Manipulation of soil microbial community structure in bog and forest soils using chloroform fumigation

Dickens, H.E.; Anderson, J. M.

doi:10.1016/s0038-0717(99)00128-5

Cited by 41 publications

(20 citation statements)

References 24 publications

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“…Fungi were not detected in this present study. These observations are also in agreement with most findings, which demonstrate that chloroform can effectively kill (94% to 99%) microorganisms (Jenkinson & Powlson, 1975;Ingham & Horton, 1987;Dickens & Anderson, 1999). The effectiveness of the fumigation is supported by the decrease in the mean soil microbial biomass carbon (Table 3).…”

Section: Soil N 2 O Emissionsupporting

confidence: 90%

Nitrous Oxide Emission of a Tropical Peat Soil Grown with Pineapple at Saratok, Malaysia

Choo¹,

Ahmed²

2017

SAR

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Draining of peatland for agriculture could affect the release of nitrous oxide into the atmosphere. Presently, there is dearth of information on soil nitrous oxide emission from tropical peat soils cultivated with pineapples. Lysimeter and closed chamber methods were used to quantify nitrous oxide emission from root respiration, microbial respiration, and oxidative peat decomposition under controlled water table condition. Treatments evaluated were: peat soil grown with pineapple, uncultivated peat soils, and bare peat soil fumigated with chloroform. Cultivation of Moris pineapple on drained peat soils resulted in the higher release of nitrous oxide emission (15.7 t N 2 O ha/yr), followed by fumigated peat soil with chloroform (14.3 t N 2 O ha/yr), and uncultivated peat soil (10.2 t N 2 O ha/yr). Soil nitrous oxide emission was affected by nitrate fertilization but emission was not affected by soil temperature nor soil moisture.

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Section: Soil N 2 O Emissionsupporting

confidence: 90%

Nitrous Oxide Emission of a Tropical Peat Soil Grown with Pineapple at Saratok, Malaysia

Choo¹,

Ahmed²

2017

SAR

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“…The answer may depend on the cause and severity of the perturbation. Although a number of studies using PLFA, DGGE and tRFLP methods have documented changes in microbial diversity due to fumigants and pesticides (Malcomes, 1995;Zelles et al, 1997;Engelen et al, 1998;Macalady et al, 1998;Dickens and Anderson, 1999;Ibekwe et al, 2001;Sigler and Turco, 2002). The majority of changes were relatively short lived with microbial populations tending to return to normal after a few weeks or months.…”

Section: Discussionmentioning

confidence: 99%

Effects of soil type and farm management on soil ecological functional genes and microbial activities

et al. 2010

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Relationships between soil microbial diversity and soil function are the subject of much debate. Process-level analyses have shown that microbial function varies with soil type and responds to soil management. However, such measurements cannot determine the role of community structure and diversity in soil function. The goal of this study was to investigate the role of gene frequency and diversity, measured by microarray analysis, on soil processes. The study was conducted in an agro-ecosystem characterized by contrasting management practices and soil types. Eight pairs of adjacent commercial organic and conventional strawberry fields were matched for soil type, strawberry variety, and all other environmental conditions. Soil physical, chemical and biological analyses were conducted including functional gene microarrays (FGA). Soil physical and chemical characteristics were primarily determined by soil textural type (coarse vs fine-textured), but biological and FGA measures were more influenced by management (organic vs conventional). Organically managed soils consistently showed greater functional activity as well as FGA signal intensity (SI) and diversity. Overall FGA SI and diversity were correlated to total soil microbial biomass. Functional gene group SI and/or diversity were correlated to related soil chemical and biological measures such as microbial biomass, cellulose, dehydrogenase, ammonium and sulfur. Management was the dominant determinant of soil biology as measured by microbial gene frequency and diversity, which paralleled measured microbial processes.

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“…Functional biodiversity in agroecosystems is an ecological key to sustainable production, and microorganisms have a fundamental importance in this process 2,80 . Soils that are poor in microorganisms exhibit a higher demand on fertilizers and synthetic addiction of nutrients, which besides increasing production cost, may also increase the risk of contamination of nearby natural environments.…”

Section: Functional Genesmentioning

confidence: 99%

Functional Genes of Microorganisms, Comprehending the Dynamics of Agricultural Ecosystems

Reali

Júnior

Meile

et al. 2017

Braz. arch. biol. technol.

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The microbial composition of different types,in ecosystems (including agro-ecosystems), has been investigated in a rapidly growing number of studies in the past few years. The importance of microorganisms, regarding the maintenance and stability of nutrients in agroecosystems, is a key to maintain the sustainability of a crop. Molecular tools to study microbial communities are possible through many methods such as RISA, DGGE, TGGE, clone libraries, T-RFLP, RAPD, SSCP and more recently NGS (Next-Generation Sequencing). DGGE is widely employed to characterize the diversity and the community dynamics of microorganisms in the environment

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Manipulation of soil microbial community structure in bog and forest soils using chloroform fumigation

Cited by 41 publications

References 24 publications

Nitrous Oxide Emission of a Tropical Peat Soil Grown with Pineapple at Saratok, Malaysia

Nitrous Oxide Emission of a Tropical Peat Soil Grown with Pineapple at Saratok, Malaysia

Effects of soil type and farm management on soil ecological functional genes and microbial activities

Functional Genes of Microorganisms, Comprehending the Dynamics of Agricultural Ecosystems

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