Navigation Links
Unusual symbiosis discovered in marine microorganisms
Date:9/20/2012

e in the 1- to 3-micron size range.

"Aside from the importance of nitrogen fixation in marine ecosystems, this is such an interesting symbiosis from an evolutionary perspective, because it can be seen as analogous to an early stage in the endosymbiosis that led to chloroplasts," Zehr said.

Chloroplasts, which carry out photosynthesis in all plants, evolved from symbiotic cyanobacteria that eventually became incorporated into their host cells in a process known as endosymbiosis. In the newly discovered nitrogen-fixing partnership, the cyanobacteria are mostly seen in an indentation at one end of the host cell.

"At this point, it's unclear exactly how the cyanobacteria are associated with the host cells. It looks like there may be a little groove in the host cell where the cyanobacteria fits," said Thompson. "The association is robust enough to go through the cell sorter and other preparations, but delicate enough that they separate if they're filtered or frozen and thawed."

In previous work, Zehr's team had studied the cyanobacteria, which they called UCYN-A, in samples processed at sea and brought back to the lab for cell sorting and genetic analysis. Despite being unable to grow it in the lab, they were able to sequence the microbe's complete genome and discover that it was missing the genes for several key metabolic pathways, suggesting that it might live in association with another organism. Thompson said researchers were only able to see the symbiotic partners together when they sorted freshly collected seawater samples on board the ship.

"Our collaborators at the University of Hawaii, Dave Karl and Ken Doggett, put a cell sorter into a portable laboratory, like a lab in a box, so now we can take the machine to sea and sort cells that minutes before were in their natural environment. That's how we found the association," Thompson said.

