News tagged with hormone signaling
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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Protein love triangle key to crowning bees queens?
A honey bee becomes a royal queen or a common worker as a result of the food she receives as a larva. While it has been well established that royal jelly is the diet that makes bees queens, the molecular path ...
Nov 10, 2011 |
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Research involving thyroid hormone lays foundation for more targeted drug development
Research led by St. Jude Children's Research Hospital scientists advances a strategy for taming the side effects and enhancing the therapeutic benefits of steroids and other medications that work by disrupting the activity ...
Oct 21, 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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Adjustable valves gave ancient plants the edge
Controlling water loss is an important ability for modern land plants as it helps them thrive in changing environments. New research from the University of Bristol, published today in the journal Current Biology, shows ...
Jun 09, 2011 |
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New evidence that fat cells are not just dormant storage depots for calories
Scientists are reporting new evidence that the fat tissue in those spare tires and lower belly pooches — far from being a dormant storage depot for surplus calories — is an active organ that sends chemical signals to other ...
Medicine & Health / Medical research
Sep 01, 2010 |
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Sensor important to understanding root, seedling development
A biosensor utilizing black platinum and carbon nanotubes developed at Purdue University will help give scientists a better understanding of how the plant hormone auxin regulates root growth and seedling establishment.
Aug 23, 2010 |
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Study strengthens link between sirtuins proteins and life extension
(PhysOrg.com) -- A new paper from MIT biology professor Leonard Guarente strengthens the link between longevity proteins called sirtuins and the lifespan-extending effects of calorie restriction.
Medicine & Health / Medical research
Dec 14, 2009 |
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Researchers discover how a brain hormone controls insect metamorphosis
A team of University of Minnesota researchers have discovered how PTTH, a hormone produced by the brain, controls the metamorphosis of juvenile insects into adults.
Dec 03, 2009 |
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Toxic chemicals affect steroid hormones differently in humans and invertebrates
In a study with important consequences for studies on the effects of chemicals on steroid responses in humans, a team of French and American scientists, including Michael E. Baker, PhD, professor in UC San Diego's Department ...
Medicine & Health / Medical research
Jun 29, 2009 |
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