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Tag: "jellyfish" at biology news

Revolutionary nanotechnology illuminates brain cells at work

...differently colored tags made from variants of the jellyfish Green Fluorescent Protein (GFP). The colored tags are placed at each end of the molecule making a "biosensor." When the substance of interest binds to the sensor, the sensor backbone becomes reoriented, and the reorientation can be detected. Since li...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...cimens and images include suspected new species of jellyfish and benthic bristle worms, and the first squid and octopus ever found in the area. Scientists were also intrigued to discover among other things two species of sand flea-like crustaceans (amphipods) which, though familiar, had never before been foun...

Fluorescing lab worms signal longer life spans

...t day of adult life," Johnson said. Obtained from jellyfish and widely used in genetic experiments, the green fluorescent protein was attached to a heat-shock protein in the worms called HSP-16. "HSP-16 alone is probably not responsible for observed differences in survival, but instead is likely reflective of...

Ships bring alien jellyfish invaders to our shores

...are being threatened by exotic species of the moon jellyfish being dispersed by international shipping, accordi... of California, Davis, have revealed that the moon jellyfish could not have migrated naturally, according to a report in today's Proceedings of the National Acad...

Tiny polyps gorge themselves to survive coral bleaching

...for mutual benefit. The coral polyp, a relative of jellyfish and anemones, provides a safe home within its cells for the algae while the algae convert sunlight into energy for the polyp. Grottoli said that when the temperature of the waters around a reef exceeds that upper limit and stays there for more than...

Sea coral's trick helps scientists tag proteins

...ent protein (GFP) from a species of bioluminescent jellyfish in 1992, and Martin Chalfie, who first used GFP for labeling in 1994, said Marc Zimmer, a computational chemist at Connecticut College and author of Glowing Genes: A Revolution in Biotechnology (2005). Since then, HHMI investigator Roger Tsien has de...

Scientist warns of threat to last stronghold of endangered turtle

... Europe and even the Indian Ocean to feed on their jellyfish prey. Once we have detailed information our tracking work will feed directly into strategies for marine protected areas in Gabon and farther afield and more sustainable fisheries. We are just beginning to understand the importance of the leatherba...

Jellyfish dominate fish in over-harvested Namibian waters

... the coast of Namibia, researchers have found that jellyfish have actually overtaken fish in terms of the bioma...rnal Current Biology. An increasing abundance of jellyfish off Namibia had been noted for some time, but an analysis of this trend's effect on the ecosystem ha...

Nanosecond-scale release of stinging jellyfish nematocysts

... characterized the explosive discharge of stinging jellyfish nematocytes and show that this event represents on...iology. Nematocysts (also known as cnidocysts) of jellyfish and other cnidarians are giant exocytotic organelles of the stinging cells used for prey capture and...

UWM brain research supports drug development from jellyfish protein

... has found that a compound from a protein found in jellyfish is neuro-protective and may be effective in treati...he amount of calcium "allowed in." Aequorin, the jellyfish protein, appears to be a viable substitute. Moyer, like Underwood, is interested in the "calcium ...

Squid-inspired design could mean better handling of underwater vehicles

...ed by the sleek and efficient propulsion of squid, jellyfish and other cephalopods, a University of Colorado at... vortex rings, much like those formed by squid and jellyfish to move themselves underwater. Vortex rings are formed when a burst of fluid shoots out of an openi...

Lighting up life: Cold Spring Harbor Protocols presents tips for creating glowing plants

...ade ago, biologists isolated a unique protein from jellyfish that could be inserted into other organisms—from E. coli to pigs—and cause them to radiate a brilliant green color. This green fluorescent protein (GFP) has allowed biologists to make many new discoveries regarding how living cells function. But on...

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