Evidence for microfloral succession on allochthonous plant litter in Apalachicola Bay, Florida, USA

Morrison, Susan J.; King, John D.; Bobbie, Ronald J.; Bechtold, R. E.; White, David C.

doi:10.1007/bf00394909

Cited by 63 publications

(55 citation statements)

References 32 publications

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“…Studies of the microbial colonization of plant detritus in aquatic environments typically indicate that fungal biomass is highest during the initial weeks of submergence, whereas bacterial biomass is initially low and increases steadily during the decay process (Federle and Vestal 1982;Lee et al 1980;Suberkropp and Klug 1976), although in several studies bacteria were found to be the primary colonizers of plant detritus (Morrison et al 1977;Newell 198 1;Rublee and Roman 1982). Results of experiments using antibiotics to determine the relative contributions of procaryotes and eucaryotes to the biodegradation of plant material under aquatic conditions also indicate that fungi seem to be relatively more important during the early stages of decomposition, bacteria during the latter stages of decomposition (Kaushick and Hynes 197 1;Mason 1976).…”

mentioning

confidence: 99%

Biogeochemical cycling of lignocellulosic carbon in marine and freshwater ecosystems: Relative contributions of procaryotes and eucaryotes1

Benner

Moran

Hodson

1986

Limnology & Oceanography

181

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The relative contributions of procaryotes and eucaryotes to the degradation of the lignin and polysaccharide components of lignocellulosic detritus in two marine and two freshwater wetland ecosystems were determined. Two independent methods-physical separation of bacteria from fungi and other eucaryotes by size fractionation, and antibiotic treatments-were used to estimate procaryotic and eucaryotic contributions to the degradation of [14C-lignin]lignocelluloses and [14C-polysaccharidellignocelluloses in samples of water and decaying plant material from each environment. Both methods yielded similar results; bacteria were the predominant degraders of lignocellulose in each of the aquatic ecosystems. Fungi and other eucaryotes contributed only minimally to the overall degradation of lignocellulose in both marine ecosystems and in the Okefenokee Swamp but did contribute significantly to the degradation of lignocellulose in the Big Cypress Swamp. These results indicate a basic difference between the microbial degradation of Iignocellulosic material in terrestrial and aquatic environments. Fungi have long been considered the predominant degraders of lignocellulose in terrestrial systems; our results indicate that in aquatic systems bacteria are the predominant degraders of lignocellulose.

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mentioning

confidence: 99%

Biogeochemical cycling of lignocellulosic carbon in marine and freshwater ecosystems: Relative contributions of procaryotes and eucaryotes1

Benner

Moran

Hodson

1986

Limnology & Oceanography

181

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“…Christian et al, 1975) or constituents of procaryotic cell walls such as muramic acid (e.g. Morrison et al, 1977). This paper reports the results of a 13-month study of the standing crop of bacteria in a salt marsh and comparisons with both the microalgal and total microbial biomass.…”

Section: Introductionmentioning

confidence: 99%

“…Bacteria are a key component of the detrital microbial community because of their rapid colonization and high metabolic activity in association with detrital material (Fenchel & Jørgensen, 1977;Morrison et al, 1977;Rublee, 1978). Few studies have looked at the bacteria directly, however, and most of our information on standing crop is from indirect estimates of the total microbial biomass from measurement of ATP (e.g.…”

Section: Introductionmentioning

confidence: 99%

Seasonal distribution of bacteria in salt marsh sediments in North Carolina

Rublee

1982

Estuarine, Coastal and Shelf Science

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Abstract:The number and size of bacteria at four depths (0-1, 5-6, 10-11, and 20-21 cm) in a North Carolina salt marsh were minotored by direct counts for 13 months. The number of bacteria reached a maximum of about 1•4 × 10 10 cells cm -3 at the sediment surface in October, corresponding to the period of Spartina alterniflora die-back. Cell numbers were lowest and most consistent throughout the year at the 20 cm depth of sediment. Cell volumes averaged 0•2 μm 3 at the marsh surface and decreased with depth. Mean standing crop of bacteria to a depth of 20 cm of sediment was about 14 g bacterial carbon m -2 . In surface sediments bacteria contribute up to 15% and algae up to 10% of total living microbial biomass as estimated by adenosine triphosphate (ATP). Bacteria were the major biomass component at sediment depths of 5, 10 and 20 cm. At all depths the microbial community contributes < 4% total organic carbon and < 8 % of total nitrogen.

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“…Maystrenko et at., 1969;Olah, 1972;lJlehlovli, 1976;Morrison et al, 1977;Chamier & Dixon, 1982;Federle & Vestal, 1982). Bacteria are typically first to colonize, and their numbers increase rapidly after a few days.…”

Section: Decomposer Organismsmentioning

confidence: 98%

Vegetative succession and decomposition in reservoirs

Godshalk

Barko²

1985

Microbial Processes in Reservoirs

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Abstract. Vegetative succession and decomposition in reservoirs are examined. Information is summarized on vegetative tolerance to inundation, subsequent aquatic plant succession, sources of detritus, factors affecting the rate and extent of decomposition, organisms involved in decomposition, the sequence of decomposition, and the effects of decomposition on water quality. The processes of vegetative succession and decomposition in reservoirs are essentialy the same as those occurring in natural lakes. Succession is hastened in reservoirs compared with natural lakes by greater watershed loadings and proportionately greater inputs of refractory detritus. The lifespan of reservoirs is relatively limited and will depend on several factors such as basin morphometry, flushing rate, and site preparation which interact to control rates of production and decomposition.

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Evidence for microfloral succession on allochthonous plant litter in Apalachicola Bay, Florida, USA

Cited by 63 publications

References 32 publications

Biogeochemical cycling of lignocellulosic carbon in marine and freshwater ecosystems: Relative contributions of procaryotes and eucaryotes1

Biogeochemical cycling of lignocellulosic carbon in marine and freshwater ecosystems: Relative contributions of procaryotes and eucaryotes1

Seasonal distribution of bacteria in salt marsh sediments in North Carolina

Vegetative succession and decomposition in reservoirs

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