Qualitative and quantitative observations on green and yellow-green algae in some English soils

Broady, Paul A.

doi:10.1080/00071617900650171

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…Values for cell number varied from 5.85 X 10 8 to 5.19 x 10 10 cells/m 2 (5.85 x 10 4 to 5.19 x 10 6 cells/ cm 2 ), well within the range of previously reported soil algal densities, 1 x 10 3 to 1.2 x 10 7 cells/cm 2 (Broady 1979, Metting 1981).…”

Section: Algal Densitysupporting

confidence: 81%

Productivity and Density of Soil Algae in an Agricultural System

Shimmel¹,

Darley²

1985

Ecology

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Soil algal productivity and biomass were monitored in a conventional tillage agricultural system from December 1981 through December 1982. Productivity was based on the fixation rate of radiolabeled carbon dioxide. Biomass estimates (cell number and volume) were based on cell counts radiolabeled carbon dioxide. Biomass estimates (cell number and volume) were based on cell counts and measurements done with epifluoroscence microscopy. Algal productivity values (measured as carbon fixation) ranged from 0 to 76 mg°m—2°h—1, values for cell number ranged from 5.85 x 108 to 5.19 x 1010 cells/m2 and the volume of cells was between 34.8 and 7540 mm3/m2. Regression analysis indicates that algal productivity was most closely correlated with the product of cell number and light intensity, while a number of cells per square metre was most closely correlated with the product of temperature and moisture. The logarithm of the average volume per cell was inversely correlated with soil moisture and temperature. The percentage of algae present as aggregates was proportional to moisture and the square of temperature. Total annual productivity (as carbon) was estimated to be 39 g/m2.

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Section: Algal Densitysupporting

confidence: 81%

Productivity and Density of Soil Algae in an Agricultural System

Shimmel¹,

Darley²

1985

Ecology

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“…Since the algae were selected based on medium and culture conditions, and since resting cells such as autospores, akinetes which occur densely may appear as one colony (Fogg et al 1973;Starks et al 1981), it was reported that the soil algal density using the culture dilution method may be underestimated (Tchan and Whitehouse 1953;Broady 1979). On the other hand, as viable algal cells are continuously introduced into the air (Brown 1971;Coleman 1983), a sample may include algae which can grow only in vitro, but not in situ (Pandey 1964;Fogg et al 1973).…”

Section: Virgin Landmentioning

confidence: 99%

Distribution of soil algae in salinized irrigation land in the arid region of Central Asia

Tsujimura¹,

Nakahara²,

Kosaki³

et al. 1998

Soil Science and Plant Nutrition

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Distribution patterns of soil algae were investigated in a 14-year-old farm and its surroundings in the salinized irrigation land of Central Asia. Using a culture dilution method, the densities of five groups of soil algae, green colony group (composed of chlorophytes together with xanthophytes), Chroococcales, Oscillatoriales, Nostocales in the orders of blue-green algae, and diatoms, were estimated. The differences in the distribution patterns among the green colony group, the Oscillatoriales and the N ostocales attributed to soil salinity and soil moisture. As the green colony group was more sensitive to salinity than the blue-green algae, the density decreased at a relatively higher salinization level (EC>ca. 8 dS m-1). The blue-green algae, especially the Nostocales, were not affected by such degree of salinization. However, the nostocalean blue-green algae also could not occur in the further developing safinized part where salt crusts were observed. These results show that few soil algae occurring at the study site were able to adapt to the land with high salinity induced artificially. Around the sand dune where salt accumulation had never occurred, several species belong to the green colony group were dominant and few blue-green algae were observed. This observation suggests that these species had developed some strategies to tolerate water stress because this area was subjected to extremely dry conditions.

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“…Archaeplastida (Adl et al 2005)-mainly Chlorophyta and Streptophyta (Friedl and Rybalka 2012;Leliaert et al 2012)-represents a dominant group of the most soil types (Broady 1979b;Metting 1981;Hoffmann 1989;Megharaj et al 2000;Lukešová 2001;Zancan et al 2006;Trzcińska and Pawlik-Skowrońska 2008;Freeman et al 2009;Lin and Wu 2014). Stramenopila (Patterson 1989) are as well abundant in soils, represented by the classes Bacillariophyceae (Lukešová and Komárek 1987;Fermani et al 2007;Darienko 2012;Stanek-Tarkowska and Noga 2012), Xanthophyceae (Broady 1979b;Maltseva 2005b;2005a;Posrednikova et al 2009;Novis et al 2015) and Eustigmatophycae (Neustupa 2001;Khaybullina et al 2010;Darienko 2012;Scherbina et al 2014). Three further groups were sporadically recorded from soils: Excavata-Euglenophyta (Ashley et al 1985;Maltseva 2005a;Şalaru et al 2008;Lukešová et al 2010;, Alveolata-Dinophyta (Ettl and Gärtner 1995;Kutovaya et al 2012) and Cryptophyceae-incertae sedis (Paulsen et al 1992;Ettl and Gärtner 1995).…”

Section: Phylogenetic Diversity Of Soil Microalgaementioning

confidence: 99%

Green algae in soil: assessing their biodiversity and biogeography with molecular-phylogenetic methods based on cultures

Hodač¹

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Qualitative and quantitative observations on green and yellow-green algae in some English soils

Cited by 7 publications

References 11 publications

Productivity and Density of Soil Algae in an Agricultural System

Productivity and Density of Soil Algae in an Agricultural System

Distribution of soil algae in salinized irrigation land in the arid region of Central Asia

Green algae in soil: assessing their biodiversity and biogeography with molecular-phylogenetic methods based on cultures

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