Navigation Links
Microbes and their hosts -- exploring the complexity of symbiosis in DNA and cell biology
Date:7/28/2009

New Rochelle, NY, July 28, 2009The unique association between microorganisms and their hosts, whether insects, plants, or mammals, provides a fascinating view into how microbial symbionts adapt to changing biological environments. Insights into the diversity and complexity of symbiotic relationships are the focus of the current special issue of DNA and Cell Biology, a peer-reviewed journal published by Mary Ann Liebert, Inc. The issue is available free online at www.liebertpub.com/dna

"Symbiosis is one of the most rapidly growing fields in biology.... After decades of focusing on bacteria in pure culture, it is evident that to manage them for our benefit, we need to understand bacteria in association with the complex biological environments with which they contend in the natural world," write Jo Handelsman, PhD, Editor-in-Chief of DNA and Cell Biology, Professor at the University of Wisconsin-Madison, and President of the Rosalind Franklin Society, and Guest Editor Margaret J. McFall-Ngai, Professor at the University of Wisconsin-Madison, in their Editorial.

The issue contains articles representative of the broad range of scientific topics and disciplines related to microbial symbiosis. These include "The Oral Microbial Consortium's Interaction with the Periodontal Innate Defense System," which describes a process called "local chemokine paralysis," in which the membership and characteristics of the bacterial community that populates the gingival crevice in the human mouth affect the ability of the natural immune defenses in the mouth to detect the presence of harmful bacteria and orchestrate their destruction. Author Richard Darveau, PhD, from the University of Washington in Seattle, describes this phenomenon as "another mechanism by which the action of a single bacterial member of the oral consortium can affect the host responses to a wide variety of different bacteria."

The term "symbiont plasticity" describes the mechanisms by which symbiotic microbes adapt to changes in host development, immune responses, and the changing external environment. Jennifer Wernegreen, PhD, from the Marine Biological Laboratory at Woods Hole, MA, and Diana Wheeler, PhD, from the University of Arizona, in Tucson, use the example of mutualism between Blochmannia and their ant hosts to illustrate how the bacteria rely on genetic, ecological, and physiological means to maintain the functional flexibility that allows them to meet the needs of an ant colony rather than the individual ants that make up the colony. Their thought-provoking review of the impact of symbiotic lifestyle on genetic variation and microbial adaptation is entitled, "Remaining Flexible in Old Alliances: Functional Plasticity in Constrained Mutualisms."

Adam Silver and Joerg Graf from the University of Connecticut, in Storrs, explore the role of virulence factors and specific toxins produced by members of the Aeromonas veronii bacterial group in the article "Prevalence of Genes Encoding the Type Three Secretion System and the Effectors AexT and AexU in the Aeromonas veronii Group." These bacteria can cause a range of infections, from diarrhea and wound infections to life-threatening septicemia and meningitis. The authors demonstrate the presence of the type-3 secretion factors AexT and AexU in a variety of Aeromonas veronii strains and propose different functions for these two toxins.


'/>"/>

Contact: Vicki Cohn
vcohn@liebertpub.com
914-740-2156
Mary Ann Liebert, Inc./Genetic Engineering News
Source:Eurekalert

Related biology news :

1. Hungry microbes share out the carbon in the roots of plants
2. Microbes churn out hydrogen at record rate
3. Cosmopolitan microbes -- hitchhikers on Darwins dust
4. Scientists melt million-year-old ice in search of ancient microbes
5. Methane from microbes: a fuel for the future
6. Nitrous oxide from ocean microbes
7. Paired microbes eliminate methane using sulfur pathway
8. Hot springs microbes hold key to dating sedimentary rocks, researchers say
9. Unexplored microbes hold incredible potential for science and industry
10. New window opens on the secret life of microbes
11. Coral reefs and climate change: Microbes could be the key to coral death
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/16/2017)... -- Veratad Technologies, LLC ( www.veratad.com ), an innovative and ... solutions, announced today they will participate as a sponsor ... May 17, 2017, in Washington D.C.,s ... Identity impacts the lives of billions of ... digital world, defining identity is critical to nearly every ...
(Date:4/19/2017)... ALBANY, New York , April 19, 2017 /PRNewswire/ ... highly competitive, as its vendor landscape is marked by ... in the market is however held by five major ... and Safran. Together these companies accounted for nearly 61% ... majority of the leading companies in the global military ...
(Date:4/13/2017)... 13, 2017 According to a new market research ... Analytics, Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, and ... is expected to grow from USD 14.30 Billion in 2017 to USD ... 17.3%. ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):
(Date:7/18/2017)... ... July 18, 2017 , ... Recently recognized by ... ) announces the migration of its flagship cloud-based product Planet Life Cycle – ... enterprise work management system that merges strategic and financial planning with execution. The ...
(Date:7/17/2017)... ... 17, 2017 , ... OHAUS Corporation, a leading worldwide manufacturer ... new line of Heavy-Duty Orbital Shakers today. , Eight New Models Available, OHAUS ... applications. These shakers are ideal for load capacities from 35 to 150 ...
(Date:7/17/2017)... ... 2017 , ... DuPont Pioneer today announced the launch of ... dedicated to connecting third-party innovators with DuPont Pioneer scientists is now available and ... and digital solutions. , “DuPont Pioneer is building on its long history of ...
(Date:7/14/2017)... ... , ... Sonic Manufacturing Technologies is proud to be an ... system on its roof top. “We will be independent of the grid and ... The company’s proud history of social responsibility and participation in the preservation of ...
Breaking Biology Technology: