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Atnoa1 mutant Arabidopsis plants induce compensation mechanisms to reduce the negative effects of the mutation
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SYSNO ASEP 0367373 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Atnoa1 mutant Arabidopsis plants induce compensation mechanisms to reduce the negative effects of the mutation Author(s) Majlath, I. (HU)
Szalai, G. (HU)
Papp, I. (HU)
Vaňková, Radomíra (UEB-Q) RID, ORCID
Janda, T. (HU)Source Title Journal of Plant Physiology. - : Elsevier - ISSN 0176-1617
Roč. 168, č. 11 (2011), s. 1184-1190Number of pages 7 s. Language eng - English Country PT - Portugal Keywords Atnoa1 ; Freezing ; Polyamines Subject RIV EB - Genetics ; Molecular Biology CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000293149100005 DOI 10.1016/j.jplph.2011.01.021 Annotation Alterations in temperature adaptation processes and changes in the content of stress-related compounds, polyamines and salicylic acid were evaluated in Atnoa1 (NO-associated 1) Arabidopsis mutant. The F,IF,T, chlorophyll-a fluorescence induction parameter and the actual quantum yield were significantly lower in the Atnoa1 mutant than in the wild-type. In the wild-type Col-0, the fastest increase in the non-photochemical quenching (NPQ) occurred in plants pre-treated at low temperature (4 degrees C), while the slowest was in those adapted to 30 degrees C. The NPQ showed not only a substantially increased level in the light-adapted state, but also more rapid light induction after the dark-adapted state in the Atnoa1 mutant than in the wild-type. The results of freezing tests indicated that both the wild-type and the mutant had better freezing tolerance after cold hardening, since no significant differences were found between the genotypes. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2012
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