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Titolo:
Bioaugmentation of soils by increasing microbial richness: missing links
Autore:
Dejonghe, W; Boon, N; Seghers, D; Top, EM; Verstraete, W;
Indirizzi:
Lab Microbial Ecol & Technol, Ghent, Belgium Lab Microbial Ecol & TechnolGhent Belgium ol & Technol, Ghent, Belgium
Titolo Testata:
ENVIRONMENTAL MICROBIOLOGY
fascicolo: 10, volume: 3, anno: 2001,
pagine: 649 - 657
SICI:
1462-2912(200110)3:10<649:BOSBIM>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
16S RIBOSOMAL-RNA; 2,4-DICHLOROPHENOXYACETIC ACID 2,4-D; BRADYRHIZOBIUM-JAPONICUM STRAINS; BACTERIAL COMMUNITY STRUCTURE; GRADIENT GEL-ELECTROPHORESIS; ATRAZINE-CONTAMINATED SOIL; PSEUDOMONAS-FLUORESCENS; NUTRITIONAL-STATUS; SEWAGE-SLUDGE; PLASMID PJP4;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
100
Recensione:
Indirizzi per estratti:
Indirizzo: Verstraete, W Lab Microbial Ecol & Technol, Ghent, Belgium Lab Microbial Ecol & Technol Ghent Belgium Ghent, Belgium
Citazione:
W. Dejonghe et al., "Bioaugmentation of soils by increasing microbial richness: missing links", ENVIRON MIC, 3(10), 2001, pp. 649-657

Abstract

It is generally assumed that increased microbial diversity corresponds to increased catabolic potential and, hence, to better removal of metabolites and pollutants. Yet, microbial diversity, more specifically richness of species in environmental samples and sites, is difficult to assess. It is proposed to interpret this diversity more in the framework of Pareto's law, i.e. 20% of the species govern 80% of the energy flux of the ecosystem. Ecological studies should attempt to delineate the main energy fluxes and that group of species playing quantitative key roles in the system. Consequently, bioaugmentation should aim at the rearrangement of the group of organisms dominantly involved in the overall energy flux, so that specific catabolic traits necessary for the clean up of pollutants are part of that active group. For soil ecosystems, the capacity of plant roots as creators of physicaland chemical discontinuity should be used more strategically to bring about such rearrangements. Overall, this paper identifies a number of ecological concepts, such as the Pareto law, the Gompertz model and plant community-induced microbial competence, which may, given careful underpinning, open new perspectives for microbial ecology and biodegradation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 02:29:28