Navigation Links
Scent in Biological News

Stop and smell the flowers -- the scent really can soothe stress

Feeling stressed? Then try savoring the scent of lemon, mango, lavender, or other fragrant plants. Scientists in Japan are reporting the first scientific evidence that inhaling certain fragrances alter gene activity and blood chemistry in ways that can reduce stress levels. Their study appears in ...

Emotion and scent create lasting memories -- even in a sleeping brain

DURHAM, NC -- When French memoirist Marcel Proust dipped a pastry into his tea, the distinctive scent it produced suddenly opened the flood gates of his memory. In a series of experiments with sleeping mice, researchers at the Duke University Medical Center have shown that the part of the bra...

Scent on demand: Hebrew University scientists enhance the scent of flowers

A team of scientists at the Hebrew University of Jerusalem has found a way to genetically enhance the scent of flowers and implant a scent in those that don't have one. Smell plays an important role in our lives: It influences the way in which we choose fruit and vegetables, perfume, and even a...

No more big stink: scent lures mosquitoes, but humans can't smell it

DAVIS--Mosquito traps that reek like latrines may be no more. A University of California, Davis research team led by chemical ecologist Walter Leal has discovered a low-cost, easy-to-prepare attractant that lures blood-fed mosquitoes without making humans hold their noses. The synthetic mix...

Primate's scent speaks volumes about who he is

DURHAM, N.C. -- Perhaps judging a man by his cologne isn't as superficial as it seems. Duke University researchers, using sophisticated machinery to analyze hundreds of chemical components in a ringtailed lemur's distinctive scent, have found that individual males are not only advertising the...

Squirrels use snake scent

California ground squirrels and rock squirrels chew up rattlesnake skin and smear it on their fur to mask their scent from predators, according to a new study by researchers at UC Davis. Barbara Clucas, a graduate student in animal behavior at UC Davis, observed ground squirrels (Spermophilus ...

Even when faint, ovary scent draws sperm cells

In this week's Analytical Chemistry, scientists at Indiana University Bloomington report biochemical machinery that allows mouse sperm cells to follow the weakest of scents. Even when ovary extracts were diluted 100,000 times, some sperm cells still found their mark. A video demonstrating sperm ...

Animal and plant communication at the ESA Annual Meeting

...n some way that the ants found acceptable. Since ants use pheromones to communicate with one another, she also wondered if the bugs were mimicking the scent of the ants. When she and her colleagues immobilized the bugs, the ants still did not attack them. But when the researchers washed the bugs in a chem...

Neuroscientists discover long-term potentiation in the olfactory bulb

...ions of Strowbridge and Gao's work is that the brain may learn about different smells by having higher brain areas first make a prediction about which scent it might be, and then test that prediction against the actual sensory data coming into the brain. "Our work suggests that there is much more talki...

Male flower parts responsible for potent grapevine perfume: UBC research

... University of British Columbia scientists have traced the fragrant scent of grapevine flowers to pollen grains stored in the anthers, contrary to common perception that petals alone produce perfume. While studying grapes...

Male flower parts responsible for potent grapevine perfume: UBC research

... University of British Columbia scientists have traced the fragrant scent of grapevine flowers to pollen grains stored in the anthers, contrary to common perception that petals alone produce perfume. While studying grapes...

Female mammals follow their noses to the right mates

...has shown that female mammals commonly investigate scent marks left by males. Females also show a preference to mate with males who scent mark more frequently. Just what can a female l...cent studies have shown that mammalian females use scent to pick out genetically dissimilar males. Parents ...

Neural mapping paints a haphazard picture of odor receptors

...bors. Inexplicably, this seemingly random arrangement is faithfully preserved across individuals and even species, with cells that process the same scent located in precisely the same location on the olfactory bulb, the brain's first processing station for odors. The crazy-quilt map of odor-processin...

