AM真菌对干旱区7种珍稀濒危植物引种培育的影响研究

Abstract

Abstract: In order to study the effects of AM fungi on the survival and growth of rare and endangered plants in arid regions,a pot experiment was conducted by selecting seven representative species of rare and endangered plants and six AM fungi. In the process of introduction and planting,AM fungi were inoculated. By analyzing the growth status of the plant and the infection rate of AM fungi,the optimal symbiosis pattern of AM fungi and endangered plant was selected. The results show that seven endangered plants could form symbiotic relationship with AM fungi,but there was a significant difference in the infection rate of AM fungi with the difference plants. The highest rate of infection is Poacynum pictum with F. mosseae,Ammopiptanthus nanus with D. eburneum/F. mosseae,Ephedra intermedia with C.lamellosum,Glycyrrhizauralensis with R. aggregatum/C. claroideum/F. mosseae/C. lamellosum,Glycyrrhizainflata with C. etunicatum/D. eburneum/C. claroideum,Ammopiptanthusmongolicus with C.etunicatum,Caryopteris mongholica with C. etunicatum/D. eburneum/C. claroideum. The best combination of symbiotic relationship for promoting the growth of endangered plants is the symbiosis of AM fungus F. mosseae with Poacynum pictum or Glycyrrhiza uralensis or Caryopteris mongholica,the symbiosis of fungus D. eburneum and Ammopiptanthus nanus,the fungus C. claroideum or F. mosseae symbiosis with Ephedra intermedia,the symbiosis of fungus C. lamellosum with Glycyrrhiza inflata,the symbiosis of fungus C. etunicatum and Ammopiptanthus mongolicus. The study results demonstrate a certain ecological suitability relationship between endangered plants and AM fungi. It is essential to consider their ecological suitability relationship when using AM fungi for introduction and planting of endangered plants. Within this suitability relation,AM fungi functions well. This is of great significance to the introduction and reproduction of rare and endangered plants in arid area.

Key words: arbuscular mycorrhizal fungi, infection rate, endangered plants

CLC Number:

Q948.12

ZHANG Shu-bin, CHEN Li, WANG Qian, WANG You-shan, JING Wei-min. Effects of AM fungi on introduction and cultivation of seven rare and endangered plants in arid region[J]., 2017, 40(4): 780-786.

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Effects of AM fungi on introduction and cultivation of seven rare and endangered plants in arid region

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