Character of interactions of saprophytic soil microflora via gaseous metabolites

Сидоренко, М. Л.; Бузолева, Л. С.

doi:10.1134/s0026261708020185

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…Li et al (2008) asserted that sesquiterpenes might originate from decaying needle litter or fungal hyphae. Our results also revealed that elevated sesquiterpene levels and/or new sesquiterpenes might be produced and consumed by microbial activity in soils (Schade andCuster 2004, Sidorenko andBuzoleva 2008), and may have occurred as the result of litter-fall inputs from the aboveground needle parts, as was suggested previously by Asensio et al (2008). Kim et al (2006) previously conducted a study of monoterpene concentrations in litterbags over a oneyear period.…”

Section: Compounds Retention Timesupporting

confidence: 78%

Changes in terpenes of three kinds of pine needles during litter decomposition

Jo¹,

Kim²

2010

J. Ecol. Environ.

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This study was designed to evaluate changes in the terpene composition of 3 types of pines (Pinus densiflora, Pinus thunbergii and Pinus rigida), while decomposing their leaf litter. Needle litters were placed at two different organic layer depths, one on the surface and the other beneath the litter layer. Changes in the terpene composition of this litter were detected using a gas chromatograph-mass spectrometer. Among the monoterpenes acquired from the fresh needles of P. densiflora and P. rigida, α-pinene (12.05% and 19.87%, respectively) was the major one, followed by β-pinene (2.90% and 14.07%). However, from the needles of P. thunbergii, β-pinene (20.77%) was the major one, followed by α-pinene (10.79%). Among the sesquiterpenes detected in P. densiflora, trans-caryophyllene (3.12%) was the highest composition compound, whereas germacrene-D (6.09%) for P. thunbergii and 1,6-cyclodecadiene (7.41%) and endo-1-bourbonanol (7.41%) for P. rigida were the highest content compounds. However, the total amounts of terpenes decreased sharply by 40-85.4% in all three types of pine needle after 90-120 days of the experiment. The concentration of each terpene differed during decomposition, and the majority of compounds disappeared from beneath the litter layer. It was determined that three types of reducing patterns of each compound appeared on the rate of loss of concentration during decomposition; one pattern decreasing sharply during the initial period, another pattern steadily or slowly decreasing, and a newly detected pattern at low concentration occurring during decomposition.

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Section: Compounds Retention Timesupporting

confidence: 78%

Changes in terpenes of three kinds of pine needles during litter decomposition

Jo¹,

Kim²

2010

J. Ecol. Environ.

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“…Thus, the study of vital activity regulation of soil microorganisms is one of the general problems of soil microbiology. The existence of microorganisms in a natural area is determined by other organisms and environmental conditions [1][2][3][4]. One of the factors influencing the existence and reproduction of bacteria in terrestrial ecosystems is fertilizers introduced into the soil.…”

Section: Introductionmentioning

confidence: 99%

“…Some authors have noted a significant increase in biogenesis and intensity of microbiological processes in soil with the introduction of manure, basic types of mineral fertilizers (NPK) and lime [2,[6][7][8][9][10]. The literature data on the influence of fertilizers on soil microflora are controversial.…”

Section: Introductionmentioning

confidence: 99%

The effect of mineral fertilizers on reproduction of soil saprophytic bacteria

Сидоренко

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The study of vital activity regulation of soil microorganisms is one of the general problems of soil microbiology. One of the factors influencing the existence and reproduction of bacteria in terrestrial ecosystems are fertilizers introduced into the soil. The effect of mineral fertilizers on the reproduction of bacterial complexes in soils of diverse types at different temperatures (4 ° C and 20 ° C) was studied. Mineral fertilizing promotes the active reproduction of saprophytic bacteria in calcaric cambisol (CCS) and distric cambisol soils (DCS). The variants with fertilizers can be arranged according to their effect on the reproduction of saprophytic bacteria in following order, regardless of the soil type: soil with nitric fertilizer > soil with phosphoric fertilizers > soil with potash fertilizer. Introduction of nitric or phosphoric fertilizers at 20 °C was more successful in CCS. It was found that application of mineral fertilizers positively affects the conservation and reproduction of bacteria in soils of diverse types. Prolonged application of mineral fertilizers reveals a positive effect on bacterial complexes, regardless of the soil type.

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