Nitrogen-fixing blue-green algae in acid forest and nursery soils

Jürgensen, Martin F.; Davey, C. B.

doi:10.1139/m68-198

Cited by 41 publications

(20 citation statements)

References 8 publications

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“…Similar results were obtained for climax forest soils by Rosa (1962), Jurgensen & Davey (1968), King & Ward (1977), Aleksachina & Stina (1984), and Antipina (1986) and in soils of secondary succession stages (Hunt et al 1979;Luke~ov~i 1993). Similar results were obtained for climax forest soils by Rosa (1962), Jurgensen & Davey (1968), King & Ward (1977), Aleksachina & Stina (1984), and Antipina (1986) and in soils of secondary succession stages (Hunt et al 1979;Luke~ov~i 1993).…”

Section: Discussionsupporting

confidence: 79%

Soil algae from acid rain impacted forest areas of the Krušné hory Mts. 1. Algal communities

Lukešová

Hoffmann

1996

Vegetatio

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The soil algal communities of forested and reforested, limed and unlimed plots were compared in the acid rain impacted Krugn6 hory Mountains. The floristic composition of unlimed plots is similar to that found in acid forest soils with a naturally low pH and no effect of the acid rain on these communities can be detected. Chlorophyceae are the only group present in these soils. In limed areas with a higher soil pH, algal diversity is significantly increased while algal densities remain similar. Chlorophyceae, while still the dominant group, are accompanied in these soils by Bacillariophyceae, Xanthophyceae, Eustigmatophyceae and Cyanophyceae. Total vegetation cover and thus light hitting the soil surface seems to be most important in determining the algal biomass.

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Section: Discussionsupporting

confidence: 79%

Soil algae from acid rain impacted forest areas of the Krušné hory Mts. 1. Algal communities

Lukešová

Hoffmann

1996

Vegetatio

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“…Similar effects of soil fertility and pH on the occurrence of blue-green algae have been found in other soil habitats (Shields & Durrell, 1964;Jurgensen & Davey, 1968;Shtina et al 1968).…”

Section: Discussionsupporting

confidence: 69%

“…For isolation of nitrogen-fixing blue-green algae the soil enrichment method described by Allen & Stanier (1968) and the dilution-plate method described by Jurgensen & Davey (1968) were used.…”

Section: Isolation Of Possible Nitrogen-fixing Organismsmentioning

confidence: 99%

Non-symbiotic Nitrogen-fixing Organisms from Some New Zealand Tussock-grassland Soils

Line

Loutit

1971

Journal of General Microbiology

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SUMMARYThe screening of several hundred isolates from tussock-grassland soils for nitrogen-fixing ability resulted in the isolation of Clostridium butyricum and five facultatively anaerobic nitrogen-fixing species. These latter have been identified as Bacillus circulans (tentative identification), B. polymyxa, Enterobacter aerogenes (formerly Aerobucter aerogenes), Klebsiella pneumoniae and Escherichia intermedia.Estimates of numbers of these species indicate that they will be responsible for only very low rates of nitrogen fixation in the soils tested.

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“…The bluegreen algae are known to be intolerant of low pH conditions (Lund 1962, Jurgensen and Davey 1968, Bold 1970, Brock 1973, Dooley and Houghton 1973 and lower cyanophyte numbers in the forest may reflect this characteristic. The summer decline in pH could be responsible for the summer decrease in bluegreen numbers.…”

Section: Soil Algae-quantitative Changesmentioning

confidence: 99%

Soil Algae in Field and Forest Environments

Hunt¹,

Floyd²,

Stout³

1979

Ecology

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. Ecological Society of America is collaborating with JSTOR to digitize, preserve and extend access to Ecology.Abstract. The prokaryotic and eukaryotic algal components of soil were quantified and identified generically over a 17-mo period in 2 successional fields and a climax forest. A correlation of the quantitative and qualitative changes was sought with other biological components (bacteria, actinomycetes and fungi) and major chemical and physical parameters. The highest counts obtained for the eukaryotic algae were 3.3 x 107, 2.2 x 107, and 1.2 x 105 cells/g soil for a 1-yr old field, an 11-yr old field and the forest, respectively. The highest counts obtained for the prokaryotic (bluegreen) algae were 8.2 x 105, 2.3 x 105 and 1.6 x 104 cells/g soil for the same sites. The total number of algae in all 3 sites declined during the summer. There was no further decline in winter. The greatest number of algal genera was found in the 1-yr old field, 28 of a total 35 isolated or 80%o; fewer were observed in the 11-yr old field and the forest, 57% and 63%, respectively.A predictive model for numbers of soil algae was formed by multiple regression analysis. The significant factors that showed a relationship with the bluegreen algae were pH, time, Mg, precipitation and the eukaryotic algae, R2 = 45%; significant factors with the eukaryotic algae were time, Mg and the bluegreen algae, R2 = 37%. Prediction equations were tested against additional data with success.

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Nitrogen-fixing blue-green algae in acid forest and nursery soils

Cited by 41 publications

References 8 publications

Soil algae from acid rain impacted forest areas of the Krušné hory Mts. 1. Algal communities

Soil algae from acid rain impacted forest areas of the Krušné hory Mts. 1. Algal communities

Non-symbiotic Nitrogen-fixing Organisms from Some New Zealand Tussock-grassland Soils

Soil Algae in Field and Forest Environments

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