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Gibbsiella greigii sp. nov., a novel species associated with oak decline in the USA

Brady, Carrie; Hunter, Gavin; Kirk, Susan; Arnold, Dawn L.; Denman, Sandra


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Carrie Brady
Senior Lecturer - CHSS - SOAS

Gavin Hunter

Susan Kirk

Dawn Arnold
Professor in Molecular Plant Pathology

Sandra Denman


In 2010, cream-coloured, Gram-negative staining, facultatively anaerobic enterobacteria were isolated from a single black oak tree (Quercus kelloggii) exhibiting decline symptoms in southern California, USA. These 12 isolates were tentatively identified as Gibbsiella quercinecans based on partial gyrB sequencing. Closer examination of the strains using multilocus sequence analysis, based on partial sequences of gyrB, rpoB, infB and atpD genes, and almost complete 16S rRNA gene sequencing suggested that the isolates belong to a novel taxon within the genus Gibbsiella with G. quercinecans as their closest phylogenetic relative. DNA-DNA relatedness studies confirmed that the strains belong to a single taxon in Gibbsiella, which can be differentiated from other members of the genus by several phenotypic traits. Therefore, the name Gibbsiella greigii sp. nov. is proposed for this novel species isolated from symptomatic Q. kelloggii in the USA with FRB 224T (=LMG 27716T=NCPPB 4583T) as the type strain. © 2014 .


Brady, C., Hunter, G., Kirk, S., Arnold, D. L., & Denman, S. (2014). Gibbsiella greigii sp. nov., a novel species associated with oak decline in the USA. Systematic and Applied Microbiology, 37(6), 417-422.

Journal Article Type Article
Acceptance Date Jul 11, 2014
Online Publication Date Jul 21, 2014
Publication Date Sep 1, 2014
Deposit Date Sep 3, 2014
Journal Systematic and Applied Microbiology
Print ISSN 0723-2020
Electronic ISSN 1618-0984
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 37
Issue 6
Pages 417-422
Keywords Gibbsiella, enterobacteriaceae, acute oak decline, quercus kelloggii, MLSA, taxonomy
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Publisher URL
Additional Information Additional Information : Available online before print 21 July 2014