- International Journal of Systematic and Evolutionary Microbiology
- Volume 43, Issue 1
f Enterobacter pyrinus sp. nov., an Organism Associated with Brown Leaf Spot Disease of Pear Trees
- Authors: Young Ryun Chung*, Don J. Brenner, Arnold G. Steigerwalt, Byung Sup Kim, Heung Tae Kim, Kwang Yun Cho
- *Corresponding author.
- First Published Online: 01 January 1993, International Journal of Systematic and Evolutionary Microbiology 43: 157-161, doi: 10.1099/00207713-43-1-157
- Subject: Original Papers Relating To Systematic Bacteriology
- Issue Published:
A new species, Enterobacter pyrinus, which was isolated from brown leaf spot lesions on pear trees, is described on the basis of the characteristics of seven strains. These bacteria are gram-negative, facultatively anaerobic, straight rods (0.6 to 1.0 by 1.6 to 2.3 μm) that are motile and peritrichous. As determined by DNA hybridization (hydroxyapatite method), these seven strains were 97.5% related in both 60 and 75°C reactions, with no evidence of sequence divergence, indicating that they are members of a single species. E. pyrinus is most closely related to Enterobacter gergoviae (46%) and to Enterobacter agglomerans hybridization group XI (37%). E. pyrinus is differentiated from E. gergoviae by its growth in KCN broth, acid production from myo-inositol, and lack of acid production from raffinose. The type strain of E. pyrinus is strain KCTC 2520 (= CDC G6570 = ATCC 49851).
Copyright © 1993 International Union of Microbiological Societies | Published by the Microbiology Society
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