A new mechanism for the dormant of ethylene-regulated seeds was found in plants of the Chinese Academy of Sciences

previous studies have shown that seed sleep is regulated by a variety of plant hormones, and in addition to the widely reported shedding acids and erythromycin, ethylene also plays an important role in seed sleep regulation, but little is known about its molecular mechanisms. In this study, researchers used photon cloning techniques to confirm that a seed dormant mutant, rdo3, was caused by a loss of function of the ethylene-induced ETR1 mutation. In this mutant, the expression of ethylene response factor ERF12 is increased, and the expression protein ERF12 can bind to the promoter of the key factor of seed sleep and inhibit its expression by recruiting inhibitors, which in turn negatively regulates seed sleep.
sprouting refers to the phenomenon of crop seeds germination on mother plants induced by wet weather before harvest, which seriously affects crop yield and processed food quality, and is a worldwide disaster. An effective way to prevent spike germination is to keep the seeds in moderate sleep when they mature, so that neither the spike germination will occur nor affect the field germination rate due to too deep sleep. (Source: Science Network Ding Jia)
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