Cyanobacterial diversity in the phyllosphere of a mangrove forest

Author(s)

Rigonato, Janaina ^[1] ; Alvarenga, Danillo Oliveira ^[1] ; Andreote, Fernando Dini ^[2] ; Franco Dias, Armando Cavalcante ^[2] ; Melo, Itamar Soares ^[3] ; Kent, Angela ^[4] ; Fiore, Marli Fatima ^[1]

Affiliation

^[1] Univ Sao Paulo, Ctr Nucl Energy Agr, CENA USP, BR-13400970 Piracicaba, SP - Brazil

^[2] Univ Sao Paulo, Dept Soil Sci, ESALQ USP, BR-13400970 Piracicaba, SP - Brazil

^[3] Embrapa Environm, Lab Environm Microbiol, Jaguariuna, SP - Brazil

^[4] Univ Illinois, Dept Nat Resources & Environm Sci, Urbana, IL 61801 - USA

• Document type: Journal article
• Source: FEMS MICROBIOLOGY ECOLOGY; v. 80, n. 2, p. 312-322, MAY 2012.
• Web of Science Citations: 27

Abstract

The cyanobacterial community colonizing phyllosphere in a well-preserved Brazilian mangrove ecosystem was assessed using cultivation-independent molecular approaches. Leaves of trees that occupy this environment (Rhizophora mangle, Avicennia schaueriana and Laguncularia racemosa) were collected along a transect beginning at the margin of the bay and extending upland. The results demonstrated that the phyllosphere of R.similar to mangle and L.similar to racemosa harbor similar assemblages of cyanobacteria at each point along the transect. A.similar to schaueriana, found only in the coastal portions of the transect, was colonized by assemblages with lower richness than the other trees. However, the results indicated that spatial location was a stronger driver of cyanobacterial community composition than plant species. Distinct cyanobacterial communities were observed at each location along the coast-to-upland transect. Clone library analysis allowed identification of 19 genera of cyanobacteria and demonstrated the presence of several uncultivated taxa. A predominance of sequences affiliated with the orders Nostocales and Oscillatoriales was observed, with a remarkable number of sequences similar to genera Symphyonemopsis/Brasilonema (order Nostocales). The results demonstrated that phyllosphere cyanobacteria in this mangrove forest ecosystem are influenced by environmental conditions as the primary driver at the ecosystem scale, with tree species exerting some effect on community structure at the local scale. (AU)

• FAPESP's process: 08/54013-8 - Diversity of archaea and bacteria involved in the nitrogen cycling in mangrove sediments
• Grantee: Armando Cavalcante Franco Dias
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 04/13910-6 - Biodiversity and functional activities of microorganisms from mangrove of the State of São Paulo
• Grantee: Itamar Soares de Melo
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 07/08354-5 - Assessment of the genetic diversity of cyanobacteria from São Paulo State mangroves using DGGE and library of 16S rDNA gene
• Grantee: Janaina Rigonato
• Support Opportunities: Scholarships in Brazil - Doctorate