Involvement of nitrate reductase in auxin-induced NO synthesis

被引：12
作者：
Kolbert, Zsuzsanna [1 ]
Erdei, L. [1 ]
机构：
[1] Univ Szeged, Dept Plant Biol, Fac Sci & Informat, Szeged, Hungary
来源：
PLANT SIGNALING & BEHAVIOR | 2008年 / 3卷 / 11期
基金：
匈牙利科学研究基金会;
关键词：
atnoa1; indole-3-butyric acid; nia1; nia2 double mutant; nitric oxide;
D O I：
10.4161/psb.6170
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：
It is well known for a long time, that nitric oxide (NO) functions in variable physiological and developmental processes in plants, however the source of this signaling molecule in the diverse plant responses is very obscure. 1 Although existance of nitric oxide sythase (NOS) in plants is still questionable, LNMMA (N-G-monomethyl-L- arginine)-sensitive NO generation was observed in different plant species. 2,3 In addition, nitrate reductase (NR) is confirmed to have a major role as source of NO. 4,5 This multifaced molecule acts also in auxin-induced lateral root (LR) formation, since exogenous auxin enhanced NO levels in regions of Arabidopsis LR initiatives. Our results pointed out the involvement of nitrate reductase enzyme in auxin-induced NO formation. In this addendum, we speculate on auxin-induced NO production in lateral root primordial formation.
引用
收藏
页码：972 / 973
页数：2
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