Allelochemical effects on net nitrate uptake and plasma membrane H+-ATPase activity in maize seedlings

被引：48

作者：

Abenavoli, M. R. ^{[1
]}

Lupini, A. ^{[1
]}

Oliva, S. ^{[1
]}

Sorgona, A. ^{[1
]}

机构：

[1] Univ Mediterranea Reggio Calabria, Fac Agr, Dip BIOMAA, I-89124 Reggio Di Calabria, Italy

来源：

BIOLOGIA PLANTARUM | 2010年 / 54卷 / 01期

关键词：

caffeic acid; ferulic acid; p-coumaric acid; trans-cinnamic acid; umbelliferone; ION UPTAKE; ARABIDOPSIS-THALIANA; CUCUMBER SEEDLINGS; ROOT ELONGATION; CINNAMIC ACID; FERULIC ACID; INHIBITION; GROWTH; GERMINATION; COUMARIN;

D O I：

10.1007/s10535-010-0024-0

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Seven-day-old maize seedlings grown in a nitrogen-free hydroponic culture were exposed for 48 h to 0, 100 and 300 mu M trans-cinnamic, p-coumaric, ferulic, caffeic acids, umbelliferone and 200 mu M KNO3. Net nitrate uptake was affected by trans-cinnamic, ferulic and p-coumaric acids in a concentration-dependent manner, and trans-cinnamic acid appeared to be the strongest inhibitor. Conversely, at low concentrations, caffeic acid stimulated net nitrate uptake while umbelliferone did not influence it. After 24 h of treatment, plasma membrane H+-ATPase activity significantly decreased in a concentration-dependent manner in response to trans-cinnamic, ferulic and p-coumaric acids, while umbelliferone and caffeic acid had no effect on H+-ATPase activity.

引用

页码：149 / 153

页数：5

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