Pollen-Pistil interactions : Biochemical and Molecular Insights-A Review

Pollen-stigma interaction plays crucial role not only for successful fertilization but also for prevention of inappropriate fertilization. This interaction acts as the very first check point in selection or rejection of pollen grains. Pollen-stigma interaction not only represent a good example of cell-cell communication but the responses coming from these interactions are fast. During the interaction, many genes are up-regulated or down-regulated in pollen and stigma and the resultant molecules facilitate this interaction. In this review, molecular and biochemical aspects of pollen-stigma interaction are discussed.