کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2049786 1074143 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phosphorylation of the Arabidopsis AtrbohF NADPH oxidase by OST1 protein kinase
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Phosphorylation of the Arabidopsis AtrbohF NADPH oxidase by OST1 protein kinase
چکیده انگلیسی

The plant hormone abscisic acid (ABA) triggers production of reactive oxygen species (ROS) in guard cells via the AtrbohD and AtrbohF NADPH oxidases, leading to stomatal closure. The ABA-activated SnRK2 protein kinase open stomata 1 (OST1) (SRK2E/SnRK2.6) acts upstream of ROS in guard cell ABA signaling. Here, we report that OST1 phosphorylates Ser13 and Ser174 on AtrbohF. In addition, substitution of Ser174 to Ala results in a ∼40% reduction in the phosphorylation of AtrbohF by OST1. We also show that OST1 physically interacts with AtrbohF. These results provide biochemical evidence suggesting that OST1 regulates AtrbohF activity.Structured summaryMINT-7260179, MINT-7260147, MINT-7260165: OST1 (uniprotkb:Q940H6) phosphorylates (MI:0217) ATRBOHF (uniprotkb:O48538) by protein kinase assay (MI:0424)MINT-7260208: OST1 (uniprotkb:Q940H6) and ATRBOHF (uniprotkb:O48538) physically interact (MI:0915) by bimolecular fluorescence complementation (MI:0809)

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 583, Issue 18, 17 September 2009, Pages 2982–2986
نویسندگان
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