Agro-Environmental Sustainability: Volume 2: Managing by Jay Shankar Singh, Gamini Seneviratne

By Jay Shankar Singh, Gamini Seneviratne

This two-volume paintings is a testomony to the expanding curiosity within the function of microbes in sustainable agriculture and meals safety. Advances in microbial applied sciences are explored in chapters facing themes comparable to plant-microbe interactions, rhizoremediation and cyanoremediation, and bio-immobilization. quantity II is a suite of analysis findings that invitations readers to ascertain the applying of microbes in pollutants relief, decontamination of agro- and aquatic ecosystems, and remediation of assorted poisonous compounds. hugely readable entries try and shut the data hole among soil microbial institutions and sustainable agriculture.

conventional agricultural administration options have relied seriously on program of chemical fertilizers and insecticides; and up to date land use swap practices have resulted in over exploitation of normal assets. suggestions defined right here simplify a sophisticated photograph of ways microbial groups can enhance the standard of surroundings and get rid of nutrients shortage within the coming generations. This paintings is an important contribution to investigate during this more and more vital self-discipline of soil sciences, and may attract researchers in microbiology, agriculture, environmental sciences, and soil and crop sciences.

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1977). Alkanes are hydroxylated mostly at the terminal and sub-­terminal positions, while ring hydroxylation of aromatics occurs primarily at the meta position. The sMMO oxygenates alkenes to epoxides with retention of stereochemistry around the C=C double bond (Smith and Murrell 2009). Chlorinated compounds that are degradable by MMOs include chloroform (Alvarez-Cohen and McCarty 1991a), trichloroethylene (Alvarez-Cohen and McCarty 1991a, b; Henry and Grbic-Galic 1990, 1991; Koh et al. 1993; Smith et al.

2010). Even though it exists in a strictly anoxic environment, M. oxyfera encodes, transcribes and expresses all genes involved in aerobic methane oxidation. It was hypothesised to produce oxygen required in methane oxidation via dismutation of nitric oxide to dinitrogen gas and oxygen (Ettwig et al. 2010). It may also be a novel pathway to achieve complete denitrification from nitrite, instead of traditional process that requires nitrous oxide reductase. Since its discovery, the ecology of M. oxyfera and n-damo process has been intensely studied.

Ammonium inhibition was a common assumption applied to various ecosystems, until Bodelier et al. (2000) observed ammonium-stimulated methane oxidation and methanotroph growth in rice paddy soils. Methanotrophs are significant contributors to nitrification in the rhizosphere of model microcosms associated with rice plants (Bodelier and Frenzel, 1999). Generally, the short-term use of ammonium-based fertilisers may initially prevent enzymatic methane oxidation, while the long-term use affects various populations of the soil microbial communities and can impact methane production or oxidation (Bodelier and Laanbroek 2004; Ho et al.

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