Pristine soils mineralize 3-chlorobenzoate and 2,4-dichlorophenoxyacetate via different microbial populations

Article Abstract:

Microbial populations in uncontaminated soils can degrade 3-chlorobenzoate (3CBA), a bacterial metabolic product of polychlorinated biphenyls, and 2,4-dichlorophenoxyacetate (2,4-D), a common herbicide. The distribution and culturability of the bacteria that degrade are different, indicating that different microorganisms degrade the different substrates. Microorganisms that mineralize 3CBA are more widespread and they are easily isolated from many soils. The degraders of 2,4-D however, are fewer and their isolation is more difficult.

Polychlorinated biphenyls, Biodegradation, Soil microbiology, Herbicides

---

Criteria and methodology for identifying respiratory denitrifiers

Article Abstract:

A new, simple method helps evaluate the two vital criteria that must be met to claim respiratory denitrification by bacteria. Experimental data suggest a linear relation between nitrate levels and net protein production for all denitrifiers. Rate of N2 gas production can be used as an additional criterion for respiratory denitrification. Groups that reduce nitrate or generate N2O are distinguished from respiratory denitrifiers using these criteria.

Analysis, Identification and classification, Microbiology, Taxonomy (Biology), Microbial respiration, Bacteria, Nitrifying, Nitrobacteraceae

---

Species abundance and diversity of Burkholderia cepacia complex in the environment

Article Abstract:

A colony of hybridization assay was developed to detect and describe the ecology and diversity of Burkholderia cepacia complex from environmental samples. The results indicate that not only complex communities of B. cepacia complex species and closely related strains of the same species may coexist at high population levels but also species composition and abundance may dramatically change between individual plants.

Science & research, Environmental aspects, Biological diversity, Biodiversity, Hybridization, Vegetable, Hybrid plants, Ipecac (Plant)

Similar abstracts:

• Abstracts: Biodegradation of benzene by halophilic and halotolerant bacteria under aerobic conditions. Bacterial diversity and function of aerobic granules engineered in a sequencing batch reactor for phenol degradation
• Abstracts: Genetic consequences of many generations of hybridization between divergent copepod populations. European mink-polecat hybridization events: Hazards from natural process?
• Abstracts: Phylogeny and life histories of the 'insectivora': Controversies and consequences. Environments and evolution: Interactions between stress, resource inadequacy and energetic efficiency
• Abstracts: Implication of membrane localization of target mRNA in the action of a small RNA: Mechanism of post-transcriptional regulation of glucose transporter in Escherichia coli
• Abstracts: A linkage map for the hybridising toads Bombina bombina and B. variegata (Anura: Discoglossidae). Mating patterns in a hybrid zone of fire-bellied toads (Bombina): Inferences from adult and full-sib genotypes

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.