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Tag: "metamorphosis" at biology news

Hormones and growth: The control of body size and developmental growth rate in fruit flies

...the gland, they were able to control the timing of metamorphosis and the body size of adult flies. They showed that...es' overall body size, prompting the initiation of metamorphosis before the flies surpassed the minimal viable weight necessary to survive pupation. On the basis of ...

Scientists find a maturity gene in fly

...R4 gene is disabled, fruit flies prematurely begin metamorphosis ?maturation from an immature larva to a sexually a... The process is relevant to people because insect metamorphosis is analogous to the transformation of a human "from a juvenile, non-reproductive stage to a mature, ...

MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools

...R4 gene is disabled, fruit flies prematurely begin metamorphosis ?maturation from an immature larva to a sexually a... The process is relevant to people because insect metamorphosis is analogous to the transformation of a human "from a juvenile, non-reproductive stage to a mature, ...

Elusive salamanders have role in developing new sampling models

...lopment lasts through May. The larvae then undergo metamorphosis and leave the ponds as terrestrial juveniles. Juvenile and adult salamanders may move 400 or more yards from ponds and burrow in old crayfish holes and other crevices in soggy pine flatwoods. This research is important to the military because better...

Researchers find gland that tells fruit flies when to stop growing

...als when it has reached a critical weight to begin metamorphosis into an adult. The team, led by postdoctoral rese...he gland by increasing insulin signaling triggered metamorphosis at smaller sizes than usual. Suppressing the gland's growth by decreasing insulin signaling allowed ...

Gene needed for butterfly transformation also key for insects like grasshoppers

...shoppers. Biologists know the broad gene regulates metamorphosis in flies and moths and is found only at the transi...n their larval and pupal stages. To understand how metamorphosis evolved in insects, the UW researchers examined how the broad gene functions in direct-developing in...

Butterflies lose body fat during metamorphosis

...ed that considerable energy would be necessary for metamorphosis to occur. It appears as though the larva is sleeping, and one might think that very little energy would be required in hibernation, but the reverse must be true since a great deal of metabolic activity is occurring in the butterfly chrysalis." Beca...

Habitat microstructure drives salamander metamorphosis

... if these spaces are filled in by small particles, metamorphosis is the only way they can survive when surface streams dry-up. ...

Giant deep-sea tubeworm's meal ticket comes in as a skin infection

...nd by remaining in the stomachcaused it to undergo metamorphosis into thetrophosome. But those conclusions were based on a verysmall set of observations, due to the extremedifficulty of obtaining the tubeworm's larvaland juvenile stages. The only way to collectthese delicate organisms is directly from theocean fl...

Leptin found to control appetite and limb development in frogs

...has studied the ability of frogs to speed up their metamorphosis in response to a drying pond, thinks that the tadp...ting tissue growth and development." The timing of metamorphosis in frogs is central to their survival, Denver said. If tadpoles metamorphose too soon they are at a ...

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