Navigation Links
New research finds increased growth responsible for color changes in coral reefs
Date:7/6/2012

Research from the University of Southampton and National Oceanography, Southampton has provided new insight into the basic immune response and repair mechanisms of corals to disease and changing environmental conditions.

The study, published in the latest issue of the journal Coral Reefs, found that increased growth is the underlying physiological process associated with disease, wounding and stress-related colour changes in reef-building corals.

The study investigated distinct green fluorescent protein (GFP)-like pigments responsible for the green, red and purple-blue colours of many reef-building corals.

By examining these GFP-like pigments in four coral species from the Red Sea, the Arabian/Persian Gulf and Fiji, researchers found that their presence indicates growing tissue in growing branch tips and margins of healthy coral colonies; as well as in disturbed colony parts, compared to undisturbed areas.

Dr Joerg Wiedenmann, Senior Lecturer of Biological Oceanography and Head of the Coral Reef Laboratory at the University of Southampton, who led the study, says: "The specific pigment signatures that we observed, demonstrate that locally accelerated growth in the presence of foreign biological material, represents a novel component of the innate immune response of reef corals in which the animals try to neutralise potentially dangerous organisms by overgrowing them.

"We found that increased growth is the underlying physiological process of the 'pink-blue spot syndrome', a colour change linked, for instance, with wounding of Red Sea corals. We also found a strong increase of red fluorescence in growth margins in the presence of gastropods and tube worms."

The researchers were able to detect coral growth and tissue proliferation by using the excellent biomarker properties of GFP-like pigments. Fluorescent proteins from reef corals are routinely applied as markers in biomedical and pharmaceutical research, because their fluorescence can be easily detected.

Dr Wiedenmann, who is based at National Oceanography Centre, Southampton, adds: "The future of coral reefs is strongly dependent on management strategies that can promote their recovery and resilience. The success of these efforts will rely on the identification of particularly vulnerable areas or regions affected by high levels of stress.

"Coral reef monitoring will benefit from this study as the use of these GFP-like pigments as biomarkers can be used as indicators of mechanical stress/damage inflicted, for instance, by swimmers or divers or give an indication of parasites or disease.

"Our conclusions have important implications for predictions of the negative impact of changing environmental conditions on coral reefs. Reduced coral growth rates anticipated in response to ocean acidification, warming and nutrient enrichment of coral reef waters will result in a reduced capability of the corals to defend themselves against colonisation by other organisms."


'/>"/>

Contact: Glenn Harris
G.Harris@soton.ac.uk
44-238-059-3212
University of Southampton
Source:Eurekalert  

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Research reveals first evidence of hunting by prehistoric Ohioans
3. Diabetes Research Institute develops oxygen-generating biomaterial
4. APS issues new policy requiring identification of sex or gender in reporting scientific research
5. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
6. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
7. U of Alberta researcher steps closer to understand autoimmune diseases
8. Research on flavanols and procyanidins provides new insights into how these phytonutrients may positively impact human health
9. A project to research biological and chemical aspects of microalgae to fuel approach
10. Scripps Research discoveries lead to newly approved drug for infant respiratory distress syndrome
11. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New research finds increased growth responsible for color changes in coral reefs
(Date:6/2/2016)... NEW YORK , June 2, 2016   The ... (Weather), is announcing Watson Ads, an industry-first capability in which ... advertising, by being able to ask questions via voice or ... Marketers have long ... with the consumer, that can be personal, relevant and valuable; ...
(Date:5/16/2016)...   EyeLock LLC , a market leader of ... an IoT Center of Excellence in Austin, ... of embedded iris biometric applications. EyeLock,s iris ... security with unmatched biometric accuracy, making it the most ... EyeLock,s platform uses video technology to deliver a fast ...
(Date:4/28/2016)... 2016 First quarter 2016:   ... with the first quarter of 2015 The gross margin ... (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) , ... unchanged, SEK 7,000-8,500 M. The operating margin for 2016 ...
Breaking Biology News(10 mins):
(Date:6/27/2016)...   Ginkgo Bioworks , a leading organism ... today awarded as one of the World Economic ... most innovative companies. Ginkgo Bioworks is engineering biology ... world in the nutrition, health and consumer goods ... customers including Fortune 500 companies to design microbes ...
(Date:6/24/2016)... ... 24, 2016 , ... While the majority of commercial spectrophotometers and fluorometers use ... 6000i models are higher end machines that use the more unconventional z-dimension of 20mm. ... from the bottom of the cuvette holder. , FireflySci has developed several Agilent ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, ... launch of their brand, UP4™ Probiotics, into Target stores nationwide. The company, which ... to add Target to its list of well-respected retailers. This list includes such ...
(Date:6/23/2016)... Md. , June 23, 2016 A person ... from the crime scene to track the criminal down. ... the U.S. Food and Drug Administration (FDA) uses DNA evidence ... Sound far-fetched? It,s not. The FDA ... sequencing to support investigations of foodborne illnesses. Put as simply ...
Breaking Biology Technology: