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    Arbuscular mycorrhizal fungi community composition, richness and diversity on enset (Ensete ventricosum (Welw.) Cheesman) in Ethiopia is influenced by manure application intensity in low‑input farming systems

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    Journal Article (1.434Mb)
    Date
    2022
    Author
    Garo, G.
    Van Geel, M.
    Eshetu, F.
    Swennen, R.
    Honnay, O.
    Vancampenhout, K.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Aims In low-input agricultural systems, arbuscular mycorrhizal fungi (AMF) play a role in plant nutrition, protection and water use. Evaluating how agricultural practices affect the composition of AMF communities is therefore an important step towards sustainable intensification. We characterized the AMF communities in enset (Ensete ventricosum) roots in smallholder enset-based farming systems in south Ethiopia and assessed the effects of soil fertility management on those communities. Methods We assessed AMF diversity and community composition in the roots of 181 enset plants from 23 farms by Illumina MiSeq amplicon sequencing. Roots were collected from intensively manured parts of the farms (regular manure application), and from less manured parts of the farms (occasional manure application). Results AMF communities in both intensively and less manured parts of the farms were comprised primarily by species belonging to Glomeraceae, which accounted for 67% of the total operational taxonomic units recorded. However, unlike Glomeraceae, majority of Acaulosporaceae sequences were recovered from less manured parts of the farms. Intensively manured parts of the farms were associated with higher soil pH, available P, organic carbon, total N and C:N ratio, and with significantly lower AMF richness and diversity. Moreover, unexpectedly organic carbon and total N explained a large part of the variation in AMF community composition compared with available P. Conclusions Intensive manure applications enhance soil nutrient availability and soil organic carbon but result in lower AMF richness and diversity, and in a shift in AMF community composition. This may promote less mutualistic AMF community.
    Acknowledgements
    This work was carried out within the framework of the Institutional University Collaboration (IUC) partnership between Arba Minch University, Ethiopia and the University of Leuven, Belgium, which was funded by the Flemish Inter-University Council for Development Collaboration VLIR-UOS. We want to thank the farmers of Gamo, Dawro and Kaffa for their hospitality and for allowing us to sample their farms. We also want to acknowledge the support of IUC coordinators Dr. Simon Shibru and Dr. Roel Merckx ...
    https://dx.doi.org/10.1007/s11104-022-05462-w
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7542
    IITA Authors ORCID
    Rony Swennenhttps://orcid.org/0000-0002-5258-9043
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1007/s11104-022-05462-w
    Research Themes
    Biotech and Plant Breeding
    IITA Subjects
    Agronomy; Farming Systems; Food Security; Plant Breeding; Plant Production; Soil Fertility
    Agrovoc Terms
    Arbuscular Mycorrhiza; Farming Systems; Soil Fertility
    Regions
    Africa; East Africa
    Countries
    Ethiopia
    Hubs
    Eastern Africa Hub
    Journals
    Plant and Soil
    Collections
    • Journal and Journal Articles4586
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