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Latest Debra Brock Stories

Model Organisms Gone Wild
2013-09-13 14:08:40

Washington University in St. Louis Amoebas that are placid, model organisms in the lab, farm bacteria and carry guards to protect their crops in the wild Model organisms, brought into labs because they are easy to work with, adapt to the lab, often shedding characteristics that allowed them to survive in the wild. Scientists who work with model organisms rarely look at the wild strains, but when they do, they can be surprised by what they find. This is what happened with the...

Tiny Single-celled Organisms Have Amazingly Complicated Social Lives
2013-07-30 09:06:00

Washington University in St. Louis In 2011, Nature announced that scientists had discovered a single-celled organism that is a primitive farmer. The organism, a social amoeba called Dictyostelium discoideum, picks up edible bacteria, carries them to new locations and harvests them like crops. D. discoideum enjoyed a brief spell in the media spotlight, billed as the world's smallest farmer. Now a collaboration of scientists at Washington University in St. Louis and Harvard University...

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2011-01-20 06:42:08

A species of amoeba -- Dictyostelium discoideum -- has shown primitive farming behavior as it travels along, according to a new study. In results of the study, reported Jan. 19 in the journal Nature, evolutionary biologists Joan Strassmann and David Queller of Rice University show that the social amoebae (commonly known as slime molds) increase their odds of survival through a rudimentary form of agriculture. Research by lead author Debra Brock, a graduate at Rice, found that some amoebae...


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blee
  • Color; hue; complexion.
This word is Middle English in origin.
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