Microarthropods as regulators of the communities of microscopic fungi and biological activity in the litter of a mixed forest

Кураков, А. В.; Давыдова, М. А.; Byzov, B. A.

doi:10.1134/s1064229306080060

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…This leads us to believe that the yeast strains used metabolize nitrogen compounds in the presence of oxygen without an anoxia phase. But we notice a low production of nitrite: This is in agreement with the work of Kurakov and Popov [33] who demonstrated that the use of yeasts in the degradation of nitrogenous compounds led to a reduction or absence of the production of nitrites. On the other hand, a high production of nitrates is observed [34,35,36].…”

Section: Methodssupporting

confidence: 92%

Biodegradation of Natural Rubber Wastewater in the Submerged Membrane Bioreactor by Pichia Guilliermondii and Yarrowia Lipolytica

Nsoe

Amba

Kameni

et al. 2023

IJMST

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Abstracts: Despite the many services that natural rubber provides to humanity, its production generates significant quantities of polluted effluents which have a negative impact on health and the environment. In order to reduce this pollution and allow water to be reused after treatment, a synthetic effluent treatment trial was carried out in a submerged membrane bioreactor in the presence of two strains of yeast (Yarrowia lipolytica, Pichia guilliermondii) and biodegradation parameters (COD, NH4+, NO2-, NO3-) were followed. The Mohlman Index (MI), the particle size distribution, the Lowry method for proteins and the Dubois method for sugars have made it possible to characterize the sludge generated during biodegradation. It appears from these experiments that the reduction rate of COD was 98% and that of nitrification and denitrification 90%. There is a decreasing linear relationship between the MI and SS (Suspended Solids) with an R2 of 95%. The distribution of the particle size of the sludge is tri-modal with a maximum of sludge having an average size of 1000 µm. The sludge formed resists filtration with a polysaccharide/protein ratio of 0.45.

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Section: Methodssupporting

confidence: 92%

Biodegradation of Natural Rubber Wastewater in the Submerged Membrane Bioreactor by Pichia Guilliermondii and Yarrowia Lipolytica

Nsoe

Amba

Kameni

et al. 2023

IJMST

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“…The role of microorganisms (chro mogenic coryneform and psychrophilic bacteria and some other groups) in preparing the substrate for col onization by invertebrates and plants was also shown for cinder and ash fields formed after volcanic erup tions [27]. As is known, microorganisms not only change the habitat for the soil invertebrates but are also involved in trophic interactions with them [7,12,28].…”

Section: Discussionmentioning

confidence: 99%

Secondary successions of biota in oil-polluted peat soil upon different biological remediation methods

et al. 2015

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The effects of different bioremediation methods on restoration of the oil polluted peat soil (His tosol) in the northernmost taiga subzone of European Russia was studied. The population dynamics of micro organisms belonging to different trophic groups (hydrocarbon oxidizing, ammonifying, nitrifying, and oli gonitrophilic) were analyzed together with data on the soil enzyme (catalase and dehydrogenase) activities, population densities of soil microfauna groups, their structures, and states of phytocenoses during a seven year long succession. The remediation with biopreparations Roder composed of oil oxidizing microorgan isms-Roder with Rhodococcus rubber and R. erythropolis and Universal with Rhodotorula glutinis and Rhodococcus sp.-was more efficient than the agrochemical and technical remediation. It was concluded that the biopreparations activate microbiological oil destruction, thereby accelerating restoration succession of phytocenosis and zoocenosis. The succession of dominant microfauna groups was observed: the dipteran larvae and Mesostigmata mites predominant at the early stages were replaced by collembolans at later stages. The pioneer oribatid mite species were Tectocepheus velatus, Oppiella nova, Liochthonius sellnicki, Oribatula tibialis, and Eupelops sp.

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“…Importantly, the nitrogen content of collembolan eggs is largely derived from body reserves, not diet, providing another potential source for the observed increase in soil nitrogen [21]. Finally, collembolans can increase N-fixation by interacting with free-living N-fixers that are abundant in soil systems [17]. The presence of predators or their cues may have reduced these nitrogen inputs by consuming individuals or changing detritivore behaviour [6], metabolic rate [21], assimilation efficiency [23] or reducing reproductive inputs.…”

Section: Discussionmentioning

confidence: 99%

“…Collembola are frequently consumed by wolf spiders, and can alter soil carbon and nutrient dynamics [14,15]. Specifically, collembolans can increase CO 2 flux [14,16,17] and soil nitrogen [14,17,18], so we predicted that interactions between predators and detritivores & 2014 The Author(s) Published by the Royal Society. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Fear of predation alters soil carbon dioxide flux and nitrogen content

Sitvarin

Rypstra

2014

Biol. Lett.

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Predators are known to have both consumptive and non-consumptive effects (NCEs) on their prey that can cascade to affect lower trophic levels. Non-consumptive interactions often drive these effects, though the majority of studies have been conducted in aquatic-or herbivory-based systems. Here, we use a laboratory study to examine how linkages between an aboveground predator and a detritivore influence below-ground properties. We demonstrate that predators can depress soil metabolism (i.e. CO 2 flux) and soil nutrient content via both consumptive and non-consumptive interactions with detritivores, and that the strength of isolated NCEs is comparable to changes resulting from predation. Changes in detritivore abundance and activity in response to predators and the fear of predation likely mediate interactions with the soil microbe community. Our results underscore the need to explore these mechanisms at large scales, considering the disproportionate extinction risk faced by predators and the importance of soils in the global carbon cycle.

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Microarthropods as regulators of the communities of microscopic fungi and biological activity in the litter of a mixed forest

Cited by 5 publications

References 8 publications

Biodegradation of Natural Rubber Wastewater in the Submerged Membrane Bioreactor by Pichia Guilliermondii and Yarrowia Lipolytica

Biodegradation of Natural Rubber Wastewater in the Submerged Membrane Bioreactor by Pichia Guilliermondii and Yarrowia Lipolytica

Secondary successions of biota in oil-polluted peat soil upon different biological remediation methods

Fear of predation alters soil carbon dioxide flux and nitrogen content

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