Photosystem I -- An Intermediate Step -- May Not Be Necessary For Plants
...ids, proteins and nucleic acids -- the fundamental components of life. But Owens and researchers from the Oak Ridge National Laboratory in Tennessee found that in some cases photosynthesis can occur in the absence of PSI, they report in the journal Science (July 19, 1996). The report, "Oxygenic Photoautotrophi...Surprising Protein Movement Seen In Cells
...ir identity amidst this rapiddiffusion of resident components now needs to be explained," saidthe senior author of the paper, Jennifer Lippincott-Schwartz,from the National Institutes ofHealth . Other biologists involved in the work were Nelson B. Cole andCarolyn Smith of NIH, Mark Terasaki from the University......as small as a single cell and identify many of its components with unusually high confidence, something that is ...ells in a sample -- do these contain new molecular components as clues to their formation? You could get a better idea of how a cell system works or how a single ...PET Project Helps Reduce Pollution Threat From Heavy Metals
...stall and relativelyinexpensive. There are two key components to the system. The first is a bedof oxide-coated sand which attracts and holds onto heavy metalsin the storm runoff. Lab-scale experiments demonstrated thespecial sand can dramatically reduce the concentrations ofpollutants such as lead, cadmium, cop....... They had todo a lot of research to find out what components are availableand what has to be machined. And they had to work within abudget." Each team, working within a $6,000 budget, had to design adevice, purchase or fabricate the parts, and assemble the finalproduct. Other projects developed this year inclu...New understanding of crab populations may not bring fishermen's delight
...simplify complex systems to the few most important components while minimizingdistortions. Modelers translate the relationships between those key componentsinto equations and plug them into a computer. A model "works"when the equations spit out answers that resemble the actual data. Then,the modelers believe th...Second Gene Responsible For Tuberous Sclerosis Complex Identified
...onal Human Genome Research Institute (NHGRI), both components of theNational Institutes of Health. Investigators located the TSC1 gene on chromosome 9. The gene makes a proteincalled hamartin, named after hamartomas, a type of tumor common to TSC andcomprised of multiple cell types. Affected individuals have ...Female Adolescents Need Calcium During 'Window Of Opportunity'
...e elements, electrolytes and water, and other food components will be released in the future by the National Academy of Science. Sources: Connie Weaver, (765) 494-8231; e-mail, weavercm@cfs.purdue.edu Lisa Jackman, (765) 494-6566; e-mail, jackmanl@cfs.purdue.edu Writer: Steve Tally, (765) 494-9809; e-m...Discovery Of Genetic Pathways May Provide New Ways To Combat Candida Infections
... used molecular biology techniques to identify the components of the filamentation circuit in yeast. With the recently completed yeast genome to guide them, the scientists began to knock out suspicious genes and, by a process of elimination, discovered the culprits that are responsible for filamentation. Once ...Gene For Last Major Form Of Batten Disease Discovered
...omplex molecules and breakingthem down into simple components that can be reused or eliminated. In LINCL,one of the many lysosomal enzymes that work together to degrade proteins ismissing and the normal breakdown process is interrupted. This results in abuildup of protein and abnormal deposits of the pigment ...Limits Of Life On Earth: Are They The Key To Life On Other Planets?
...olla, California, will conduct research on genetic components associated with survival in high-pressure conditions. In his studies, Bartlett will use so-called hyper-barophiles recently obtained from a high-pressure location at the bottom of the Japan Trench, a deep-sea location where pressures reach many tons...Oral Vaccine Protects Infants From Severe Rotavirus Diarrhea
... the LID group developed the additional individual components ofRRV-TV. Through a cooperative research agreement with Wyeth-Ayerst Inc. in 1987,commercial development of the RRV-TV vaccine began. "This vaccine didn't happen because of one person, it happened because of a lotof dedicated people," comments Dr....NSF Grant For Sphingolipid Research
...xcept bacteria, are known to function asstructural components in cells and as regulators of various biological processes. Little is known,however, about their role in plant growth and development. Lynch's research explores how and where in the cell sphingolipids are produced, transported, anddegraded. This pr...Folic Acid Fortification Effective In Cereal Grains
... involvedin the study with three associates. "The components of the cereal grain foods did not significantlyinterfere with the absorption of the added folic acid." On January 1, 1998, U.S. manufacturers of enriched cereal grain foods are required to add folicacid at a concentration of 1.4 micrograms per gram t...Natural Variability Is Key To River Restoration
...ade floods. They identified five often overlooked components of a river's flow regime (magnitude, frequency, duration, timing and rate of change), saying: "Modification of flow has cascading effects on the ecological integrity of rivers." (See "summary points," attached) Cornell ecologist Bain cited five exam...Genetic "Short Circuit" Leads To Cleft Palate
... level. The findings may help define the genetic components of cleft palate in humans, and also explain the li...ironmental factors, yet attempts to identify these components in human populations have so far produced inconclusive results. Investigators like Dr. Melnick feel...MIT Biologists Identify Aging Mechanism
...gest that the sheer abundance of ERCs could gum up components of themother cells' replication machinery, leading to an inability to replicate theDNA necessary for life. A WONDROUS PARADOX Armed with data suggesting that the accumulation of ERCs may be the aging clockitself, the researchers wondered, what set ...Mystery Of Vital Cell Protein Solved After 30 Years
...a compact molecular structurewith three functional components or domains, one that binds to nucleotides, onethat binds to drugs like taxol, and one that looks to be a binding site forother proteins. "The interaction between domains is very tight so that the effects thatnucleotides, drugs, and other prot...USGS 1999 Budget Emphasizes Clean Water, Disaster Information, Species And Habitat Research
...vernment efforts to improve waterquality. Specific components of the increase will enable USGS to evaluate nutrient loads andtransport in major rivers and ground-water systems,including a specific focus on contributors tohypoxia and toxic algal blooms in the Gulf of Mexico and other coastal waters; determine th...