High concentration of zinc toxicity affects the root configuration by regulating the NO/ROS signal.

Zinc (Zn) is an essential trace element in plants and animals, and the right amount of zinc promotes plant growth and increases crop yields;
the early study of horticultural plant breeding research group of Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences, it was found that zinc poisoning affected the root structure by regulating the NO/ROS signal inge, but the detailed physiological and molecular mechanisms were not completely clear.
the research team graduate students Zhang Bing, Sun Liangliang under the guidance of researcher Xu Jin, to the proposed nan mustard as a material, using plant physiology, pharmacology, genetics and molecular biology and other research methods, zinc poisoning to regulate the development of plant root system physiological and molecular mechanisms for in-depth study.
studies show that excess Zn affects the accumulation of root-tip growth hormone by regulating the abundance of PIN4 protein. further studies
found that excess Zn increased the level of root cGMP.
cGMP regulates NO synthesis, which in turn affects THE ACCUMULATION OF ROS and subsequent root-tip PCD.
at the same time, cGMP affects the abundance of the root tip PIN4 protein, thus regulating the accumulation of root-tip growth hormone, and ultimately affecting root system development.
related research in the case of cGMP is involved in Zn tolerance through PIN4-mediated auxin dazzle in root tips, published in Environmental and The Oatany.
research has been supported by the National Natural Science Foundation of China, the reserve talents of middle-aged and young academic leaders in Yunnan Province, and the national key research and development program.
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