Your advance look at two new studies publishing online on October 15, 2020 in The American Journal of Tropical Medicine and Hygiene.
Scientists aren't sure how mosquitoes sense taste of blood, or how they know that this, of all things, is something to gorge on. Nothing else, not even sweet nectar, makes them pump as ferociously as when they're draining our veins. New research identifies a unique group of neurons that don't care about simple tastes like sweet or salty. Rather, they activate only when sugar, salt, and other components of blood are all present at once.
Some people carry a mutation in a particular gene that makes the smell of fish less intense, reports a paper publishing October 8 in the journal Current Biology. The study, which is the largest genome-wide association study (GWAS) of olfactory genes in humans involving a sniff test and looked at over 9,000 people from Iceland, also shows that people vary in their ability to discern the smell of licorice and cinnamon.
A recent publication in the Journal of Neuroscience by a group of researchers at the University of Kentucky looks at Encoding the Odor of Cigarette Smoke. Tim McClintock, a physiology professor at UK, says their work lays a foundation for two things.
Women who have suffered unexplained repeated pregnancy loss (uRPL) have altered perceptions and brain responses to male body odours, in comparison to those with no history of uRPL, suggests a new study published today in eLife.
Understanding the connection could lead to a new search for the causes of unexplained spontaneous miscarriage
Based on highly sensitive recordings of neuron activity in the noses of mice, researchers from Kyushu University have found that olfactory sensory neurons can exhibit suppression or enhancement of response when odors are mixed, overturning a long-standing view that the response is a simple sum with more complex processing only happening at later stages.
If you want a dog to hunt something down, it helps to let them sniff an item to pick up the scent. Now, researchers reporting in Current Biology on September 17 have found that scent training honeybees might work in a similar way--and that this approach could make bees more efficient in pollinating crops. The findings show that honeybees given food scented with sunflower odors led to a significant increase in sunflower crop production.
Researchers showed that isothiocyanates produced by cruciferous plants to fend off pests serve as oviposition cues. The scientists identified two olfactory receptors whose sole function is to detect these defense substances and to guide female moths to the ideal sites to lay their eggs. They uncovered the molecular mechanism that explains why some insects that specialize in feeding on certain host plants are attracted by substances that are supposed to keep pests away.
Dogs aren't known for being picky about their food, eating the same kibble day after day with relish. However, owners of pampered pooches want their pets to have the best possible culinary experience, especially for those rare finicky canines. Now, researchers reporting results from a pilot study in ACS' Journal of Agricultural and Food Chemistry have identified key aroma compounds in dog food that seem to be the most appealing to canines.