Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'
...ted. That means they cannotbe stored and preserved indefinitely in the ground the ways seeds of manyother plants can. In her article in Botanical Journal of the Linnean Society, Snook warnsthat the way mahoganies reproduce makes them "vulnerable to logging,first because juvenile mahoganies are not found in the u...Northwestern Scientists Discover How Herpes Simplex Virus Infects Cells
...ablish latent infections innerve cells and persist indefinitely with periodic reactivation of thevirus. Consequences of viral replication include cold sores and feverblisters, similar lesions on the genitalia, corneal destruction,encephalitis and severe disease of newborns. The virus can bind to manytypes of huma......blish latent infections in nerve cells and persist indefinitely withperiodic reactivation of the virus. Consequences of viral replication includecold sores and fever blisters, similar lesions on the genitalia, cornealdestruction, encephalitis and severe disease in newborns. The virus can bind tomany types of huma...Plant Doctors Find Genetic Solution For Papaya Growers
...ors realizedthat Puna could not be kept virus free indefinitely and began a research programin the late 1980's to develop papaya resistant to the disease. The new transgenic line, 55-1, given the name "UH SunUp," and a hybrid between 55-1 and "Kapoho" (the dominant papaya cultivar grown in Hawaii) named "UHRain...Wisconsin Scientists Culture Elusive Embryonic Stem Cells
...dependent cell lines and has been able to growthem indefinitely in culture. They have observed the cells to differentiate intothe three primary germ lines that make up the body - endoderm, ectoderm andmesoderm - and subsequently into arrays of tissue cells such as cartilage, bone,muscle, neural and gut cells. For...Adult Cells Undergo Identity Switch Reported In Science
...ryonic stem cells are primordial cells that divide indefinitely andgive rise to the body's different cell types as they develop. However, althoughthese cells may have the potential to provide considerable benefits, they alsopose some controversial ethical implications because they come from humanembryos. Now, a ...... cells extended the healthy life span of the cells indefinitely - canwield its power in an unexpected way. The finding, reported in the current issue of Proceedings of the NationalAcademy of Sciences, could bolster efforts aimed at manipulating the enzyme fortherapeutic purposes - whether to prompt cell division ......al terrarium can keep its ecological balancenearly indefinitely without any care or maintenance. The secret to this self-sufficiency is that green or purple photosynthesizingorganisms generate their own source of life from the energy in light. Thisability allows them to divide and multiply in a stable manner. NA......tion of radionuclides inthe sludge will stay there indefinitely and what fraction could become mobileand enter the... the sludge, saysKrumhansl. Some should be stable indefinitely in an underground environment,even if left near the surface. The worse-case alternative is removing...Scientists develop most efficient mouse cloning strategy to date, create transgenic clone
...he development of an entire animal. They can grow indefinitely in culture and can also be genetically manipulated to carry extra genes or knock-out genes under study. Thus they provide researchers the perfect genetic tool to study cloning. Although the Federal government and most scientists believe human cloni...Gene therapy halts HIV replication in cells from infected patients
...s the possibility of prolonging the latency period indefinitely without the need for long-term antiretroviral treatment," said Stuart E. Starr, M.D., chief of Immunologic and Infectious Diseases at The Children's Hospital of Philadelphia, and a co-author of the study. "Early indications are that the antitat gene ...Genes for unusual flower within a flower are identified by UCSD scientists
...thin a flower, a repetitive process that continues indefinitely -- or at least until the smallest organs of the flower can't be detected. "They endlessly reiterate flower organs, they just keep on going and going," says Martin F. Yanofsky, a professor of biology at UCSD who headed the research team, which inclu...Biotechnology research to grow from embryonic start
...y also have the capacity to divide and proliferate indefinitely in culture. Scientists can use these two unique properties of stem cells to produce seemingly limitless supplies of most human cell types from stem cells, paving the way for the treatment of diseases by cell replacement. In fact, cell therapy has ...UC Berkeley demographer finds first evidence that maximum age at death in humans is rising
...iological constant. Whether or not this can go on indefinitely is difficult to say. There is no hint yet that the upward trend is slowing down," said Wilmoth. Wilmoth said that Swedish demographic statistics - considered the world's best records on birth and death - are a good indication of patterns in other in...UCSD biologist transform leaves into petals
...a flower within a flower within a flower continues indefinitely in plants with a trio of mutated SEP genes-or at least until the smallest organs of the flower can't be detected. Many roses, camellias and impatiens, as well as a host of other plants produce these double flowers. They must be grown from plant cutti...Is this the cell that could revolutionise medicine?
...o donated marrow samples. The cells seem to grow indefinitely in culture, like ESCs. Some cell lines have been growing for almost two years and have kept their characteristics, with no signs of ageing, she says. Given the right conditions, MAPCs can turn into a myriad of tissue types: muscle, cartilage, bone, l...Stem cell study provides new clues to origin of Down syndrome
...s with extra chromosome 21, and which can be grown indefinitely and used by a large number of scientists." Although the results presented in the current Lancet study are preliminary, identifying the faulty behavior of key genes that give rise to Down syndrome could ultimately lead to better treatments, including ...Scientists use llama droppings to help combat water pollution
...ainage, so it seems that the problem will continue indefinitely unless some local champions decide to find solutions of their own'.Drawing inspiration from some of the passive treatment systems developed in the UK, Professor Younger has been working with a local engineer, Marcos Arce, on preliminary experiments t...Stanford researchers develop gene therapy technique that sharply cuts risks
...to wedge itself into a chromosome where it remains indefinitely integrated, getting passed on when the cell divides. Current gene therapy approaches that cause genes to integrate use a viral vector to sneak the therapeutic DNA into the host cell, Calos said. However, the DNA inserts itself into the chromo...Study provides direct evidence of the role of telomeres in prostate cancer development
..., are considered immortal; that is, they will grow indefinitely until stopped, usually by cancer treatments. Cellular immortality is believed to occur, in the majority of cancers, when the normal shortening of telomeres is counter-balanced by activation of the enzyme telomerase, which functions to maintain the l...