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Nodulation of the neotropical genus Calliandra by alpha or betaproteobacterial symbionts depends on the biogeographical origins of the host species.
Zilli, Jerri Édson; de Moraes Carvalho, Camila Pereira; de Matos Macedo, Aline Vieira; de Barros Soares, Luis Henrique; Gross, Eduardo; James, Euan Kevin; Simon, Marcelo Fragomeni; de Faria, Sergio Miana.
Afiliação
  • Zilli JÉ; Embrapa Agrobiologia, BR 465 km 07, Seropédica, Rio de Janeiro, 23891-000, Brazil. jerri.zilli@embrapa.br.
  • de Moraes Carvalho CP; Embrapa Agrobiologia, BR 465 km 07, Seropédica, Rio de Janeiro, 23891-000, Brazil.
  • de Matos Macedo AV; Embrapa Agrobiologia, BR 465 km 07, Seropédica, Rio de Janeiro, 23891-000, Brazil.
  • de Barros Soares LH; Embrapa Agrobiologia, BR 465 km 07, Seropédica, Rio de Janeiro, 23891-000, Brazil.
  • Gross E; Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz, Ilhéus, 45662-900, Bahia, Brazil.
  • James EK; The James Hutton Institute, Invergowrie, , DD2 5DA, Dundee, UK.
  • Simon MF; Embrapa Recursos Genéticos e Biotecnologia, Cx. Postal 02372, Brasília, DF, 70770-917, Brazil.
  • de Faria SM; Embrapa Agrobiologia, BR 465 km 07, Seropédica, Rio de Janeiro, 23891-000, Brazil.
Braz J Microbiol ; 52(4): 2153-2168, 2021 Dec.
Article em En | MEDLINE | ID: mdl-34245449
The neotropical genus Calliandra is of great importance to ecology and agroforestry, but little is known about its nodulation or its rhizobia. The nodulation of several species from two restricted diversity centres with native/endemic species (Eastern Brazil and North-Central America) and species widespread in South America, as well as their nodule structure and the molecular characterization of their rhizobial symbionts based on phylogeny of the 16S rRNA, recA and nodC gene, is reported herein. Species representative of different regions were grown in Brazilian soil, their nodulation observed, and their symbionts characterized. Calliandra nodules have anatomy that is typical of mimosoid nodules regardless of the microsymbiont type. The rhizobial symbionts differed according to the geographical origin of the species, i.e. Alphaproteobacteria (Rhizobium) were the exclusive symbionts from North-Central America, Betaproteobacteria (Paraburkholderia) from Eastern Brazil, and a mixture of both nodulated the widespread species. The symbiont preferences of Calliandra species are the result of the host co-evolving with the "local" symbiotic bacteria that thrive in the different edaphoclimatic conditions, e.g. the acidic soils of NE Brazil are rich in acid-tolerant Paraburkholderia, whereas those of North-Central America are typically neutral-alkaline and harbour Rhizobium. It is hypothesized that the flexibility of widespread species in symbiont choice has assisted in their wider dispersal across the neotropics.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Rhizobium / Microbiologia do Solo / Nódulos Radiculares de Plantas / Interações entre Hospedeiro e Microrganismos / Fabaceae País/Região como assunto: America do sul / Brasil Idioma: En Revista: Braz J Microbiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Rhizobium / Microbiologia do Solo / Nódulos Radiculares de Plantas / Interações entre Hospedeiro e Microrganismos / Fabaceae País/Região como assunto: America do sul / Brasil Idioma: En Revista: Braz J Microbiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil