The diversity of arbuscular mycorrhizal fungi of Rosa acicularis'Luhe' in saline areas

• 作 者: Yanrong Zu Yuan Ping Liqiang Mu Tiantian Yang
• 机 构: College of Forestry, Northeast Forestry University, Harbin 150040, People’s Republic of China;Colleg
• 出 处: 林业研究（英文版）
• 发表日期: 2019年4期
• 关键词: Arbuscular mycorrhizal fungi Rosa acicularisLuhe Saline soil

Arbuscular mycorrhizal fungi (AMF) in the soil encompass a diversity of species and play an important role in maintaining ecosystem balance. However, little research has focused on the AMF diversity of Rosa acicularis Lindl.’Luhe’, which has been cultivated in northeast saline areas, because of its strong salt tolerance and cold resis-tance. In the present study the AMF in the rhizosphere of R. acicularis Luhe were identified and AMF diversity and community composition were assessed using morphologi-cal and molecular techniques. Vesicles, hyphae, and arbuscular structures were observed in seedlings of dif-ferent ages. Result shows that AMF established a good symbiotic relationship with R. acicularis Luhe. The colo-nization rate and spore density tended to increase over time. The AMF diversity in the rhizosphere of R. acicularis Luhe was low and four species of AMF were validated:Rhizophagus irregularis, Glomus aggregatum, Septoglo-mus furcatum, and Funneliformis mosseae. Of these, R. irregularis and G. aggregatum were dominant and have high salt tolerance. Determining the AMF diversity in the rhizosphere of R. acicularis Luhe will aid in screening AMF species with strong resistance and using mycorrhizas for plant establishment in breeding programs.