Studies on soil fumigation—II: Effects on bacteria
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Cited by (69)
Effect of fumigation with chloropicrin on soil bacterial communities and genes encoding key enzymes involved in nitrogen cycling
2017, Environmental PollutionCitation Excerpt :Furthermore, following fumigation, the relative abundance of well-known representative denitrification populations, such as Bacillus spp. and Pseudomonas spp, significantly increased. These findings are in agreement with results produced from traditional agar plating conducted by Ridge (1976). After the addition of nitrogenous fumigants, denitrification populations that utilize the terminal breakdown products of CP as nitrogen sources have been shown to flourish (Dungan and Yates, 2003).
Interaction between nitrification, denitrification and nitrous oxide production in fumigated soils
2015, Atmospheric EnvironmentCitation Excerpt :Pic and DZ are easily degraded to small molecular nitrogen containing metabolites under various soil conditions, and soil microorganisms such as Bacillus spp. and Pseudomonas spp. are responsible for Pic and DZ biodegradation (Castro et al., 1983; Dungan and Yates, 2003). In particular, Pseudomonas sp. flourished following Pic fumigation (Ridge, 1976). In addition, Bacillus spp. and Pseudomonas spp. have high denitrification activity (Kim et al., 2005; Takaya et al., 2003) and the breakdown products of these two fumigants would be available for microbial-aided denitrification reactions as nitrogen sources leading to N2O production, indicating that Pic and DZ degradation stimulated denitrification activity responsible for soil N2O production.
Root-lesion nematode (Pratylenchus thornei) reduces nutrient response, biomass and yield of wheat in sorghum-fallow-wheat cropping systems in a subtropical environment
2012, Field Crops ResearchCitation Excerpt :Upon fumigation, populations of bacteria, actinomycetes and fungi are severely reduced. However, surviving bacteria, especially fluorescent pseudomonads rapidly multiply by utilising the killed microbial biomass as substrate (Ridge, 1976), resulting in populations considerably higher than pre-fumigation levels. This ‘partial sterilisation effect’ is accompanied by increased soil respiration and mineralisation of organic N and phosphorus.
Effects of soil fumigants on methanotrophic activity
2007, Atmospheric Environment