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Full-Text Articles in Life Sciences
Mycobacterium Pseudoshottsii Sp Nov., A Slowly Growing Chromogenic Species Isolated From Chesapeake Bay Striped Bass (Morone Saxatilis), Mw Rhodes, H Kator, Et Al, I Kaattari, Kimberly S. Reece, Wolfgang K. Vogelbein, Ca Ottinger
Mycobacterium Pseudoshottsii Sp Nov., A Slowly Growing Chromogenic Species Isolated From Chesapeake Bay Striped Bass (Morone Saxatilis), Mw Rhodes, H Kator, Et Al, I Kaattari, Kimberly S. Reece, Wolfgang K. Vogelbein, Ca Ottinger
VIMS Articles
A group of slowly growing photochromogenic mycobacteria was isolated from Chesapeake Bay striped bass (Morone saxatilis) during an epizootic of mycobacteriosis. Growth characteristics, acid-fastness and 16S rRNA gene sequencing results were consistent with those of the genus Mycobacterium, Biochemical reactions, growth characteristics and mycolic acid profiles (HPLC) resembled those of Mycobacterium shottsii, a non-pigmented mycobacterium also isolated during the same epizootic. Sequencing of the 16S rRNA genes, the gene encoding the exported repeated protein (erp) and the gene encoding the 65 kDa heat-shock protein (hsp65) and restriction enzyme analysis of the hsp65 gene demonstrated that this group of isolates is …
Copepods As Microbial Hotspots In The Ocean: Effects Of Host Feeding Activities On Attached Bacteria, Kw Tang
Copepods As Microbial Hotspots In The Ocean: Effects Of Host Feeding Activities On Attached Bacteria, Kw Tang
VIMS Articles
Through ingestion a copepod introduces rich organic substrates into its guts and fecal pellets, where dense bacteria may exploit them and show fast growth. Thus, a copepod and its fecal pellets may be regarded as microbial hotspots in the ocean. This study investigated the effects of copepods' feeding activities on the associated bacteria, using the Most Probable Number (MPN) method. Starved Acartia tonsa (calanoid copepod) carried a background bacteria population of 103 to 10(4) copepod(-1). When fed axenic cultures of algae Rhodomonas salina or Dunaliella tertiolecta, the bacterial abundance increased curvilinearly with the copepods' ingestion rates. When fed axenic cultures …