Comparative studies on metabolic activity of planktonic, benthic and epiphytic bacteria

Strzelczyk, E.; Mielczarek, Andrzej

doi:10.1007/bf00036794

Cited by 6 publications

(6 citation statements)

References 5 publications

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“…In previous studies the proportion of chromogens in mud samples was wide. Potter (1964) reported 14-39%, and Strzelczyk & Mielczarek (1971) studied 58 benthic bacteria, of which 45 were chromogens. However, Hayes & Anthony (1959) found pigmented bacteria so rarely in mud samples that they concluded that these bacteria were not part of the indigenous bacterial population.…”

Section: Discussionmentioning

confidence: 99%

“…The percentages of pigmented bacteria on Elodea canadensis and other aquatic macrophytes have been noted and are not consistent. They vary from 15-17% for Sagittaria blades (Odum 1957) to 43% for E. canadensis (Strzelczyk & Mielczarek 1971); Potter (1964) reported a wide range of percentages for epiphytes from a number of macrophytes in a pond. In the present study, the proportions of chromogens in the epiphytic population are shown to be influenced both by the nature of the bacterial population of the water and by the ages of the plant parts studied.…”

Section: Discussionmentioning

confidence: 99%

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Aerobic heterotrqphic bacteria isolated from water, mud, and macrophytes of Lake Grasmere, New Zealand

Ramsay

1977

New Zealand Journal of Marine and Freshwater Research

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Aerobic heterotrophic bacteria were isolated from the water, mud, Elodea canadensis, and concentrated plankton of Lake Grasmere in inland Canterbury (43° 05' S, 171° 45'E) at intervals between April 1969 and July 1971. The characteristics of 1567 isolates are described. The bacteria were assigned to the following groups: pseudomonads, pink-pigmented pseudomonads, Alcaligenes/ Achromobacter, flavobacteria, Cytophaga, Enterobacteriaceae, Aeromonas/Vibrio, Acinetobacter, Chromobacterium, coryneforms, Micrococcaceae, and Bacillus. In the water the predominant bacteria in most of the samples were pseudomonads, Alcaligenes/Achromobacter, flavobacteria, and coryneforms. The bacterial population varied from year to year but at any one time the bacteria isolated from different areas of the lake were similar. Three mud samples were examined: only 20% of the bacteria isolated from a sample from the surface of the mud were Gram-positive, but the other two samples from up to 5 cm deep in the mud included 49% and 74% Gram-positive bacteria. Elodea canadensis supported an epiphytic population, predominantly of pseudomonads and flavobacteria, which was more stable than the population in the water. Enterobacteriaceae and Aeromonas/Vibrio, although common at times in the water, were rarely isolated from E. canadensis. Bacteria were enumerated from samples of concentrated plankton as the numbers of algae and zooplankton fluctuated. Less than 17% of the colony-forming heterotrophic bacteria were in close association with the plankton. No particular group of bacteria became more common as the plankton populations died back.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Aerobic heterotrqphic bacteria isolated from water, mud, and macrophytes of Lake Grasmere, New Zealand

Ramsay

1977

New Zealand Journal of Marine and Freshwater Research

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“…In addition, it is thought that the solid-water interface is conducive to bacterial proliferation (5,16,17). Others report that microorganisms attached to particles have a higher metabolic activity than the planktonic counterparts (11,21,26). Recently, Kirchman and Mitchell, using [14C]glucose incorporation, found uptake values of particle-bound bacteria to be an order of magnitude higher than for free bacteria (Annu.…”

Section: Methodsmentioning

confidence: 99%

Enrichment and Association of Bacteria and Particulates in Salt Marsh Surface Water

Harvey

Young

1980

Appl Environ Microbiol

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Elevated counts of bacteria were found during outgoing tides in surface microlayers (-300 tm) of Sippewissett salt marsh, Falmouth, Massachusetts, and Palo Alto salt marsh, Palo Alto, California. At both sampling sites, the degrees by which bacteria were concentrated into the surface microlayer were linearly dependent upon surface concentration of particulate material. A significant percentage of bacteria in the microlayer were found to be attached to particulate

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“…23) Algae and protozoa can absorb and metabolize pesticides, 24) but bacteria and fungi contribute more to pesticide dissipation through their ubiquity. 3,8,18) Bacteria are more diversely populated, with their activity depending on the habitat, 25) while fungi tend to grow on a substratum, such as detritus, rather than in water. 26,27) Bacteria metabolize pesticides via various enzymatic reactions, 28) and extra-cellular enzymes such as laccases, 29) may participate in their fungal degradation.…”

Section: Processes Controlling Pesticide Behaviormentioning

confidence: 99%

“…showed the importance of these bacteria in the degradation of (2), also supported by the higher metabolic activities of epiphytic and benthic microbes toward sugars and carboxylic acids. 25) The presence of the whole plant or roots of Spartina alterniflora resulted in the 100-fold accelerated degradation of fenthion (43), with the enhancement stepwise decreasing by one order of magnitude when the outside and inside portions of its leaves were used, indicating the high activity of epiphytic bacteria. 47) Many epiphytic bacteria isolated from the surface of common reeds were found to efficiently degrade deltamethrin (38).…”

Section: Macrophytes and Biofilmmentioning

confidence: 99%

Aerobic microbial transformation of pesticides in surface water

Katagi

2013

J. Pestic. Sci.

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Aerobic transformation by microbial organisms is a dissipation process of pesticides in surface water, but the corresponding information is much less available as compared with their microbial degradation in soil. Bacteria freely floating in water or associated with suspended particles are the key microorganisms degrading pesticides; their species and populations, however, depend on sites and seasons. The various factors related to pesticide properties, experimental conditions and characteristics of surface water are involved in the complex control of microbial processes. Bottom sediment and macrophytes with associated biofilms not only act as sink for pesticides but also provide the habitat for both bacteria and fungi that degrade pesticides. More understanding of each factor is necessary to utilize laboratory biodegradation data for the refined assessment of pesticide behavior in surface water.

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Comparative studies on metabolic activity of planktonic, benthic and epiphytic bacteria

Cited by 6 publications

References 5 publications

Aerobic heterotrqphic bacteria isolated from water, mud, and macrophytes of Lake Grasmere, New Zealand

Aerobic heterotrqphic bacteria isolated from water, mud, and macrophytes of Lake Grasmere, New Zealand

Enrichment and Association of Bacteria and Particulates in Salt Marsh Surface Water

Aerobic microbial transformation of pesticides in surface water

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