Isoperoxidases show differing sensitivity to salicylic acid SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 1 time in Scopus
Title
Isoperoxidases show differing sensitivity to salicylic acid
Author(s)
Jin, ES; Jang, M; Ryoo, K; Lee, MY
Publication Year
2004-04
Abstract
The effects of salicylic acid (SA) on the activity of total peroxidase and the patterns of isoperoxidases of cultured tobacco cells were investigated. The total peroxidase activity of tobacco cells was inhibited by 70% when the cells were treated with 5 mM SA for one week. The peroxidase activity of tobacco cells is declined by 90% in the presence of 30 mM SA. Moreover, the activity of isoperoxidases C3, A1, and A3 decreased dramatically with increasing SA concentration, while, one of the anodic isoperoxidases, A2, was somewhat resistant to SA treatment. When isoperoxidase C3 was isolated, SA inhibited the activity of purified C3 in a concentration-dependent manner. The IC50 of isoperoxidase C3 was approximately 0.45 mM. However, the inhibition of isoperoxidase C3 activity was removed by the addition of Fe2+ ion. The possible mechanism of inhibition of peroxidase by SA is discussed.
ISSN
0254-8704
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5265
Bibliographic Citation
JOURNAL OF ENVIRONMENTAL BIOLOGY, v.25, no.2, pp.135 - 140, 2004
Publisher
TRIVENI ENTERPRISES
Subject
CATALASE ACTIVITY; TOBACCO; PEROXIDASE; BINDING; GENES; RICE; RESISTANCE
Keywords
isoperoxidase pattern; peroxidase activity; salicylic acid
Type
Article
Language
English
Document Type
Article
Publisher
TRIVENI ENTERPRISES
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