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Tag: "insect" at biology news

Biotech cotton 8: Bugs 0

..., a member of UA's BIO5 Institute and an expert in insect resistance to insecticides. "We found no net increase in insect resistance to Bt. If anything, resistance decreased. This is the opposite of what experts predicted ...

New molecule may aid in production of biofuels and fungi-resistant plants

... chitin metabolism. Insect viruses need to degrade insect chitin for infection. Fungi may also be combated by degrading the chitin in their cell walls." More than one billion tons of chitin are produced by insects, fungi, and marine organisms every year. Despite this abundant production, chitin does not ac...

New antifreeze protein found in fleas may allow longer storage of transplant organs

...produced by snow fleas is different from two other insect proteins discovered earlier at Queen's, the researchers say. "Unlike the antifreeze proteins in beetles and moths, AFPs in snow fleas break down and lose their structure at higher temperatures," explains Dr Davies, Canada Research Chair in Protein ...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

...ate that genome stasis may be a general feature of insect mutualists. Another important feature of B. penns...term genome stasis is a striking characteristic of insect mutualists, and it may severely constrain the evolutionary potential of these symbiotic microbes. H...

Shade trees getting 'scorched' by plant disease

...so predispose infected plants to other disease and insect problems. Practice sanitation. Branches that have died due to BLS should be routinely removed. Infected trees that are in a severe state of decline should also be removed. Use tolerant plants. In areas where BLS occurs, avoid planting highly susce...

K-State professors discover enzyme responsible for creation of a beetle's hard shell

...g knowledge about a molecular process required for insect development, but absent from humans and other vert...ing new, bio-rational methods for controlling pest insect populations," Kanost said. Armed with this new information, a number of practical applications are ...

Emerald Spectre haunts Ontario's ash forests

...he summer of 2002. A native of southeast Asia, the insect is capable of rapidly spreading with a little human help. Adult beetles lay eggs under tree bark and the feeding larvae kill trees by disrupting the flow of nutrients in the soft tissues under the bark. The new study funded by the Natural Sciences a...

Grasshopper love songs give insight into sensory tuning

...nvironmental sounds like the rustling of grass and insect communication signals such as grasshopper or cricket mating calls. They found that the OSEs of the receptors particularly matched characteristic features of species-specific acoustic communication signals used by grasshoppers to attract mating partn...

Fighting malaria by manipulating mosquitoes' sense of smell

...ss. Unlike insecticides, the chemicals involved in insect olfaction tend to be relatively non-toxic. They al...plication is not likely to impact other beneficial insect populations. The researchers intend to set up a pipeline for identifying and testing non-toxic chem...

Stolen gene allows insect virus to enter cells

A gene enabling an insect virus to enter new cells was likely stolen from a ...viruses, a group of viruses that can liquefy their insect hosts in a matter of days but don't induce so much as a sneeze in mammals, as potential pesticides. ...

Scientists get first glimpse at how plants, most animals repair UV-damaged DNA

...ve more of a chance of getting skin cancer than an insect or a frog." Scientists would like to develop drugs that use photolyase's mechanism to repair UV damage in human skin, but they've had trouble with the first steps ?replicating the photolyase reaction in the laboratory, and fully understanding it. Zh...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

... as well as diseases caused by mosquitoes or other insect bites are also a threat. Vibrio vunificus can also cause serious infections, either wound infections or blood poisoning (septicemia); V. vulnificus is a bacterium that is normally present in Gulf Coast waters and is usually contracted by eating ta...

Quick identification needed to save Florida's citrus industry from devastating disease

...th growers to quickly identify the disease and its insect hosts," said Ronald Brlansky, professor and plant pathologist with the University of Florida, CREC, Lake Alfred, FL. "Finding the extent of the disease and the removal of infected trees will reduce the damage done by this disease," he said. Plant pat...

MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools

...ation." The process is relevant to people because insect metamorphosis is analogous to the transformation of a human "from a juvenile, non-reproductive stage to a mature, sexually reproductive adult," says Thummel, a professor of human genetics at the university and an investigator with the Howard Hughes M...

Scientists find a maturity gene in fly

...ation." The process is relevant to people because insect metamorphosis is analogous to the transformation of a human "from a juvenile, non-reproductive stage to a mature, sexually reproductive adult," says Thummel, a professor of human genetics at the university and an investigator with the Howard Hughes M...

Hanging baskets of sex and death help fruit growers

... in the moth hoping for a sexual encounter and the insect leaves frustrated but covered in the virus which it then passes on to other moths when it does manage to have an actual encounter with another real moth. This results in direct contamination of eggs laid by the pest or contamination of the site where...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

...ntum. A flagellate protozoan, it uses as vector an insect resembling a midge, the sand fly, colonizing the intestine and then the salivary glands. The female insect feeds on mammals?blood. It can thus pass the parasite on to humans by a single bite. Once in the blo...

Possible treatment found for 'chemobrain'

...ogical control agent because it kills agricultural insect pests. Understanding its genome will increase insights into biological control, as well as into basic mechanisms of parasitism that may be applicable to parasites of humans. The zebra finch was chosen because it is a major model system for understan...

NHGRI Selects 13 More Organisms for Genome Sequencing

...ogical control agent because it kills agricultural insect pests. Understanding its genome will increase insights into biological control, as well as into basic mechanisms of parasitism that may be applicable to parasites of humans. The zebra finch was chosen because it is a major model system for understan...

The very defensive caterpillar

...challenge. These results raise important issues in insect research which will be reported by Dr. Ioannis Ele...oli), followed by exposure to a second, but lethal insect pathogen (Photorhabdus). Investigation of their blood then showed that antibacterial peptides were b...

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