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image: Smoke Detectors

Smoke Detectors

By | August 1, 2013

Ancient receptors in seeds bind a small molecule in smoke that promotes germination.

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image: Week in Review, July 22–26

Week in Review, July 22–26

By | July 26, 2013

Faux stem cells; X chromosome involved in sperm production; rewarding peer review; clues to flatworm regeneration; an ethereal glow signals death

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image: A Wild Stem Cell Chase

A Wild Stem Cell Chase

By | July 24, 2013

A rigorous new study provides strong evidence that very small embryonic-like stem cells hypothesized to be found in mice and humans do not exist.

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image: Dying Worms Emit Ethereal Glow

Dying Worms Emit Ethereal Glow

By | July 24, 2013

A head-to-tail wave of blue fluorescence signals the death of a nematode worm.

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image: Gene Expression Flags Fever Source

Gene Expression Flags Fever Source

By | July 16, 2013

Constructing transcriptional profiles from the blood of children with fevers can help determine whether the cause is viral or bacterial.

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image: Microbial Diversity

Microbial Diversity

By | July 14, 2013

By sequencing bacterial and archaeal genomes from single cells, scientists have filled in many uncharted branches of the tree of life.

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image: Gene Therapy Coming of Age?

Gene Therapy Coming of Age?

By | July 11, 2013

Using lentiviral vectors to replace mutated genes in blood stem cells, scientists successfully treat two rare diseases apparently without causing harmful side effects.

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image: Bacterial Gene Transfer Gets Sexier

Bacterial Gene Transfer Gets Sexier

By | July 9, 2013

Mycobacterium smegmatis can donate larger portions of its genome to other bacteria than previously thought, approaching the level of gene shuffling seen in sexual reproduction.

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image: The Downside of Antibiotics?

The Downside of Antibiotics?

By | July 3, 2013

Bacteria-killing antibiotics might also damage a person’s tissues.

3 Comments

image: Temperature-Sensing Fat Cells

Temperature-Sensing Fat Cells

By | July 1, 2013

Researchers discover that unlike brown fat cells, white fat cells can directly sense cooling temperatures to switch on genes that control heat production.

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