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metadata.artigo.dc.title: Diazotrophic bacteria in star flowers
metadata.artigo.dc.title.alternative: Bactérias diazotróficas em sempre-viva
metadata.artigo.dc.creator: Marra, Leandro Marciano
Grazziotti, Paulo Henrique
Nunes, Ubirajara Russi
Moreira, Fatima Maria de Souza
metadata.artigo.dc.subject: Biological nitrogen fixation
Diazotrophic bacteria
Low fertility soils
Fixação biológica de nitrogênio
Bactéria diazotrófica
Solos de baixa fertilidade
metadata.artigo.dc.publisher: Universidade Federal de Uberlândia Mar-2012
metadata.artigo.dc.identifier.citation: MARRA, L. M. et al. Diazotrophic bacteria in star flowers. Bioscience Journal, Uberlândia, v. 28, n. 1, p. 17-24, Mar. 2012.
metadata.artigo.dc.description.abstract: This study evaluated the occurrence and density of associative diazotrophic bacteria in the rhizosphere, collar, roots and leaves of Syngonanthus elegans (Bong) Ruhland (Goldenfoot) and Syngonanthus aciphyllus (Mini-skirt). These species are able to grow in poor soils. Five samples, with 25 plants both of S. elegans and S. aciphyllus, each were collected in Soberbo stream, Diamantina-MG, Brazil. The occurrence and the density of diazotrophic bacteria were evaluated by the most probable number (MPN) method in semi-selective N-free media NFb, LGI, JNFb, and JMV. In general, for both species, a high density of diazotrophic bacteria was observed in all of the microenvironments evaluated. The density was greater in S. elegans than in S. aciphyllus. The associative occurrence of diazotrophic bacteria in S. elegans and S. aciphyllus can contribute to plant adaptation to low fertility soils.
metadata.artigo.dc.language: en_US
Appears in Collections:DCS - Artigos publicados em periódicos

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