Effect of Polygonum multiflorum-Andrographis paniculata intercropping system on rhizosphere soil actinomycetes community structure and diversity of P. multiflorum.
10.19540/j.cnki.cjcmm.20200816.103
- Author:
Chang-Zheng LIU
1
;
Liang-Yun ZHOU
1
;
Pei-Ran LIAO
1
;
Lei ZHONG
1
;
Qi-Zhong CAI
1
;
Xiao-Lin JIANG
1
;
Quan YANG
1
Author Information
1. Guangdong Provincial Research Center on Good Agricultural Practice & Comprehensive Agricultural Development Engineering Technology of Cantonese Medicinal Materials, Guangzhou Comprehensive Experimental Station Chinese Materia Medica Industry Technology System, Key Laboratory for Production & Development of Cantonese Medicinal Materials Under State Administration of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006, China.
- Publication Type:Journal Article
- Keywords:
Andrographis paniculata;
Polygonum multiflorum;
actinomycetes;
community structure;
diversity;
intercropping
- MeSH:
Actinobacteria;
Actinomyces;
Agriculture;
Andrographis;
Fallopia multiflora;
Rhizosphere;
Soil;
Soil Microbiology
- From:
China Journal of Chinese Materia Medica
2020;45(22):5452-5458
- CountryChina
- Language:Chinese
-
Abstract:
To investigate the effect of Polygonum multiflorum-Andrographis paniculata intercropping system on rhizosphere soil actinomycetes of P. multiflorum, the community structure and diversity of soil actinomycetes were studied by using the original soil as the control group and the rhizosphere soil actinomycetes communities of P. multiflorum under monoculture and intercropping systems as the experimental group. In this study 655 221 effective sequences were obtained with an average length of 408 bp. OTU coverage and rarefaction curve showed that the sequencing could represent the real situation of soil actinomycetes. According to the results of alpha diversity analysis, the diversity soil actinomycetes varied as follows: original soil>intercropping soil>monoculture soil. The soil actinomycetes community structure and the relative abundance of dominant genera were significantly changed by both monoculture and intercropping, especially monoculture. OTU clustering and PCA analysis of soil samples showed that all the soil samples were divided into three distinct groups and the original soil was more similar to intercropping soil. In addition, intercropping increased the relative abundance of some beneficial actinomyces, such as Kitasatospora and Mycobacterium, which was beneficial to maintain soil health and reduce the occurrence of soil-borne diseases. The results show that, P. multiflorum-A. paniculata intercropping reduced the change of community structure and the decrease of diversity of soil actinomycetes caused by P. multiflorum monoculture, and made the actinomycete community in rhizosphere soil of P. multiflorum close to the original soil.
