Chinese scientists have found the mechanism of "plant killer" chamomile
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Last Update: 2021-03-04
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Source: Internet
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Author: User
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, Jan. 27 (Xinhua) -- A study conducted by the China Agriculture
Shenzhen Agricultural Genomics Research Institute has been published online in the academic journal Nature Communications. This study reveals the environmental adaptive evolution and rapid growth molecular mechanism of chamomile from many angles, which provides a theoretical basis for the prevention and control of this important alien invasive plant.
, native to Central and South America and then invaded Southeast Asia, has been listed as one of the world's most harmful invasive alien species, and is the first invasive alien species in China. The plant, known as a "one-minute-a-mile weed," grows fast enough to climb, inhibit or kill other plants, destroying ecosystems. Chamomile has spread to Guangdong, Guangxi, Yunnan, Hainan and other places in China.
A team of scientists including Wan Fanghao, Qian Wanqiang and Wei Wei constructed a high-quality chromomal-level reference genome of chamomile, using comparative genomics, metabolomics, transcriptomics and soil macrogenomics techniques to reveal the molecular mechanisms of its rapid growth and environmental adaptation in terms of photosynthmatics, chemically sensing substances, and the microbial effects of soil.
study found that chamomile can use different photogasing pathways during the day and night to fix carbon dioxide, but also through its own chemically sensing substances effectively rich nitrogen fixation bacteria and ammonia bacteria, accelerate the nutrient cycle of the root soil, for its rapid growth to provide adequate nutrients.
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