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Dzyuban, A. N.

doi:10.1023/a:1017910602635

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…Also, a high number of filamentous fungi found in sapropel-based substrate BDA is characteristic for peats (Hunter et al 2006). The number of aerobic heterotrophic bacteria found in both sapropel samples is within the range reported in the investigation about several lakes of Latvia (Dzyuban, 2002). In other studies using mud (sapropel) samples from various lakes in Latvia it has been found that sapropel from all lakes contained sulphate-reducing bacteria, heterotrophic, saprophytic and mesophilic bacteria (Silamiķele et al, unpublished results).…”

Section: Discussionsupporting

confidence: 76%

“…The level of bacterial load in freshwater lake sediments has been reported to be similarly high. The level of aerobic heterotrophic bacteria of several lakes of Latvia has been reported to be 0.09 to 22 × 10 6 cells cm -3 (Dzyuban, 2002). Other microbial groups represented in lake sediments are zoosporic fungi and yeasts (Wurzbacher et al, 2010).…”

Section: Effect Of Freshwater Sapropel On Plants In Respect To Its Grmentioning

confidence: 99%

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Effect of freshwater sapropel on plants in respect to its growth-affecting activity and cultivable microorganism content

Grantina-Ievina

Karlsons

Andersone-Ozola

et al. 2014

Zemdirbyste-Agriculture

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A positive effect of organic-rich sediments sapropels on plant growth has been suggested in general, but has not been proven on an experimental basis. The aim of the present investigation was to study biological activity of freshwater sapropel and its product including analyses of plant growth-affecting activity and cultivable microorganisms. Besides mineral nutrients, sapropel contained unspecified substances promoting plant growth in a seedling growth test with beetroot, Swedish turnip, carrot and tomato. Summed plant growth-affecting activity of sapropel and sapropel-containing substrate BioDeposit Agro had a relatively high growth-enhancing component together with an extremely low growth-inhibiting component. Substrate amendment with BioDeposit Agro resulted in a significant increase in dry matter accumulation only in lettuce plants but not in winter rye plants. High level of aerobic heterotrophic bacteria, high level of yeasts and variable level of filamentous fungi with a low diversity were found in all sapropel samples tested. Plant growth-stimulating activity negatively correlated with the number of colony forming units of both yeasts and fungi. There was no correlation between the number of bacteria and plant growth-stimulating activity.

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Section: Discussionsupporting

confidence: 76%

Section: Effect Of Freshwater Sapropel On Plants In Respect To Its Grmentioning

confidence: 99%

Effect of freshwater sapropel on plants in respect to its growth-affecting activity and cultivable microorganism content

Grantina-Ievina

Karlsons

Andersone-Ozola

et al. 2014

Zemdirbyste-Agriculture

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“…Such emission rates are not in contradiction with some other publications. For example, the methane production rate of 112 mgC CH 4 m −2 h −1 was detected in Baltic ponds as reported in Dzyuban (2002). Fluxes from thaw lakes at Chersky reach the rate of 300 mgC CH 4 m −2 h −1 according to reports by Walter et al (2006).…”

Section: Resultsmentioning

confidence: 69%

Regional methane emission from West Siberia mire landscapes

Glagolev

Kleptsova²,

Filippov³

et al. 2011

Environ. Res. Lett.

100

101

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Methane emissions from mires in all climate-vegetation zones of West Siberia (forest steppe, subtaiga, south taiga, middle taiga, north taiga, forest tundra and tundra) were measured using a static chamber method. The observed fluxes varied considerably from small negative values in forested bogs and palsa to hundreds of mgC m −2 h −1 in ponds and wet hollows. Observed data were consolidated in the form of the empirical model of methane emissions designated as the 'standard model'. The model is based on medians of CH 4 flux distributions of eight different micro-landscape types depending on their location and estimated duration of methane emission period within the climate-vegetation zone. The current version (Bc8) of the 'standard model' estimates methane flux from West Siberia mires at 2.93 ± 0.97 TgC CH 4 yr −1 that accounts for about 2.4% of the total methane emission from all mires or 0.7% of global methane emission from all sources.

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Microbial Processes of Methane Transformation in the Shallow-Water Zone of the Rybinsk Reservoir

Кузнецова

Dzyuban

2005

Microbiology

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Untitled

Cited by 7 publications

References 8 publications

Effect of freshwater sapropel on plants in respect to its growth-affecting activity and cultivable microorganism content

Effect of freshwater sapropel on plants in respect to its growth-affecting activity and cultivable microorganism content

Regional methane emission from West Siberia mire landscapes

Microbial Processes of Methane Transformation in the Shallow-Water Zone of the Rybinsk Reservoir

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