A destructive pathogen is impacting Hawaiis production of anthuriums, a plant known for its heart-shaped flower and leaves, say plant pathologists with The American Phytopathological Society (APS).
Anthuriumss flower portion, or spathe, is available in a variety of colors including brilliant shades of red, orange, pink, and salmon. Although they originated in Central America, anthuriums are now the most important cut flowers in the Hawaiian floriculture industry, said Anne Alvarez, Department of Plant and Environmental Protection Sciences, University of Hawaii, Honolulu, HI. In 2004, Hawaiis cut flower sales were valued at $13.1 million, with anthuriums ranking as the top seller at $4.7 million. At the peak of production in the early 1980s, Hawaii was supplying up to 232,000 dozen flowers per month to the world.
Anthurium production levels have been significantly reduced due to bacterial blight caused by the bacterial pathogen Xanthomonas axonopodis pv. dieffenbachiae. This disease was first reported in Kauai, HI in 1971 but had little impact on the industry until 1981 when plants began to die in large numbers on farms in Hilo, HI. "Once introduced into a new growing area, bacterial blight may result in 50-100 percent loss of plants," said Alvarez.
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28.03.2017 | Aarhus University
Asian dust providing key nutrients for California's giant sequoias
28.03.2017 | University of California - Riverside
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
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