An asparagine synthetase gene ASN1 regulates rice root development
The root system is an important organ for plants to absorb water and soil nutrients. The development of roots was influenced by phytohormone and environmental factors. In this research, the root phenotype of the asparagine synthesis mutant asn1 was analyzed and the histological analysis showed that the shortened root phenotype was caused by the changed rate of cell proliferation in the root apical meristem. Transcriptome analysis revealed that the phytohormone signaling was strongly influenced. Further measurement of the phytohorme in the root revealed that the jasmonic acids was changed most in asn1. And the exogenous jasmonic acid could rescue the mutant phenotype. This finding filled the gap between ASN1 and root architecture. In summary, ASN1 regulation of root length through the change of jasmonic acid concentration and regulation.