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:2/3/2016)... February 3, 2016 --> ... research report "Automated Fingerprint Identification System Market by Component ... Application (Banking & Finance, Government, Healthcare, and Transportation) and ... the market is expected to be worth USD 8.49 ... between 2015 and 2020. The transformation and technology evolution ...
(Date:2/2/2016)... 2016  BioMEMS devices deployed in hospitals ... medical screening and diagnostic applications, such as ... that facilitate and assure continuous monitoring without ... being bolstered through new opportunities offered by ... coupled with wireless connectivity and low power ...
(Date:2/2/2016)... YORK , Feb. 2, 2016 Technology Enhancements ... presents an analysis of the digital and computed radiography ... Malaysia , and Indonesia ... trends and market size, as well as regional market ... country and discusses market penetration and market attractiveness, both ...
Breaking Biology News(10 mins):
(Date:2/5/2016)... 2016 Amarantus BioScience Holdings, Inc. ... on developing products for Regenerative Medicine, Neurology and Orphan ... Designation (RPDD) from the US Food and Drug Administration ... was previously granted orphan drug designation (ODD) by the ... BioScience Holdings, Inc. (OTCQB: AMBS), a ...
(Date:2/4/2016)... ... February 04, 2016 , ... Morf Media Inc ... an interactive FDA compliance training course, Writing Effective SOPs ... accredited interactive course on Morf Playbook—now conveniently available on smartphones and PCs--provides step ...
(Date:2/4/2016)... , Feb. 4, 2016  Sangamo BioSciences, Inc. ... editing, announced today that Edward Lanphier , Sangamo,s ... on the progress of Sangamo,s ZFP Therapeutic ® ... strategy at 2:40 pm ET on Thursday, February 11, ... Global Healthcare Conference. The conference is being held in ...
(Date:2/4/2016)... ... February 04, 2016 , ... ... University’s Digital Forensics Club, takes place February 5-6 at the University’s student ... speakers and activities such as workshops and competitions for ample networking, learning ...
Breaking Biology Technology:
Cached News: