Sentences with word «sexta»

Manduca sexta moths dine solely on nectar, but the sugary liquid does more than fuel their bodies.

The scientists therefore examined whether lyciumoside IV or its detoxified product protect Manduca sexta caterpillars against their natural enemies.

«Scientists identify specialized brain areas for feeding and egg - laying in hawkmoths: Activity in specific areas in the olfactory center of female Manduca sexta correlates directly with different behaviors.»

M. sexta occurs naturally in North, Central and South America and is a known pest to gardeners: It eats the leaves of tomato plants and also can be found on pepper, eggplant and potato plants.

Using molecular biology techniques the scientists identified the Manduca sexta genes which were active on the proboscis of the moth.

Darwin's observations inspired Markus Knaden, who heads the studies with Manduca sexta hawk moths in the Department of Evolutionary Neuroethology, and his colleagues.

«Scent guides hawk moths to the best - fitting flowers: Researchers show that Manduca sexta recognizes scent of flowers matching its proboscis, thereby optimizes energy gain.»

It was thought that the sugar molecules were removed from lyciumoside IV in the Manduca sexta midgut and the released toxin caused these deleterious effects.

Now, the scientists want to find out whether there are natural Manduca sexta variants or related Manduca species that have already evolved a mechanism to co-opt lyciumoside IV and simultaneously avoid mortality and impairments.

However, as the researchers showed, Manduca sexta larvae prefer to detoxify this plant defensive compound rather than sequestering it.

A choice assay revealed that the Manduca sexta proboscis stayed much longer in the part of the y - maze tube where benzyl acetone, a typical floral scent compound, was present.

Analysis of chitin - binding proteins from Manduca sexta provides new insights into evolution of peritrophin A-type chitin - binding domains in insects

Segunda generación después de su regreso y sexta en total, el camaro.

Nos estados unidos o novo chevrolet camaro, em sua sexta geração.

biólogo advierte de las primeras etapas de la sexta extinción masiva de la Tierra July 24, 2014 Stanford Biology Professor Rodolfo Dirzo and his colleagues warn that this «defaunation» could have harmful downstream effects on human health.

Molting failure was caused by lyciumoside IV ingestion in glycosidase - silenced Manduca sexta caterpillars (b, c, d) in comparison to the control (a).

February 27, 2018 Scientists identify specialized brain areas for feeding and egg - laying in hawkmoths - Activity in specific areas in the olfactory center of female Manduca sexta correlates directly with different behaviors

Crops and weeds from this plant family, which includes tobacco, produce chemicals such as nicotine that deter feeding by most insects, but not M. sexta, which makes its physiology especially interesting to scientists.

The researchers showed that floral scent is crucial for successful pollination: Manduca sexta hawk moths, the most important pollinators of the wild tobacco species Nicotiana attenuata, use their proboscis to smell the floral volatiles when they visit flowers.

A Manduca sexta moth visits the flowers of Nicotiana attenuata, a wild tobacco species.

The scientists analyzed the responses of the olfactory center of the moths to 80 different plant odors that are important for Manduca sexta in the moths» natural environment.

In a new study published today in Cell Reports, researchers placed female hawkmoths (Manduca sexta) in a wind tunnel containing two pieces of filter paper — one covered in a test odor, and one with no odor.

The vision of the hawkmoth Manduca sexta — an agile insect flyer that feeds on nectar — is finely tuned to the swaying of flowers in the breeze, a new study shows.

The scientists used 80 environmental odors that are ecologically relevant for Manduca sexta and showed where these odors are processed in the moths» brains.

Nocturnal moths, such as the tobacco hawkmoth Manduca sexta, rely on their extremely sensitive sense of smell in order to locate their food sources: flowers that contain nectar.

The offspring of Manduca sexta, however, survive on only a few host plant species, such as tobacco.

The search for food is linked to other areas in the olfactory center of female tobacco hawkmoths (Manduca sexta) than the search for plants to best lay eggs, researchers from the Max Planck Institute for Chemical Ecology in Jena, Germany, found.

In their natural habitat, Manduca sexta, a moth species found throughout North and South America, feeds on a variety of nectar - producing flowers.

The researchers have published their work in a paper titled «Multifaceted biological insights from a draft genome sequence of the tobacco hornworm moth, Manduca sexta» in the journal Insect Biochemistry and Molecular Biology.

The tobacco hornworm, or Manduca sexta, develops into the Carolina sphinx moth.

«The completion of this project marks a major milestone in the study of insect biochemistry and molecular biology, as Manduca sexta is an important model insect: one that has been studied for its physiology and biochemistry for many decades,» said Blissard.

Offering hawk moths (Manduca sexta) a range of 3 - D printed flowers with different curvatures shows that a moderately curved trumpet shape lets moths sip most efficiently, Foen Peng reported June 24 at the Evolution 2017 meeting.

When scrutinizing electron microscopic images of the tip of the proboscis, the researchers discovered a sensillum, a sensory hair previously unknown in Manduca sexta.

Conducting semi-natural tent experiments with plants of the wild tobacco species Nicotiana attenuata, Danny Kessler and Felipe Yon along with their colleagues from the Department of Molecular Ecology were surprised when they observed that non-scenting flowers were visited by tobacco hawk moths (Manduca sexta) as often as were scenting flowers.

A pollinating moth Manduca sexta, this one with a wing span of about 4 inches, feeds from a Sacred Dutura, or Datura wrightii, flower.

With wing spans of 4 inches, adult Manduca sexta moths can travel up to 80 miles in an evening looking for food and mates.

But the plump, striped tobacco hornworm caterpillar (Manduca sexta) can repurpose the poison to generate «toxic halitosis,» Baldwin says.

Researchers measured tracheal tube sizes in tobacco hornworm caterpillars (Manduca sexta) throughout their development and found that, while the rest of the organisms» bodies grow between molts, the tubes do not.

A hawk moth (Manduca sexta) uses its eight - centimeter - long proboscis to drink nectar from a flower of Nicotiana alata, a species of wild tobacco also called jasmine or winged tobacco.

They were able to show that Manduca sexta moths acquired the highest energy gain when they visited flowers that matched the length of their proboscis.

«Reducing the sweetness to survive: Manduca sexta caterpillars» developed a surprising detoxification mechanism against their host plant's sweet toxin.»

Scientists at the Max Planck Institute for Chemical Ecology in Jena, Germany, now found the opposite mechanism: a defensive compound of the wild tobacco species Nicotiana attenuata which is toxic with sugar molecules bound to it and a glycosidase in the gut of the tobacco hornworm Manduca sexta which removes one sugar from this toxin to convert it to a non-toxic form.

They were especially interested in a compound named lyciumoside IV which contains three sugar molecules and is toxic to larvae of the tobacco hornworm Manduca sexta.

Hypoxia - induced compression in the tracheal system of the tobacco hornworm caterpillar, Manduca sexta

He hatched 72 tobacco hornworms (Manduca sexta), a common North American moth, and dosed the caterpillars with varying levels of antibiotics intended to wipe out any microbes the insects contained.

There are some fun surprises among the plants that remain, including this tobacco hornworm (Manduca sexta) above that was chewing on our tomatoes.

Structural features, evolutionary relationships, and transcriptional regulation of C - type lectin - domain proteins in Manduca sexta