Involvement of ARM2 in the uptake of indole-3-butyric acid in rice (Oryza sativa L.) roots

被引：8

作者：

Chhun, T

Taketa, S

Ichii, M

Tsurumi, S ^{[1
]}

机构：

[1] Kobe Univ, Ctr Supports Res & Educ Act, Isotope Div, Nada Ku, Kobe, Hyogo 6578501, Japan

[2] Kagawa Univ, Fac Agr, Miki, Kagawa 7610795, Japan

来源：

PLANT AND CELL PHYSIOLOGY | 2005年 / 46卷 / 07期

关键词：

auxin influx carrier; auxin transport; IAA; IBA; Oryza sativa L; rice root;

D O I：

10.1093/pcp/pci117

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Auxin influx carriers are involved in auxin transport and plant development. Here we show that the mutant of rice (Oryza sativa L. ssp. indica cv 1118) arm(2) is defective in the uptake of the naturally occurring auxin indole-3-butyric acid (IBA). The acropetal and basipetal transport of IBA is reduced in arm2 roots compared with wild type. In contrast, arm2 roots are normal with respect to uptake and transport of indole-3-acetic acid (IAA). Furthermore, arm2 roots are resistant to IBA but respond normally to IAA. The mutant analysis of arm2 indicates the presence of an influx carrier system for IBA in rice roots.

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收藏

页码：1161 / 1164

页数：4

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