Seed dormancy at molecular level

The seed containing an embryo, a miniature of new plant, structurally and physiologically equipped to sustain the growing seedling until it establish as new plant. Some traits are acquired during evolution for capacity to survive under unfavourable condition. One of such trait is ‘dormancy’, an intrinsic/extrinsic block to germination. The ABA and GA are involved in induction and release of dormancy and it also showed the involvement and complex interaction with other plant hormones such as ethylene, brassinosteriods and reactive oxygen species.