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Top 7 in cell biology

By | September 21, 2010

1. Parasite's unusual metabolism __Plasmodium falciparum__ may have evolved a unique, non-cyclic version of the textbook energy-producing process in cells known as the Krebs cycle -- presumably as an adaptation to living inside human blood cells -- a finding that could lead to new Malaria drug targets. K.L. Olszewski et al., linkurl:Nature,;,f1000m,isrctn 2010 Aug 2 466:774-8. linkurl:Eval by;


mRNA affects protein fate

By | September 17, 2010

The genetic code of proteins may dictate much more than their amino acid sequences, a new linkurl:paper;;329/5998/1534?maxtoshow=&hits=10&RESULTFORMAT=&fulltext=Differential+arginylation+of+actin+isoforms+is+regulated+by+coding+sequence-dependent+degradation&searchid=1&FIRSTINDEX=0&resourcetype=HWCIT from __Science__ suggests -- it may hold their ultimate fate. β-actin Image:Wikimedia commonslinkurl:Anna Kashina;


Biotech's new invaluable tool

By | September 16, 2010

In just two decades, the protein equivalent of an intron has carved out a significant niche in biotechnology -- and captured the interest of evolutionary biologists, who suspect these potentially ancient elements could provide clues to early enzymes. Image: Wikimedia commonsWith the ability to splice themselves out of proteins and paste the two loose ends of the protein back together, inteins are proving to be an invaluable tool in biotechnology. Just 20 years since their discovery, inteins are

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Sweet science

By | September 16, 2010

Ever had the urge to take a nice crunchy bite of Drosophila or lick icing off a brain? You will after a visit to linkurl:Not So Humble Pie,; a blog run by scientist-turned-baker, Ms. Humble. A blogger who refers to herself as "a typical nerdy biological anthropologist turned stay at home mom," Ms. Humble -- who chooses to remain anonymous -- began the blog in October 2009. Since then, the popular blog has regularly featured science-themed baked goods, from zebr


New energy source for microbes

By | September 15, 2010

Microorganisms living in deep sea hydrothermal vents can grow off of energy derived from one of the simplest forms of anaerobic respiration ever described, according to a study published this week in Nature. A deep-sea vent projects hot ventfluid into the frigid water.Image: Wikimedia commons, NationalOceanic and Atmospheric AdministrationThe reaction -- in which a chemical called formate is broken down into hydrogen and carbon dioxide -- was previously thought to be too energy poor to support


Fish see like mammals

By | September 13, 2010

The archer fish, a skilled marksmen that shoots insects down from trees by spiting streams of water, spots prey that aren't in line with what's behind them, an ability once thought to be found only in mammals, according to a linkurl:study; published in Proceedings of the National Academy of Sciences (PNAS) today (13th September). The results suggest that the ability to see objects oriented differently than their backgrounds is "a fundamental


Top 7 hidden jewels

By | September 13, 2010

#1 Long fingers, long toes Darwin suggested that bipedal locomotion allowed our hands to evolve the necessary dexterity for tool handling, but a new study proposes that human hands and feet coevolved: Selection on the toes led to parallel changes in the hands.Photo by Pierre79, linkurl:Wikimedia Commons; C. Rolian et al., "The coevolution of human hands and feet," linkurl:Evolution,;


Video: Fast plants

By | September 10, 2010

Marvels of evolution and adaptation, plants and fungi have developed myriad methods of spreading their seeds or spores. Some of these dispersal events happen with blinding speed, and researchers are exploring these dramatic behaviors in the world's fastest plants and fungi using ultra-high speed video cameras. Feast your eyes on our smorgasbord of fast-moving, spore-shooting, seed-spreading organisms. Blob begets smaller blob -- meet Sphaerobolus stellatus This is the Sphaerobolus stellatus, c


Video: How roots grow

By | September 9, 2010

A group of researchers literally watched meristem genes turn on and off in a cyclical fashion in the developing roots of higher plants, such as conifers and ferns, according to a study published in Science today (10th September). This oscillating expression, they say, is how these plants form their complex root systems. As the root meristem grows downward into the soil, it produces undifferentiated cells that, once assigned their function, will form the intricate root system of the plant. What

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When is self-plagiarism ok?

By | September 9, 2010

When linkurl:Robert Barbato; of the E. Philip Saunders College of Business at Rochester Institute of Technology (RIT) heard he was being accused of plagiarizing his own work, he was a bit surprised. "I can't plagiarize myself -- those are my own words," he said. Image: Wikimedia commons, Guillaume CarelsAnd he is not alone in his views. Some scientists and publishers argue that it's "unavoidable" for scientists to re-use portions of their own text (


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