Pollen–pistil interaction is a basic process in the reproductive biology of flowering plants and has been subject intense fundamental research that pronounced practical value. The phytohormones ethylene (ET) cytokinin (CK) together with other hormones such as auxin, gibberellin (GA), jasmonic acid (JA), abscisic (ABA), brassinosteroids (BRs) influence different stages plant development growth. ...

The phytohormone gibberellin (GA) is critical for anther development. RGA, a member of the DELLA family proteins that are central GA signalling repressors, key regulator male fertility in plants. However, downstream genes GA–RGA-mediated development remain to be characterised. We identified RGA Target 1 (RGAT1), novel Arabidopsis gene, functions as an important RGA-regulated target pollen RGAT1...