Plant Defense System Current Events | Plant Defense System News
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Researcher discovers pathway plants use to fight back against pathogens
Plants are not only smart, but they also wage a good fight, according to a University of Missouri biochemist. Previous studies have shown that plants can sense attacks by pathogens and activate their defenses. view more (2008-04-01)
Too Much of a Good Thing: Understanding Plants' Overactive Immune System Will Help MU Researchers Build Better Crops
A plant's immune system protects the plant from harmful pathogens. If the system overreacts to pathogens, it can stunt plant growth and reduce seed production. view more (2009-05-28)
In evolutionary arms race, a bacterium is found that outwits tomato plant's defenses, Cornell study finds
An arms race is under way in the plant world. It is an evolutionary battle in which plants are trying to beef up their defenses against the innovative strategies of pathogens. view more (2007-07-19)
Ume'å scientist presents discoveries about natural immunity in Science
A team including scientists at UCMP (Ume'å Center for Molecular Pathogenesis), a research unit at Ume'å University, shows in last week's issue of the journal Science that the protein PGRP-LC plays a crucial role in so-called innate immunity. Professor Dan Hultmark, post-doctoral fellow Svenja Stöven, and doctoral candidate Thomas... view more... (2002-03-04)
Catastrophic shift in species diversity and productivity of an ecosystem
Ecology and environmental management is largely predicated on the view that ecosystems respond to environmental changes in a smooth and straightforward way. However, in Ecology Letters, May, Schmitz reports on a long-term field experiment that may prompt a hard, critical look at this reigning view. In the experimental system, top predators... view more... (2004-05-04)
Chemical Cudgel in Plants
Defense mechanisms of single-celled algae Plankton are at the bottom of the food chain in all natural bodies of water and are thus correspondingly important for their ecological balance. In the cycle of eating and being eaten it isn't only fish and whales that prey on these tiny animals and plants - they also eat each other. For example, a variety... view more... (2000-11-29)
SEK 20 million for brain tumor research
The M'Īrit and Hans Rausing Charitable Foundation in England has awarded SEK 20 million over five years to a research team at the Faculty of Medicine at Lund University in Sweden. The team is conducting the so-called BRIGTT Project (BRain Immuno Gene Tumor Therapy), which is pursuing laboratory work and clinical research to try to find new methods... view more... (2003-06-25)
Prairie dogs: influencing the accumulation of metals in plants?
Prairie dogs may seem like harmless little creatures, but they can inflict serious injury on plants simply by snacking on them. Plants cannot flee from their furry predators, so how do they avoid becoming a prairie dog's lunch? view more (2009-06-24)
Chronic Infection Now Clearly Tied to Immune-System Protein
The reason deadly infections like human immunodeficiency virus (HIV) and hepatitis C never go away is because these viruses disarm the body's defense system. view more (2009-05-15)
Plants tag insect herbivores with an alarm
Rooted in place, plants can't run from herbivores—but they can fight back. Sensing attack, plants frequently generate toxins, emit volatile chemicals to attract the pest's natural enemies, or launch other defensive tactics. view more (2007-05-10)
Elevated CO2 in atmosphere weakens defenses of soybeans to herbivores
In research to be presented at the annual meeting of the American Society of Plant Biologists in Chicago (July 7-11, 2007), scientists will show that elevated CO2 may negatively impact the relationship between some plants and insects. view more (2007-07-09)
Grazer diversity counteracts plant diversity effects on ecosystem functioning in seagrass beds
Several influential experiments have shown that high plant diversity enhances ecosystem productivity, animal diversity, and invasion resistance. Yet theory predicts that plant and herbivore diversity, which often co vary in nature, should have countervailing effects on ecosystem properties. In the July issue of Ecology Letters, Duffy, Canuel, and... view more... (2003-07-02)
Researchers discover primer to plant defense system
By identifying a novel compound that primes a plant's immune system, researchers at Oak Ridge National Laboratory and the University of Chicago may be on a path to developing disease-resistant plants. view more (2009-04-06)
An unexpected outcome of atmospheric CO2 enrichment
Unseen belowground interactions impact the composition of natural plant communities. Mycorrhizae, symbiotic associations between soil fungi and plant roots, help plants acquire soil nutrients but also drain substantial carbon from plants. Whether mycorrhizae help or hinder plant growth depends upon the balance between nutrient benefits and carbon... view more... (2003-05-22)
Possible new hope for crops battling parasitic infection
Scientists from Ghent University and VIB (The Flemisch Institute for Biotechnology) have demonstrated how nematodes, also known as roundworms, manipulate the transport of the plant hormone auxin in order to force the plant to produce food for them. view more (2009-01-16)
National Academies advisory: Critical minerals and national defense stockpile
The United States uses more than 7.5 trillion pounds of nonfuel minerals each year to produce everyday items such as mobile phones and cars. view more (2007-10-03)
Plant Communication: Sagebrush Engage in Self-Recognition and Warn of Danger
"To thine own self be true" may take on a new meaning-not with people or animal behavior but with plant behavior. view more (2009-06-22)
Whitefly spreads emerging plant viruses
A tiny whitefly is responsible for spreading a group of plant viruses that cause devastating disease on food, fiber, and ornamental crops, say plant pathologists with The American Phytopathological Society (APS). view more (2007-01-19)
Thale cress goes on the defensive
Thale cress has a complicated defence technique against insects and microorganisms that use the plant as a source of food. view more (2007-05-15)
Seed banks preserve plant diversity
'Some seed gene banks contain more higher plant species per square meter than anywhere else on the planet', write Simon Linington and colleagues of the Millenium Seed Bank, Kew, in the October issue of Biologist. This helps to 'ensure plant diversity is available long term for use in development or habitat restoration', they explain. Although... view more... (2003-10-02)
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