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Tiny acts of microbe justice help reveal how nature fights freeloaders

By Guest PostJanuary 16, 2014Sciencebacteria vibrio cholerae, bioremediation, biosphere, bonnie bassler, carey nadell, fights freeloaders, history, howard stone, industrial cleanup, infection, knut drescher, life on earth, mechanism, microbe, nitrogen containing molecules, princeton university, public goods dilemma, recycle, tiny acts, treating a disease, v cholera

The idea of everyone in a community pitching in is so universal that even bacteria have a system to prevent the layabouts of their kind from enjoying the fruit of others’ hard work, Princeton University researchers have discovered.

Groups of the bacteria Vibrio cholerae deny loafers their unjust desserts by keeping the food generated by the community’s productive members away from V. cholerae that attempt to live on others’ leftover nutrients, the researchers report in the journal Current Biology. The researchers found that individual bacteria produce a thick coating around themselves to prevent nutrients from drifting over to the undeserving. Alternatively, the natural flow of fluids over the surface of bacterial communities can wash away excess food before the freeloaders can indulge. (more…)

Berkeley Lab Researchers Create First of Its Kind Gene Map of Sulfate-reducing Bacterium: Work Holds Implications for Future Bioremediation Efforts

By Guest PostNovember 13, 2011Environment, Scienceadam arkin, aindrila mukhopadhyay, anaerobic bacterium, bacteria, berkeley lab, biofouling, bioremediation, d vulgaris, dap chip, department of energy, desulfovibrio vulgaris, dna affinity purified chip, doe, ecological niches, Environment, environmental signals, eric luning, five senses, generate enzymes, genetic secrets of a bacterium, genomic dna, how bacteria respond to environmental changes, lara rajeev, lawrence berkeley national laboratory, mapping of the genes, microbial systems, model organism, molecular signaling systems, morgan price, network of a microbe, new gene map, non hazardous forms, oil drilling, paramvir dehal, potential for removing toxic and radioactive waste, researchers, sight, smell, sound, sulfate reducing bacteria, sulfate reducing bacterium, taste, touch, toxic heavy metals and radioactive nuclides

Critical genetic secrets of a bacterium that holds potential for removing toxic and radioactive waste from the environment have been revealed in a study by researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab). The researchers have provided the first ever map of the genes that determine how these bacteria interact with their surrounding environment.

“Knowing how bacteria respond to environmental changes is crucial to our understanding of how their physiology tracks with consequences that are both good, such as bioremediation, and bad, such as biofouling,” says Aindrila Mukhopadhyay, a chemist with Berkeley Lab’s Physical Biosciences Division, who led this research. “We have reported the first systematic mapping of the genes in a sulfate-reducing bacterium – Desulfovibrio vulgaris – that regulate the mechanisms by which the bacteria perceive and respond to environmental signals.” (more…)

Yale Students’ Trip to Rainforest Yields New Way to Degrade Plastic

By Guest PostAugust 7, 2011EnvironmentAmazon rainforest, biological activity, bioremediation, degrade polyurethane, endophytes, enzyme, equador, fungi, howard hughes medical institute, jeffrey huang, jonathan r russell, kaury kucera, new haven, organisms, plastic, pria anand, rainforest plants, yale rainforest expedition, yale students, yale undergraduates

Organisms discovered by Yale undergraduates growing within fungi in the Amazon Rainforest can degrade polyurethane, a findings that may lead to innovative ways to reduce waste in the world’s landfills.

The paper, accepted for publication in July by the journal Applied and Environmental Microbiology, is the work of undergraduates who participated in Yale’s Rainforest Expedition and Laboratory course, funded by the Howard Hughes Medical Institute. (more…)

Soil pollution from PCBs

By ShamsMarch 22, 2008Environmentbioremediation, dechlorination, Donna Fennell, hydrophobic, microorganisms, New Jersy, PCBs, polychlorinated biphenyls, Rutgers University, soil pollution

These are compounds that were produced as industrial chemicals (man-made organic compounds, synthetic) and used in lubricating oils, paints, in carbonless copy paper (non-carbon copy paper – an alternative to carbon paper), in electrical insulators and in many other industrial and commercial products.

(more…)

Tag Archives: bioremediation

Tiny acts of microbe justice help reveal how nature fights freeloaders

Berkeley Lab Researchers Create First of Its Kind Gene Map of Sulfate-reducing Bacterium: Work Holds Implications for Future Bioremediation Efforts

Yale Students’ Trip to Rainforest Yields New Way to Degrade Plastic

Soil pollution from PCBs