Navigation Links
UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
Date:3/5/2012

(Santa Barbara, Calif.) What good is half an eye? Evolutionary biologists studying the origins of vision get that question a lot, and new research out of UC Santa Barbara points to a possible answer. Findings appearing today in the journal BMC Biology indicate that, even in the absence of eyes altogether, some creatures display a light-sensitivity that uses the same visual pathway that allows humans to see.

Todd Oakley, professor in UCSB's Department of Ecology, Evolution, and Marine Biology, co-authored the paper about the genetic behavior of hydra, a freshwater polyp. Along with jellyfish, sea anemones, and corals, hydra are part of the animal family Cnidaria, who use stinging cells, or cnidocytes, to catch prey. Hydra tentacles contain barbed, poison-containing cnidocytes that they use to stun animals, such as water fleas and plankton, before eating them alive. They also use their cnidocytes for self-defense and locomotion.

The research conducted at UCSB revealed that light, or the lack thereof, has a direct effect on hydras' propensity to fire their stinging cells a discovery Oakley said "tells us something completely new about the biology of these animals, and we think this could extend to other cnidarians."

"Hydra stinging cells were already known to be touch sensitive and taste sensitive, but no one had ever thought before to look for light sensitivity probably because they don't have eyes," Oakley said. "We're the first to have found that. And we found not only that light-sensitivity genes are expressed near hydra stinging cells, but that under different light conditions, these cells have different propensities to be fired."

Studying the hydra in both bright and dim conditions, the researchers discovered that bright light actually inhibits the firing of the stinging cells possibly because their prey are more active at dusk and after sunset, said Oakley. He suggested that light could be acting as "a
'/>"/>

Contact: Shelly Leachman
shelly.leachman@ia.ucsb.edu
805-893-8726
University of California - Santa Barbara
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. UC Santa Barbara researchers new study may lead to MRIs on a nanoscale
3. University of California Santa Barbara study reveals how gas, temperature controlled bacterial response to Deepwater Horizon spill
4. Argentinas Santa Fe government reducing lead ammunition for sports hunters
5. New data published in Nature Genetics demonstrate that tiny LNA-based compounds developed by Santaris Pharma A/S inhibit entire disease-associated microRNA families
6. Marine Protected Areas Federal Advisory Committee meets Nov. 2-3 in Santa Barbara
7. Santa Fe homeowners weigh in on landscape preferences
8. Researchers study effect of yuma desalting plant on Cienega de Santa Clara
9. CNIC and Banco Santander set up research project on early cardiovascular risk factors
10. UC Santa Barbara and Burnham Institute for Medical Research announce director
11. Rudolfs kin more than just Santas ride
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
(Date:12/17/2014)... DUBLIN , Dec. 16, 2014 Research and Markets ... of the "Global Chemical Sensor Market 2015-2019" ... http://photos.prnewswire.com/prnh/20130307/600769 One major trend upcoming in ... in biomedical applications. Chemical sensors help in recording of ...
(Date:12/11/2014)... DUBLIN , Dec. 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced the addition ... 2015-2019"  report to their offering. One ... technology. With continuous advances in technology, it is important ...
(Date:12/11/2014)... Minn. , Dec. 10, 2014  Data Sciences ... monitoring, has released a new series of digital ... preclinical toxicology researchers. M series, part of the ... collect the best possible physiologic data when incorporating ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2New telemetry implants expected to change how large animal toxicology studies are conducted 2
... voices is second nature to humans. Certain primates also ... social groups are also able to do so, however, ... for meerkats. They coordinate their activities with calls, such ... for instance, and thus stick together as a group. ...
... publishing workflow of eight journals published by Pensoft has ... data archiving for data files associated with articles in these journals. ... the online editorial management platform, Pensoft Journal System (PJS). The ... MycoKeys , BioRisk , NeoBiota , Nature Conservation ...
... Studies have estimated that converting manure from the 95 million ... equal to 8 billion gallons of gasoline, or 1% of ... and more farmers and communities are interested in generating renewable ... information on the economic feasibility and sustainability of such programs. ...
Cached Biology News:Meerkats recognize each other from their calls 2Data publishing in Pensoft journals integrated with the Dryad Data Repository 2Does converting cow manure to electricity pay off? 2
(Date:1/22/2015)... SAN DIEGO , Jan. 22, 2015   ... company, and Sequenom, Inc. (NASDAQ: SQNM ... a development agreement for next generation noninvasive prenatal ... Cypher,s genome interpretation technology, called Mantis™, to advance ...
(Date:1/22/2015)... Jan. 22, 2015   GenoSpace , a precision medicine software ... enable the broad use of genomic, imaging and other biomedical ... of Michelle Munson , CEO of Aspera, an IBM ... Logo - http://photos.prnewswire.com/prnh/20150122/170713 "We are ...
(Date:12/25/2014)... The report “Service Quality Management and Telco ... Type - Global Advancements, Worldwide Forecasts & Analysis (2014-2019)” ... and forecasting of revenues. , Browse 152 market ... in-depth TOC on “Service Quality Management (SQM) and Telco ...
(Date:12/24/2014)... NEW YORK , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, ... in critical areas, announced the closing of an underwritten public ... purchase up to an aggregate 3,500,000 shares of common stock, ... per warrant.  The warrants have a per share exercise price ...
Breaking Biology Technology:Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4GenoSpace Expands Board with Appointment of Michelle Munson 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3
... MDCT Sub-study to be Released Concurrent with AHA PresentationSAN ... VIAP ), a biotechnology company focused on the ... metabolic disease, today announced that an abstract on the ... accepted for a poster presentation at the American Heart ...
... Intercell AG (VSE: ICLL) today announced that it ... U.S. Food and Drug Administration,s (FDA) approval of IXIARO(R), ... (JE). The initial target for use of Intercell,s vaccine ... U.S. market - will be adult travelers and military ...
... Inc. announced that its wholly-owned subsidiary, Innocoll Pharmaceuticals, has ... Sponge for the management of painful wounds. It ... suffer from chronic wounds (venous stasis ulcers, pressure ulcers, ... chronic wounds do not heal within 5 years. ...
Cached Biology Technology:VIA Pharmaceuticals to Present Poster at AHA Arteriosclerosis, Thrombosis and Vascular Biology Conference 2009 2VIA Pharmaceuticals to Present Poster at AHA Arteriosclerosis, Thrombosis and Vascular Biology Conference 2009 3VIA Pharmaceuticals to Present Poster at AHA Arteriosclerosis, Thrombosis and Vascular Biology Conference 2009 4Intercell to Host Conference Call and Webcast Today on FDA Approval of IXIARO(R) Japanese Encephalitis Vaccine 2Intercell to Host Conference Call and Webcast Today on FDA Approval of IXIARO(R) Japanese Encephalitis Vaccine 3Innocoll, Inc. Files 510 (k) Application for CollaRx Lidocaine Sponge 2
... , Galaxy LIMS, Sophisticated Bioinformatics , Proprietary ... ,We offer individual sample sequencing of PCR ... single or double strand publication quality. ... of interest is 1.3 to 7 kilobytes ...
Shotgun library construction and high-throughput DNA sequencing of microbial genomes, BACs, adenoviruses, phosmids and cosmids. LIMS tracking utilizing Geospiza's Finch system....
...
... Sciences can provide custom microplate coating using advanced automated high ... of plate formats. We can also accommodate virtually any lot ... 0.5-320 L):, , 8 ... well microplate, 384 well microplate, ...
Biology Products: