News tagged with host plants
Scientists sequence genomes of two major threats to American food and fuel
An international team of researchers co-led by a University of Minnesota scientist has sequenced the genomes of two fungal pathogens -- one that threatens global wheat supplies and another that limits production of a tree ...
May 05, 2011 |
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Instant evolution in whiteflies: Just add bacteria
In just six years, bacteria in the genus Rickettsia spread through a population of the sweet potato whitefly (Bemisia tabaci), an invasive pest of global importance. Infected insects lay more eggs, develo ...
Apr 07, 2011 |
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Identity theft by aphids
Collaborative research at the University of Guam has people asking: "What IS a species" and entomologists wondering about the relationship between an insect species and the host plant or plants it feeds on.
Jan 19, 2011 |
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Evolutionary arms race between smut fungi and maize plants
Fungi are a major cause of plant diseases and are responsible for large-scale harvest failure in crops like maize and other cereals all over the world. Together with scientists from the Helmholtz Zentrum in ...
Dec 09, 2010 |
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Scientists study essential oils to attract asian citrus psyllid
(PhysOrg.com) -- Chemicals emitted by citrus plants and their relatives that attract Asian citrus psyllids are being tested by U.S. Department of Agriculture (USDA) scientists and their cooperators, and could ...
Dec 08, 2010 |
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Walk in the park yields biological treasure
A newly identified relationship between a fly and a weedy mustard-type plant promises to answer many long-standing questions surrounding the evolutionary arms race between plant-eating insects and their host ...
Nov 19, 2010 |
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Scientists reveal the sex wars of the truffle grounds
They are one of the most highly prized delicacies in the culinary world, but now scientists have discovered that black truffles are locked in a gender war for reproduction. The research, published in New Ph ...
Oct 25, 2010 |
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Six times more insects in tropical mountains
How many species of insects exist? Umea University researcher, Genoveva Rodriguez-Castaneda, found that in tropical mountains there are six times more insects than shown in global calculations. The insects ...
Sep 06, 2010 |
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Researcher Studies How Flowers Fight Back Against Damaging Insect Visitors
Though summer's flowers appear delicate and carefree to us, in fact plants must be tough enough to defend their blossoms against antagonists including florivores and nectar robbers, that is, insects who eat, ...
Aug 03, 2010 |
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Ability to tolerate enemies influences coevolution
Stay and fight, or flee? These are usually the alternatives facing a victim when it is attacked by an enemy. Two researchers from Lund University have now collected and discussed various examples from the ...
Mar 19, 2010 |
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Oviposition behaviour of pest insects keeps Bt-cotton durably resistant
The oviposition behaviour of insect pests results in an improved durability of insect resistance in so-called Bt-crops, while promoting the survival of pest insects elsewhere in nature. This is the result ...
Mar 03, 2010 |
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Roundworm Repository Contributes to Agricultural Wellbeing
(PhysOrg.com) -- Agricultural Research Service (ARS) scientists in Beltsville, Md., manage a most unusual sort of insurance: 43,000 slides and vials containing all manner of wormlike organisms called nematodes, ...
Jan 05, 2010 |
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Acacias use ants to guard flowers
(PhysOrg.com) -- Research by Dr Nigel Raine, Senior Lecturer in Animal Behaviour at Royal Holloway, University of London has revealed how a special plant-ant relationship thrives on give and take for mutual ...
Jan 04, 2010 |
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Inconspicuous leaf beetles reveal environment's role in formation of new species
(PhysOrg.com) -- Unnoticed by the nearby residents of St. Johnsbury, Vermont, tiny leaf beetles that flit among the maple and willow trees in the area have just provided some of the clearest evidence yet that ...
Oct 30, 2009 |
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Potato blight plight looks promising for food security
Over 160 years since potato blight wreaked havoc in Ireland and other northern European countries, scientists funded by the Biotechnology and Biological Sciences Research Council (BBSRC) finally have the blight-causing pathogen ...
Aug 10, 2009 |
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