Foxtail Millet Protein Confers Tolerance to Low Nitrogen Stress in Rice
November 9, 2022| |
Farmers worldwide have been applying nitrogen fertilizers to boost crop yields, but excessive use could have an impact on the environment. Thus, improving crop nitrogen efficiency is vital for yield increase and environmental protection.
Foxtail millet (Setaria italica L.) is one of the model crops used to study abiotic stress resistance in crops. However, the molecular mechanisms involved in nitrogen use efficiency in foxtail millet remain elusive. This led a team of researchers to evaluate the role of SiMYB30, a transcription factor from foxtail millet, in controlling nitrogen efficiency in transgenic rice.
Results showed that rice overexpressing SiMYB30 significantly increased shoot fresh weight, shoot dry weight, and plant height at the seedling stage under low nitrogen treatment indoors. Moreover, overexpression of SiMYB30 in field experiments significantly increased grain nitrogen content and grain yield per plant in rice. SiMYB30 also activated the expression of nitrogen uptake-related genes.
The findings highlight the role of SiMYB30 in improving the nitrogen use efficiency of crops.
Read the preprint article in SSRN.
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