کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2048200 1074069 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The PsbS protein controls the macro-organisation of photosystem II complexes in the grana membranes of higher plant chloroplasts
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
The PsbS protein controls the macro-organisation of photosystem II complexes in the grana membranes of higher plant chloroplasts
چکیده انگلیسی

The PsbS protein is a critical component in the regulation of non-photochemical quenching (NPQ) in higher plant photosynthesis. Electron microscopy and image analysis of grana membrane fragments from wild type and mutant Arabidopsis plants showed that the semi-crystalline domains of photosystem II supercomplexes were identical in the presence and absence of PsbS. However, the frequency of the domains containing crystalline arrays was increased in the absence of PsbS. Conversely, there was a complete absence of such arrays in the membranes of plants containing elevated amounts of this protein. It is proposed that PsbS controls the macro-organisation of the grana membrane, providing an explanation of its role in NPQ.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 584, Issue 4, 19 February 2010, Pages 759–764
نویسندگان
, , , , ,