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Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
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An Original Green Thumb
19 May 1997 (All day)
Yesterday would have been the 94th birthday of Frits Went, a Dutch-born American botanist who discovered the role of the plant hormone auxin and paved the way for the development of weed killers, fertilizers, and genetically engineered crops.
While studying oat seedlings, Went found that auxin produced at the tip was distributed preferentially down the dark side of the shoot, which explained why seedlings grow faster on that side and bend toward the light. In 1927, his theory of phototropism was not well accepted, but eventually it shaped the new field of agricultural chemistry.
Went also developed the first phytotron--a greenhouse that mimics natural climatic conditions--which was built in 1949 at the California Institute of Technology. And on a trip to Brazil in the late 1960s, Went discovered that Amazon forest soil was riddled with a network of fungi, which he proposed digest the tree litter and pass nutrients to intertwined tree roots. That theory was used to bolster the growing movement to save the rain forest from clear-cutting.
[Source: Emily McMurray, Ed., Notable Twentieth Century Scientists (Gale Research Inc., ITP, 1995).]