The effect of marine bioactive substances (N PRO) and exogenous cytokinins on nitrate reductase activity in Arabidopsis thaliana

被引：50
作者：
Durand, N
Briand, X
Meyer, C [1 ]
机构：
[1] INRA Versailles Grignon, Unite Nutr Azotee Plantes, F-78026 Versailles, France
[2] SECMABIO, F-22260 Pontrieux, France
来源：
PHYSIOLOGIA PLANTARUM | 2003年 / 119卷 / 04期
关键词：
D O I：
10.1046/j.1399-3054.2003.00207.x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
We investigated the effect of exogenous cytokinins and marine bioactive substances containing seaweed extracts (marketed by the ROULLIER Group under the trade name N PRO(TM)) on nitrate reductase activity in Arabidopsis. Cytokinins, applied either directly in the growth medium or as a foliar spray, did not significantly influence nitrate reductase activity in extracts from in vitro grown Arabidopsis plants. Conversely, Arabidopsis grown in the presence of or sprayed with N PRO had increased nitrate reductase activity. This stimulatory effect of N PRO was even higher when the plants were grown on low nitrate concentration, suggesting that these marine bioactive substances may be beneficial for plant growth in adverse nutritional conditions.
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收藏
页码：489 / 493
页数：5
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