A widespread cyanobacterium supported by polyphasic approach: proposition of Koinonema pervagatum gen. & sp nov (Oscillatoriales)

Autor(es)

Buch, Bruna ^[1] ; Martins, Mariellen Dornelles ^[1] ; Branco, Luis Henrique Z. ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Zool & Bot Dept, Sao Jose Rio Preto Campus IBILCE, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PHYCOLOGY; v. 53, n. 5, p. 1097-1105, OCT 2017.
• Citações Web of Science: 2

Resumo

Several new genera originally classified as the genus Phormidium, a polyphyletic and taxonomically complex genus within the Oscillatoriales, were recently described. The simple morphology of Phormidium does not reflect its genetic diversity and the delimitation of a natural group is not possible with traditional classification systems based on morphology alone. Therefore, this study used morphological, ecological, and molecular approaches to evaluate four populations morphologically similar to Ammassolinea, Kamptonema, and Ancylothrix (simple, curved, and gradually attenuated at the ends trichome), found in subtropical and tropical Brazilian regions. 16S rRNA gene sequences grouped all the strains in a highly supported clade with other two European strains isolated from thermal springs surrounding areas. The 16S-23S ITS secondary structure corroborated the phylogenetic analysis withall the strains having similar structures. Consequently, a genetically well-defined and crypticnew genus, Koinonema gen. nov., is proposedcontaining the aquatic, mesophilic, and morphologically homogeneous new species, Koinonema pervagatum sp. nov. (AU)

• Processo FAPESP: 10/09686-4 - Estudos polifásicos de populações de Phormidioideae (Oscillatoriales, Cyanobacteria)
• Beneficiário: Mariéllen Dornelles Martins
• Linha de fomento: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/08200-1 - Avaliação polifásica de populações de Oscillatoriaceae (Oscillatoriales, Cyanobacteria)
• Beneficiário: Mariéllen Dornelles Martins
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 12/19468-0 - Perfil molecular e diversidade taxonômica de assembléias de cianobactérias em crostas biológicas de solos de cerrado
• Beneficiário: Luis Henrique Zanini Branco
• Linha de fomento: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/08207-3 - Estudos de identificação e de filogenia de Phormidioideae (Oscillatoriales, Cyanobactéria)
• Beneficiário: Mariéllen Dornelles Martins
• Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Doutorado