Rice University psychologist finds women's brains recognize, encode smell of male sexual sweat

...the experiment indicated the brain recognizes chemosensory communication, including human sexual sweat. Scientists have long known that animals use scent to communicate. Chen's study represents an effort to expand knowledge of how humans' sense of smell complement their more powerful senses of sight a...

Bumblebees learn the sweet smell of foraging success

... Bumblebees use flower scent to guide their nest-mates to good food sources, ac... time. They exposed bumblebee colonies to an anise scent mixed with recruitment pheromone and monitored the...ntered the nest as either scented nectar or simply scent in the air. Dr Raine explains: "Successful bee...

Evolved Machines Selected as a Prime Contractor for DARPA Program to Engineer an Artificial Olfaction System

...orants under the challenge of real-world conditions. The DARPA program, which is titled "RealNose," emphasizes not only the high sensitivity of canine scent detection but also is the first program to tackle the separation of multiple odorants in the presence of unknown backgrounds that characterize the det...

Moths with a nose for learning

...nd its proboscis in anticipation of a dollop of sucrose after being given a scent cue. The researchers attached electrodes to the insects mushroom bodies, a ...o learning and memory, in order to observe the mental representation of the scent through spikes in activity across groups of neurons called Kenyon cells. By...

Biochemists manipulate fruit flavor enzymes

...idopsis thaliana, by genetic means. The enzymesallene oxide synthase (AOS) and hydroperoxide lyase (HPL)produce jasmonate (responsible for the unique scent of jasmine flowers) and green leaf volatiles (GLV) respectively. GLVs confer characteristic aromas to fruits and vegetables. Green leaf volatiles ...

Toxic chemicals found in common scented laundry products, air fresheners

...sted on the product labels. "I first got interested in this topic because people were telling me that the air fresheners in public restrooms and the scent from laundry products vented outdoors were making them sick," said Anne Steinemann, a UW professor of civil and environmental engineering and of publi...

American Chemical Society's Weekly PressPac -- July 16, 2008

... ARTICLE #2 FOR IMMEDIATE RELEASE New findings on Mother Earth's earthy scent Journal of the American Chemical Society That evocative "earthy" scent of the soil returning to life in spring and nasty earthy tastes and odors ...

Pregnant mice block out unwelcome admirers to protect their pups

...mouse to the smell of an alien male's urine prevents the implantation of her embryos into the uterus and brings her back into the ovulatory cycle. The scent affects pregnancy by inhibiting the release of the pregnancy hormone prolactin. This phenomenon is often called the Bruce effect and creates a mating ...

American Chemical Society's Weekly PressPac -- June 25, 2008

...lly-friendly plastic that is compatible with fabrics, as a solution. They used the material to prepare microcapsules containing limonene, the familiar scent abundant in lemons and widely-used in perfumes, and applied the capsules onto wool and polyester samples. In laboratory tests, the microcapsules showe...

Can feces save the species?

... Its a tough job, but somebody, or at least some dogs, have to do it. In the Cerrado region of Brazil, four dogs trained to detect animal feces by scent are helping researchers monitor rare and threatened wildlife such as jaguar, tapir, giant anteater and maned wolf in and around Emas National Park, a ...

Flowers' fragrance diminished by air pollution, University of Virginia study indicates

...iting the ability of pollinating insects to follow scent trails to their source, a new University of Virgin...ne in the journal Atmospheric Environment. "The scent molecules produced by flowers in a less polluted e...ow the scents of flowers travel with the wind. The scent molecules produced by flowers are very volatile an...

Wandering albatrosses follow their nose

...y on their sense of smell. The birds can pick up a scent from several miles away, U.S. and French researche...oss the wind, which allows them to cross plumes of scent drifting downwind and is also the best strategy fo...way -- well over the visual horizon. Hunting by scent allows the albatross to cover a strip of ocean sev...

Breath of the ocean links fish feeding, reefs, climate

...se, and the researchers noted that these fish were mostly arriving from down-current as if they were following a plume of scent. The fish are using scent to "listen" to the interaction between plant plankton and their predators, DeBose said. "They're not smelling food, but other cues that might lead ...

