Mulberry moracins: Scavengers of UV stress-generated free radicals

被引：40

作者：

Sharma, R

Sharma, A

Shono, T

Takasugi, M

Shirata, A

Fujimura, T

Machii, H

机构：

[1] NISES, Tsukuba, Ibaraki 3058634, Japan

[2] Univ Tsukuba, Inst Agr & Forest Engn, Tsukuba, Ibaraki 3058537, Japan

[3] Hokkaido Univ, Dept Global Environm Sci, Sapporo, Hokkaido 0608589, Japan

来源：

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY | 2001年 / 65卷 / 06期

关键词：

free radical scavenger; moracins; mulberry; phytoalexins; UV stress;

D O I：

10.1271/bbb.65.1402

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：

Mulberry leaves treated with UV-C were found to accumulate three different phytoalexins, moracin C, moracin N, and chalcomoracin, The increased level of malondialdehyde in UV-treated leaves along with moracins suggested their role as a free-radical scavenger in stressed plants. All the three moracins induced under UV stress were capable of scavenging the superoxide anion generated by the xanthine-xanthine oxidase system. Also, moracins were capable of inhibiting lipid peroxidation, which strongly indicates their role as a scavenger.

引用

页码：1402 / 1405

页数：4

共 18 条

[1] Induction of phytoalexin (resveratrol) synthesis in grapevine leaves treated with aluminum chloride (AlCl3) [J].