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Cooperating Bacteria Mimic van Gogh to Migrate

April 20, 2015

Cooperating Bacteria Mimic van Gogh to Migrate

Jordi van Gestel, Hera Vlamakis and Roberto Kolter show that in the bacterium Bacillus subtilis, cooperation between surfactin-producing and matrix-producing cells drives migration over solid surfaces by the formation of filamentous looped "van Gogh bundles" at the edge of the colony.

Image credit: Jordi van Gestel

04/17/2015

research article

Color Entrains the Circadian Clock

Environmental measurements and physiological recordings, by Lauren Walmsley, Robert Lucas, Timothy Brown and co-authors, reveal that mice not only use changes in the intensity of sunlight to entrain their circadian clock, but also employ blue–yellow color discrimination to detect spectral changes associated with dawn and dusk.

Image credit: Flickr user 白士 李

Color Entrains the Circadian Clock

Recently Published Articles

Current Issue

Current Issue March 2015

04/22/2015

research article

Stress Overcomes Drug Resistance in Malaria Parasites

Resistance to artemisinin antimalarial drugs is jeopardizing malaria control. Con Dogovski, Stanley Xie,

Nectarios Klonis, Leann Tilley and colleagues find that proteasome-mediated stress responses can be targeted to overcome artemisinin resistance and suggest alternate therapeutic regimens and monitoring strategies.

Image credit: Dr Eric Hanssen, Bio21 Institute, University of Melbourne.

Stress Overcomes Drug Resistance in Malaria Parasites

04/22/2015

perspective

Time to Kill off Bar Graphs?

A systematic review of research articles by Tracey Weissgerber, Vesna Garovic and co-authors reveals that poor practice in the presentation of continuous data is widespread in the literature. The authors recommend training for scientific investigators and supply templates for easy use.

Image credit: modified from 10.1371/journal.pbio.1002128.g001

Time to Kill off Bar Graphs?

04/17/2015

research article

Cellular Self-Fusion during Vasculature Pruning

In vivo live imaging of zebrafish embryos, conducted by Anna Lenard, Markus Affolter and colleagues, reveals the diverse cellular activities involved in the pruning of unwanted blood vessels, including the self-fusion of endothelial cells.

Cellular Self-Fusion during Vasculature Pruning

Image credit: journal.pbio.1002126.g002

04/17/2015

Research Article

Flow Directs Cell Migration and Polarity in Vessel Pruning

A study of mouse retina and zebrafish vasculature, from Claudio Franco, Holger Gerhardt and co-workers, shows how differential blood flow patterns direct the orientation and migration of endothelial cells as a mechanism for stabilizing or pruning individual blood vessel segments.

Flow Directs Cell Migration and Polarity in Vessel Pruning

Image credit: doi:10.1371/journal.pbio.1002125.g001

04/10/2015

research article and synopsis

Selection Constrains Genetic Diversity across Species

Russell Corbett-Detig, Daniel Hartl and Timothy Sackton use whole-genome genetic variation data from 40 species to explain why levels of neutral diversity do not scale with population size. Read the accompanying Synopsis.

Selection Constrains Genetic Diversity across Species

Image credit: Flickr user Nikita

04/16/2015

research article and primer

Fly Sex Chromosomes Are Highly Dynamic

Superficially similar karyotypes conceal the true extent of sex chromosome variation; sex chromosome transitions are in fact frequent in flies. Read the Primer.

Fly Sex Chromosomes Are Highly Dynamic

Image credit: Flickr user Marcelo César Augusto Romeo

04/15/2015

Essay

Stopping Marine Invaders

How to classify the impact of non-indigenous species, given the data limitations and uncertainties that are found in marine environments.

Stopping Marine Invaders

Image credit: public domain