Navigation Links
Global warming increases oyster sensitivity to pollution

Do you enjoy eating oysters on a hot sunny afternoon? Make the most of it ?it may not last forever. Research has shown that global warming increases the sensitivity of oysters to metal pollution, causing a deadly threat to populations in polluted areas. Dr. Gisela Lannig from the University of North Carolina, USA, will present her work on cadmium poisoning in eastern oysters (Crassostrea virginica) on Monday 11th July at the Society for Experimental Biology Annual Main Meeting in Barcelona [session C2].

Oysters are cold-blooded organisms so their body temperature changes with environmental temperature. Lannig observed that cadmium levels increased the basic metabolic rate (BMR) of oysters at 20ºC and 24º. For oysters at 28ºC, cadmium did not increase the BMR, but it significantly reduces its chances of survival. "One possible mechanism for this observation is increased damage of mitochondria in cadmium-exposed oysters with increasing temperature", Lannig explains, "these organelles become significantly more sensitive to cadmium as temperature rises, so that cadmium levels which were not damaging to mitochondria at lower temperature become strongly toxic with increasing temperature."

Cadmium circulates continually between air, water and soils. As it moves easily through the food chain, high levels are reported in seals. In humans, cadmium interferes with calcium metabolism and deposition in the bone. Accumulation over time can cause serious illnesses such as itai itai disease. Future research will focus on to what extent cadmium reduces thermal tolerance of cold-blooded species.


'"/>

Source:Society for Experimental Biology


Page: 1

Related biology news :

1. Global analysis of membrane proteins
2. Grand Challenges in Global Health initiative funds Yale project
3. Global study shows all tobacco bad for the heart
4. Global warming may warrant new approaches to ecosystem restoration
5. Global warming may have damaged coral reefs forever
6. Global malaria map key weapon in fight against malaria, scientists say
7. Global changes alter the timing of plant growth, scientists say
8. Global map shows new patterns of extinction risk
9. Global sunscreen has likely thinned, report NASA scientists
10. Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems
11. Elephant seal pups suffer from ocean warming
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/13/2017)... PORT WASHINGTON, N.Y. , Jan. 13, 2017 ... provider of technology solutions for the homecare industry, ... appointment of homecare industry expert, Justin Jugs, as ... Justin brings more than 15 years of homecare ... the team in developing strategic plans to align ...
(Date:1/12/2017)... January 12, 2017 A new report by Allied Market Research, ... global biometric technology market is expected to generate revenue of $10.72 billion by 2022, ... Continue Reading ... Allied Market Research Logo ...      (Logo: http://photos.prnewswire.com/prnh/20140911/647229) In ...
(Date:1/6/2017)... 2017  Privately-held CalciMedica, Inc., announced that it ... of a novel calcium release-activated calcium (CRAC) channel ... Acute pancreatitis, sudden painful inflammation of ... can be very serious.  In severe cases it can ... hospital stays, time in the ICU and substantial ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... BETHESDA, Md. , Jan. 18, 2017  Northwest ... company developing DCVax® personalized immune therapies for operable and ... Marnix Bosch , Chief Technical Officer of NW Bio, ... Thursday, January 19, 2017, at the Hyatt Regency Hotel ... Dr. Bosch will chair the session entitled "New Therapeutic ...
(Date:1/18/2017)... Mass. , Jan. 18, 2017   Boston ... novel compounds designed to target cancer stemness pathways, will ... investigational compound, napabucasin, at the 2017 ASCO Gastrointestinal Cancers ... Francisco . Napabucasin is an ... by targeting STAT3. i Cancer stem cells (CSCs) ...
(Date:1/18/2017)... ... January 18, 2017 , ... ... E&L expertise. Within Albany Molecular Research, Inc. (AMRI), the scientific staff dedicated to ... and is planned for further growth in 2017. Extractable & Leachable evaluations have ...
(Date:1/18/2017)... IL (PRWEB) , ... January 18, 2017 , ... ... on January 24th, 2017, to sell research and genetic testing lab equipment from ... service in the Northwest and Northeast regions of the United States. This 1-day ...
Breaking Biology Technology: