Home About Browse Search
Svenska


Long-term maize-Desmodium intercropping shifts structure and composition of soil microbiome with stronger impact on fungal communities

David Mwakilili, Aneth and Larsson Herrera, Sebastian and Midega, Charles A. O. and Magingo, Francis and Alsanius, Beatrix and Dekker, Teun and Lyantagaye, Sylvester Leonard (2021). Long-term maize-Desmodium intercropping shifts structure and composition of soil microbiome with stronger impact on fungal communities. Plant and Soil
[Research article]

[img] PDF
1MB

Abstract

Purpose Push-pull is an intercropping technology that is rapidly spreading among smallholder farmers in Sub-Saharan Africa. The technology intercrops cereals with Desmodium to fight off stem borers, eliminate parasitic weeds, and improve soil fertility and yields of cereals. The above-ground components of push-pull cropping have been well investigated. However, the impact of the technology on the soil microbiome and the subsequent role of the microbiome on diverse ecosystem benefits are unknown. Here we describe the soil microbiome associated with maize-Desmodium intercropping in push-pull farming in comparison to long-term maize monoculture. Methods Soil samples were collected from long-term maize-Desmodium intercropping and maize monoculture plots at the international centre for insect physiology and ecology (ICIPE), Mbita, Kenya. Total DNA was extracted before16S rDNA and ITS sequencing and subsequent analysis on QIIME2 and R. Results Maize-Desmodium intercropping caused a strong divergence in the fungal microbiome, which was more diverse and species rich than monoculture plots. Fungal groups enriched in intercropping plots are linked to important ecosystem services, belonging to functional groups such as mycorrhiza, endophytes, saprophytes, decomposers and bioprotective fungi. Fewer fungal genera were enriched in monoculture plots, some of which were associated with plant pathogenesis and opportunistic infection in humans. In contrast, the impact of intercropping on soil bacterial communities was weak with few differences between intercropping and monoculture. Conclusion Maize-Desmodium intercropping diversifies fungal microbiomes and favors taxa associated with important ecosystem services including plant health, productivity and food safety.

Authors/Creators:David Mwakilili, Aneth and Larsson Herrera, Sebastian and Midega, Charles A. O. and Magingo, Francis and Alsanius, Beatrix and Dekker, Teun and Lyantagaye, Sylvester Leonard
Title:Long-term maize-Desmodium intercropping shifts structure and composition of soil microbiome with stronger impact on fungal communities
Series Name/Journal:Plant and Soil
Year of publishing :2021
Number of Pages:14
Publisher:SPRINGER
Associated Programs and Other Stakeholders:Z - SLU - Library > Odla mera
ISSN:0032-079X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Keywords:Soil microbiome, Push-pull farming, Intercropping microbiome, 16S, ITS, Desmodium spp
URN:NBN:urn:nbn:se:slu:epsilon-p-113308
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113308
Additional ID:
Type of IDID
DOI10.1007/s11104-021-05082-w
Web of Science (WoS)000684787300001
ID Code:25157
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
(LTJ, LTV) > Department of Biosystems and Technology (from 130101)
Deposited By: SLUpub Connector
Deposited On:02 Sep 2021 12:26
Metadata Last Modified:03 Sep 2021 04:00

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits