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Functional characterization of the Arabidopsis universal stress protein AtUSP with an antifungal activity.

Abstract：

:An antifungal protein, AtUSP protein (At3g53990), was isolated from Arabidopsis thaliana leaves by ion and size chromatography and sequenced by N-terminal sequencing. The AtUSP gene amplified from an Arabidopsis leaf cDNA library was transformed to Escherichia coli to express the AtUSP protein. The recombinant protein inhibited the cell growth of various pathogenic fungal strains. The levels of the AtUSP transcripts were increased by various stresses, including pathogenic infection and salt stress. These results suggest that Arabidopsis AtUSP plays a critical role in the plant tolerance to diverse pathogenic infections. The potent antifungal action, which is a new function of AtUSP, was attributed to fungal reactive oxygen species (ROS) generation and mitochondrial potential alteration.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Park SC,Jung YJ,Lee Y,Kim IR,Seol MA,Kim EJ,Jang MK,Lee JR

doi

10.1016/j.bbrc.2017.03.126

subject

Has Abstract

pub_date

2017-05-13 00:00:00

pages

923-929

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(17)30594-6

journal_volume

486

pub_type

杂志文章

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