Xylem-borne cytokinins: still in search of a role?

被引：16

作者：

Dodd, IC ^{[1
]}

Beveridge, CA

机构：

[1] Univ Lancaster, Lancaster Environm Ctr, Dept Biol Sci, Lancaster LA1 4YQ, England

[2] Univ Queensland, ARC Ctr Integrat Legume Res, St Lucia, Qld 4072, Australia

来源：

JOURNAL OF EXPERIMENTAL BOTANY | 2006年 / 57卷 / 01期

关键词：

cytokinins; leaf growth; long-distance signalling; nitrogen;

D O I：

10.1093/jxb/erj021

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Leaf expansion and xylem cytokinin concentration ([X-CK]) decrease in response to nitrogen (N) deprivation. Debate continues over cause, effect, and correlation. Supporting studies provide, at best, correlative evidence that [X-CK] controls leaf growth in response to N-deprivation, while dissenting studies indicate that leaf growth responses to N can be independent of changes in X-CK supply to leaves. A model is proposed to evaluate the physiological significance to leaf growth of changes in plant and environment N concentrations, and plant CK concentrations.

引用

页码：1 / 4

页数：4

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