کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2204715 1100813 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phytochrome signaling mechanisms and the control of plant development
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
Phytochrome signaling mechanisms and the control of plant development
چکیده انگلیسی

As they emerge from the ground, seedlings adopt a photosynthetic lifestyle, which is accompanied by dramatic changes in morphology and global alterations in gene expression that optimizes the plant body plan for light capture. Phytochromes are red and far-red photoreceptors that play a major role during photomorphogenesis, a complex developmental program that seedlings initiate when they first encounter light. The earliest phytochrome signaling events after excitation by red light include their rapid translocation from the cytoplasm to subnuclear bodies (photobodies) that contain other proteins involved in photomorphogenesis, including a number of transcription factors and E3 ligases. In the light, phytochromes and negatively acting transcriptional regulators that interact directly with phytochromes are destabilized, whereas positively acting transcriptional regulators are stabilized. Here, we discuss recent advances in our knowledge of the mechanisms linking phytochrome photoactivation in the cytoplasm and transcriptional regulation in the nucleus.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 21, Issue 11, November 2011, Pages 664–671
نویسندگان
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