Community living causes bacteria to diversify

Diversification is a strategy that strengthens groups of all kinds -- from forests challenged with environmental stress to stock market portfolios in uncertain times. Findings from University of Iowa researchers show that even bacteria have learned this important lesson.

When disease-causing bacteria assemble into communities known as biofilms, the individual bacteria rapidly diversify. This diversity increases the capabilities of the group and provides a form of "biological insurance," which protects the organisms from adverse conditions. The findings will appear the week of Nov. 15 in the Proceedings of the National Academy of Sciences.

In the past few years, researchers have found that bacteria living in biofilms are responsible for many chronic human infections such as cystic fibrosis lung infections, heart valve infections, and wound infections in people with diabetes. In biofilms, organisms live clustered together, encased in a self-produced slime.

"Biofilm infections are a major medical problem, and one focus of our lab is to understand why the biofilm lifestyle makes bacteria so difficult to eradicate," said Pradeep Singh, M.D., assistant professor of internal medicine and microbiology in the UI Roy J. and Lucille A. Carver College of Medicine and the study's principal investigator.

Previous work has shown that living in groups gives the bacteria properties they do not have as individuals, including increased tolerance to antibiotics. The new findings suggest biofilm growth may provide another key advantage.

Using a laboratory model, the UI team found that when biofilm communities were established using a small number of identical bacteria, a remarkable degree of diversity rapidly developed in the population.

"After only a few days of biofilm growth, the bacteria diversified in their nutritional requirements, ability to swim, capacity for dissemination, production of protective substances, as well as in other

Contact: Becky Soglin
University of Iowa

Page: 1 2 3

Related biology news :

1. Wildlife Conservation Society joins Climate, Community & Biodiversity Alliance
2. VA Community College to help biotech economic development with link to global biotech training firm
3. DOE JGI announces 2006 Community Sequencing Program portfolio
4. Community MRSA is re-emergence of 1950s pandemic, study suggests
5. MIT creates 3-D images of living cell
6. In a first, Einstein scientists discover the dynamics of transcription in living mammalian cells
7. CTRC enrolls first patients in novel phase II study for sarcoma -- living virus destroys cancer cell
8. Doing nature one better: Expanding the genetic code in living mammalian cells
9. Better chemistry through living models
10. A living memory chip, black holes on the loose, and a clearer picture of ocean currents
11. A new study of living cells could revolutionize the way we test drugs

Post Your Comments:

(Date:7/4/2020)... ... July 03, 2020 , ... Aesthetics Biomedical (ABM), a ... awards for not only the products and treatments developed, but also the dedicated ... RF. All the brands built by ABM have received several honors already for ...
(Date:7/1/2020)... ... July 01, 2020 , ... Cure Glioblastoma, ... glioblastoma—the most common and aggressive adult brain cancer—announced today the appointments of its ... are charged with supporting the organization’s initiatives and overall vision. , "Senior Fellows ...
(Date:6/23/2020)... ... June 23, 2020 , ... ... services, today announced that the company has received ISO9001:2015 certification for the ... and research industries. The decision to pursue ISO9001 accreditation demonstrates Kemp’s commitment ...
Breaking Biology News(10 mins):
(Date:8/15/2020)... ... August 13, 2020 , ... ... Inc. 5000 list, the most prestigious ranking of the nation’s fastest-growing private companies. ... American economy’s most dynamic segment—its independent small businesses. Intuit, Zappos, Under Armour, Microsoft, ...
(Date:8/12/2020)... HOUSTON (PRWEB) , ... August ... ... a biopharmaceutical cold chain validation engineering firm, is making available for ... driving the need to incorporate concurrent transport simulation testing into today’s biologics ...
(Date:8/7/2020)... ... August 06, 2020 , ... VGXI, a highly regarded CDMO ... the purchase of greenfield for a new, expanded manufacturing facility. The site is ... in the initial acquisition, with an option to purchase an additional 21 acres ...
(Date:8/3/2020)... ... August 03, 2020 , ... Introducing Ardent Animal Health ... growth, , Known as MediVet Biologics since its formation in ... The new Ardent Animal Health will build on its base of innovative therapies ...
Breaking Biology Technology:
Cached News: