HOME >> BIOLOGY >> NEWS
Corals can reestablish symbiosis with algae from their environments after bleaching

BUFFALO, N.Y. -- Corals can develop new symbiotic relationships with algae from their environments after they've undergone bleaching, the process by which corals whiten as a result of environmental stress, University at Buffalo biologists report in the current issue of Science.

The research provides evidence that corals may have multiple mechanisms that facilitate recovery from bleaching induced by environmental stresses.

Scientists have known that corals can recover from bleaching episodes, but they did not know why.

It has not been clear whether recovery resulted from the few remaining symbiotic algae, or algal symbionts, remaining within the coral tissue since early development, or if coral could acquire entirely new ones from their aquatic environments.

Corals survive and thrive because of the symbiotic relationship they develop with the single-celled algae called zooxanthellae (zo-zan-thel-y), which live inside them and help supply them with food.

But certain environmental stresses, such as high or low light or sea temperatures, can lead to a reduction in algal densities or loss of pigmentation, leaving the coral's white skeleton visible through the clear tissue.

"Our data show that corals have the potential to take up new symbionts, providing a mechanism for resilience in the face of environmental change," said Mary-Alice Coffroth, Ph.D., associate professor of biological sciences in UB's College of Arts and Sciences, and senior author on the paper.

Coffroth and her co-author, Cynthia L. Lewis, who recently received her master's degree in biological sciences from UB, induced bleaching in gorgonian soft corals (a type of sea rod common to Caribbean reefs) by keeping them in darkness in the laboratory.

After 12 weeks of darkness, cell densities of symbionts in the coral had plunged to less than one percent of their population density when the corals were he
'"/>

Contact: Ellen Goldbaum
goldbaum@buffalo.edu
716-645-5000 x1415
University at Buffalo
3-Jun-2004


Page: 1 2

Related biology news :

1. Corals defy species classification
2. Corals are being robbed of light
3. Plant-fungal symbiosis found in high-heat extreme environment
4. Researchers review evolutionary history of modern algae
5. From algae, weeds and people: new genetic clues to complex obesity syndrome
6. Ontario researchers see increase in taste and odour-causing algae problems
7. Want a side of algae with that? Hawaiian farmers sell seaweed by the seashore
8. Desert dust enables algae to grow
9. Growing human antibodies in algae
10. URI biological oceanographers study potentially toxic microalgae on the northeast coast
11. Researcher turns brown algae phylogeny upside down

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/21/2017)... PORTLAND, Ore. , Feb. 22, 2017  IBM ... Companies (Avamere Health Services, Infinity Rehab, Signature Hospice, Home ... that will apply the power of IBM cognitive computing ... health centers. By analyzing data streaming from sensors in ... physical and environmental conditions, and obtain deeper learnings into ...
(Date:2/13/2017)... 2017  RSA Conference -- RSA, a Dell Technologies ... to enhance fraud detection and investigation across digital ... Fraud & Risk Intelligence Suite. The new platform ... insights from internal and external sources as well ... customers from targeted cybercrime attacks. "Fraudsters ...
(Date:2/8/2017)... YORK , Feb. 8, 2017 About ... individual,s voice to match it against a stored ... such as pitch, cadence, and tone are compared ... require minimal hardware installation, as most PCs already ... for different transactions. Voice recognition biometrics are most ...
Breaking Biology News(10 mins):
(Date:3/24/2017)... and ROCKVILLE, Md. , March ... of Maxwell Biotech Venture Fund (MBVF), today announced positive ... added to the standard drug therapy regimen in patients ... small molecule drug discovered by scientists at Sequella, Inc. ... Institutes of Health. A total of ...
(Date:3/24/2017)... VILLAGE, Calif. , March 24, 2017   ... dermatology and aesthetics company, today announced that Richard ... Officer, effective March 24.   Peterson, who brings ... succeed John Smither , who is retiring at ... Sienna in an advisory capacity. Peterson joins Sienna from ...
(Date:3/23/2017)... 2017 Research and Markets has announced ... report to their offering. ... The Global Market for Bioproducts Should ... at a CAGR of 8.9%, This research ... into seven major product segments: bio-derived chemicals, biofuels, pharmaceuticals (biodrugs ...
(Date:3/23/2017)... Calif., March 23, 2017  BioPharmX Corporation (NYSE ... for the dermatology market, today reported financial results ... 2017, and will provide an update on the ... year. "We are pleased to report ... for BioPharmX," said President Anja Krammer. "We achieved ...
Breaking Biology Technology:
Cached News: