Navigation Links
New research finds increased growth responsible for color changes in coral reefs

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
University of Southampton

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:
Related Image:
New research finds increased growth responsible for color changes in coral reefs
(Date:11/17/2015)... SOUTH EASTON, Mass. , Nov. 17, 2015 /PRNewswire/ ... "Company"), a leader in the development and sale of ... to the worldwide life sciences industry, today announced it ... closing of its $5 million Private Placement (the "Offering"), ... Offering to $4,025,000.  One or more additional closings are ...
(Date:11/11/2015)... , Nov. 11, 2015   MedNet Solutions , an ... of clinical research, is pleased to announce that it will ... Trials (PCT) event, to be held November 17-19 in ... to view live demonstrations of iMedNet , ... how iMedNet has been able to deliver time ...
(Date:11/4/2015)... 2015 --> ... by Transparency Market Research "Home Security Solutions Market - Global ... - 2022", the global home security solutions market is expected to ... The market is estimated to expand at a CAGR ... 2022. Rising security needs among customers at homes, the ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... and NEW YORK , November 24, ... investment by Bristol-Myers Squibb in a European ... Bristol-Myers Squibb Company in which the companies will work ... immuno-oncology and other areas of unmet medical need. The collaboration ... LSP 5, the latest LSP fund. This is the first ...
(Date:11/24/2015)... , Nov. 24, 2015 According to two new ... 2005. This is something that many doctors, scientists, and public ... questions remains: with fewer PSA tests being done, will there ... Dr. David Samadi, "Despite the efforts made ... remains the second leading cancer cause of death in men, ...
(Date:11/23/2015)... Nov. 23, 2015   Ceres, Inc . (Nasdaq: ... financial results for the fiscal year ended August 31, ... --> --> During fiscal ... and feed products with a better balance of yield, ... distribution agreements with several leading crop input providers and ...
(Date:11/23/2015)... Md. (PRWEB) , ... November 23, 2015 , ... ... 100 award for the development of its Nexera UC Unified Chromatography system. The ... 100 most technically significant new products of the year in the analytical and ...
Breaking Biology Technology: