Back to Search Start Over

Low temperature acclimation to chilling tolerance in rice roots

Authors :
Hisashi Kato-Noguchi
Source :
Plant Growth Regulation. 51:171-175
Publication Year :
2007
Publisher :
Springer Science and Business Media LLC, 2007.

Abstract

Rice seedlings (Oryza sativa L.) were subjected to low temperature pretreatment (LT-PT; 10°C) for various length of time (1, 2, 4, 6, 12, 18, 24 h) followed by a 48-h chilling temperature stress (2°C). Chilling temperature tolerance of rice roots was improved with increasing duration of LT-PT, but LT-PT longer than 12 h gave no additional improvement. Alcohol dehydrogenase activity and ethanol concentration in the roots were increased with increasing duration of LT-PT up to 12 h. Chilling tolerance was also improved by exogenously applied ethanol. These results suggest that LT-PT may increase chilling tolerance in rice roots owing to ethanol accumulation in the roots and LT-PT acclimation to chilling temperature may occur within 12 h.

Details

ISSN :
15735087 and 01676903
Volume :
51
Database :
OpenAIRE
Journal :
Plant Growth Regulation
Accession number :
edsair.doi...........81c4b5c0eecf65c5869a7bd683d9c063
Full Text :
https://doi.org/10.1007/s10725-006-9159-6