LOX — Lactuca sativa

Summary

LsLOX, encoded by the garden lettuce gene LSAT_V11C600317420 on chromosome 6, is a lipoxygenase family protein containing the characteristic LipOase and PLAT/LH2 domains. The enzyme exhibits linoleate 13S-lipoxygenase activity and is associated with oxylipin and jasmonic acid biosynthesis, green leaf volatile production, and responses to herbivores, insects, ozone, and high light intensity. It has been linked to photoperiod-sensitive flowering, anther development and dehiscence, seed yield, photosynthetic rate, nitrate content and transport, root thickness, and low temperature stress response. The gene product localises to chloroplast thylakoids, stromules, the apoplast, and stress granules. Studies of related genes in other species connect the family to defence against herbivory and fungal pathogens, drought resistance, and regulation of plant growth and development.