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Tag: "pheromone" at biology news

Same-Sex Mating Discovered in a Toxic Fungus

...nents required for mating -- including pheromones, pheromone receptors and other genes with known roles in mating -- exhibited a defect in fruiting. The newly described mating strategy might allow a single mating strain to expand rapidly by cell division, yet retain its ability to generate diversity by underg...

Alarm pheromone causes aphids to sprout wings

... in Jena, Germany, now show that exposure to alarm pheromone also causes pea aphids to produce winged offspring...ids were shown to react mainly to the frequency of pheromone release and not the actual quantity present, possibly to avoid manipulation by plants. Thus, to redu...

Researchers discover key gene involved in bark beetle pheromone production

..."The goal of our research is ultimately to control pheromone production," said Gary Blomquist, professor and ch... responding to an "aggregation" pheromone. If this pheromone could be disrupted, the beetles wouldn't be able to organize a "mass attack" to successfully coloniz...

Hanging baskets of sex and death help fruit growers

...des a strong source of codling moth pheromone. The pheromone draws in the moth hoping for a sexual encounter an... sunlight and other elements, and the best form of pheromone lure. That test also helped them choose between a liquid and powder based mix for the virus - the l...

Male elephants woo females with precise chemistry

The exact chemical blend of a pheromone emitted by older male elephants in musth influence...ures are mirror images of each other. Frontalin, a pheromone discharged during musth by male Asian elephants from a temporal gland located between the eye and ea...

Past experience of pheromones induces dominant courtship behavior in fruit flies

By investigating the interplay between pheromone signaling and behavior in fruit flies, researchers...n adult. In particular, the researchers found that pheromone signals in the context of experience with adult flies can influence how young flies will behave once...

Leading lampreys to slaughter: Pheromone for scourge of Great Lakes identified

...lamprey larvae living in streambeds. Following the pheromone trail, adults are drawn to streams favorable for s...ning. Researchers have long wanted to identify the pheromone so it could be synthesized and used to control the sea lamprey, which laid waste to Great Lakes fish...

Jefferson scientists identify gene defect leading to abnormal skin development and cancer

...lamprey larvae living in streambeds. Following the pheromone trail, adults are drawn to streams favorable for s...ning. Researchers have long wanted to identify the pheromone so it could be synthesized and used to control the sea lamprey, which laid waste to Great Lakes fish...

Olfactory system detects pheromones that control reproduction

... with the sense of smell, plays a critical role in pheromone detection. Howard Hughes Medical Institute inves...inda B. Buck are published in the same issue. The pheromone communication system, which is found in a wide range of mammals, involves detection of chemical odor...

The brain is broadly wired for reproduction

... though certain brain areas had been implicated in pheromone signaling, specific neurons that transmit pheromone signals to GnRH neurons had not been identified." To map the neural circuits involving GnRH neurons...

Edge density key to controlling gypsy moth spread

...well as forest service data from more than 100,000 pheromone traps set along the expanding gypsy moth population front for their theoretical model. The pheromone trap data were collected from 1988 to 2004. They used a theoretical model to show how an interact...

Virus may control Australia's

...'daughterless' technology, carp-specific biocides, pheromone and sensory attractants. "It is anticipated that if these technologies are proven to be effective and safe, they will be applied on-ground in an integrated pest fish control program for the Murray-Darling Basin," Dr Crane says. Earlier outbreaks o...

Pheromone from mother's milk may rapidly promote learning in newborn mammals

...f new odors, researchers have found that a mammary pheromone secreted in mother's milk may act as a chemical bo... The findings, which deepen our understanding of pheromone function and how learning occurs in the earliest days of life, are reported in the October 10th issu...

Microfluidic chip helps solve cellular mating puzzle

... this process." Yeast cells mate by sending out pheromone designed to catch the attention of nearby cells of...t cells in response to different concentrations of pheromone in the presence or absence of Kss1. They were surprised to find that this second MAPK, thought to be...

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