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Latest Plant defense against herbivory Stories

2014-08-05 23:00:19

Mariner Biomedical introduces Deter Exposure Defense SPF 35, a scientifically developed combination of broad spectrum mineral sunscreen, skin protectant and antioxidants to protect skin during extreme outdoor conditions. Also introduced is a new 1 ounce leak proof bottle for Deter Insect Repellent®. Salt Lake City, UT (PRWEB) August 06, 2014 Mariner Biomedical, Inc. exhibiting at the Outdoor Retailer Summer Market, used the opportunity to announce two new products. The company’s...

Plants Respond To Leaf Vibrations Caused By Chewing Caterpillars
2014-07-02 03:34:36

[ Watch The Video: Plants Respond To Leaf Vibrations Caused By Insects’ Chewing ] University of Missouri-Columbia Previous studies have suggested that plant growth can be influenced by sound and that plants respond to wind and touch. Now, researchers at the University of Missouri, in a collaboration that brings together audio and chemical analysis, have determined that plants respond to the sounds that caterpillars make when eating plants and that the plants respond with more...

2014-05-09 19:42:30

MPG Flea beetles outwit their host plant’s mustard oil bomb and use it for their own purposes Almost all herbivorous insects are specialized to feed on specific host plants and have adapted to their chemical defenses. Flea beetles are important pests of cabbage and other cruciferous plants, such as mustard, horseradish and rapeseed. These plants use a sophisticated defense system, known as the mustard oil bomb, to get rid of their enemies : If plant tissues are wounded, glucosinolates...

Extracting Plant DNA From Grasshopper Guts Improves Understanding Of Plant-insect Interactions
2014-02-06 14:12:58

[ Watch the Video: Demonstration of Grasshopper Dissection ] American Journal of Botany Grasshoppers may be small, but the damages they are causing to the US agriculture industry are anything but. Every year, they feed on crops and on rangelands needed for raising livestock, costing landowners millions of dollars. Although they pose a major threat, grasshopper populations play a positive role in cycling nutrients from decomposing plant matter back into the soil. A new method to...

Beetles Defeat Plant Defenses With Help From Microbes
2013-09-10 11:03:44

Penn State Some symbiotic bacteria living inside Colorado potato beetles can trick plants into reacting to a microbial attack rather than that of a chewing herbivore, according to a team of Penn State researchers who found that the beetles with bacteria were healthier and grew better. "For the last couple of decades, my lab has focused on induced defenses in plants," said Gary W. Felton, professor and head of entomology. "We had some clues that oral secretions of beetles suppressed...

Ferns Herbivore Defense
2012-11-21 13:00:05

Max Planck Institute for Chemical Ecology Unlike flowering plants, bracken ferns do not release any odor signals to attract the enemies of their attackers for their own benefit. They dominated the earth for 200 million years and numerous different species can still be found all over the world: mosses, horsetails and ferns. Researchers from the Max Planck Institute for Chemical Ecology in Jena, Germany, have now found out that bracken ferns (Pteridium aquilinum) do not release any...

Biological Pest Control Using Predators Of Insect Eggs And Larvae Increases Plant Fitness
2012-10-16 15:15:40

To solve the acute, global problem of securing food resources for a continuously growing population, we must work constantly to increase the sustainability and effectiveness of modern agricultural techniques. These efforts depend on new insights from plant ecology, particularly from work on native plants that grow in the primordial agricultural niche. Based on field studies on wild tobacco plants in the Great Basin Desert, Utah, USA, researchers of the Max Planck Institute for Chemical...

2012-09-25 23:00:32

New microsite focuses on plant health information for growers Willoughby, OH (PRWEB) September 25, 2012 KeyPlex recently launched the all-new RobustPlants.org, a new microsite dedicated to providing plant health information to growers who are looking to improve crop performance and maximize yields. KeyPlex manufactures and markets micronutrient fertilizers to commercial grower operations via their existing distributor network. They are also a leading researcher on plant health and the most...

2012-04-09 13:25:33

Rice University study links touch-activated genes to both growth and insect defense A new study by Rice University scientists reveals that plants can use the sense of touch to fight off fungal infections and insects. The study, which will be published in the April 24 issue of Current Biology, finds that plant defenses are enhanced when plants are touched. “From previous studies, we knew that plants change their growth in response to touch but we didn´t know how these growth...

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...


Word of the Day
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'