News tagged with plant hormone
Steroids control gas exchange in plants
Plants leaves are sealed with a gas-tight wax layer to prevent water loss. Plants breathe through microscopic pores called stomata (Greek for mouths) on the surfaces of leaves. Over 40% of the carbon dioxide, CO2, in the ...
Feb 05, 2012 |
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Study provides new details of fundamental cellular process
A recent Van Andel Research Institute (VARI) study published in the journal Science investigating the molecular structure and function of an essential plant hormone could profoundly change our understanding of a key cell p ...
Jan 23, 2012 |
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New tool puts plant hormone under surveillance
(PhysOrg.com) -- Charles Darwin was the first to speculate that plants contain hormones. His pioneering research led to the identification of the very first and key plant growth hormone — auxin — ...
Jan 16, 2012 |
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A major step forward towards drought tolerance in crops
When a plant encounters drought, it does its best to cope with this stress by activating a set of protein molecules called receptors. These receptors, once activated, turn on processes that help the plant ...
Dec 19, 2011 |
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Findings on biochar, greenhouse gas emissions and ethylene
Adding a charred biomass material called biochar to glacial soils can help reduce emissions of the greenhouse gases carbon dioxide and nitrous oxide, according to U.S. Department of Agriculture (USDA) scientists.
Dec 13, 2011 |
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Planting improves heart rate, stress levels of mentally challenged adults
Participation in horticultural activities can improve confidence and social skills, cultivate a positive attitude, and rejuvenate the mind and body. Many studies have emphasized the effects of horticultural activities in ...
Medicine & Health / Psychology & Psychiatry
Dec 12, 2011 |
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Spring's rising soil temperatures see hormones wake seeds from their winter slumber
Dormant seeds in the soil detect and respond to seasonal changes in soil temperature by changing their sensitivity to plant hormones, new research by the University of Warwick has found.
Dec 12, 2011 |
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Stronger corn? Take it off steroids, make it all female
A Purdue University researcher has taken corn off steroids and found that the results might lead to improvements in that and other crops.
Nov 30, 2011 |
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Herbicide may affect plants thought to be resistant
Purdue University researchers have discovered a fine-tuning mechanism involved in plant root growth that has them questioning whether a popular herbicide may have unintended consequences, causing some plants to need more ...
Nov 22, 2011 |
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Thanksgiving in space may one day come with all the trimmings
(PhysOrg.com) -- Future astronauts spending Thanksgiving in space may not have to forgo one of the most traditional parts of the day's feast: fresh sweet potatoes.
Space & Earth / Space Exploration
Nov 21, 2011 |
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On guard against drought
Identification of a gene that helps plants to conserve water under drought conditions will bring biologists closer to understanding how plants tolerate drought. Researchers, led by Takashi Kuromori at Japan's ...
Oct 28, 2011 |
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Plant compound reduces breast cancer mortality
Phytoestrogens are plant compounds which, in the human body, can attach to the receptors for the female sexual hormone estrogen and which are taken in with our daily diet. A number of findings have attributed a cancer protective ...
Sep 13, 2011 |
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A new role for cytokinin plant hormones
When plants, including crops, are exposed to environmental stresses such as drought or high salinity, abscisic acid (ABA), a stress-responsive hormone is synthesized to induce a protective response. At the same time, the ...
Sep 09, 2011 |
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New component of a plant steroid-activated pathway discovered
Plant biologists have been working for years to nail down the series of chemical signals that one class of plant hormones, called brassinosteroids, send from a protein on the surface of a plant cell to the cell's nucleus. ...
Aug 18, 2011 |
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Plants switch off growth signals by targeting 'used' receptor molecules for destruction
Plants coordinate growth using hormones called brassinosteroids (BR), and defects in the associated signaling pathway can result in profoundly stunted development. For example, researchers have identified ...
Aug 12, 2011 |
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