Cysteine proteases in phytopathogenic bacteria: identification of plant targets and activation of innate immunity.

Abstract:

:Phytopathogenic bacteria use the type-III secretion system (TTSS) to inject effector proteins into plant cells, presumably to colonize their hosts. The function of these proteins inside plant cells has remained a mystery for years. The recent discovery that the effectors XopD, AvrXv4, AvrPphB, and AvrRpt2 have cysteine protease functions reveals that the proteolysis of host substrates is an important strategy employed by pathogens to alter plant physiology. Moreover, the characterization of these proteases and their targets provides new insight to mechanisms of bacterial virulence and the activation of plant immunity.

journal_name

Curr Opin Plant Biol

authors

Hotson A,Mudgett MB

doi

10.1016/j.pbi.2004.05.003

subject

Has Abstract

pub_date

2004-08-01 00:00:00

pages

384-90

issue

4

eissn

1369-5266

issn

1879-0356

pii

S136952660400069X

journal_volume

7

pub_type

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