Navigation Links
Ancient symbiosis between animals and bacteria discovered
Date:6/27/2011

l other important intracellular symbionts come from this class, most notably the mitochondria, which are the crucial power plants in the cells of all higher organisms. The nitrogen-fixing root nodule bacteria of leguminous plants, as well as dangerous pathogens such as the causative agent of epidemic typhus, also belong to this class. In recent years several studies have presented evidence that the mechanisms in symbiotic and pathogenic relationships are similar or even identical. Future projects with Paracatenula and its symbionts called "Riegeria" could give fundamental insights into the mechanisms that have allowed Alpha-Poteobacteria several times to establish an intracellular lifestyle independently.

Another captivating detail of the Paracatenula Riegeria symbiosis is that the symbionts that live in specialized cells called Bacteriocytes account for up to 50 percent of the total tissue. That is significantly more than in all other known symbioses between animals and bacteria.

The Paracatenula-Riegeria symbiosis is 500 million years old

Based on genetic sequences of the symbionts the scientists have roughly extrapolated the age of the symbiosis the estimated age of 500 million years makes this symbiosis the oldest known animal bacteria association.

Comparing the phylogenies of hosts and symbionts, another subtle but non trivial detail was uncovered the worms have been passing on their symbionts to their offspring in every generation, without any symbiont switches for the last 500 million years. How this secured symbiont transmission is accomplished is the focus of the current studies in Jrg Ott's lab.


'/>"/>

Contact: Harald Gruber-Vodicka
harald.gruber@univie.ac.at
43-699-171-21909
University of Vienna
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Modern genetics vs. ancient frog-killing fungus
2. Genetic based human diseases are an ancient evolutionary legacy
3. 6,000km trip to reveal clues to ancient migration
4. Dry spells spelled trouble in ancient China
5. Ancient magma superpiles may have shaped the continents
6. Ancient African exodus mostly involved men, geneticists find
7. Male crickets with bigger heads are better fighters, study reveals, echoing ancient Chinese text
8. Decline of carbon-dioxide-gobbling plankton coincided with ancient global cooling
9. University of Leicester archaeologist uncovers evidence of ancient chemical warfare
10. Mountain caribous ancient ancestry revealed
11. Ancient geologic escape hatches mistaken for tube worms
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Ancient symbiosis between animals and bacteria discovered
(Date:4/17/2014)... COLUMBIA, Mo. April 17 In the most densely ... States, forests reflect two centuries of human needs, values ... logging and clearing forests for agriculture and development, have ... today, a U.S. Forest Service study reports. , The ... forest conditions and management needs in the Northern United ...
(Date:4/17/2014)... , Respiratory syncytial virus (RSV) is a ... life-threating illness in very young and elderly populations. ... enters host cells through the fusion protein RSV ... interfering peptides that prevent bundle formation limit RSV ... susceptible to degradation. In this issue of the ...
(Date:4/17/2014)... development of stem cell therapies to cure a variety ... cell populations based on cell surface markers. Researchers from ... that is highly expressed in a type of stem ... describe in an article in BioResearch Open Access ... publishers. The article is available free on the ...
Breaking Biology News(10 mins):Five anthropogenic factors that will radically alter northern forests in 50 years 2Five anthropogenic factors that will radically alter northern forests in 50 years 3JCI online ahead of print table of contents for April 17, 2014 2JCI online ahead of print table of contents for April 17, 2014 3JCI online ahead of print table of contents for April 17, 2014 4JCI online ahead of print table of contents for April 17, 2014 5JCI online ahead of print table of contents for April 17, 2014 6
... a goal the quickest way there" If the name ... the Weizmann Institute of Science, the pace might speed ... Nadav Kashtan, Elad Noor and Prof. Uri Alon of ... Systems Departments create computer simulations that mimic natural evolution, ...
... time ever discovered DNA from living bacteria that are more ... of still living organisms that old been found. The exceptional ... of cells and might even cast light on the question ... the current issue of PNAS (Proceedings of The National Academy ...
... Findings released today by the Health Department shed new light ... among workers who responded to the World Trade Center disaster ... Trade Center Health Registry, show that 3.6% of the 25,000 ... asthma after working at the site. That rate is 12 ...
Cached Biology News:Switching goals 2The world's oldest bacteria 2Survey finds elevated rates of new asthma among WTC rescue and recovery workers 2Survey finds elevated rates of new asthma among WTC rescue and recovery workers 3
(Date:1/15/2014)... FALLS, N.Y., Jan. 15, 2014   Niagara Thermal Products ... by Buffalo BioBlower Technologies LLC ("B3") as the critical ... 2 award from the Army Corps of Engineers.  B3 ... kills all biological contaminants and destroys VOCs and other ...
(Date:1/15/2014)... MINNEAPOLIS , Jan. 15, 2014 ­ RedBrick ... and behavior change technology, today announces that EmblemHealth ... insurer and wellness company, is now providing the RedBrick ... digital coaching program, to all of its members. EmblemHealth ...
(Date:1/15/2014)... January 15, 2014 Two champions of ... their sponsorship of an annual competition for middle and ... access to, innovative STEM study. The competition presents students ... Tests of Engineering Aptitude, Mathematics, and Sciences is ...
(Date:1/15/2014)... Freeslate, Inc ., the leading provider of ... one of India’s top five pharmaceutical companies, has received ... for high throughput solid form screening. , Lupin, ... range of quality, affordable generic and branded formulations and ...
Breaking Biology Technology:Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3
... Inc. announced the presentation of new data at the ... in Miami, Florida. The presentation was entitled "DAS181 ... Anti-inflammatory Effects in Animal Models of Asthma". , DAS181 ... drug candidate being studied in human clinical development for ...
... LONDON, November 9 Following ... Food and Drug Administration (FDA), privately,owned UK company Daval ... innovative,anti-inflammatory agent AIMSPRO(R) has been awarded an Orphan-Drug,designation for ... ALS, also known as Lou Gehrig,s ...
... Biosystems Inc. (the "Company") announces today that it has ... William Gastle, the Chief Executive Officer and James Long, ... 12, 2009 in connection with the annual audited financial ... The Company initially filed the annual financial statements for ...
Cached Biology Technology:NexBio(R) Presents Data Showing Anti-Asthma Activity of DAS181 (Fludase(R)*) at ACAAI 2009 2NexBio(R) Presents Data Showing Anti-Asthma Activity of DAS181 (Fludase(R)*) at ACAAI 2009 3
...
Sold individually or included in the MasterAmp™ PCR Optimization Kit without ammonium sulfate. Includes dNTPs, buffer, and varying amounts of MgCl2 and the MasterAmp™ PCR Enhancer (with be...
Protein Marker Detection Pack contains biotinylate...
JMJD2B Antibody...
Biology Products: