Navigation Links
Coastal creatures may have reduced ability to fight off infections in acidified oceans
Date:8/5/2010

jected to low oxygen, high carbon dioxide conditions. It takes about half as much bacteria to administer a lethal dose to a creature in a low oxygen, high carbon dioxide environment.

"Our approach is exciting because traditionally physiologists haven't considered bacteria or disease as a natural environmental barrier, so it's a pretty open field," says Louis Burnett.

Apparently, if marine animals are challenged with a pathogen, a large number of their blood cells disappear within a few minutes. The blood cells clump up to attack the pathogen, but also lodge in the gills (the sea critter version of lungs), where the body gets it oxygen. The scientists see evidence that sea animals fighting off infection lower their metabolism, which slows down other important processes like making new proteins.

"Everything we see points to the fact that if an animal that mounts a successful immune response then their gill function and ability to exchange oxygen is reduced by about 40 percent, which is why they seem to be having such problems living in low oxygen conditions," says Karen Burnett. "If you add high carbon dioxide to that, it gets worse."

The researchers are now using microarrays to measure changes in gene expression in marine organisms that are exposed to bacteria under low oxygen, high carbon dioxide conditions.

"After exposure to these conditions for only a day, animals at the molecular level have given up in trying to adapt to the situation, and they are going into molecular pathways that indicate cell death," says Karen Burnett.

The coastal animals the Burnett's study live in environments where natural levels of oxygen and carbon dioxide fluctuate. Theoretically, these animals are already adapted for varied environments, and yet they still struggle with these changing conditions. It's alarming that deep-water animals may be much more affected by ocean acidification, since they are not used to the ebb and flow
'/>"/>

Contact: Donna Krupa
DKrupa@the-aps.org
301-634-7209
American Physiological Society
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Coastal birds carry toxic ocean metals inland
2. Invasive tunicate appears in Oregons coastal waters
3. UCLA engineers develop faster method to detect bacterial contamination in coastal waters
4. NASA researcher nets first measure of Africas coastal forests
5. Shifting Sands highlights past, present and future of Maryland coastal bays ecosystem
6. New study ranks hotspots of human impact on coastal areas
7. Bycatch whaling a growing threat to coastal whales
8. NOAA report calls flame retardants concern to US coastal ecosystems
9. Scientists find climate change to have paradoxical effects in coastal wetlands
10. Stronger coastal winds due to climate change may have far-reaching effects
11. First-ever socioeconomic study on coral reefs points to challenges of coastal resource management
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... Strict laws against distracted driving and the ... American and European automotive sector towards gesture recognition technologies. ... that are intuitive and able to retrieve information with ... New analysis from Frost & Sullivan,s Strategic ... Europe and North America ...
(Date:11/18/2014)... 17, 2014 The Parenteral Drug Association (PDA) today ... will speak and at least seven more will participate in ... Omni Shoreham Hotel in Washington D.C. , ... have significant support from the regulatory agencies in ... in our effort to help advance the use of ...
(Date:11/10/2014)... Laundry detergent pods began appearing on U.S. store shelves ... growing numbers ever since. The small packets can be ... measure out a liquid or powder. The convenience, though, ... new study from researchers at Nationwide Children,s Hospital found ... received reports of 17,230 children younger than 6 years ...
Breaking Biology News(10 mins):Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Study finds laundry detergent pods, serious poisoning risk for children 2
... 2013, New York, NY Ludwig researchers have elucidated a ... metabolize glucose to generate the energy and raw materials ... in Cell Metabolism , the Ludwig Cancer Research ... harnesses the mechanism to resist targeted therapies that should ...
... steer clear of dirt but their wild cousins can,t be ... a result. A study of wild mice has shown ... material and droppings left by other mice. Choosing a ... an increased risk of disease from other animals, dirt, the findings ...
... that individual "molecular muscles" within cells respond to different types ... the environment and appropriately adapt their shapes and activities. ... the journal Nature Materials , specifically sheds light on ... A computer model the researchers developed, they add, ...
Cached Biology News:Targeting cancer's sweet tooth 2Targeting cancer's sweet tooth 3Clean living is a luxury wild animals can't afford, study suggests 2Cells' 'molecular muscles' help them sense and respond to their environments 2Cells' 'molecular muscles' help them sense and respond to their environments 3
(Date:12/17/2014)... San Diego, CA (PRWEB) December 17, 2014 ... strategy and activation agency and member of the Huntsworth ... Jamie Gonzales to its executive team. In her role, ... Services. , “We are incredibly honored to welcome ... said Agency Chief and CEO, Gaëtan Fraikin. “She is ...
(Date:12/17/2014)... SILVER SPRING, Md. , Dec. 17, 2014 /PRNewswire/ ... today two senior executive promotions as well as changes ... Senior Executive Promotions United ... Ph.D. to President and Co-Chief Executive Officer and ... Chief Operating Officer.  In connection with these promotions, Dr. ...
(Date:12/17/2014)... SAN FRANCISCO, Calif. , Dec. 17, 2014 ... results of a Phase 2 study evaluating the ... the treatment of patients with severe, chronic itch ... current standard of care, including topical steroids and ... was percent change in Visual Analog Scale (VAS) ...
(Date:12/15/2014)... December 15, 2014 METTLER TOLEDO ... PVM tool, ParticleView V19 with PVM technology ... probe-based particle vision and measurement tool continuously captures ... conditions. ParticleView V19 then automatically prepares a report ... particle size and concentration changes. This compelling blend ...
Breaking Biology Technology:Audacity Welcomes Healthcare Communications Expert Jamie Gonzales as Senior Vice President of Client Services 2United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 2United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 3United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 4Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4New Real-Time In Situ Probe-Based Video Microscope from METTLER TOLEDO 2
... California. , Dynal : 400+ employees worldwide, 87 in ... Norway. Brown Deer, Wis. California-based ... ASA , whose U.S. operations are based in Brown ... million. , ,Invitrogen has considered the acquisition since ...
... venture capital performance in the U.S. during 2004. , ,We ... share of this investment as well as how the life science ... detailed look at how the life science industry in the Midwest ... report. , ,Still, I was able to ferret out some ...
... written about the important impact that generic pharmaceutical drugs ... Their rise and growth spurs Big Pharma to invest ... Americans not having any kind of medical health insurance ... medicines from Canada being rapidly shut by U.S. pharmaceutical ...
Cached Biology Technology:Invitrogen to buy Norwegian biotech with operations in Brown Deer 2Midwest VC investment up in 2004, but number of deals down 2Midwest VC investment up in 2004, but number of deals down 3Pharmas will be forced into generic-drug strategy 2Pharmas will be forced into generic-drug strategy 3
... Protein Solubility Service, We deliversoluble protein ... SOS technology yields the best soluble protein ... on each clone submitted , Powerful results ... new protein Solubility Optimization Service (SOS) uses ...
... Multi-Disciplinary Team The ... is a stand-alone work center dedicated ... array manufacturing. The facilitys experienced project ... Planning and Marketing professionals, work closely ...
... scale kinase profiling, quantitative measurement of ... research built on the flexible and ... These microarrays are available as part ... - Peptide Microarray Service. ...
... commonly used technique for studying protein function ... on SDS-PAGE and transferred to a membrane ... are probed with specific antibodies. Unlike nucleic ... Southern and Northern blots, it has been ...
Biology Products: