Biologists have discovered that the air pollutant nitric oxide acts as a plant hormone to delay flowering in plants. The scientists discovered that while plants produce their own internal nitric oxide to regulate flowering, they are also influenced by external concentrations of the chemical.
The scientists said that although their findings are basic in nature, they suggest that the massive amounts of nitric oxide emitted as air pollutants from burning fossil fuels could affect the critical process of plant flowering. Since the decision to flower is so critical to reproduction, a delay in flowering could have important impacts on ecosystems, both plant and animal, they said.
The researchers, led by Duke University biologist Zhen-Ming Pei, published their findings in the Sept. 24, 2004, issue of the journal Science. Co-lead authors were Yikun He and Ru-Hang Tang from Duke. Other co-authors were Yi Hao, Robert Stevens, Charles Cook, Sun Ahn, Liufang Jing, Zhongguang Yang, Longen Chen, Fabio Fiorani and Robert Jackson, all of Duke; and Fangqing Guo and Nigel Crawford from the University of California at San Diego. The research was funded by the National Science Foundation and Duke University.
Dennis Meredith | EurekAlert!
Gene therapy shows promise for treating Niemann-Pick disease type C1
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'Neighbor maps' reveal the genome's 3-D shape
27.10.2016 | International School of Advanced Studies (SISSA)
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
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