News tagged with auxin
Why do plant roots grow down and not up?
(PhysOrg.com) -- It is essential for roots to grow down so they can explore the soil and maximise their water uptake. But how they know that is a question that has fascinated scientists since Darwin. Now scientists ...
Mar 08, 2012 |
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How plants put down roots
In the beginning is the fertilized egg cell. Following numerous cell divisions, it then develops into a complex organism with different organs and tissues. The largely unexplained process whereby the cells ...
Mar 15, 2010 |
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Protein power for Jack and the beanstalk
Plant geneticists are on a determined quest -- to control auxin, a powerful plant growth hormone. Auxin tells plants how to grow, where to lay down roots, how to make tissues, and how to respond to light and gravity. Knowing ...
May 17, 2010 |
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Getting to the root of nutrient sensing
New research published by Cell Press in the June 15th issue of the journal Developmental Cell, reveals how plants modify their root architecture based on nutrient availability in the soil.
Jun 14, 2010 |
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How plants counteract against the shade of larger neighbors
Plants that "lose the battle" during competitiveness for light because they are shaded by larger neighbours, counteract. They adapt by rapid shoot elongation and stretch their leaves towards the sun. The molecular basis of ...
Dec 17, 2010 |
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Biologists learn how plants synthesize their growth hormone auxin
Biologists at the University of California, San Diego have succeeded in unraveling, for the first time, the complete chain of biochemical reactions that controls the synthesis of auxin, the hormone that regulates nearly all ...
Oct 24, 2011 |
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Plant hormone auxin triggers a genetic switch
(PhysOrg.com) -- During the development of organisms, a particular event repeatedly occurs: a signal appears temporarily, but the processes it triggers must be maintained – for example, when the fate ...
Apr 18, 2011 |
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Scientists gain insight on how plants bend toward light
(PhysOrg.com) -- A Purdue University-led study may change how scientists think about how some plants bend toward light.
Jun 09, 2011 |
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Auxin
Auxins are a class of plant hormones (or plant growth substances) with some morphogen-like characteristics. Auxins have a cardinal role in coordination of many growth and behavioral processes in the plant's life cycle and are essential for plant body development. Auxins and their role in plant growth were first described by the Dutch scientist Frits Went. Kenneth V. Thimann isolated this phytohormone and determined its chemical structure as indole-3-acetic acid. Went and Thiman then co-authored a book on plant hormones, Phytohormones, in 1937.
For more information about Auxin, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
