For the perfect eggs, roundworms use small RNAs

For the perfect eggs, roundworms use small RNAs

A C. elegans egg with CSR-1 protein inhibited. Microtubles are shown in green, chromosomes in red. Credit: UC San Diego Health All multicellular organisms that reproduce sexually rely on eggs to support early life. Researchers at University of California, San Diego School of Medicine and Ludwig Cancer Research used the tiny roundworm C. elegans as […]

Bacterial airborne signal encourages fungal growth critical in lung infections

Bacterial airborne signal encourages fungal growth critical in lung infections

Researchers in France have discovered that volatile compounds released by a bacterial pathogen stimulate the growth of a fungal pathogen found in lung infections in cystic fibrosis (CF). The findings, published this week in mBio, an online open-access journal of the American Society for Microbiology, show for the first time that one pathogen can emit […]

Researchers begin tracking crape myrtle bark scale populations

Researchers begin tracking crape myrtle bark scale populations

Erfan Vafaie, Texas A&M AgriLife Extension Service entomologist, sets traps for crape myrtle bark scale in a stand of trees along Broadway Avenue in Tyler. Credit: Adam Russell Black, sooty splotches pepper a line of 10 crape myrtle trees along Broadway Avenue in Tyler. The popular ornamental trees wear the tell-tale signs of bark scale […]

Why testing lemur color vision is harder than it looks

Why testing lemur color vision is harder than it looks

Elphaba the aye-aye takes a vision test at the Duke Lemur Center in Durham, North Carolina. She’s getting encouragement from student researcher Joe Sullivan and technician Jennifer Templeton. Photo by David Haring. Elphaba the aye-aye is not an early riser. A nocturnal primate with oversized ears, bulging eyes and long, bony fingers, she looks like […]

Brazil scientists discover three new toad species

Brazil scientists discover three new toad species

This handsome creature, photographed in Garuva, Santa Catarina state, Brazil, belongs to one of three newly discovered species of wee toads identified in mountainous regions of the so-called Atlantic tropical forest Brazilian scientists announced Wednesday the discovery of three previously unknown species of poisonous toads in the fast-shrinking Atlantic forest of southern Brazil, an area […]

New methods of enhancing efficiency of genetic engineering in mice and rats

New methods of enhancing efficiency of genetic engineering in mice and rats

Knock-in rats developed by 2H2OP A group of researchers led by Tomoji Mashimo, Associate Professor, Institute of Experimental Animal Sciences, Graduate School of Medicine, Osaka University and Kazuto Yoshitomi, Assistant Professor, Mouse Genomics Resource Laboratory, National Institute of Genetics, Research Organization of Information and Systems developed two new gene modification methods: lsODN (long single-stranded oligodeoxynucleotide) […]

Over 300 new beetle records for New Brunswick, Canada

Over 300 new beetle records for New Brunswick, Canada

The cover of the special issue of open-access journal ZooKeys, devoted to the beetle diversity and natural history in New Brunswick, Canada. Credit: ZooKeys Beetles diversity in New Brunswick, Canada, has elicited the interest of biologists for over a century and continues to do so. In 1991, 1,365 species were known from New Brunswick. That […]

Stopping malaria one mosquito at a time

Stopping malaria one mosquito at a time

«This is a significant step,» says Distinguished Professor Anthony James, holding up a vial of genetically modified mosquitoes. «This method allows us to efficiently create large populations of mosquitoes unable to transmit malaria.» Credit: Steve Zylius/UC Irvine Anthony James doesn’t dislike mosquitoes. He just doesn’t want them to transmit malaria. The University of California, Irvine […]

Microbe with stripped-down DNA may hint at secrets of life

Microbe with stripped-down DNA may hint at secrets of life

This photo provided by National Center for Imaging and Microscopy Research at the University of California at San Diego shows Electron micrographs of clusters of JCVI-Syn 3.0 cells magnified about 15,000 times. This is the world’s first minimal bacterial cell. Its synthetic genome contains only 473 genes. Surprisingly, the functions of 149 of those genes […]

Citrus scion/rootstock combinations show tolerance to huanglongbing

Citrus scion/rootstock combinations show tolerance to huanglongbing

‘Hamlin/Kinkoji’ (left) and ‘Sugar Belle/Sour Orange’ (right), two of the citrus trees in the study. ‘Sugar Belle/Sour Orange’ showed the greatest growth rates and canopy volume among the trees studied. Credit: Photo courtesy of Ed Stover. The citrus disease huanglongbing (HLB) is endemic in Florida, where it is estimated that more than 80% of citrus […]

 Page 5 of 1 375  « First  ... « 3  4  5  6  7 » ...  Last » 
  •