Microbiome resilience of Amazonian forests: agroforest divergence to bacteria and secondary forest succession convergence to fungi

TY - JOUR

T1 - Microbiome resilience of Amazonian forests:

T2 - agroforest divergence to bacteria and secondary forest succession convergence to fungi

AU - Leite, Márcio Fernandes Alves

AU - Liu, Binbin

AU - Gómez Cardozo, Ernesto

AU - Silva, Hulda Rocha e

AU - Luz, Ronildson Lima

AU - Muchavisoy, Karol Henry Mavisoy

AU - Moraes, Flávio Henrique Reis

AU - Rousseau, Guillaume Xavier

AU - Kowalchuk, George

AU - Gehring, Christoph

AU - Kuramae, Eiko Eurya

N1 - Data archiving: data in Zenodo

PY - 2022

Y1 - 2022

N2 - An alarming and increasing deforestation rate threatens Amazon tropical ecosystems and subsequent degradation due to frequent fires. Agroforestry systems (AFS) may offer a sustainable alternative, reportedly mimicking the plant–soil interactions of the natural mature forest (MF). However, the role of microbial community in tropical AFS remains largely unknown. This knowledge is crucial for evaluating the sustainability of AFS and practices given the key role of microbes in the aboveground–belowground interactions. The current study, by comparing different AFS and successions of secondary and MFs, showed that AFS fostered distinct groups of bacterial community, diverging from the MFs, likely a result of management practices while secondary forests converged to the same soil microbiome found in the MF, by favoring the same groups of fungi. Model simulations reveal that AFS would require profound changes in aboveground biomass and in soil factors to reach the same microbiome found in MFs. In summary, AFS practices did not result in ecosystems mimicking natural for-est plant–soil interactions but rather reshaped the ecosystem to a completely dif-ferent relation between aboveground biomass, soil abiotic properties, and the soil microbiome.

AB - An alarming and increasing deforestation rate threatens Amazon tropical ecosystems and subsequent degradation due to frequent fires. Agroforestry systems (AFS) may offer a sustainable alternative, reportedly mimicking the plant–soil interactions of the natural mature forest (MF). However, the role of microbial community in tropical AFS remains largely unknown. This knowledge is crucial for evaluating the sustainability of AFS and practices given the key role of microbes in the aboveground–belowground interactions. The current study, by comparing different AFS and successions of secondary and MFs, showed that AFS fostered distinct groups of bacterial community, diverging from the MFs, likely a result of management practices while secondary forests converged to the same soil microbiome found in the MF, by favoring the same groups of fungi. Model simulations reveal that AFS would require profound changes in aboveground biomass and in soil factors to reach the same microbiome found in MFs. In summary, AFS practices did not result in ecosystems mimicking natural for-est plant–soil interactions but rather reshaped the ecosystem to a completely dif-ferent relation between aboveground biomass, soil abiotic properties, and the soil microbiome.

KW - Aboveground-belowground interactions

KW - forest regrowth

KW - homegarden

KW - land-use changes

KW - slash-and-burn agriculture

KW - soil microbiome

KW - Tropical rainforest

U2 - 10.1111/gcb.16556

DO - 10.1111/gcb.16556

M3 - Article

SN - 1354-1013

JO - Global Change Biology

JF - Global Change Biology

ER -