Functional Structure of the Bromeliad Tank Microbiome Is Strongly Shaped by Local Geochemical Conditions
Environmental Microbiology (2017) 19(8), 3132–3151 doi:10.1111/1462-2920.13788 Functional structure of the bromeliad tank microbiome is strongly shaped by local geochemical conditions Stilianos Louca,1,2* Saulo M. S. Jacques,3,4 denitrification steps, ammonification, sulfate respira- Aliny P. F. Pires,3 Juliana S. Leal,3,5 tion, methanogenesis, reductive acetogenesis and 6 1,2,7 Angelica L. Gonzalez, Michael Doebeli and anoxygenic phototrophy. Overall, CO2 reducers domi- Vinicius F. Farjalla3 nated in abundance over sulfate reducers, and 1Biodiversity Research Centre, University of British anoxygenic phototrophs largely outnumbered oxy- Columbia, Vancouver, BC, Canada. genic photoautotrophs. Functional community 2Department of Zoology, University of British Columbia, structure correlated strongly with environmental vari- Vancouver, BC, Canada. ables, between and within a single bromeliad species. 3Department of Ecology, Biology Institute, Universidade Methanogens and reductive acetogens correlated Federal do Rio de Janeiro, Rio de Janeiro, Brazil. with detrital volume and canopy coverage, and exhib- 4Programa de Pos-Graduac ¸ao~ em Ecologia e ited higher relative abundances in N. cruenta.A Evoluc¸ao,~ Universidade Estadual do Rio de Janeiro, Rio comparison of bromeliads to freshwater lake sedi- de Janeiro, Brazil. ments and soil from around the world, revealed stark differences in terms of taxonomic as well as func- 5Programa de Pos-Graduac ¸ao~ em Ecologia, tional microbial community structure. Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. 6Biology Department & Center for Computational & Introduction Integrative Biology, Rutgers University, Camden, NJ, USA. Bromeliads (fam. Bromeliaceae) are plants found through- 7Department of Mathematics, University of British out the neotropics, with many species having rosette-like Columbia, Vancouver, BC, Canada.
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