Navigation Links
UCLA life scientists' study of abalone yields new insights into sexual reproduction
Date:8/14/2011

pler acoustic technology to measure fluctuations of fluid motion in the environment where abalone naturally reproduce.

The biologists also devised an experimental technique by which they could generate the type of water flow and physical forces found in those habitats in a specialized tank. They used a computer and laser-based imaging system to study and quantify individual interactions between single sperm cells and single eggs, at long distances, away from any walls or boundaries. They are the first scientists to conduct such research.

"We now know properties of fluid motion that relate to the forces imposed at a microscopic scale on individual sperm and individual eggs as they interact," Zimmer said.

As part of the study, Zimmer and Riffell also developed mathematical models that describe the plumes of tryptophan that come off of eggs under a variety of physical conditions.

"We have theoretical models of what the plumes should look like, and images of eggs with sperm swimming around them," Zimmer said. "We mapped the empirical data on top of the theoretically predicted plumes. The question was whether sperm's attraction to eggs could be predicted from our theoretical models of the physics of what the plume looks like. The two mapped onto each other beautifully. The interaction could be predicted."

Because aspects of fluid flow in coastal ocean environments are remarkably similar to those in the human reproductive tract, the research could lead to methods to identify which human donors' sperm are the "most vigorous," with the highest probability of fertilizing an egg, Zimmer said. It may also suggest how to add fluid motion to maximize the probability of sperm fusing with an egg.

The study was funded by the National Science Foundation, the National Institutes of Health, the National Oceanic and Atmospheric Administration, and UCLA's Council on Research.

Scientists have been trying to descri
'/>"/>

Contact: Stuart Wolpert
swolpert@support.ucla.edu
310-206-0511
University of California - Los Angeles
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Scientists highlight link between stress and appetite
2. Scientists link shifting Atlantic mackerel distribution to environmental factors, changing climate
3. Scientists identify mutation in SIGMAR1 gene linked to juvenile ALS
4. Carnegie Mellon scientists discover how molecular motors go into energy save mode
5. Scientists copy the ways viruses deliver genes
6. Scientists explore the role of aeroecology in bat conservation and ecosystem health
7. Good prion-like proteins boost immune response, UT Southwestern scientists report
8. Many top US scientists wish they had more children
9. UCLA life scientists study of abalone yields new insights into sexual reproduction
10. USDA scientists study effects of rising carbon dioxide on rangelands
11. Scientists identify what makes us feel bad when were sick, how to treat it
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... Ga. The support of peer groups and ... breastfeeding programs, according to recent University of Georgia ... in the Athens-Clarke County area determined that role ... outcomes of mothers of infants. , "Mothers who ... successful at breastfeeding," said study co-author Alex Anderson, ...
(Date:8/28/2014)... Advocate and Senior Staff Attorney at the Electronic Frontier ... of biometric and mobile commerce experts set to speak ... Tampa, Florida on September 15, ... Rahman, Director, Technology and Strategy at Samsung, and Philippe de ... this year,s event is Mobility at the Crossroads of ...
(Date:8/28/2014)... (Maximizing Access to Research Careers) Program has announced ... of Sports Medicine,s Conference on Integrative Physiology of ... These awards are meant to promote the ... underrepresented groups into the mainstream of the basic ... young scientists at the American College of Sports ...
Breaking Biology News(10 mins):Breastfeeding study shows need for effective peer counseling programs 2Biometrics UnPlugged Welcomes the Electronic Frontier Foundation's Jennifer Lynch to the Mobility at the Crossroads of Commerce and Privacy Summit 2
... to control lens development in mice and humans is also ... as neurobiologists of the Max Delbrck Center for Molecular Medicine ... in which they had removed the c-Maf gene in the ... human carriers of a mutant c-Maf gene. People with such ...
... (February 20, 2012) Molecular biologist Ichiro Matsumoto, Ph.D., ... 2012 Ajinomoto Award for Young Investigators in Gustation, awarded ... an outstanding junior scientist who is an emerging leader ... made significant contributions to the understanding of the organization, ...
... on the rise and more than 120 countries now ... right to create a new, specialized global environmental agency, ... a keynote address to government ministers meeting Tuesday in ... Minister of Malaysia and former co-chair of the UN ...
Cached Biology News:The molecular basis of touch sensation 2Create effective new global environmental agency, ministers urged 2Create effective new global environmental agency, ministers urged 3
(Date:8/28/2014)... SunTrust Robinson Humphrey (STRH) today announced the ... research team in biotechnology and oilfield services.  ... demonstrates our commitment to providing our valued institutional ... decision making," said Biff Woodruff , Head ... significant investments in differentiated content at a time ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 A ... around the world is available from Strategic Consulting, ... companies. “ Industrial Microbiology Market Review, Fourth Edition: ... Market ” (IMMR—4) tracks and compares microbiology test ... North America, Europe and Asia, and forecasts future ...
(Date:8/27/2014)... August 27, 2014 Varian Medical Systems ... its current Salt Lake City manufacturing facility and allow ... Utah to ultimately create 1,000 new full time jobs ... , “Utah is home to hardworking people with immense ... credited with Varian’s success in the manufacturing of our ...
(Date:8/27/2014)... , Aug. 27, 2014   MSC , a ... safety, today announced the appointment of Mary Beth ... With 28 years of experience preparing companies for rapid ... as Executive Vice President of Corporate Development and Healthcare. ... improvement business , as well as corporate strategy and ...
Breaking Biology Technology:SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 32 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 2Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 3MSC names Mary Beth Loesch President and CEO 2
... ,ThalesNano Inc. has announced that commencing in October, it ... Chemistry in Flow"., "Flow chemistry has already had ... Jones, Director of Product Management for,ThalesNano Inc. "Still, most ... to start. Enabling these people to run their own ...
... (Nasdaq: MATK ) --,Martek Biosciences Corporation ... sole source supply agreement with Grupo Ricap. Martek ... produced by Grupo Ricap in,Mexico. Grupo Ricap is ... & life,sARA(TM) will initially be available in infant,formula ...
... for immune enhancement during cold & flu season, ... in,Nutrition Reviews (Vol. 66(9):526-531) by Dr. Barry W. Ritz, ... shown,how AHCC impacts the immune response against a number ... from in vivo studies evaluating,the effect of AHCC supplementation ...
Cached Biology Technology:World Leader in Bench Top Flow Chemistry Instruments ThalesNano, Inc. Introduces an 'Industry First' Seminar Series 2Martek to be the Sole Source Supplier of DHA and ARA for Infant Formulas Produced By Grupo Ricap 2Research Shows How AHCC(R) May Help Fight Flu and Other Infectious Agents 2
... The new Class II safety cabinets Heraeus ... protection and user-orientated design. ,The new frameless ... the work area. The new front window design ... posture. The large work aperture with a height ...
... Fluoroskan Ascent FL is ... and luminometric measurement technologies ... list of advanced features ... Luminoskan Ascent. Fluoroskan Ascent ...
... orbital shaker stands both present ... ergonomic height, and help protect ... welded tubular steel, these heavy-duty ... the weight and minimize the ...
... polymers) are prepared by ... the enzyme, polynucleotide phosphorylase, ... the appropriate, ribonucleoside diphosphate ... exception of catalog number ...
Biology Products: