dez., Seite 1600-8
1. Verfasser:	Urban, Milan Oldřich (VerfasserIn)
Weitere Verfasser:	Klíma, Miroslav, Vítámvás, Pavel, Vašek, Jakub, Hilgert-Delgado, Alois Albert, Kučera, Vratislav
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2013
Zugriff auf das übergeordnete Werk:	Journal of plant physiology
Schlagworte:	Journal Article Research Support, Non-U.S. Gov't ABA AP BEN CA CAL COR COR/LEA Ci mehr... Cold acclimation D47, D45, D37 and D35 stand for dehydrin accumulation according to their different molecular masses from protein gel blot analysis (∼97, ∼47, ∼45, ∼37 and ∼35 kD) D97 DHN Dehydrin E FT Frost tolerance GS LAD LT(50) NAV NBT/BCIP NDVI PCA PRI Photosynthesis Pn SDS–PAGE WUE WUEi Winter oilseed rape abscisic acid alkaline phosphatase cold acclimation or cold acclimated cold regulated/late embryogenesis abundant cultivar Benefit cultivar Californium cultivar Cortes cultivar Ladoga cultivar Navajo cultivars cvs dehydrin frost tolerance internal leaf CO(2) concentration intrinsic water use efficiency (Pn/GS) lethal temperature for 50% of plants net photosynthetic rate nitro-blue tetrazolium/5-bromo-4-chloro-3′-indolyphosphate normalized difference vegetation index photochemical reflectance index principal component analysis sodium dodecyl sulphate polyacrylamide gel electrophoresis stomatal conductance transpiration water use efficiency (Pn/E) Plant Proteins Water 059QF0KO0R dehydrin proteins, plant 134711-03-8

Beschreibung
Zusammenfassung:	Copyright © 2013 Elsevier GmbH. All rights reserved. Five winter oilseed rape cultivars (Benefit, Californium, Cortes, Ladoga, Navajo) were subjected to 30 days of cold treatment (4 °C) to examine the effect of cold on acquired frost tolerance (FT), dehydrin (DHN) content, and photosynthesis-related parameters. The main aim of this study was to determine whether there are relationships between FT (expressed as LT50 values) and the other parameters measured in the cultivars. While the cultivar Benefit accumulated two types of DHNs (D45 and D35), the other cultivars accumulated three additional DHNs (D97, D47, and D37). The similar-sized DHNs (D45 and D47) were the most abundant; the others exhibited significantly lower accumulations. The highest correlations were detected between LT50 and DHN accumulation (r=-0.815), intrinsic water use efficiency (WUEi; r=-0.643), net photosynthetic rate (r=-0.628), stomatal conductance (r=0.511), and intracellular/intercellular CO2 concentration (r=0.505). Those cultivars that exhibited higher Pn rate in cold (and further a significant increase in WUEi) had higher levels of DHNs and also higher FT. No significant correlation was observed between LT50 and E, PRI, or NDVI. Overall, we have shown the selected physiological parameters to be able to distinguish different FT cultivars of winter oilseed rape
Beschreibung:	Date Completed 30.05.2014 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE
ISSN:	1618-1328
DOI:	10.1016/j.jplph.2013.07.012