HOME >> BIOLOGY >> NEWS
Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils

Blacksburg, Va., May 12, 2005 Researchers from China and the United States have found evidence of lichen-like symbiosis in 600-million-year-old fossils from South China. The previous earliest evidence of lichen was 400 million years old, discovered in Scotland. The discovery also adds to the scarce fossil record of fungi and raises new questions about lichen evolution.

Xunlai Yuan, a paleontologist with the Nanjing Institute of Geology and Palaeontology; Shuhai Xiao, assistant professor of geosciences at Virginia Tech; and Thomas N. Taylor, professor of ecology and evolutionary biology at the University of Kansas, report their finding in the May 13 issue of Science ("Lichen-Like Symbiosis 600 Million Years Ago").

Yuan, Xiao, and their collaborators have been exploring the Doushantuo Formation in South China for a decade and have co-authored numerous reports of fossil discoveries, including algae and animal embryos. Taylor, a member of the National Academy of Sciences, is a paleobotanist who has reported on fossil lichens in Scotland.

Lichen is a consortium of two organisms that collaborate to survive in a harsh environment, such as exposed rock. One partner, a cyanobacterium or a photosynthetic alga, or both, are able to form food from carbon dioxide, while the other partner, a fungus, provides moisture, nutrients, and protection for the consortium.

"When and where did they first learn the tricks to form this collaboration?" Xiao asked. "The earliest lichen fossils described by Professor Taylor were from non-marine deposits about 400 million years old, when plants began to massively colonize the land. But did cyanobacteria or other algae form similar relationships with fungi in the marine environment, perhaps long before the evolution of land plants?"

Present-day examples of such relationships in the sea are abundant. Now, there is an example from ancient ocean life.

At a site where abundant algae lived in a shallow
'"/>

Contact: Susan Trulove
STrulove@vt.edu
540-231-5646
Virginia Tech
12-May-2005


Page: 1 2 3

Related biology news :

1. A private bandwidth for communication in bats: Evidence from insular horseshoe bats
2. Evidence of rapid evolution is found at the tips of chromosomes
3. Evidence human activities have shaped large-scale ecological patterns
4. National Academies advisory: April 25 Symposium on Forensic Evidence
5. Evidence for expanded color vision for some colorblind individuals
6. Evidence of waterfowl mediated gene-flow in aquatic invertebrates
7. Evidence that human brain evolution was a special event
8. Evidence that learning is consolidated during sleep
9. Evolution of symbiosis
10. Surprising symbiosis: Glassy-winged sharpshooter eats with friends
11. Mutation in a single gene switches a fungus-grass symbiosis from mutualistic to antagonistic

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


(Date:7/4/2020)... ... July 03, 2020 , ... ... earn outstanding recognition and multiple awards for not only the products and treatments ... SoME® Skincare and Vivace® Microneedle RF. All the brands built by ABM have ...
(Date:7/1/2020)... ... July 01, 2020 , ... Cure Glioblastoma, a ... most common and aggressive adult brain cancer—announced today the appointments of its first ... charged with supporting the organization’s initiatives and overall vision. , "Senior Fellows are ...
(Date:6/23/2020)... ... June 23, 2020 , ... Kemp ... announced that the company has received ISO9001:2015 certification for the development and ... industries. The decision to pursue ISO9001 accreditation demonstrates Kemp’s commitment to a ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... (PRWEB) , ... July 29, 2020 , ... R3 Stem ... injections for only $3950. With 50 million stem cells total, patients may choose which ... cell therapy works for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical ...
(Date:7/31/2020)... ... 29, 2020 , ... Anomet Products has introduced new custom ... use with CRM, neurostimulation, vascular, and related devices. , Anomet Medical Clad ... performance, and cost criteria; especially where solid wire is limited. Typical configurations for ...
(Date:7/31/2020)... ... July 29, 2020 , ... The SDX® Respiratory Gating ... countries, has reached its 20th anniversary of worldwide use. Introduced in the US ... universities including University of Pennsylvania, University of Michigan, University of Maryland, University of ...
(Date:7/18/2020)... , ... July 16, 2020 , ... After research model ... completion of a great surgery is only the beginning of a successful study, while ... community. , Join Brad Gien, Global Head of Surgery from Envigo in ...
Breaking Biology Technology:
Cached News: