An Overview of Nitrogen Metabolism in Flue-cured Tobacco
Nitrogen metabolism is one of the most important metabolic pathways in flue-cured tobacco,including nitrogen absorption,assimilation and distribution.Nitrogen is a constituent of proteins,nucleic acids,chlorophyll,coenzymes,vitamins,nicotine,and smoke aroma substances,and plays a key role in the yield and quality of tobacco leaves.However,it is difficult to control the content of nitrogen-containing compounds in an appropriate range.For this reason,it is particularly important to understand the transport and accumulation mechanism of nitrogen-contain-ing compounds in flue-cured tobacco.This study reviews the research progress of nitrogen absorption and assimila-tion of flue-cured tobacco and the transportation and accumulation of nitrogen-containing compounds in flue-cured tobacco at home and abroad,focusing on the transportation and accumulation of nitrogen-containing compounds in flue-cured tobacco.This provides valuable clues for how to combine the current research status to promote the re-search of flue-cured tobacco nitrogenous compounds,and at the same time prospect the future research direction of flue-cured tobacco nitrogen metabolism.
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