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Tag: "released" at biology news

CU, USDA team to curb two invasive, poisonous vines

...ed soil, or possibly because of chemicals directly released by the swallow-worts, other plant species have a hard time establishing themselves wherever swallow-worts grow, DiTommaso said. The pink-flowered pale swallow-wort grows rapidly in both forest understories and in open fields of undisturbed soil thro...

Researchers release new variety of asparagus

UC Riverside researchers have released a new variety of asparagus that offers a higher yi... superior hybrid marks the third time that UCR has released a new variety of the vegetable, the most recent being 1982. "Particularly now, the asparagus indus...

Study suggests that publicly available genome data may contain small but significant errors

...d that of the map derived from the public sequence released in 2002. S. pombe's genome is only about 14 million bases long (almost a thousandth of the human genome), and is widely considered to be a gold-standard in whole-genome assembly. The authors show that with appropriate experimental conditions, array ...

'Nano-keys' bind cell receptors and trigger allergic reactions

...cells secrete chemicals and histamines (substances released in allergic reactions that cause runny nose, watery eyes and other characteristic allergy symptoms) and they are the gatekeepers for the allergic immune response. This system can be manipulated experimentally. Specifically, Baird works with immunogl...

Protein translation in sperm

...erm prior to fertilization. Their paper has been released online ahead of print at www.genesdev.org. After ejaculation, sperm reside in the female reproductive tract for several hours. During this time, a number of biochemical changes take place within sperm, collectively known as "capacitation," that rend...

New possibilities to fight pests with biological means

...forming the sesquiterpene scent compounds that are released by the plant and attract wasps toward the damaged ...the exact bouquet of nine scent compounds that was released by the damaged corn plant. To demonstrate that TPS10 is indeed the important gene, the scientists in...

HortResearch science reveals the natural potential of apples

...and listed New Zealand biotech company Genesis Ltd released 100,000 apple ESTs. Identified by HortResearch scientists over a 6 year period, the apple ESTs hold the secrets to discovering how gene function controls all aspects of fruit development, including taste, colour, vitamin content and even how fruit f...

Rhinos clinging to survival in the heart of Borneo, despite poaching

World Wildlife Fund today released the results of a field survey from the island of B...hreat to this species, the survey results were not released until strong protection measures could be put in place in the areas where the rhinos are found. Thos...

Chemical guidance of T cells leads to immunologic memory and long-term immunity

...thought, but instead is guided by chemical signals released from other cells. Scientists have long recognized the importance of understanding how CD8+ T cells move through the lymph nodes and become activated. Once active, CD8+ T cells roam throughout the body destroying cells infected with bacteria or virus...

Carbon cycle was already disrupted millions of years ago

...of 12C in the form of CO2 or methane were suddenly released into the atmosphere. This could have been the result of methane being released from gas hydrates which were buried in the ocean floor. It is not clear which mechanism was responsi...

Scientists develop a way to make the deadliest toxin known even more toxic

... energy needed for the activation. The study was released in an advanced online version by the Journal of the American Chemical Society. Kim Janda, currently the Ely R. Callaway Jr. professor of chemistry, director of the Worm Institute for Research and Medicine (WIRM), and head of the laboratory that con...

Polymer aids in blood clotting, pointing way to new treatment

...ther aspects. When we found that polyphosphate was released from platelets upon stimulation, I immediately thought about a potential role in coagulation." In collaboration with Morrissey, an expert on blood clotting, Docampo and a team of U. of I. graduate and postdoctoral students tested the effect of addin...

Bioactive cement scaffold may improve bone grafts

...ids, creating a scaffold that is filled by the now released bone cells. The cement, a calcium phosphate material, is strengthened by adding chitosan, a biopolymer extracted from crustacean shells. The implant is further reinforced to about the same strength as spongy natural bone by covering it with several ...

High-resolution light microscope reveals the fundamental mechanisms of nerve communication

... signals to pass between cells. Their contents are released at the synapse when the vesicle membranes fuse wit...s in an 'economical' fashion: the vesicle proteins released onto the membrane ofthe nerve cell can be collectively reabsorbed to form another vesicle. Neural v...

Novel method reveals how menthol discovery could point towards new or improved pain therapies

...can either activate or block them." The study was released in an advanced online version by the journal Nature Neuroscience. It will be published in the journal's April edition (Vol. 9, No. 4). Utilizing a novel mutagenesis and high-throughput screening approach, the study assayed 14,000 TRPM8 mutants to f...

U-M researchers take new approach to defeating Gram-negative bugs

...its defenses. That article appears in the recently released inaugural issue of the American Chemical Society's journal ACS Chemical Biology. Some of the better-known Gram negatives are salmonella, gonorrhea, cholera and meningicoccal meningitis, along with the bacteria that caused the black plague. Woodard ...

Novel virus entry mechanism could lead to new drugs against poxviruses

... a cell membrane which allows the virus core to be released into the cell. In contrast, the extracellular form of Vaccinia virus has two lipid membranes, meaning a single fusion event will not release a naked virus core into the cell. The researchers found that interactions between polyanionic or negatively...

Mayo Clinic researchers challenge sepsis theory

...in response to drugs -- is that this receptor gets released from its constraint. That's the first step that actually initiates sepsis." Research is underway to discover new therapies that could prevent, blunt or reverse the release of the constrained receptor. ...

Mice with glowing hearts shed light on how hearts develop

...ases dramatically with each muscle contraction, is released in heart cells. Co-author Junichi Nakai of the RIKEN Brain Science Institute in Wako-shi, Japan, developed the fluorescent molecule by modifying a green fluorescent protein (derived from bioluminescent jellyfish) and making it glow brightly enough to...

Genetically engineered mosquitoes show resistance to dengue fever virus

...sed that no genetically altered mosquitoes will be released at any time during these studies. ...

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