Indigenous Isolates of Arbuscular Mycorrhizal Fungi in Citrus Orchard Soil and Their Growth-Promoting Effects

doi:10.3969/j.issn.1009-7791.2018.04.005

Subtropical Plant Science ›› 2018, Vol. 47 ›› Issue (04): 327-332.DOI: 10.3969/j.issn.1009-7791.2018.04.005

• Plant ecology, resources and taxonomy • Previous Articles Next Articles

Indigenous Isolates of Arbuscular Mycorrhizal Fungi in Citrus Orchard Soil and Their Growth-Promoting Effects

WU Wei, ZHOU Yang, CHEN Jie-zhong, ZHU Hong-hui, YAO Qing

(1.Suzhou Vocational and Technical College, Suzhou 234000, Anhui China; 2.College of Horticulture, South China Agricultural University／Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Guangzhou 510642, Guangdong China; 3.Guangdong Institute of Microbiology, Guangzhou 510070, Guangdong China)

Received:2018-09-19 Revised:2018-09-28 Online:2018-12-30 Published:2018-12-30
Contact: YAO Qing

柑橘园土壤中丛枝菌根真菌土著菌株的促生效应研究

吴伟，周杨，陈杰忠，朱红惠，姚青

(1.宿州职业技术学院，安徽宿州 234000；2.华南农业大学园艺学院／广东省微生物信号与作物病害防控重点实验室，广东广州 510642；3.广东省微生物研究所，广东广州 510070)

通讯作者: 姚青
作者简介:吴伟，硕士，副教授，从事果树栽培及生理研究。
基金资助:
国家自然科学基金项目(31570395)；安徽省教育厅质量工程项目(2015zy096)；广东省科技创新领军人才(2015TX01N036)；广东省科学院实施创新驱动发展能力建设专项资金项目(2017GDASCX-0402)

Abstract

Abstract: Citrus plants are highly dependent on arbuscular mycorrhizal (AM) fungi, therefore, it is of practical significance to screen efficient isolates from citrus orchard soil. This study used 4 indigenous AMF isolates from citrus (‘Hongjiangcheng’ cultivar with Citrus haniana stock) orchard soil in Zengcheng, Guangdong Province as materials, investigated the growth-promoting effects of indigenous isolates on citrus plants. Results indicated that 4 isolates belonged to Scutellospora and Glomus, with root colonization rate of 12.7%—29.3%. Compared with the non-inoculated control, 4 indigenous isolates promoted the plant height, biomass and N, P, K nutrient content of ‘Hongjiangcheng’ seedlings, with mycorrhizal dependency of 9.4%—37.1%. Principle component analysis suggested that the growth-promoting effect of indigenous isolate ZCSP-D was similar to that of the commonly used efficient isolate Rhizophagus irregularis.

Key words: arbuscular mycorrhizal fungi, citrus orchard, indigenous isolate, growth-promoting effect

摘要： 柑橘对丛枝菌根(AM)真菌具有较高的依赖性，从柑橘园土壤中分离筛选的高效促生AM真菌菌株具有重要的应用价值。本研究从广东增城柑橘园(酸橘砧‘红江橙’)土壤中分离的4个AM真菌土著菌株对‘红江橙’幼苗的促生效应。结果表明，4个土著菌株分别是Scutellospora属和Glomus属菌株，根系侵染率为12.7%～29.3%；与不接种对照相比，4个土著菌株不同程度地促进‘红江橙’幼苗的株高、生物量和N、P、K养分含量，菌根依赖性达9.4%～37.1%；主成分分析表明，土著菌株ZCSP-D的促生效应达到常用优良菌株Rhizophagus irregularis的水平。

关键词: 丛枝菌根真菌, 柑橘园, 土著菌株, 促生效应

CLC Number:

S154.39

WU Wei, ZHOU Yang, CHEN Jie-zhong, ZHU Hong-hui, YAO Qing. Indigenous Isolates of Arbuscular Mycorrhizal Fungi in Citrus Orchard Soil and Their Growth-Promoting Effects[J]. Subtropical Plant Science, 2018, 47(04): 327-332.

吴伟，周杨，陈杰忠，朱红惠，姚青. 柑橘园土壤中丛枝菌根真菌土著菌株的促生效应研究[J]. 亚热带植物科学, 2018, 47(04): 327-332.

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Indigenous Isolates of Arbuscular Mycorrhizal Fungi in Citrus Orchard Soil and Their Growth-Promoting Effects

柑橘园土壤中丛枝菌根真菌土著菌株的促生效应研究

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