Control of coleopteran insect pests through RNA interference

Article Abstract:

The ingestion of double-stranded (ds)RNA supplied in an artificial diet has triggered RNA interference (RNAi) in many coleopteran species, most notably the western corn rootworm (WCR) Diabrotica virgifera virgidera LeConte. Transgenic corn plants engineered to express WCR dsRNAs have shown a reduction in WCR feeding damage in a growth chamber assay, indicating that the RNAi pathway can be used for controlling the insect pests through in planta expression of a dsRNA.

Genetic aspects, Control, Beetles, Insect pests, RNA interference

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Nuclear transfer saddles up

Article Abstract:

Researchers from the University of Idaho in Moscow, and Utah State University in Logan have started producing cloned embryos in 1999, using mare oocytes and fibroblasts taken from mule fetuses, but none resulted in pregnancies. As the researchers believed that the key to success was calcium, they started to make changes in calcium concentration in the medium used for certain steps of cloning process, specifically, the activation step.

Idaho, Animal embryology, Fibroblasts, University of Idaho, Moscow, Idaho

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Leveling land mines with biotechnology

Article Abstract:

Biosensors, that are more effective and less expensive than current detectors are being developed at South Carolina-based Savannah River Technology Center by biotechnology researcher Carl Fliermans. Visual detection and metal detectors are time wasting and less reliable. Fliermans' method uses genetically altered bacteria which glows when they feed on trinitrotoluene (TNT), which leaches out of most land mines.

United States, Other Ordnance and Accessories Manufacturing, Surgical and Medical Instrument Manufacturing, Land Mines & Parts, Microbiological Strip Tests, Biomedical laboratory equipment, Land mines

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