TY - JOUR
T1 - Biophoton emission due to drought injury in red beans
T2 - Possibility of early detection of drought injury
AU - Ohya, Tomoyuki
AU - Yoshida, Satoshi
AU - Kawabata, Ryuzou
AU - Okabe, Hirotaka
AU - Kai, Shoichi
PY - 2002/7
Y1 - 2002/7
N2 - 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.
AB - 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.
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U2 - 10.1143/jjap.41.4766
DO - 10.1143/jjap.41.4766
M3 - Article
AN - SCOPUS:0036655540
SN - 0021-4922
VL - 41
SP - 4766
EP - 4771
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 7 A
ER -