Occurrence of diazotrophic bacteria in Araucaria angustifolia

Authors

  • Rafaela de Fátima Neroni USP; ESALQ; Programa de Pós-Graduação em Solos e Nutrição de Plantas
  • Elke Jurandy Bran Nogueira Cardoso USP; ESALQ; Depto. de Ciência do Solo, Lab. de Microbiologia do Solo

DOI:

https://doi.org/10.1590/S0103-90162007000300015

Keywords:

biological nitrogen fixation, endophytic bacteria, rhizosphere, forest

Abstract

Araucaria angustifolia is an environmentally threatened tree and the whole biota of the Araucaria Forest should be investigated with the aim of its preservation. Diazotrophic bacteria are extremely important for the maintenance of ecosystems, but they have never been studied in Araucaria Forests. In this study, diazotrophic bacteria were isolated from Araucaria roots and soil, when grown in semi-specific, semi-solid media. The diazotrophic character of some recovered isolates could be confirmed using the acetylene reduction assay. According to their 16S rRNA sequences, most of these isolates belong to the genus Burkholderia.

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Published

2007-06-01

Issue

Vol. 64 No. 3 (2007)

Section

Note

License

All content of the journal, except where identified, is licensed under a Creative Common attribution-type BY-NC.

How to Cite

Occurrence of diazotrophic bacteria in Araucaria angustifolia . (2007). Scientia Agricola, 64(3), 303-304. https://doi.org/10.1590/S0103-90162007000300015