Arbuscular mycorrhizal(AM)fungi distribute widely in natural habits and play a variety of ecological functions.In order to test the physiological response to salt stress mediated by different AM fungi,Viola prionantha...Arbuscular mycorrhizal(AM)fungi distribute widely in natural habits and play a variety of ecological functions.In order to test the physiological response to salt stress mediated by different AM fungi,Viola prionantha was selected as the host,the dominant AM fungus in the rhizosphere of V.philippica growing in Songnen saline-alkali grassland,Rhizophagus irregularis,and their mixtures were used as inoculants,and NaCl stress was applied after the roots were colonized.The results showed that V.philippica could be colonized by AM fungi in the field and the colonization rate ranged from 73.33%to 96.67%,and Claroideoglomus etunicatum was identified as the dominant AM fungi species in the rhizosphere of V.philippica by morphology combined with sequencing for AM fungal AML1/AML2 target.Inoculation with both the species resulted in the formation of mycorrhizal symbiosis(the colonization rate was more than 70%)and AM fungi significantly enhanced plants’tolerance to salt stress of varying magnitude.Higher activity of antioxidant enzymes and augmented levels of proline and other osmoregulators were observed in AM plants.The content of MDA in CK was higher than that in the inoculations with the stress of 100,200,and 250 mM.All indices except soluble protein content and MDA content were significantly correlated with AM fungal colonization indices.The analysis for different AM fungal effects showed that the mixtures and R.irregularis worked even better than C.etunicatum.These results will provide theoretical support for the exploration and screening of salt-tolerant AM fungi species and also for the application of AM-ornamental plants in saline-alkali urban greening.展开更多
我国的提琴教学作为独立学科,最早相继设立于上世纪50年代的上海音乐学院、中央音乐学院与沈阳音乐学院。1987年,曾在上海音乐学院学习的萧红梅为中国人获得了第一个中提琴国际金奖;2000年,中国第一个也是唯一的中提琴教研室正式在中央...我国的提琴教学作为独立学科,最早相继设立于上世纪50年代的上海音乐学院、中央音乐学院与沈阳音乐学院。1987年,曾在上海音乐学院学习的萧红梅为中国人获得了第一个中提琴国际金奖;2000年,中国第一个也是唯一的中提琴教研室正式在中央音乐学院成立;2005年,中国中提琴研究会的成立,标志着中国的中提琴正式拥有了自己的组织;2013年上海音乐学院附中沈子钰同学以历届参赛最小年龄摘得第十一届特蒂斯国际中提琴比赛（Lionel Tertis International Viola Competition）第一名,成为获得此殊荣的首个华人。展开更多
基金Research was funded by National Natural Science Foundation of China with the Grant No.31601986 and Heilongjiang Postdoctoral Scientific Research Developmental Fund(LBH-Q16005).
文摘Arbuscular mycorrhizal(AM)fungi distribute widely in natural habits and play a variety of ecological functions.In order to test the physiological response to salt stress mediated by different AM fungi,Viola prionantha was selected as the host,the dominant AM fungus in the rhizosphere of V.philippica growing in Songnen saline-alkali grassland,Rhizophagus irregularis,and their mixtures were used as inoculants,and NaCl stress was applied after the roots were colonized.The results showed that V.philippica could be colonized by AM fungi in the field and the colonization rate ranged from 73.33%to 96.67%,and Claroideoglomus etunicatum was identified as the dominant AM fungi species in the rhizosphere of V.philippica by morphology combined with sequencing for AM fungal AML1/AML2 target.Inoculation with both the species resulted in the formation of mycorrhizal symbiosis(the colonization rate was more than 70%)and AM fungi significantly enhanced plants’tolerance to salt stress of varying magnitude.Higher activity of antioxidant enzymes and augmented levels of proline and other osmoregulators were observed in AM plants.The content of MDA in CK was higher than that in the inoculations with the stress of 100,200,and 250 mM.All indices except soluble protein content and MDA content were significantly correlated with AM fungal colonization indices.The analysis for different AM fungal effects showed that the mixtures and R.irregularis worked even better than C.etunicatum.These results will provide theoretical support for the exploration and screening of salt-tolerant AM fungi species and also for the application of AM-ornamental plants in saline-alkali urban greening.
文摘我国的提琴教学作为独立学科,最早相继设立于上世纪50年代的上海音乐学院、中央音乐学院与沈阳音乐学院。1987年,曾在上海音乐学院学习的萧红梅为中国人获得了第一个中提琴国际金奖;2000年,中国第一个也是唯一的中提琴教研室正式在中央音乐学院成立;2005年,中国中提琴研究会的成立,标志着中国的中提琴正式拥有了自己的组织;2013年上海音乐学院附中沈子钰同学以历届参赛最小年龄摘得第十一届特蒂斯国际中提琴比赛（Lionel Tertis International Viola Competition）第一名,成为获得此殊荣的首个华人。
