New gene discovered for male fertility in plants
...tein that results from the EMS1 gene we discovered behaves like a protein kinase in the developing anther cells to promote the formation of the tapetum layer that appears to be critically important for the formation of pollen grains," Ma explains. He also speculates that these cells are programmed to become...Sex genes of fish disrupted by common household products
...e that endocrine disrupting compounds in the water behaves chemically like hormones in fish tissues and cells. When compounds such as polychlorinated biphenyls, dioxins, certain plasticizers, and some detergent additives are in streams or rivers, groups of fish, birds, frogs and other animals are sometimes f...Researchers produce motor neurons from embryonic stem cells
...uman ES cell lines before arriving at a cell which behaves as its mouse counterpart. But, in principle there is no reason why this type of approach might not be successful with human cells," he said....Surprising role for Staphs toxic shock toxin
...egulatory roles, and to determine how the organism behaves in the tissues....Virtual cells help unravel cell motion
...duces an animation that shows how the virtual cell behaves under different conditions. For example, by changing the pH gradient in the virtual cell, the researchers could reproduce the responses of a real cell. Mogilner is part of a large collaboration, funded by a National Institutes of Health "glue grant,...Study shows plants inherit traits from more than gene sequence alone
...ou've got something that looks like a mutation and behaves like a mutation, but it's actually caused by the packaging of the DNA and not by the DNA sequence itself," Richards said. The gene affected in the bal variant is involved in disease resistance and is called an R-gene. The research shows that ther......uses it for in its natural environment, the system behaves contrary to what we or an engineer might expect. In fact, the sensors hardly fire at all during movements initiated by the animal itself. "The implications of these experiments are particularly pertinent if the interpretations are to inform or lead ...Scientists using gene chips identify a unique form of leukemia
...L or AML. The message here is that when a leukemia behaves differently, doesnt respond to chemotherapy in the same way others do, and has this different genetic profile, then it should be recognized as a novel type of leukemia, said Armstrong. The gene snapshots also singled out a single gene that may prove...Scientistis say 'business-as-usual' is not an option with global change
...option," the declaration states. Because the Earth behaves as a single integrated system, climate change cannot be separated from changes in biodiversity, vegetation, land cover and ocean circulation. Climate change is a component of global change. Even if we were to completely stop emitting greenhouse gases...Undergrad's digital model of amoeba helps scientists study human cells
...simulates the inner workings of a tiny amoeba that behaves like a human white blood cell. Her electronic model is aiding biologists who believe these microscopic animals hold the key to creating new treatments for diseases ranging from asthma and psoriasis to cancer. Jane H. Kim, a senior majoring in biomed...New technique answers one of waters basic mysteries
...e number of these free protons determine how water behaves when it comes in contact with other substances, playing a crucial role in nearly any biological process that includes water. Since the 1950s, scientists such as Nobel Prize winner Manfred Eigen have been trying to catch water in the act of splitting,......his system as electrons are added. "The complex behaves as desired when electrons are added in the presence of water," Bullock says. That is, the central metal -- the positively charged, electron-hungry rhodium (Rh) -- collects the electrons and the complex kicks off two chlorides. But if we add the elect...Researchers unlock secrets of directional cell movement
...been studying an amoeba named Dictyostelium, which behaves like many chemotactic cells. This "social amoeba" responds to a chemoattractant known as cAMP, and its response allows it to commune with its fellow amoebae in survival maneuvers. Research in the last decade on Dictyostelium demonstrated that cells ...Recombinant protein may play key role in treating immunocompromised patients
...mised immune system. "If this recombinant vaccine behaves the same way in humans, the findings will have profound implications for developing safe vaccines to immunize similarly immunocompromised humans such as AIDS patients," says Dr. Richard Young, Member of the Whitehead Institute for Biomedical Research...Largest Acoustics Meeting In History Expected
...the applied forces after a few minutes, so that it behaves like a softer spring. Intriguingly, the rock remains soft for minutes or even hours, constituting a sort of "memory" of the past forces applied to it (4aPAc11). Paul Johnson of Los Alamos ( paj@lanl.gov ) will describe how the rock's elastic proper...A Fresh Look At Love And War Between The Sexes
...ulture and environment, influencesthe way each sex behaves in the high-stakes evolutionary game of reproduction. Such an interdisciplinary approach avoids the flawed conclusion that biology isdestiny. Low also discusses various explanations for the unequal size of male and femalegametes. That has been the r......ontinue to replicate," Dr.Roizman says. The virus behaves differently, however, in differentenvironments. In some people, it exists only in latent form. In others, ittriggers mouth or genital sores. And in one in 250,000, for reasons as yetunknown, it penetrates the blood-brain barrier, entering the cent...Tiny Jamaican Tree Crab Made Big And Fast Evolutionary Leap, Scientists Discover
...edges says. Because the bromeliad crab looks and behaves so differently from itsocean-dwelling neighbors, scientists thought the two species must have requireda long time to evolve from their last common ancestor--on the order of 50million years or so. Other scientists thought the tiny crab might, instead...Cancer Cells Self-Destruct When "Sweet Tooth" Is Thwarted
...ght even be possible to alter 2-deoxyglucose so it behaves in this manner." Dang and colleagues plan to begin testing 2-deoxyglucose and othersugar-stopping compounds in animal models of tumors soon. Other authors on the paper were Yoon Chun and Brian Lewis. Media contacts: Michael Purdy (410) 955......simulatedon Earth, but which affect how the ground behaves during earthquakes orhow powders are handled during the manufacture of drugs, cosmetics, andother products. The Mechanics of Granular Materials(MGM) experiment first flew on the STS-79 mission in 1996. On STS-89,it will make twice as many test runs ...