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team reveals high prevalence of bacteria that carry gene mcr-1 in ecosystem




a research collaborative recently found that bacteria that carry the colistin resistance gene mcr-1 commonly exist in food and environmental samples collected from hong kong and the chinese mainland. the mcr-1 gene is a new plasmid-encoded colistin resistance mechanism discovered by scientists in ch...



managing antibiotics not enough to reverse resistance




credit: cc0 public domainresearchers have discovered that reducing the use of antibiotics will not be enough to reverse the growing prevalence of antibiotic resistance for some types of bacteria. besides passing along the genes bestowing antibiotic resistance to their offspring, many bacteria can al...



managing antibiotics not enough to reverse resistance




durham, n.c. -- researchers have discovered that reducing the use of antibiotics will not be enough to reverse the growing prevalence of antibiotic resistance for some types of bacteria. besides passing along the genes bestowing antibiotic resistance to their offspring, many bacteria can also swap g...



your stools reveal whether you can lose weight




image: the subjects picked up their food in a scientific supermarket at the university of copenhagen. view more credit: lizette kabréweight loss - something as simple as a faeces sample reveals whether you can lose weight by following dietary recommendations characterized by a high content of fru...



the e in e. coli now stands for electronics




enlarge/ synthetic biology (artist's conception).harvard universityshare this storysynthetic biology—our attempt to engineer living organisms—has put a lot of effort into making genetic circuitry mimic what we do in silicon. logical gates, amplifiers, and more have all been implemented using dna...



new model reveals possibility of pumping antibiotics into bacteria




researchers in the university of wisconsin-madison department of biochemistry have discovered that a cellular pump known to move drugs like antibiotics out of e. coli bacteria has the potential to bring them in as well, opening new lines of research into combating the bacteria.



bacterial supermachine reveals streamlined protein assembly line




the bacterial expressome. in bacteria, the machine that reads dna to turn it into a message and the machine that translates the message into protein are combined into single complex or "supermachine." in humans and other organisms, these machines are distinct. that bacteria link them has important i...



gut bacteria metabolism may factor into hypertension




image: ridlon and endocrinologist david morris explain the mechanism that links gut bacteria to hypertension in humans. view more credit: lauren d. quinnurbana, ill. - one in three american adults suffers from high blood pressure, or hypertension. the disease can be passed down in families, and ce...



altering gut bacteria pathways may stimulate fat tissue to prevent obesity




cleveland clinic researchers have uncovered a biological link between gut bacteria metabolism and obesity. the team showed that blocking a specific intestinal microbial pathway can prevent obesity and insulin resistance, as well as cause fat tissue to become more metabolically active. the study was ...



no gene is an island




image: bacterial colonies with a fluorescent reporter protein appearing on tetracycline plates over three days (left to right). bacteria can grow and form colonies either due to single-step mutations that activate... view more credit: magdalena steinrückgenes do not exist in isolation. like beads...



virtual reality for bacteria




individual cells are digitally guided along pre-specified trajectories of fluorescent gene expression. 48 escherichia coli cells are arranged vertically in the image. time moves on towards the right. each row therefore presents fluorescent gene expression of an individual cell over time, controlled ...



new research reveals ecosystem cascades affecting salmon




interpreting relationships between species and their environments is crucial to inform ecosystem-based management (ebm), a priority for noaa fisheries. ebm recognizes the diverse interactions within an ecosystem—including human impacts—so noaa fisheries can consider resource tradeoffs that help ...



mexico's yucatan peninsula reveals a cryptic methane-fueled ecosystem in flooded




image: cave passage and diver within a section of the ox bel ha cave system where the current study was conducted. the guideline seen alongside the diver that provides a continuous... view more credit: photograph © hp hartmann.in the underground rivers and flooded caves of mexico's yucatan penins...



gene drives may cause a revolution, but safeguards and public engagement are nee




gene drives could prove useful for controlling mosquitoes which spread diseases like malaria, dengue and zika virus. credit: www.shutterstock.coma "gene drive" occurs when a specific gene is spread at an enhanced rate through an animal or plant population. it's something that happens in nature. acro...



enzyme structures illuminate mechanism behind bacteria's bioremediation prowess




bacteria, like humans and animals, must eat. sometimes, they consume a pollutant in the environment that humans want to get rid of, a process called bioremediation. investigating the enzymes used by bacteria to carry out that process is important for scientists to understand and possibly improve on ...



experiments with bacteria show that genes can fuse together, leading to the prod




all organisms must continuously adapt to their environment in order to survive. such adaptation is brought about by changes in their genetic material. together with colleagues from new zealand, paul rainey from the max planck institute for evolutionary biology in plön has been studying the emergenc...



detection of fermentation processes in electricity-generating bacteria




a research team consisting of akihiro okamoto (senior researcher, center for green research on energy and environmental materials, nims), yoshihide tokunou (ph.d. student, department of applied chemistry, graduate school of engineering, university of tokyo; also a recipient of the jsps research fell...



bac-for good: bacteria passed between generations benefits you more than others




bacteria passed straight to children have more healthcare benefits than if they are transmitted via the surrounding environment, new oxford university research reveals.



fungi awake bacteria from their slumber




image: the nanosims is a secondary ion mass spectrometry system with a spatial resolution of down to 50 nanometres. this high resolution combined with its mass sensitivity make it possible to... view more credit: ufzwhen a soil dries out, this has a negative impact on the activity of soil bacteria...



researchers discover new structures in bacteria, seek to determine function




using high magnification imaging, a team of researchers has identified several never before seen structures on bacteria that represent molecular machinery. the research is published this week in the journal of bacteriology, published by the american society for microbiology.



labeling a bacterial cell 'jacket'




image: this is the immune system research team: from left prof. catherine grimes, doctoral students hai liang and ching-wen (sandy) hou, jeff caplan, director of the bio-imaging center, doctoral student kristen... view more credit: evan krape/ university of delawareyou have three to five pounds of...



researchers studying how to disrupt bacteria to better treat infections




bacteria are everywhere. and despite widespread belief, not all bacteria are "bad." however, to combat those that can cause health issues for humans, there has been an over-reliance on the use of antibiotics - so much so, that many of them are now proving ineffective due to bacteria developing incre...



study shows role of depression in the ongoing tobacco epidemic




march 1, 2017 -- the prevalence of smoking has remained fairly stable over the past decade after declining sharply for many years. to determine whether an increase in certain barriers to successful cessation and sustained abstinence may be contributing to this slowed decline, researchers at columbia...



the dust storm microbiome | eurekalert! science news




israel is subjected to sand and dust storms from several directions: northeast from the sahara, northwest from saudi arabia and southwest from the desert regions of syria. the airborne dust carried in these storms affects the health of people and ecosystems alike. new research at the weizmann instit...



this one goes up to 11: researchers crack code for genetic 'control dials'




scientists at the centre for genomic regulation in barcelona, spain, have developed a new technique to crack the underlying dna code for the 'control dials' that determine levels of gene activity in bacteria. the discovery has important implications for biotechnology, because genetically engineered ...