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Latest Plant virus Stories

2014-04-25 09:56:48

LMU researchers have identified the structural features that enable the innate immune system to discriminate between viral and endogenous RNAs in living cells. When viruses infect cells, they take control of cellular metabolism and hijack cellular resources for the production of viral proteins. This process is dependent on viral RNA molecules that are delivered directly to (in the case of RNA viruses) and/or newly synthesized in the host cell, and provide the blueprints for the fabrication...

Honeybees Infected By Plant Virus
2014-01-21 09:51:41

Brett Smith for redOrbit.com - Your Universe Online A virus that typically infects plants has been found to infect honeybees and could be responsible for the widespread collapse of honeybee colonies around the world, according to a new report in the journal mBio. The study team said they made their discovery when conducting routine screenings of bees for common and atypical viruses. The screenings “resulted in the serendipitous detection of Tobacco Ringspot Virus, or TRSV, and...

Defending Food Crops Using Whitefly Experimentation To Prevent Contamination Of Agriculture
2013-11-08 10:33:56

The Journal of Visualized Experiments On November 8th, JoVE, the Journal of Visualized Experiments, will introduce a new technique to aid in the development of defenses against diseases threatening food crops worldwide. The method, published under the title Transmitting Plant Viruses Using Whiteflies, is applicable to such at-risk crops as tomatoes and common bean plants. The whitefly method provides a means of interfering with the plant-contamination process as well as the cultivation of...

2012-02-02 22:44:50

Using virus vector-mediated RNAi enables scientists to rapidly study the function of insect genes More than 200,000 insects species are herbivores. They depend on plants for food and have adapted their metabolism accordingly in the course of evolution to render plant defenses, such as the toxins plants produce to fend off herbivores, ineffective. The operating instructions of these detoxification processes are coded in different genes. Insects have evolved an enormous diversity of...

Raw Sewage Is Home To Millions Of Undescribed Viruses
2011-10-04 10:53:53

Biologists have described only a few thousand different viruses so far, but a new study reveals a vast world of unseen viral diversity that exists right under our noses. A paper to be published Tuesday, October 4 in the online journal mBio® explores ordinary raw sewage and finds that it is home to thousands of novel, undiscovered viruses, some of which could relate to human health. Viruses are everywhere: every moment of every day, humans are exposed to viruses on surfaces, in foods,...

2010-12-06 07:20:00

Virally structured nano-electrodes boost energy capacity ten-fold COLLEGE PARK, Md., Dec. 6, 2010 /PRNewswire-USNewswire/ -- Viruses have a bad rep--and rightly so. The ability of a virus to quickly and precisely replicate itself makes it a destructive scourge to animals and plants alike. Now an interdisciplinary team of researchers at the University of Maryland's A. James Clark School of Engineering and College of Agriculture and Natural Resources, brought together by Professor Reza...

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2010-11-04 11:22:23

University of Illinois researchers have confirmed the first report of a potential new virus belonging to the genus Marafivirus in switchgrass, a biomass crop being evaluated for commercial cellulosic ethanol production. The virus is associated with mosaic and yellow streak symptoms on switchgrass leaves. This virus has the potential of reducing photosynthesis and decreasing biomass yield. Members of this genus have been known to cause severe yield losses in other crops. For example, Maize...

2010-02-12 13:32:49

Scientists have pinpointed specific mutations that allow a common plant virus to infect new species, according to research published in the March issue of the Journal of General Virology. Understanding the genetics of the key interactions between viruses and hosts could provide insight to how some viruses manage to jump the species barrier and even give us a better idea of how animal diseases are generated. Researchers from Saga University, Japan studied the genetic changes that took place...

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2010-02-02 07:42:44

A common plant virus lures aphids to infected plants by making the plants more attractive, but when the insects taste the plant, they quickly leave for tastier, healthier ones. In the process, the insects rapidly transmit the disease, according to Penn State entomologists. "The virus improves the cues that insects use to identify food by elevating some aspect of a trait that is already in the plant," said Mark C. Mescher, assistant professor of entomology. "In this case they appear to elevate...

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2008-10-02 13:50:09

Findings may lead to new ways to protect crops and make other useful products Flexible filamentous viruses make up a large fraction of known plant viruses and are responsible for more than half the viral damage to crop plants throughout the world. New details of their structures, which were poorly understood, have been revealed by scientists using a variety of sophisticated imaging techniques at the U.S. Department of Energy's Brookhaven National Laboratory and collaborating institutions....


Latest Plant virus Reference Libraries

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2011-02-23 21:28:34

A virus is a small infectious agent that replicates inside the living cells of organisms. It is a small infectious agent that can replicate only inside the living cells of organisms. Most are too small to be seen by anything but a microscope and they infect all organisms from animals to plants to bacteria. The first one discovered was the tobacco virus in 1898. Since then around 5,000 viruses have been described in detail although there are millions of different types. They are found in...

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2011-02-23 17:36:42

Potato virus Y (PVY) is a plant pathogenic virus of the family Potyviridae. It is one of the most important plant viruses affecting potatoes. Infection results in various symptoms depending on the strain. Production loss is the most mild of the symptoms and "˜potato tuber necrotic ringspot disease' is the worst. Ringspot renders potatoes unmarketable and can therefore result in a major loss of income. Aphid vectors transmit PVY but it can also remain dormant in seed potatoes. The South...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'