Root gravitropism in response to a signal originating outside of the cap

被引：72

作者：

Wolverton, C ^{[1
]}

Mullen, JL ^{[1
]}

Ishikawa, H ^{[1
]}

Evans, ML ^{[1
]}

机构：

[1] Ohio State Univ, Dept Plant Biol, Columbus, OH 43210 USA

来源：

PLANTA | 2002年 / 215卷 / 01期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

gravitropism; gravity sensing; Zea (gravitropism);

D O I：

10.1007/s00425-001-0726-9

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

We have developed image analysis software linked to a rotating stage, allowing constraint of any user-selected region of a root at a prescribed angle during root gravitropism, This device allows the cap of a graviresponding root to reach vertical while maintaining a selected region within the elongation zone at a gravistimulated angle. Under these conditions gravitropic curvature of roots of Zea mays L. continues long after the root cap reaches vertical, indicating that a signal from outside of the cap can contribute to the curvature response.

引用

页码：153 / 157

页数：5

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