Thermal injury and ozone stress affect soybean lipoxygenases expression
- 14 September 1992
- journal article
- Published by Wiley in FEBS Letters
- Vol. 309 (3) , 225-230
- https://doi.org/10.1016/0014-5793(92)80778-f
Abstract
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.Keywords
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