Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Little-known Marine Decomposers Attract the Attention of Genome Sequencers

01.07.2009
Joint Genome Institute to sequence the genomes of four species of labyrinthulomycetes.

The Department of Energy's Joint Genome Institute (JGI) announced today that they will sequence the genomes of four species of labyrinthulomycetes.

These little-known marine species were selected for sequencing as the result of a proposal submitted to the competitive JGI Community Sequencing Program by a team of microbiologists led by Dr. Jackie Collier, assistant professor at the School of Marine and Atmospheric Sciences (SoMAS) at Stony Brook University.

“Labyrinthulomycetes are a huge group of organisms that behave ecologically like fungi,” said Dr. Collier. “But we know so little about them and there is more diversity among this group than among all the animals you can think of.”

Labyrinthulomycetes are single-celled marine decomposers that eat non-living plant, algal, and animal matter. They are ubiquitous and abundant—particularly on dead vegetation and in salt marshes and mangrove swamps. Although most labyrinthulomycetes species are not pathogens, the organisms responsible for eelgrass wasting disease and QPX disease in hard clams are part of this group.

In some regions, labyrinthulomycetes may be as important as bacteria in degrading organic matter. In coastal systems, the abundance of bacteria is tied to levels of organic matter from marine sources, while the abundance of labyrinthulomycetes is more closely tied to levels of particulate organic matter from land sources. This suggests that labyrinthulomycetes may play an important role in the marine carbon cycle by breaking down material that is difficult to degrade. Because labyrinthulomycetes—unlike bacteria—make long chain polyunsaturated fatty acids (PUFAs), they are also thought to improve the nutritional value of poor quality organic detritus.

“The genome sequences will provide a quantum leap in our understanding of the physiological capacity of these organisms,” said Dr. Collier. “The genes can tell us which enzymes a species is capable of producing, which in turn tells us what kinds of material they can potentially degrade and what role they play in a marine ecosystem’s food web.”

In addition, genomic information might suggest ways to exploit labyrinthulomycetes in novel biotechnological applications. Labyrinthulomycetes produce a wide array of enzymes and some species can degrade crude oil. Also, some labyrinthulomycetes are currently cultured for nutritional supplements. If PUFAs derived from labyrinthulomycetes were to replace fish oils and meal used in aquaculture and animal farming, it would likely reduce the number of fish caught for use as animal feed and have a positive impact on the health of the world’s oceans.

Donna Bannon | Newswise Science News
Further information:
http://www.stonybrook.edu

More articles from Life Sciences:

nachricht Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery
20.01.2017 | GSI Helmholtzzentrum für Schwerionenforschung GmbH

nachricht Seeking structure with metagenome sequences
20.01.2017 | DOE/Joint Genome Institute

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>