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

SANTA CRUZ, CA--Scientists have discovered an unusual symbiosis between tiny single-celled algae and highly specialized bacteria. Their partnership plays an important role in marine ecosystems, fertilizing the oceans by taking nitrogen from the atmosphere and "fixing" it into a form that other organisms can use.

Details of the symbiosis, published in the September 21 issue of Science, emerged from the investigation of a mysterious nitrogen-fixing microbe with a drastically reduced genome. First detected in 1998 by Jonathan Zehr, a professor of ocean sciences at the University of California, Santa Cruz, it now appears to be the most widespread nitrogen-fixing organism in the oceans. The microbe belongs to a group of photosynthetic bacteria known as cyanobacteria, but it lacks the genes needed to carry out photosynthesis and other essential metabolic pathways. Apparently, its association with a photosynthetic host cell makes those genes unnecessary.

"The cyanobacterium is a nitrogen-fixer, so it provides nitrogen to the host cell, and the host cell provides carbon to the cyanobacterium, which is lacking the metabolic machinery to get its own carbon," said Anne Thompson, a lead author of the paper and postdoctoral researcher in Zehr's lab at UC Santa Cruz. Rachel Foster of the Max Planck Institute for Marine Microbiology is the other lead author and contributed equally to this work.

Although the partners in the symbiosis have not been grown in the laboratory, Zehr's team and their collaborators have been able to characterize both partners using cell sorting, gene sequencing, and other techniques. The host cell is a type of single-celled algae in a class known as "prymnesiophytes," which are found throughout the world's oceans. In seawater samples sorted by flow cytometry, which separates cells by size and color, the host cells were discovered among the "photosynthetic picoeukaryotes," a mixed population of tiny single-celled alga
'/>"/>

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:8/12/2015)... JOSE, Calif. , Aug. 12, 2015 /PRNewswire/ ... developer of human interface solutions, today announced that ... recently announced Match-in-Sensor solution, have officially been named ... Alliance. As part of the certification, Synaptics, Natural ... FIDO 1.0 Universal Authentication Framework (UAF) standard and ...
(Date:8/6/2015)... Germany , August 6, 2015 /PRNewswire/ ... SensoMotoric Instruments (SMI) shows the world,s first ... based on Epson,s Moverio BT-200 see-through head mounted display ... new solution, unprecedented quality and efficiency is brought to ... displays. For the first time, professionals and researchers can ...
(Date:8/4/2015)... Aug. 04, 2015 ... has announced the addition of the ... and Service), Sub-Segment (Computer Forensics, Network Forensics, ... Types, Service, Vertical and Region - Global ... offering. By Component (Hardware, Software, ...
Breaking Biology News(10 mins):Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 3SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 3Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2
... at Dana-Farber Cancer Institute and the Broad Institute of MIT ... genes that may serve as an Achilles, heel for many ... issue of the journal Cell , the researchers identified ... been identified as potential targets for cancer therapy. Unlike most ...
... A University of Toronto (U of T) team led by Engineering ... garnered third place and $40,000 (USD) for their design of a ... to the Bill & Melinda Gates Foundation,s Reinvent the Toilet Challenge, ... and affordable for people in the developing world that doesn,t have ...
... Uzuntarla from Bulent Ecevit University, Turkey, and his colleagues ... which is present in the nervous system. The article ... work has implications for explaining how noise, modulated by ... of neurons to external stimuli as part of the ...
Cached Biology News:'CYCLOPS' genes may serve as an Achilles' heel in tumor cells 2'CYCLOPS' genes may serve as an Achilles' heel in tumor cells 3University of Toronto wins third place at the Gates Foundation's Reinvent the Toilet Challenge 2
(Date:8/27/2015)... , ... August 27, 2015 , ... Inc. Magazine released ... ranking iLab Solutions as number 1,361 in growth for the three years through 2014. ... top 0.1% fastest-growing privately held organizations in the country. , “We are thrilled ...
(Date:8/26/2015)... , ... August 26, 2015 , ... ... announces today that a second US laboratory is to open in Manhattan, Kansas ... the continued partnership and long-term growth of research and development through collaboration with ...
(Date:8/26/2015)... Aug. 26, 2015  The Diabetes Research Institute ... of Miami Miller School of Medicine, announced today ... to test for the first time a novel ... This FDA approved Phase I/II study builds upon ... is an important first step toward the development ...
(Date:8/26/2015)... 26, 2015 China Cord Blood Corporation (NYSE: ... leading provider of cord blood collection, laboratory testing, ... today announced that the Company has been informed that ... wholly owned by Mr. Yuen Kam, chairman of the ... outstanding shares (the "Shares") of  Excellent China Healthcare Investment ...
Breaking Biology Technology:iLab Solutions Named to 2015 Inc. 5000 List 2iLab Solutions Named to 2015 Inc. 5000 List 3MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 2Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 4China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 2China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 3
... JERICHO, N.Y., March 13, 2012   Health Care ... Via Christi Health System of Wichita, Kansas has ... rate just two months after selecting and implementing ... COI disclosure process. (Logo: http://photos.prnewswire.com/prnh/20061010/NYTU194LOGO ...
... Allentown, Pa., March 13, 2012  Good Shepherd Rehabilitation ... in the rehabilitation of physical and cognitive disabilities, ... the United States. Ekso (formerly called eLEGS) is ... www.eksobionics.com ) that allows those with lower-extremity paralysis ...
... Pharma IQ has just published the results of ... management specialist with nearly half of those questioned having a ... samples. According to the survey results, 66.7 per ... as primary concerns in their current role or department: the ...
Cached Biology Technology:Conflict of Interest Management System Selected by Via Christi Health 2Conflict of Interest Management System Selected by Via Christi Health 3Good Shepherd Rehabilitation Network Becomes Third Health-Care Organization in U.S. to Have Ekso Exoskeleton 2Good Shepherd Rehabilitation Network Becomes Third Health-Care Organization in U.S. to Have Ekso Exoskeleton 3Pharma IQ's Compound Management Survey Report 2
Custom LNA Oligonucleotide synthesis ,High quality Custom LNA Oligonucleotides are available for a variety of different specialty applications and innovative products. ,Please inquire for further...
... Get better net results - with a ... and data management! The ChemStation Plus NDS ... control, data acquisition and data management, giving ... that meets your labs needs now and ...
... Solubility Service, We deliversoluble protein or ... technology yields the best soluble protein results ... each clone submitted , Powerful results on ... protein Solubility Optimization Service (SOS) uses proprietary ...
... The Schleicher & Schuell BioScience Arraying ... dedicated to custom protein and nucleic ... project teams, comprised of R&D, Engineering, ... closely with collaborators every step of ...
Biology Products: