干旱胁迫对内生真菌侵染的多年生黑麦草中多胺和洛替米星B的影响。
Effects of Drought Stress on Peramine and Lolitrem B in -Endophyte-Infected Perennial Ryegrass.
作者信息
Lin Weihu, Gao Chengfen, Wang Jianjun, Xu Wenbo, Wang Meining, Li Miaomiao, Ma Bihua, Tian Pei
机构信息
State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China.
Institute of Rural Development, Gansu Provincial Academy of Social Sciences, Lanzhou 730071, China.
出版信息
Life (Basel). 2022 Aug 8;12(8):1207. doi: 10.3390/life12081207.
Perennial ryegrass (Lolium perenne) infected by Epichloë endophytes contains alkaloids that are responsible for toxicosis in many countries. Drought may greatly affect the alkaloids contents of symbionts. The E+ perennial ryegrass was grown in pots with different soil moisture conditions (15%, 30%, 45% and 60% relative saturation moisture content, RSMC) for four months in a greenhouse of Lanzhou University, and then, the aboveground tissues were collected. The levels of peramine and lolitrem B in all plant samples were determined. The results showed that the drought stress significantly (p < 0.05) increased the peramine concentrations of perennial ryegrass but did not affect the lolitrem B concentrations. In addition, the drought stress significantly (p < 0.05) reduced the plant height and dry matter of perennial ryegrass. In conclusion, drought stress affects the peramine concentration in the perennial ryegrass−endophyte symbiont but may not affect the lolitrem B concentration.
被内生真菌Epichloë感染的多年生黑麦草（Lolium perenne）含有生物碱，在许多国家会导致中毒。干旱可能会极大地影响共生体中生物碱的含量。在兰州大学的温室中，将携带内生真菌的多年生黑麦草种植在不同土壤湿度条件（相对饱和含水量分别为15%、30%、45%和60%，即RSMC）的花盆中四个月，然后收集地上组织。测定了所有植物样品中麦角酰胺和洛利特rem B的含量。结果表明，干旱胁迫显著（p<0.05）提高了多年生黑麦草中麦角酰胺的浓度，但对洛利特rem B的浓度没有影响。此外，干旱胁迫显著（p<0.05）降低了多年生黑麦草的株高和干物质。总之，干旱胁迫会影响多年生黑麦草-内生真菌共生体中的麦角酰胺浓度，但可能不会影响洛利特rem B的浓度。
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