Thermal injury and ozone stress affect soybean lipoxygenases expression.
The effects of thermal injury (cold and heat shock) and ozone treatment on lipoxygenases 1 (LOX-1) and 2 (LOX-2) of soybean seedlings have been investigated. Cold stress led to a decrease of the specific activities of both isoenzymes, attributable at least in part to a down-regulation of gene expression at the translational level. Both heat shock and ozone treatment enhanced lipoxygenases-specific activities, acting at the level of transcription of the genes. It is proposed that LOX-1 and LOX-2 are involved in the thermotolerance of soybeans and in the precocious aging induced by ozone.
Maccarrone
M
M
Department of Bio-Organic Chemistry, Utrecht University, The Netherlands.
Veldink
G A
GA
Vliegenthart
J F
JF
D001483:Base Sequence; D004247:DNA; D008084:Lipoxygenase / Q000378:metabolism*; D008969:Molecular Sequence Data; D010126:Ozone / Q000494:pharmacology*; D013025:Glycine max; D013696:Temperature
D010126:Ozone; D004247:DNA; D008084:Lipoxygenase