کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2055975 1075793 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nicotiana tabacum actin-depolymerizing factor 2 is involved in actin-driven, auxin-dependent patterning
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Nicotiana tabacum actin-depolymerizing factor 2 is involved in actin-driven, auxin-dependent patterning
چکیده انگلیسی

Polar transport of auxin has been identified as a central element of pattern formation. To address the underlying cellular mechanisms, we use the tobacco cell line (Nicotiana tabacum L. cv. Bright Yellow 2; BY-2) as model. We showed previously that cell divisions within a cell file are synchronized by polar auxin flow, linked to the organization of actin filaments (AF) which, in turn, is modified via actin-binding proteins (ABPs). From a preparatory study for disturbed division synchrony in cell lines overexpressing different ABPs, we identified the actin depolymerizing factor 2 (ADF2). A cell line overexpressing GFP-NtADF2 was specifically affected in division synchrony. The cell division pattern could be rescued by addition of Phosphatidylinositol 4,5-bisphosphate (PIP2) or by phalloidin. These observations allow to draw first conclusions on the pathway linking auxin signalling via actin reorganization to synchronized cell division placing the regulation of cortical actin turnover by ADF2 into the focus.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Plant Physiology - Volume 170, Issue 12, 15 August 2013, Pages 1057–1066
نویسندگان
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