Biophoton emission due to drought injury in red beans: Possibility of early detection of drought injury

被引：34

作者：

Ohya, T

Yoshida, S

Kawabata, R

Okabe, H

Kai, S

机构：

[1] Kyushu Univ, Fac Engn, Dept Appl Phys, Higashi Ku, Fukuoka 8128581, Japan

[2] Kyushu Univ, Biotron Inst, Higashi Ku, Fukuoka 8128581, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2002年 / 41卷 / 7A期

关键词：

biophoton emission; reactive oxygen species (ROS); drought stress; damage estimation; Vigna angularis;

D O I：

10.1143/JJAP.41.4766

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We study biophoton emission from red beans (Vigna angularis) during germination and seedling stages under drought stress. Strong photon emission is observed at the root apex when the beans are subjected to the dry condition. The spatial distribution of the emission is broader than that of emission due to the application of strong salt stress reported previously [T. Ohya et al.: Jpn. J. Appl. Phys. 39 (2000) 3696]. When they are rewatered, strong photon emission from them is again observed. As their drought damage is weaker, the intensity of the photon emission is weaker. Photon emission from damaged roots indicates their physiological response to external stress, that is, photon emission intensity measurement is useful for detecting physiological changes and evaluating the degrees of such changes before serious damage takes place without any invasion and destruction.

引用

页码：4766 / 4771

页数：6

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