کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1942736 1052626 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of high temperature stress on the dynamics of antenna size and reducing side heterogeneity of Photosystem II in wheat leaves (Triticum aestivum)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Analysis of high temperature stress on the dynamics of antenna size and reducing side heterogeneity of Photosystem II in wheat leaves (Triticum aestivum)
چکیده انگلیسی
►The effect of high temperature on wheat leaves on the two types of PSII heterogeneity (including α, β, γ and QB-reducing and QB-non-reducing type of heterogeneities) simultaneously has never been explored so extensively till yet. ►Both antenna size and reducing side heterogeneity are greatly affected with increasing temperature. It is concluded that certain environmental stimuli like high temperature stress evoke interconversions of α centers into β and γ centers and the active QB-reducing centers into inactive QB-non-reducing centers. ►The plant adapts to high temperature stress by temporary interconversions of PSII heterogeneity up to temperature of 40 °C. ►The changes in energy flux in response to high temp leads to increased dissipation of energy and untrapped photons which may protect the plant from oxidative stress transiently. ►High temperature stress led to incidental changes in PS II heterogeneity which may be one of the adaptive mechanisms to cope with high temperature stress.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochimica et Biophysica Acta (BBA) - Bioenergetics - Volume 1807, Issue 1, January 2011, Pages 22-29
نویسندگان
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