The Present Status of Some Aspects of Marine Microbiology

Scholes, Robina B.; Shewan, J. M.

doi:10.1016/s0065-2881(08)60032-2

Cited by 19 publications

(10 citation statements)

References 57 publications

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“…Our present work confirms this and is in agreement with the findings of others (Brisou, 1955;Scholes & Shewan, 1964;Kriss et al, 1967;de la Roy, 1968) with other marine waters and sediments.…”

Section: Discussionsupporting

confidence: 94%

“…Vibrio and Pseudomonas spp. predominated in the sediments and this is in accordance with the observations of other workers (Brisou, 1955;Scholes & Shewan, 1964; Kriss, Mishustina, Mitskevich & Zemstova, 1967). However, it would be wrong to assume this on the evidence provided because all the colonies on each plate were not retained.…”

Section: Sediment Flora Bacterial Plate Countssupporting

confidence: 92%

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Aerobic Bacterial Flora of the Bahama Bank

McCallum

1970

Journal of Applied Bacteriology

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Section: Discussionsupporting

confidence: 94%

Section: Sediment Flora Bacterial Plate Countssupporting

confidence: 92%

Aerobic Bacterial Flora of the Bahama Bank

McCallum

1970

Journal of Applied Bacteriology

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“…These results agree with those of other workers who have suggested that the need for Na+ in metabolism and in the maintenance of the wall is one of the main characteristics of the 'true' marine bacteria (Scholes & Shewan, 1964;McLeod, 1965;DeVoe & Oginsky, 1969a, b).…”

Section: Taxonomic Featuressupporting

confidence: 92%

Taxonomic Position and Seasonal Variations in Marine Neritic Environment of Some Gram-negative Antibiotic-producing Bacteria

Gauthier¹,

Shewan²,

Gibson³

et al. 1975

Journal of General Microbiology

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S U M M A R YSix marine bacteria which synthesize macromolecular antibiotics were isolated from neritic waters on the French Mediterranean coast, and their frequency recorded over two successive years.They appeared in relatively large numbers during the period August to December, and can be identified as marine pseudomonads; however, the low guaninecytosine ratio of their DNA, lack of catalase and specific self-inhibition are not compatible with the characteristics of the genus Pseudomonas. Two produced violacein, usually synthesized by bacteria belonging to the genus Chromobacterium. Their taxonomic position is discussed. I N T R O D U C T I O NMany marine bacteria release antibacterial substances into culture media. These substances inhibit various terrestrial and in particular Gram-positive bacteria. , 1971) and the Baltic Sea (Bonde, 1968). They have been isolated from most marine biotopes, including surface or deep waters, immersed substrates, surface of seaweeds, and fine or rough sediments, and have been identified as species of Bacillus, Micrococcus, Pseudomonas, Vibrio, Flavobacterium, Alcaligenes, Xanthomonas and Achromobacter.Bacteria isolated from reasonably unpolluted Mediterranean coastal waters near Nice are characterized by the macromolecular and polysaccharide nature of their antibacterial substance and by the mechanism of their inhibition of terrestrial bacteria, mainly Gram-positive species but also a few Gram-negative ones such as Klebsiella spp. and Escherichiu spp. (Gauthier, 1970). Seasonal variations in the numbers of such bacteria within neritic heterotrophic bacterial populations over two successive years (1969-1 970) are reported, together with their morphological, physiological and biochemical characters.

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“…Samples (0.1 ml) of either undiluted water or decimal dilutions of it were surface-plated in quadruplicate on modified ZoBell's medium (Anderson, 1962). Inoculated plates were incubated at 16" which was the closest available to the temperature of the water in the tanks (Scholes & Shewan, 1964). All plates were incubated for 5 days before colonies were counted on those showing 30-300 colonies.…”

Section: Estimation Of Bacterial Numbersmentioning

confidence: 99%