Evidence suggesting protein tyrosine phosphorylation in plants depends on the developmental conditions

被引：49

作者：

Barizza, E ^{[1
]}

Lo Schiavo, F ^{[1
]}

Terzi, M ^{[1
]}

Filippini, F ^{[1
]}

机构：

[1] Dipartimento Biol, I-35131 Padua, Italy

来源：

FEBS LETTERS | 1999年 / 447卷 / 2-3期

关键词：

anti-phosphotyrosine; plant development; plant phosphoprotein; somatic embryogenesis; tyrosine phosphorylation;

D O I：

10.1016/S0014-5793(99)00272-0

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Protein tyrosine phosphorylation plays a central role in a variety of signal transduction pathways regulating animal cell growth and differentiation, but its relevance and role in plants are controversial and still largely unknown. We report here that a large number of proteins from all plant subcellular fractions are recognized by recombinant, highly specific, anti-phosphotyrosine antibodies. Protein tyrosine phosphorylation patterns vary among different adult plant tissues or somatic embryo stages and somatic embryogenesis is blocked in vivo by a cell-permeable tyrosyl-phosphorylation inhibitor, demonstrating the involvement of protein tyrosine phosphorylation in control of specific steps in plant development. (C) 1999 Federation of European Biochemical Societies.

引用

页码：191 / 194

页数：4

共 19 条

[1]

ALI N, 1994, J BIOL CHEM, V269, P31626

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