Isolation of Toxigenic Nocardiopsis Strains from Indoor Environments and Description of Two New Nocardiopsis Species, N. exhalans sp. nov. and N. umidischolae sp. nov-Reference-Cited by-同舟云学术

Isolation of Toxigenic Nocardiopsis Strains from Indoor Environments and Description of Two New Nocardiopsis Species, N. exhalans sp. nov. and N. umidischolae sp. nov

Published:2001-09 Issue:9 Volume:67 Page:4293-4304
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

Peltola Joanna S. P.¹,Andersson Maria A.¹,Kämpfer Peter²,Auling Georg³,Kroppenstedt Reiner M.⁴,Busse Hans-Jürgen⁵,Salkinoja-Salonen Mirja S.¹,Rainey Frederick A.⁶

Affiliation:

1. Department of Applied Chemistry and Microbiology, FIN-00014 University of Helsinki, Finland1;

2. Institut für Angewandte Mikrobiologie, Justus-Liebig Universität, D-35392 Giessen,2

3. Institut für Mikrobiologie, Universität Hannover, D-30167 Hannover,3 and

4. Deutsche Sammlung von Mikroorganismen und Zellkulturen, D-38124 Braunschweig,4 Germany;

5. Institut für Bakteriologie und Tierhygiene, Veterinärmedizinische Universität, A-1210 Vienna, Austria5; and

6. Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana 708036

Abstract

ABSTRACT Nocardiopsis strains were isolated from water-damaged indoor environments. Two strains ( N. alba subsp. alba 704a and a strain representing a novel species, ES10.1) as well as strains of N. prasina, N. lucentensis, and N. tropica produced methanol-soluble toxins that paralyzed the motility of boar spermatozoa at <30 μg of crude extract (dry weight) ml −1 . N. prasina, N. lucentensis, N. tropica , and strain ES10.1 caused cessation of motility by dissipating the mitochondrial membrane potential, Δψ, of the boar spermatozoa. Indoor strain 704a produced a substance that destroyed cell membrane barrier function and depleted the sperm cells of ATP. Indoor strain 64/93 was antagonistic towards Corynebacterium renale . Two indoor Nocardiopsis strains were xerotolerant, and all five utilized a wide range of substrates. This combined with the production of toxic substances suggests good survival and potential hazard to human health in water-damaged indoor environments. Two new species, Nocardiopsis exhalans sp. nov. (ES10.1 T ) and Nocardiopsis umidischolae sp. nov. (66/93 T ), are proposed based on morphology, chemotaxonomic and physiological characters, phylogenetic analysis, and DNA-DNA reassociations.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/AEM.67.9.4293-4304.2001

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