Nitrate reduction in ramets of a clonal plant Eichhornia crassipes responding to nitrate availability during clonal growth stage

被引：4

作者：

Li, W. G. ^{[1
,3
]}

Wang, J. L. ^{[2
]}

Shen, J. J. ^{[1
]}

Wang, J. B. ^{[1
]}

机构：

[1] Wuhan Univ, Coll Life Sci, Key Lab MOE Plant Dev Biol, Wuhan 430072, Peoples R China

[2] Tsinghua Univ, Dept Biol Sci & Biotechnol, Beijing 100084, Peoples R China

[3] Henan Polytechn Univ, Inst Resource & Environm, Jiaozuo 454003, Peoples R China

来源：

BIOLOGIA PLANTARUM | 2009年 / 53卷 / 01期

基金：

中国国家自然科学基金;

关键词：

inter-connected ramets; nitrate reductase activity; relative growth rate; FRAGARIA-CHILOENSIS; WATER HYACINTH; PHYSIOLOGICAL INTEGRATION; NITROGEN; NUTRIENT; TRANSLOCATION; HERB; FRAGMENTS; N-15;

D O I：

10.1007/s10535-009-0028-9

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Effect of nitrate availability on nitrate reduction was examined in inter-connected ramets of invasive clonal plant Eichhornia crassipes grown with two nitrate supply regimes during different clonal growth stage. Increase of nitrate availability accelerated nitrate reductase activity (NRA) in parent and offspring ramets of E. crassipes, and there was greatly different pattern in inter-connected ramets during clonal growth stage. Leaf NRA was lower in offspring than that in parent ramets in phase 1, while significantly higher leaf NRA in offspring ramets was detected during phase 2. The results indicated NRA in inter-connected ramets of E. crassipes was highly dependent on nitrate availability and growth stage.

引用

页码：171 / 174

页数：4

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