Hu Ying, Wang Huichun, Zhou Biyao, Li Zhengke, Jia Huiping, Deji Pengmao, Liu Nian, Wei Jingjing
College of Life Sciences, Qinghai Normal University, Xi'ning 810008, China.
Key Lab. of Medicinal Animal and Plant Resources on the Qinghai-Tibet Plateau, Xi'ning 810008, China.
Open Life Sci. 2023 Apr 11;18(1):20220544. doi: 10.1515/biol-2022-0544. eCollection 2023.
Cadmium (Cd) pollution is a global environmental problem. It is of great significance to find a kind of pasture that can grow normally in a cadmium environment, especially in the Tibetan Plateau. We studied the fruit germination and fruit growth of S.L. Chen and (Nevski), native plants of the Tibetan Plateau, in different cadmium environments. The results showed that with increased cadmium stress, the fruit germination rate, final germination rate, fruit-vigor, average germination time, and germination-speed index for the two grass species gradually decreased, and the 50% germination time for the seed gradually increased. Root length, biomass, and the number of leaves decreased in both species. We quantified the fruit germination and growth of plants in the cadmium environment and found that S.L. Chen had better fruit germination and fruit growth, and it had the development potential of cadmium pollution control.
镉（Cd）污染是一个全球性的环境问题。找到一种能在镉环境中正常生长的牧草具有重要意义，尤其是在青藏高原地区。我们研究了青藏高原本土植物矮嵩草（ Kobresia humilis (C. A. Mey.) Serg.）和线叶嵩草（ Kobresia capillifolia (Decne.) C. B. Clarke）在不同镉环境下的果实萌发和果实生长情况。结果表明，随着镉胁迫的增加，两种嵩草的果实萌发率、最终萌发率、果实活力、平均萌发时间和萌发速度指数逐渐降低，种子的50%萌发时间逐渐增加。两种嵩草的根长、生物量和叶片数量均减少。我们对镉环境中植物的果实萌发和生长进行了量化，发现矮嵩草具有更好的果实萌发和果实生长情况，具有控制镉污染的发展潜力。
