Tag: "reproduce" at biology news

Virus-host interactions at sea effect global photosynthesis

...ich the authors speculate could allow the virus to reproduce in nutrient-poor environments, and all three cyanophages carry genes involved in metabolizing carbon. The absence of such genes in terrestrial phages, the authors argue, lends support to the notion that marine phages have evolved different adaptive m...

Researchers reveal the infectious impact of salmon farms on wild salmon

...ng cloud of contagions. Sea lice larvae mature and reproduce on the seaward salmon with each louse producing 300-800 eggs. This second round of lice larvae can re-infect the fish in the school and can spread to other previously unexposed populations coming from geographically disparate regions. "At about the 3...

New insights into skin blistering disease pop up

...sful cloning of human antibodies in pemphigus that reproduce the disease in vitro and in mice, and offer a new opportunity for the development of therapies to treat this deadly disease. These results add to our understanding of cell adhesion in general and the pathogenesis of pemphigus disease....

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

... artificial muscles that can stiffen at will could reproduce this walking behavior," said Full. "The wonderful thing about soft robotics is that it's infinitely adaptable, unlike the few degrees of freedom of rigid robots." Huffard first noticed the coconut octopus, Octopus marginatus, dancing along the sand i...

Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals

...e adenovirus that readily enters cells but doesn't reproduce itself. Ahrens injected the vector carrying the MRI reporter gene into brains of living mice and imaged the MRI reporter expression periodically for over a month in the same cohort of animals. The research showed no overt toxicity in the mouse brain ...

Classical subject underpins new biomedical advances

...er to keep its 30kg of cells warm, fed and able to reproduce in 20 litres of water. To achieve this, cells need to overcome a major paradox -- the transfer of information, nutrients and waste products across fatty cell membranes which are designed to limit the transfer of these important molecules in order to ...

Chemical engineer Kao explores antibiotic synthesis with DNA chips

...ssful reverse engineering hinges on the ability to reproduce the mechanism of overproduction in new strains. Ideally, the exact sequence of base pairs causing the mutation could be found and then directly introduced into a new strain. Drug companies use chemicals and radiation to damage DNA and induce mutation...

FSU anthropologist leads incredible journey through 'hobbit' brain

...titute of Radiology in St. Louis used a process to reproduce the hobbit's external brain features, creating an endocast -- a three-dimensional model -- based on computer tomography (CT) data gathered in Indonesia. Falk also created a physical endocast out of latex. Together they provided a detailed map of impr...

New system can measure productivity of oceans

...and then determines the original formula needed to reproduce the paint chip.To fully use this approach, new satellite systems will be necessary that can more accurately determine both the color and brightness of marine waters, Behrenfeld said. He and colleagues are already working on a satellite concept to do ...

Blocking cell signaling can stymie viral infections, study shows

...ied by interfering with signals used by viruses to reproduce in human cells. The results, reported in the Febr...es to propel themselves from infected cells and to reproduce in new cells. In laboratory samples of monkey kidney cells, the drug prevented the smallpox virus fr...

UI researchers advance understanding of sexual evolution

...uction in a single-celled organism long thought to reproduce asexually, according to a paper published in the January 26, 2005 issue of the journal Current Biology. The finding by John M. Logsdon, Jr., assistant professor in the UI College of Liberal Arts and Sciences Department of Biological Sciences and the ...

Big, old fish key to restoring groundfish stocks

...ecies." Black rockfish, for instance, can begin to reproduce at about five years of age, but need to be about 12 years old with heavier amounts of fat before they can produce the type of "oily" eggs that may have increased survival chances. Larvae from the oldest fish can survive starvation 2.5 times as long a...

MIT team aims to mend broken hearts

...greatest challenge," said Vunjak-Novakovic, "is to reproduce this with human cells, and test how all this works in the body."...

Study reveals developing countries with recipe for thriving health biotech industries

...found. Recombinant vaccines are relatively easy to reproduce and can be much more cost-effective way to deal with infectious diseases than drugs. India, for example, is developing vaccines for hepatitis B and C as well as South Africa HIV/AIDS. "With limited resources and underdeveloped private...

Scientists generate human islet precursor cells in culture

...alled human islet-derived precursor cells (hIPCs), reproduce easily. The researchers observed that the hIPCs s..., there must be cells within the pancreas that can reproduce and efficiently differentiate into hormone-producing cells or even intact islets. The challenge was...

Study in Royal Society journal on evidence for impact of global warming on bird populations

...est species. This further suggests that ability to reproduce in warmer and warmer conditions is a key component of species sensitivity to climate change. Contact: Dr Romain Julliard, CRBPO-Museum National d'Histoire Nat., 55 rue Buffon, PARIS, F-75005, France Proceedings of The Royal Society A: Mathematical, ...

Genome of ancient fish could reveal evolutionary mysteries, Stanford scientists say

... their lifespan might be at issue. Where most fish reproduce quickly and have short generation times, the coelacanth reproduces slowly and gives birth to live young. This means that the coelacanth has had fewer generations of offspring to accumulate mutations. The fact that coelacanth is available ...

Sex versus survival: A tradeoff at geographical range limits

... harsh northern climates are losing the ability to reproduce sexually, an evolutionary phenomenon similar to th...populations," he continues. "A shift in how plants reproduce will also greatly affect whether or not they will be able to move with changing climates, especially...

Researchers grow sperm stem cells in laboratory cultures

...of cellular growth factors needed for the cells to reproduce themselves outside the body. Known as spermatogon...uld implant a new gene into a spermatogonial cell, reproduce a large number of spermatogonial cells in the culture medium, and then implant the cells into recipi...

Economics and ecology combine at UGA in NSF-funded study of evolutionary game theory

.... While not outwardly rational, viruses mutate and reproduce with alarming speed," he said. "By using an explicitly game theoretic framework, we can simultaneously capture how humans respond to the virility of a disease, and how viruses respond to treating a disease." "We are then in a position to design bette...

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(Date:10/16/2014)... 16, 2014 NXT-ID, Inc. (NASDAQ: ... biometric authentication company focused on the growing mobile commerce ... including Wocket™, the Smart Wallet, at the 13 th ... a leading global conference on the intersection of technology ... Mark Anderson , founder and publisher of the Strategic ...
(Date:10/15/2014)... The book ,Models of Life, is a non-traditional biophysics ... itself. The book is a journey of discovery into ... of life and biological regulation. It is about how ... strategic communication between the billions of cells in an ... the relationships between principles, which can be found on ...
(Date:10/15/2014)... Researchers have linked increased resistance to bacterial pneumonia in ... sex hormone estrogen. , Females are naturally more resistant ... of scientists has shown that increased resistance to bacterial ... nitric oxide synthase 3 (NOS3). They also show that ... the female sex hormone estrogen. , The team, lead ...
Breaking Biology News(10 mins):NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3New book about life as seen from physics 2
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