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Latest Environmental microbiology Stories

2012-03-06 23:54:01

Microorganisms play pivotal functions in nature, particularly within aquatic ecosystems. Whether in an ocean or a lake, they are key players in the food chain and the vitality of individual ecosystems. A team of researchers led by Arezoo M. Ardekani, the Rev. John Cardinal O'Hara, C.S.C., Assistant Professor of Aerospace and Mechanical Engineering at the University of Notre Dame, has shown that density stratification, a frequent feature of aquatic environments, has important ecological...

2012-01-31 06:20:47

The first awardees for the pilot project grant program from The Alkek Center for Metagenomics and Microbiome Research at Baylor College of Medicine have been announced. The grants were open to BCM instructors, assistant professors and postdoctoral associates. Six researchers were chosen for the Microbiota Association Discovery award of $20,000 or the Host-Commensal Interaction Study award of $50,000. "The grants were created to support preliminary studies for faculty who are looking to...

Extracellular Matrix Identified As Source Of Spreading In Biofilms
2012-01-24 03:39:59

New research at Harvard explains how bacterial biofilms expand to form slimy mats on teeth, pipes, surgical instruments, and crops. Through experiment and mathematical analysis, researchers have shown that the extracellular matrix (ECM), a mesh of proteins and sugars that can form outside bacterial cells, creates osmotic pressure that forces biofilms to swell and spread. The ECM mechanism is so powerful that it can increase the radius of some biofilms five-fold within 24 hours. The...

2012-01-19 17:53:52

The bottom of a glacier is not the most hospitable place on Earth, but at least two types of bacteria happily live there, according to researchers. The bacteria -- Chryseobacterium and Paenisporosarcina -- showed signs of respiration in ice made in the laboratory that was designed to simulate as closely as possible the temperatures and nutrient content found at the bottom of Arctic and Antarctic glaciers, said Corien Bakermans, assistant professor of microbiology, Penn State Altoona. She...

2012-01-11 09:55:11

By analyzing how multiple microbial species act in concert in the gut, researchers see different patterns in lean and obese people For the first time, researchers have analyzed the multitude of microorganisms residing in the human gut as a complex, integrated biological system, rather than a set of separate species. Their approach has revealed patterns that correspond with excess body weight. The collection of microbes inside the human gut is a bustling network of genetic interplays and...

2011-12-21 13:03:00

Ultimate goal: Tailings water treatment plants for all oil sands operations Alberta's oilsands have water challenges. Oilsands development uses a vast amount of water and even though it's recycled multiple times, the recycling concentrates the toxins and metals leftover from extracting and upgrading the bitumen, resulting in tailings ponds that are both a lightning rod for controversy and a significant risk to the environment. A research project underway between biologists at the...

2011-11-29 08:26:47

(Ivanhoe Newswire) — You may want to refrain from touching anything in a public restroom after you wash your hands. Researchers used novel genetic sequencing methods to reveal a plethora of bacteria all over public restrooms. This leads to potential public health implications, according to this study. Led by Gilberto Flores and Noah Fierer of the University of Colorado, Boulder, the researchers investigated 12 public restrooms, 6 male and 6 female, in Colorado. Using a...

2011-11-18 03:57:16

Interfering with the ability of biofilm-forming bacteria to sense starvation increases their susceptibility to antibiotics Many infections, even those caused by antibiotic-sensitive bacteria, resist treatment. This paradox has vexed physicians for decades, and makes some infections impossible to cure. A key cause of this resistance is that bacteria become starved for nutrients during infection. Starved bacteria resist killing by nearly every type of antibiotic, even ones they have never...

Why Do Some Patients Get Infections From Cardiac Implants?
2011-10-25 03:35:37

New research suggests that some patients develop a potentially deadly blood infection from their implanted cardiac devices because bacterial cells in their bodies have gene mutations that allow them to stick to the devices. Patients with implants can develop infections because of a biofilm of persistent bacterial bugs on the surfaces of their devices. Researchers found that some strains of the bacteria, Staphylococcus aureus, have just a few genetic variants in the proteins on their...


Word of the Day
bodacious
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'
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