Soil-borne microbiome: linking diversity to function

L.M. Mendes, S.M. Tsai, Acácio A. Navarrete, Mattias De Hollander, J.A. Van Veen, Eiko E. Kuramae

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Soil microorganisms are sensitive to environment
disturbances, and such alterations have consequences on microbial
diversity and functions. Our hypothesis is that alpha
diversity of microbial communities and functional diversity
decrease from undisturbed to disturbed soils, with consequences
for functional redundancy in the soil ecosystem. To
test this hypothesis, we used soil DNA shotgun metagenomics
approach to assess the soil microbiome in a chronosequence
of land-use from a native tropical forest, followed by deforestation
and cultivation of soybean croplands and pasture in
different seasons. Agriculture and pasture soils were among
the most diverse and presented higher functional redundancy,
which is important to maintain the ecosystemfunctioning after
the forest conversion. On the other hand, the ecosystem equilibrium
in forest is maintained based on a lower alpha diversity
but higher abundance of microorganisms. Our results
indicate that land-use change alters the structure and composition
of microbial communities; however, ecosystem
functionality is overcome by different strategies based on the
abundance and diversity of the communities.
Original languageEnglish
Pages (from-to)255-265
JournalMicrobial Ecology
Issue number1
Publication statusPublished - 2015


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