Biologically Closed Electrical Circuits in Venus Flytrap

被引：51

作者：

Volkov, Alexander G. ^{[1
]}

Carrell, Holly ^{[1
]}

Markin, Vladislav S. ^{[2
]}

机构：

[1] Oakwood Univ, Dept Chem & Biochem, Huntsville, AL 35896 USA

[2] Univ Texas SW Med Ctr Dallas, Dept Neurol, Dallas, TX 75390 USA

来源：

PLANT PHYSIOLOGY | 2009年 / 149卷 / 04期

基金：

美国国家科学基金会;

关键词：

DIONAEA-MUSCIPULA ELLIS; TRAP CLOSURE; MECHANISM; RECEPTOR; DYNAMICS; HAIR;

D O I：

10.1104/pp.108.134536

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The Venus flytrap (Dionaea muscipula Ellis) is a marvel of plant electrical, mechanical, and biochemical engineering. The rapid closure of the Venus flytrap upper leaf in about 0.1 s is one of the fastest movements in the plant kingdom. We found earlier that the electrical stimulus between a midrib and a lobe closes the Venus flytrap upper leaf without mechanical stimulation of trigger hairs. The Venus flytrap can accumulate small subthreshold charges and, when the threshold value is reached, the trap closes. Here, we investigated the electrical properties of the upper leaf of the Venus flytrap and proposed the equivalent electrical circuit in agreement with the experimental data.

引用

页码：1661 / 1667

页数：7

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