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What Makes Plants Grow Toward The Light?
2013-05-28 14:02:26

Technische Universität München Plants have developed a number of strategies to capture the maximum amount of sunlight through their leaves. As we know from looking at plants on a windowsill, they grow toward the sunlight to be able to generate energy by photosynthesis. Now an international team of scientists has provided definitive insights into the driving force behind this movement — the plant hormone auxin. The growth of plants toward light is...

A New Look At How Plants Sense Gravity
2013-02-04 16:31:22

American Journal of Botany Gravity affects the ecology and evolution of every living organism. In plants, the general response to gravity is well known: their roots respond positively, growing down, into the soil, and their stems respond negatively, growing upward, to reach the sunlight. But how do plants sense gravity and how do they direct or signal their cells to grow in response to it? Although botanists understand a great deal about how this works, a recent article in the recent issue...

Space Station Crew Grow Plants Without Gravity
2012-12-07 15:45:57

Lee Rannals for redOrbit.com — Your Universe Online An experiment reported in the journal BMC Plant Biology studied the effects of growing plants without gravity, helping to disprove one theory about how gravity kick-started plant behaviors on Earth. Astronauts growing Arabidopsis plants on the International Space Station tried to determine what plant growth patterns could be influenced by gravity. Plant roots exhibit characteristic behaviors called "waving" and...

2011-10-20 22:49:19

Researchers at Boston University have made discoveries that provide the foundation towards novel approaches to control insects that transmit deadly diseases such as dengue fever and malaria through their study of the Wolbachia bacteria. Their findings have been published in the current issue of Science Express, an online publication of selected papers in advance of the print edition of Science, the main journal of the American Association for the Advancement of Science (AAAS). "Wolbachia...

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2005-03-30 07:22:18

Astrobiology Magazine -- A team of biologists from the University of California, Riverside has used chemical genomics to identify novel compounds that affect the ability of plants to alter their direction of growth in response to gravity, a phenomenon known as gravitropism. The researchers screened a library of 10,000 small molecules, the practice is known as chemical genomics, to identify those that could positively or negatively affect gravity's effect on plant growth, which is closely...


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.