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Application of a recA gene-based identification approach to the maize rhizosphere reveals novel diversity in Burkholderia species

Payne, George William, Ramette, Alban, Rose, Helen Louise, Weightman, Andrew John, Jones, Thomas Hefin, Tiedje, James M. and Mahenthiralingam, Eshwar 2006. Application of a recA gene-based identification approach to the maize rhizosphere reveals novel diversity in Burkholderia species. FEMS Microbiology Letters 259 (1) , pp. 126-132. 10.1111/j.1574-6968.2006.00257.x

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Abstract

Burkholderia species are widely distributed in the natural environment. We evaluated the use of the recA gene in a cultivation-independent approach to examine the Burkholderia diversity associated with the maize rhizosphere. Two types of recA gene library were constructed, one with broad-specificity recA primers (BUR1 and BUR2) and a second from the products of nested PCRs using Burkholderia-specific primers (BUR3 and BUR4). The broad-specificity primer set provided near full-length recA sequences (869 bp) suitable for the creation of robust environmental sequence data sets; however, the nested PCR approach demonstrated the greatest specificity (84%) for detection of Burkholderia species recA genes. In addition, the screening approach was able to identify recA phylotypes matching Burkholderia cepacia complex species previously cultivated from the maize samples and discriminate these from other Burkholderia. The ecological benefit of Burkholderia species cultivated from maize rhizosphere is well documented, however, the fact that the majority of Burkholderia recA genes detected in this study (90%) were suggestive of novel taxa indicates that a wealth of potentially important interactions with uncultivated Burkholderia species remain unstudied in this habitat.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > Q Science (General)
Uncontrolled Keywords: Burkholderia; rhizosphere diversity; cultivation-independent analysis; PCR.
Publisher: Wiley-Blackwell
ISSN: 0378-1097
Last Modified: 17 May 2019 21:40
URI: http://orca.cf.ac.uk/id/eprint/62638

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