The exchange of carbon and nitrogen between the two partners was demonst
'/>"/>

Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. New forensic institute at the University of Leicester will help police forces solve unusual crimes
2. Unusual weather events identified during the Black Saturday bushfires
3. Newly discovered letters and translated German ode expand Texas link to infamous Bone Wars
4. New potential targets discovered for treating squamous cell lung cancers
5. New Danish fungal species discovered
6. New neural pathway controlling skeletal development discovered
7. Darwin discovered to be right: Eastern Pacific barrier is virtually impassable by coral species
8. Compound discovered that boosts effect of vaccines against HIV and flu
9. U of M researchers: Newly discovered genetic markers could signal colon cancer development
10. Key to burning fat faster discovered
11. 2 new owls discovered in the Philippines
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/31/2014)... WCS study confirms that endangered musk deer still live ... sighting, Species targeted by poachers: Musk deer scent glands ... the October issue of the journal Oryx ... 60 years after its last confirmed sighting, a strange ... forested slopes of northeast Afghanistan according to a research ...
(Date:10/31/2014)... source that emits over a wide part of the ... currently being built in Lund, Sweden. The MAX IV ... team putting together its component parts in a storage ... of just a few hundred metres. Nevertheless, if these ... class of experiments that require source brightness and transverse ...
(Date:10/31/2014)... Haven, Conn. – Geologists are letting the air out of ... Earth. , Scientists have long speculated as to why animal ... surface. Animals began to prosper at the end of the ... about the billion-year stretch before that, when most researchers think ... the air wasn,t so great then, after all. , In ...
Breaking Biology News(10 mins):Strange, fanged deer persists in Afghanistan 2A new generation of storage -- ring 2Lack of oxygen delayed the rise of animals on Earth 2
... is available in German . , Metabolomics aims ... cell or a tissue. The exponents of bioinformatics analyzed data ... healthy and diabetic mice. In each case, a subgroup of ... more than 800 metabolites were quantitatively determined in a blood ...
... flower and plant growers know all too well that ... and deterring healthy growth of potted ornamental plants. To ... expensive practice of paying workers to hand-weed containers. Some ... on the wide range of plant species produced in ...
... July/August 2008 issue of BioScience are as follows: ... Joan Burnside, and Scott V. Edwards. , An increasingly broad ... expanding what has been learned from studies based on the ... of the whole class. ***************, Penguins as Marine ...
Cached Biology News:Healthy or diseased? 2Ethanol byproduct produces green results 2BioScience tip sheet July/August 2008 2BioScience tip sheet July/August 2008 3
(Date:10/31/2014)... 31, 2014 The report "Offshore Support ... Vessel, Platform Supply Vessels, Multi-Purpose Service Vessel, Crew Boats, ... - Global Trends & Forecast to 2018", defines and ... forecasting of the global revenue. , Offshore support vessel ... in 2013 to $ 91,228.8 Million by 2018, with ...
(Date:10/31/2014)... , October 31, 2014 Huge ... barometer of future pharma industry health, analysis and forecasting   ... Live, celebrates the closing of its most successful show ... attendees and 2,500 exhibitors. Held this year in ... makers and key players from 140+ countries representing every ...
(Date:10/31/2014)... 31, 2014 Having access to safe ... uphill battle in many corners of the globe. It’s ... community in northwestern Bolivia where many have been sickened ... from Fairfield University’s School of Engineering has been working ... Campesina (UAC), “the united college for the peasants.” A ...
(Date:10/31/2014)... London, UK (PRWEB) October 30, 2014 Caustic ... salts, epoxy resins and polycarbonates. At present, China takes lead ... , Dow, which possesses a number of facilities in ... player in the world caustic soda market in terms of ... is forecast to grow on average by 3% per year ...
Breaking Biology Technology:Offshore Support Vessel Market Projected to Reach $91,228.8 Million by 2018 - Report by MarketsandMarkets 2Offshore Support Vessel Market Projected to Reach $91,228.8 Million by 2018 - Report by MarketsandMarkets 3Offshore Support Vessel Market Projected to Reach $91,228.8 Million by 2018 - Report by MarketsandMarkets 4CPhI Worldwide 2014 Announces Biggest Ever Show and Points to Pharma Growth in Brazil, Russia and Fast Emerging Africa 2CPhI Worldwide 2014 Announces Biggest Ever Show and Points to Pharma Growth in Brazil, Russia and Fast Emerging Africa 3CPhI Worldwide 2014 Announces Biggest Ever Show and Points to Pharma Growth in Brazil, Russia and Fast Emerging Africa 4CPhI Worldwide 2014 Announces Biggest Ever Show and Points to Pharma Growth in Brazil, Russia and Fast Emerging Africa 5CPhI Worldwide 2014 Announces Biggest Ever Show and Points to Pharma Growth in Brazil, Russia and Fast Emerging Africa 6Fairfield University School of Engineering project reduces illness in rural community 2Fairfield University School of Engineering project reduces illness in rural community 3China to Dominate Caustic Soda Market Through 2018, Says Merchant Research & Consulting in Its New Study 2
... 14 Bionovo, Inc.,(Nasdaq: BNVI ) announced ... Board of Directors. Mr. Drapeau has extensive financial,management ... "We are quite excited to have access to ... CEO. "Lou is particularly well versed,in the unique ...
... CALGARY, March 14 /PRNewswire-FirstCall/ - SemBioSys Genetics ... portfolio of therapeutic,proteins for metabolic and cardiovascular ... an important step forward in the,commercialization of ... an,exclusive global alliance with Bioriginal Food and ...
... Express, the advance online publication of the journal ... mark an important step toward understanding a longstanding ... presented their findings at the annual meeting of ... problem the physicists addressed is how a fundamental ...
Cached Biology Technology:Louis Drapeau Joins Bionovo's Board of Directors 2Louis Drapeau Joins Bionovo's Board of Directors 3SemBioSys' GLA Partner Enters Strategic Alliance for the Sales and Marketing of GLA-Rich Safflower Oil 2SemBioSys' GLA Partner Enters Strategic Alliance for the Sales and Marketing of GLA-Rich Safflower Oil 3Physicists discover how fundamental particles lose track of quantum mechanical properties 2Physicists discover how fundamental particles lose track of quantum mechanical properties 3
Prepared by multi-temperature ethanol fractionation with extensive charcoal treatment and dialysis.• Assay: ≥ 95 % (HPCE)• pH ~5.2 (10 mg/mL in 0.15 M NaCl)...
... DAPI (4,6-diamidine-2-phenylindole, dihydrochloride) is a ... nucleus blue in color. The ... contrast to red fluorochromes such ... or R-Phycoerythrin. DAPI can be ...
... (CYP450) metabolite postulated to play an autacoid ... In rat cerebral microvessels, 20-HETE is a ... is excreted mainly as the glucuronide conjugate. ... in human urine) is about 10-fold lower ...
Rabbit polyclonal to Quinaldic Acid ( Abpromise for all tested applications). Antigen: Synthetic peptide Quinaldic Acid conjugated to a protein carrier....
Biology Products: