CHINA Chinese scientists discover land plants use key protein to sense nitrate

CHINA

Chinese scientists discover land plants use key protein to sense nitrate

Xinhua

21:48, September 25, 2022

(Photo: VCG)

BEIJING, Sept. 25 (Xinhua) -- A Chinese research team, alongside foreign counterparts, recently discovered that a key protein acts as a primary nitrate sensor for land plants, according to a study published in the journal Nature.

Nitrate is an essential nutrient and signaling molecule for plant growth. Plants sense intracellular nitrate to adjust their metabolic and growth responses. In agricultural production, nitrate is an important factor that increases crop yields.

Researchers from China's Northwest A&F University, alongside researchers from Harvard University and the University of Tokyo, found that the protein NLP7 serves as both nitrate signal switch and nitrate receptor.

They also developed fluorescent nitrate receptors to observe nitrate levels and changes in plants at the cellular level.

According to the Northwest A&F University, the study illustrates the regulatory mechanism that photoautotrophic plants use to activate the plant signal transduction network and growth response by sensing nitrate.

The study will provide new insights to help improve nitrogen use efficiency in crops, reduce fertilizer use and energy consumption, mitigate climate change caused by greenhouse gas emissions, and support sustainable agricultural development.

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