Continuous monocropping highly affect the composition and diversity of microbial communities in peanut (Arachis hypogaea L.)

  • Ali I. MALLANO Shandong Academy of Agriculture Science, Biotechnology Research Center, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Physiology and Ecology, Jinan, 250100 (CN)
  • Xianli ZHAO Shandong Academy of Agriculture Science, Biotechnology Research Center, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Physiology and Ecology, Jinan, 250100 (CN)
  • Yanling SUN Shandong Academy of Agriculture Science, Biotechnology Research Center, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Physiology and Ecology, Jinan, 250100 (CN)
  • Guangpin JIANG Shandong Siwenhouyi Agriculture Co. Ltd. (CN)
  • Huang CHAO Shandong Academy of Agriculture Science, Biotechnology Research Center, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Physiology and Ecology, Jinan, 250100 (CN)
Keywords: Archaea population structure, continuous monocropping, microbial responses, peanut (Arachis hypogaea L.), pathogen fungi, rhizosphere bacterial community


Continuous cropping systems are the leading cause of decreased soil biological environments in terms of unstable microbial population and diversity index. Nonetheless, their responses to consecutive peanut monocropping cycles have not been thoroughly investigated. In this study, the structure and abundance of microbial communities were characterized using pyrosequencing-based approach in peanut monocropping cycles for three consecutive years. The results showed that continuous peanut cultivation led to a substantial decrease in soil microbial abundance and diversity from initial cropping cycle (T1) to later cropping cycle (T3). Peanut rhizosphere soil had Actinobacteria, Protobacteria, and Gemmatimonadetes as the major bacterial phyla. Ascomycota, Basidiomycota were the major fungal phylum, while Crenarchaeota and Euryarchaeota were the most dominant phyla of archaea. Several bacterial, fungal and archaeal taxa were significantly changed in abundance under continuous peanut cultivation. Bacterial orders, Actinomycetales, Rhodospirillales and Sphingomonadales showed decreasing trends from T1>T2>T3. While, pathogenic fungi Phoma was increased and beneficial fungal taxa Glomeraceae decreased under continuous monocropping. Moreover, Archaeal order Nitrososphaerales observed less abundant in first two cycles (T1&T2), however, it increased in third cycle (T3), whereas, Thermoplasmata exhibit decreased trends throughout consecutive monocropping. Taken together, we have shown the taxonomic profiles of peanut rhizosphere communities that were affected by continuous peanut monocropping. The results obtained from this study pave ways towards a better understanding of the peanut rhizosphere soil microbial communities in response to continuous cropping cycles, which could be used as bioindicator to monitor soil quality, plant health and land management practices.


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How to Cite
MALLANO, A. I., ZHAO, X., SUN, Y., JIANG, G., & CHAO, H. (2021). Continuous monocropping highly affect the composition and diversity of microbial communities in peanut (Arachis hypogaea L.). Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 49(4), 12532.
Research Articles
DOI: 10.15835/nbha49412532