Subcuticular bacteria from the brittle star Ophiactis balli (Echinodermata: Ophiuroidea) represent a new lineage of extracellular marine symbionts in the alpha subdivision of the class Proteobacteria
Article Abstract:
The 16S ribosomal RNA (rRNA) gene sequence of the subcuticular bacterial symbionts (SCB) of Ophiactis balli was amplified bu eubacterium-specific polymerase chain reaction (PCR) primers. The resulting PCR product indicated the homology of the SCB gene sequence with the alpha subdivision of the class Proteobacteria. The SCB also represent a novel lineage of Proteobacteria that are not related to other known groups of bacterial symbionts from marine invertebrates.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
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Genetic diversity among Xanthomonas campestris strains pathogenic for small grains
Article Abstract:
Indirect immunofluorescence pathogenicity tests and restriction fragment length polymorphism (RFLP) analysis help examine the genetic diversity among Xanthomonas campestris strains that are pathogenic for small grains. Pathogenicity tests on barley and serological tests reveal similarity among few strains, while they exhibit heterogeneity by RFLP analysis. Pathogenicity tests should be carried out before naming the strains at the pathovar level.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1995
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Construction and characterization of a DNA probe for distinguishing strains of Aspergillus flavus
Article Abstract:
DNA fingerprinting techniques help design a molecular hybridization probe, which helps differentiate strains of Aspergillus flavus belonging to different vegetative compatibility groups. The DNA probe has a chromosomal DNA insert of A. flavus var.flavus NRRL 6541. Hybridization of the DNA probe to various DNA fragments of the parent A. flavus NRRL 6541 reveals the presence of repetitive DNA sequence in the cloned probe.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1995
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