Dung happens and helps scientists

...is dried and stored wrapped in tissue inside sturdy, archival cardboard boxes. Mead opens a box of chunky 14,000-year-old mammoth dung and a slight scent of musty grass escapes. He points to the chomped blades of grass fossilized into the brown dried dung and surmises that the mammoth ate about 600 poun...

Slow-motion video study shows shrews are highly sophisticated predators

... by blowing air bubbles out of their nose and then re-inhaling them. Catania had discovered the third of these methods the shrews ability to follow scent trails underwater by exhaling air bubbles and then re-inhaling them in a 2006 study published in the journal Nature. This ability allows diving wate...

Neuronal circuits able to rewire on the fly to sharpen senses

...floral. As you continue to smell the odor, you begin to recognize that the scent is indeed flowers and even more specifically is the scent of roses, Urban said. By understanding how the brain does this, we can then...

Worms take the sniff test to reveal sex differences in brain

...her of the two sexes in these worms opted for the scent of fresh vegetables. But when researchers tricked ...pcorn smell of diacetyl, while males preferred the scent of pyrazine, which resembles the smell of fresh ve...hey began behaving like males, crawling toward the scent of pyrazine. With a single genetic modification, t...

Three-way mating game of North American lizard found in distant European relative

... dynamic may just be harder for biologists to find in animals that don't broadcast their affiliation with bright colors. Mammals, for example, may use scent as their signal. "I like to think of it this way," Sinervo said. "If we were Labrador retrievers, maybe we could smell the rock-paper-scissors gam...

Good earth: Brown chemists show origin of soil-scented geosmin

...wn team shows that the protein that makes geosmin source of the good earth scent has two similar but distinct halves, each playing a critical role in makin...mical compound. In water, blue-green algae make it. Along with the pleasant scent of warm, moist soil, geosmin is also responsible for the muddy off taste in...

Gene determines whether male body odor smells pleasant

...at of stale urine or strong sweat, others find the scent sweet and pleasant. Still others cannot smell it a...mation, and the ability to perceive androstenone's scent may have far-reaching behavioral implications for ...a large part of why people perceive androstenone's scent so differently. With their Duke collaborators,...

New research shows sharks use their noses and bodies to locate smells

...y graduated Boston University Marine Program (BUMP) Masters student and study co-author, created two parallel, turbulent odor plumes – one using squid scent and the other a plain seawater control. Minimally turbulent ‘oozing’ sources of squid odor and seawater control were physically separated from sources...

Why do oysters choose to live where they could be eaten?

...s. Using a series of laboratory experiments and field surveys, Tamburri has demonstrated that oyster larvae are attracted from a distance by the scent of adults from the same species. Yet, death for a larvae captured by a feeding adult is nearly certain at greater than 90 percent. A series of ex...

Detecting poisons in nectar is an odour-ous task for honeybees

...y for Experimental Biology’s Annual Meeting in Glasgow. Honeybees are very clever and can learn to associate almost any colour, shape, texture or scent with food. The newly-sequenced honeybee genome has revealed that honeybees do not have as many genes for taste receptors as other animals of a similar...

Cloning the smell of the seaside

...his 'Gaia hypothesis'. DMS is also a remarkably effective food marker for ocean-going birds such as shearwaters and petrels. It acts as a homing scent ?like Brussels sprouts at the Christmas dinner table! - and the birds sniff out their plankton food in the lonely oceans at astonishingly low concentr...

Scientists to track impact of Asian dust and pollution on clouds, weather, climate change

...e perception of smell is quite complex," Ehlers said. "The brain can decode thousands of smells that enter the nose, discriminating even the slightest scent and often conjuring up vivid memories. So we wanted to know how the brain decodes the presence of these chemicals in the air and turn them into a perc...

