Altered Genes, Altered Metabolism--Longer Life?
... of glucose metabolism in times of stress helpsthe worm live longer. Dr. David Finkelstein, of NIA's Biology of Aging program says, "this findingsuggests that altering glucose metabolism could be a key to slowing aging inhigher organisms, even perhaps in humans." The daf-2 gene is in the same familyof pr...Ant Pheromone May Aid Alzheimer's Patients
...h to follow the trail back to the prey-- perhaps a worm or grub or an adult insect of some kind. Then they attack theprey with their stings, inject a neurotoxin that paralyzes muscles and drag theprey back to the nest." Gas chromatographic and mass spectrometric analyses in the Cornell laboratoryident......versaCorp., San Diego, Calif. "Because the Pompeii worm survives such a broad temperature gradient, so too...hen, Frenchresearchers reported spotting a Pompeii worm in water nearly twice as hot(221°F/105°C). But, Cary says, that exposure was fleeting, and t...At Life's Most Sensitive Stage, Embryos Cope With Stress
...porter as one mechanism that an adult fatinnkeeper worm uses to survive in some of the most polluted mud flats along thePacific coast. At the AAAS meeting, he presented data showing that the worm'sembryos use MDR transporters as well, as a first line of defense against eventiny amounts of toxins. For the ...Plants Thrive With Insect-Induced Immune Responses
...nts grew to the four-leaf stage he caged a cabbage worm -- thelarval stage of the cabbage white butterfly -- onto one leaf of each plant insuch a way that the caterpillar could feed on the leaf. He also grew two sets of control plants: one group in which a leaf on eachplant was clipped off at the base of...Tiny Worm Reveals Workings Of Suspected Tumor Protein
...de C. Elegans BOSTON--March 27, 1998--The tiny worm that has become a darling of developmentalbiologis...lable for simpler animals. Shi joined the worm community because of his interest in viraloncogenesis. From earlier work, he knew that the adenoviru...New Microbial Insecticide As Potent As Bt
... infects and kills insects with the help of a tiny worm or nematode. The toxins produced by Photorhabdus are active against a wide range of insectsand are at least as potent as the insect-killing poisons produced by Bacillusthuringiensis or Bt, the reigning king of natural insecticides, according toRichar...Counting X Chromosomes To Determine Sex
...nal, which they callSEX-1, that helps the nematode worm C. elegans tally its X chromosomes.SEX-1, a horm... signals are abundant enough to overwhelm XOL-1, a worm will developas a hermaphrodite. In XO animals, XOL-1 is not suppressed by many X signals andso can t...International Genome Team Deciphers Genetic Instructions For A Complete Animal
..., "When Bob and I started studying genetics in the worm in the mid-1980s itbecame clear that the best way ... Though most people have never heard of the short worm with the long name-theanimal measures about 1 millimeter from end to end; about 40 of them would spa...Science Announces Top Ten Research Advances Of 1998
... reached completion this year. The tiny C. elegans worm has long been aworkhorse for a wide variety of biological research topics, and its genome isthe first from a multi-cellular animal to be sequenced. The genetic informationwill allow researchers to break new ground in understanding the evolutionaryrel...Native Gray Ants Play Positive Role In Valley Peach Orchards
...wig borer, in its damaging larval stage, is a tiny worm thatfeeds on peach, nectarine, almond, plum and prune shoots or fruit . The pesthas about 30 natural enemies, which by themselves generally do not reduce peachtwig borer populations enough to avoid the damage that costs farmers money. However, nativ...... overcrowding, foodshortages or both, the emerging worm goes into a dormant period that can last aslong as...scientific teams have found mutations that sendthe worm into the dauer state at elevated temperatures. But even at normaltemperatures and without going int...UW scientists find a gene that controls organ shape
...an has been identified. Working in the microscopic worm C. elegans, a workhorse of modern biology,Kimble and Robert H. Blelloch, a doctoral and medical student in Kimble's lab,found that a protein, dubbed GON-1, is responsible for shaping the gonad, anintricate reproductive organ. In early development, go...Roundworm studies yield new insight into organ formation
...expand." To better understand the function of the worm metalloprotease, Blelloch andKimble plan to study ... andhumans," said Kimble. One theory is that the worm enzyme, like one of its vertebrate familymembers, snips apart a molecule called collagen that makes ...Common genes form new family tree for animals
...ee distinctkinds of animals: an unsegmented marine worm related to insects, an unusualmarine animal called a lamp shell, and a segmented worm related to earthwormsand leeches. Hox genes comprise part of a toolbox that is central to animaldeve...A few gut parasites could do you the world of good
...wel disease waspreceded by a decline in intestinal worm infections. Seventy years ago, he says,40 per cent...aining microscopic eggs of a species of intestinal worm thatdoesn't normally infect people. Although these worms can survive in the humangut, growing to abo...Invasion of alien parasite halted; California coast cleared of African worm in abalone
... have solvedthe problem of the case of an invading worm from South Africa -- one thatsettles in the shell ... squeamish, it should be noted that this parasitic worm does notinvade the abalone meat, and has never been a health threat. Instead, it managesto embed its...Scientists identify novel component of cell-fate pathway
..., theycould "rescue" them by injecting CKI. In the worm Caenorhabditis elegans, Graffand collaborators sho...nt signaling by producingthe same type of abnormal worm that results from blocking previously known Wntsignals. Other UT Southwestern scientists partic...Roundworms provide clues to human kidney disease
...females that produce sperm, which thehermaphrodite worm can use to self-fertilize the first 300 or so eggs...d by these two genes might perform similar rolesin worm and kidney cells. PKD1's function is still a mystery, althoughscientists do know that defective PKD1...Common parasite overturns traditional beliefs about the evolution and role of hemoglobin
...of to support this conclusion. They show that the worm actuallyconsumes oxygen -- which it finds toxic --...h also pointsto another function -- protecting the worm from NO that is present in the hostgut or produced by the host's immune system. "This abilit...