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New Target to Boost Plant Resistance to Insects and Pathogens Identified
May 23, 2013 — Plants have evolved unique and sophisticated immune systems to defend themselves against insects and pathogens. Plant hormones called jasmonates play an important role in this defense, but jasmonates ... > full story -
White Tiger Mystery Solved: Coat Color Produced by Single Change in Pigment Gene
May 23, 2013 — White tigers today are only seen in zoos, but they belong in nature, say researchers reporting new evidence about what makes those tigers white. Their spectacular white coats are produced by a single ... > full story -
Bittersweet: Bait-Averse Cockroaches Shudder at Sugar
May 23, 2013 — Sugar isn't always sweet to German cockroaches. In a new study, researchers show that glucose sets off bitter receptors in roach taste buds, causing roaches to avoid foods that bring on this ... > full story -
Bacterium from Canadian High Arctic Offers Clues to Possible Life on Mars
May 23, 2013 — The recent discovery of a bacterium that is able to thrive at minus 15 degrees Celsius, the coldest temperature ever reported for bacterial growth, is exciting because it offers clues about some of ... > full story -
New Discovery in Fight Against Deadly Meningococcal Disease: Understanding the Pathway of How the Bacterium Colonizes People
May 23, 2013 — Neisseria meningitidis is an important human pathogen that can cause rapidly progressing, life threatening meningitis and meningococcal sepsis in humans, according to authors of a new study. People ... > full story -
Chemists Find New Compounds to Curb Staph Infection
May 23, 2013 — In an age when microbial pathogens are growing increasingly resistant to the conventional antibiotics used to tamp down infection, scientists have synthesized a potent new class of compounds capable ... > full story -
Biochemistry: Unspooling DNA from Nucleosomal Disks
May 23, 2013 — The tight wrapping of genomic DNA around nucleosomes in the cell nucleus makes it unavailable for gene expression. This study describes a mechanism that allows chromosomal DNA to be locally displaced ... > full story -
Boosting Body's Natural Flu Killers as Way to Offset Virus Mutation Problem
May 23, 2013 — The known difficulty in fighting influenza (flu) is the ability of the flu viruses to mutate and thus evade various medications that were previously found to be effective. Researchers at the Hebrew ... > full story -
Serengeti Road Divides Biologists: Will a Road Across the Northern Tier of Serengeti National Park Ruin It?
May 23, 2013 — Serengeti National Park in Tanzania may be the most iconic national park in the world. Here, lions, leopards, elephants, hippos and giraffes wander free. Rivers of wildebeests, zebra and Thompson's ... > full story -
What the Smallest Infectious Agents Reveal About Evolution
May 23, 2013 — Radically different viruses share genes and are likely to share ancestry, according to new research. The comprehensive phylogenomic analysis compares giant viruses that infect amoeba with tiny ... > full story
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