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    Compositional shifts in microbial diversity under traditional banana cropping systems of sub-saharan Africa

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    Journal Article (1.499Mb)
    Date
    2022
    Author
    Kaushal, M.
    Tumuhairwe, J.B.
    Kaingo, J.
    Richards, M.
    Nakamanya, F.
    Taulya, G.
    Coyne, D.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Improvements in the crop productivity, soil health, and sustainable intensification should be premised on the better understanding of interactions between the cropping systems and soil microbial diversity. In this study, we assessed variations in the microbial communities across the traditional banana-based cropping systems of contrasting monocrop vigor (vigorous or V vs. non-vigorous or NV) and the cropping system (monocrop or MC vs. intercropped or IC) using 16S rDNA (V3–V4) and ITS2 amplicon deep sequencing via Illumina platform. Sequencing results of the bacterial and fungal communities showed high variability among MC and V cropping systems. The abundances of Proteobacteria, Firmicutes, and Actinobacteria were significantly higher in NV (non-vigorous) and V (vigorous) cropping systems; and the abundances of Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes in the MC (monocropping) than IC (intercropping). There were high relative abundances of Pseudomonas (6.1–37.43%), Bacillus (4.5–20.4%), Rhizobium (1.4–6.5%), and Devosia (1.5–6.7%) in the cropping systems. The dominant family of fungal class Incertae_sedis was Mortierellales, which accounted for 8.79–41.12% of total taxa. This result indicated that the cropping systems are vital for supporting the dynamic microbial diversity specifically beneficial for bacterial communities that helps in promoting synergistic plant-soil interactions and total productivity under resource poor conditions of smallholder farmers in sub-Saharan Africa (SSA).
    https://dx.doi.org/10.3390/biology11050756
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7500
    IITA Authors ORCID
    Godfrey Taulyahttps://orcid.org/0000-0002-5690-0492
    Daniel Coynehttps://orcid.org/0000-0002-2030-6328
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.3390/biology11050756
    Research Themes
    Natural Resource Management; Plant Production and Health
    IITA Subjects
    Agronomy; Banana; Crop Systems; Food Security; Plant Breeding; Plant Health; Plant Production; Smallholder Farmers
    Agrovoc Terms
    Bananas; Cropping Systems; Enzymes; Sub–Saharan Africa; Food Security
    Regions
    Africa; Africa South of Sahara; East Africa
    Countries
    Tanzania; Uganda
    Hubs
    Eastern Africa Hub
    Journals
    Biology
    Collections
    • Annual Reports28
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