Common algae helps illustrate mammalian brain electrical circuitry

...e perception of smell is quite complex," Ehlers said. "The brain can decode thousands of smells that enter the nose, discriminating even the slightest scent and often conjuring up vivid memories. So we wanted to know how the brain decodes the presence of these chemicals in the air and turn them into a perc...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...ects by sniffing alone, Catania created underwater scent trails leading to food and recorded how well the m...ar, he put a grid-work between the animals and the scent trails. The openings in the grid were too small fo...rials demonstrated that the moles could follow the scent trail by sniffing alone (without the tactile star)...
Other Tags
(Date:12/17/2014)... DUBLIN , Dec. 16, 2014 Research ... announced the addition of the "Global Chemical ... http://photos.prnewswire.com/prnh/20130307/600769 ... is the increasing demand for medical sensors in ... patient data for quick and correct diagnosis during ...
(Date:12/11/2014)... 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced the addition of ... 2015-2019"  report to their offering. ... advances in technology. With continuous advances in technology, ... the latest standard that meets the needs and ...
(Date:12/11/2014)... 10, 2014  Data Sciences International (DSI), the ... a new series of digital telemetry implants to ... M series, part of the PhysioTel™ Digital platform, ... possible physiologic data when incorporating functional endpoints into ... to toxicology studies has evolved from short ECG ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2New telemetry implants expected to change how large animal toxicology studies are conducted 2
(Date:12/20/2014)... NY (PRWEB) December 20, 2014 The aftermath ... caused quite a stir, not only in Hollywood, but worldwide. ... December 18th , the ripples of that attack are starting ... very jobs at risk. But they are not the ... exposed could be in for some embarrassing times ahead, agents ...
(Date:12/20/2014)... 20, 2014 Parker & Sons, Inc. ... years of experience in contractor services announces reaching a ... for the homeowners of Arizona. Parker and Sons is ... contractor technicians that make customer service the number one ... Arizona and started with one service vehicle and has ...
(Date:12/19/2014)... 19, 2014 Sub Zero Ice Cream is ... blood drive Sunday the 28th from 2pm-6pm at the Expo ... Road in Sarasota, FL. , Inquiries regarding time slots and ... participating in the donating process, Sub Zero Ice Cream & ... custom ice cream. , About Sub Zero Ice Cream & ...
(Date:12/19/2014)... Canadian, OK (PRWEB) December 19, 2014 ... is home to Lake Eufaula, the state’s largest lake ... lovely lakeside town is home to a little more ... at 1:00 P.M. on Saturday, the 6th of December. ... made its way through downtown Eufaula on Main Street. ...
(Date:12/19/2014)... FRIDAY, Dec. 19, 2014 (HealthDay News) -- New research warns parents ... young lives at risk. Nearly half of teen drivers killed ... that were at least 11 years old and often lacked important ... Eighty-two percent of teen drivers killed in crashes were in ... six to 10 years old, 31 percent were in cars 11 ...
Breaking Medicine News(10 mins):Health News:Sony Pictures Hack Perfect Example of the Reach a Single Cyber Attack Can Have 2Health News:Sony Pictures Hack Perfect Example of the Reach a Single Cyber Attack Can Have 3Health News:Sony Pictures Hack Perfect Example of the Reach a Single Cyber Attack Can Have 4Health News:Sony Pictures Hack Perfect Example of the Reach a Single Cyber Attack Can Have 5Health News:Parker & Sons Announces Reaching A Milestone By Providing 40 Years Of Dedicated Contractor Services For Homeowners Of Arizona 2Health News:Parker & Sons Announces Reaching A Milestone By Providing 40 Years Of Dedicated Contractor Services For Homeowners Of Arizona 3Health News:Shark Tank’s Sub Zero Ice Cream Sponsors Blood Drive 2Health News:Narconon Arrowhead Debuts Float at Checotah and Eufaula Christmas Parades 2Health News:Narconon Arrowhead Debuts Float at Checotah and Eufaula Christmas Parades 3Health News:Older Cars a Bad Choice for Younger Drivers 2
Other Contents