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UCR researchers examine how some invasive plants gain a foothold
01-09-2007 · EurekAlert!When it comes to controlling invasive weeds, sex might be a useful weapon, according to research from UC Riverside geneticist Norman Ellstrand in an article in the Proceedings of the National Academies of Science.
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Keywords: ucr, researchers, examine, invasive, plants, gain, foothold, researcher, plant
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- Alien plants attack using 'resource conservation' as weapon, researchers say
05-01-2007 · EurekAlert!
Biologists have long assumed that alien plant species pose less of a threat in resource-poor environments because they are less able to compete with indigenous plants, which have adapted to their habitats over thousands of years. But a new study by Stanford University researchers finds that invasive plants can flourish in low-resource environments by adopting efficient ways to use available resources.
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- UD plant biologist uncover top wetland plant's hidden weapon
10-11-2007 · EurekAlert!
Scientists at the University of Delaware have uncovered a hidden weapon that one of the most invasive wetland plants in the United States uses to silently and efficiently "bump off" its neighbors.The invasive strain of Phragmites australis, or common reed, believed to have originated in Eurasia, exudes from its roots an acid so toxic that the substance literally disintegrates the structural protein in the roots of neighboring plants, thus toppling the competition.
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- Study explains how pathogens evolve to escape detection
07-18-2007 · EurekAlert!
In the evolutionary battle in which plants are trying to beef up their defenses against pathogens, Cornell researchers have discovered a bacterium that infects tomatoes by injecting a special protein into the plant's cells and undermines the plant's defense system.
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- UD plant biologists uncover top wetland plant's hidden weapon
10-11-2007 · EurekAlert!
Scientists at the University of Delaware have uncovered a hidden weapon that one of the most invasive wetland plants in the United States uses to silently and efficiently "bump off" its neighbors.The invasive strain of Phragmites australis, or common reed, believed to have originated in Eurasia, exudes from its roots an acid so toxic that the substance literally disintegrates the structural protein in the roots of neighboring plants, thus toppling the competition.
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- Researchers JAZ(zed) about plant resistance discovery
07-18-2007 · EurekAlert!
The mystery of how a major plant hormone works to defend plants against invaders has now been revealed, thanks to collaborative research efforts by Michigan State University and Washington State University. MSU scientists Sheng Yang He and Gregg Howe were part of two back-to-back discoveries that solved the mystery, described in the July 18 online issue of the journal Nature.
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- Amoebae control cheating by keeping it in the family
07-05-2007 · EurekAlert!
Rice University researchers have shown how cooperative single-celled amoebae rely on family ties to keep cheaters from undermining the health of their colonies. In a study combining careful field work with painstaking laboratory research, biologists examined thousands of spores of the soil microbe Dictyostelium discoideum. Field studies revealed high-relatedness in wild colonies, and laboratory studies showed that cheating mutants couldn't gain a foothold in highly related colonies.
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- Higher levels of pollutants found in fish caught near a coal-fired power plant
11-07-2007 · EurekAlert!
Emissions from coal-fired power plants may be an important source of water pollution and fish contamination, say researchers at the University of Pittsburgh. Researchers found higher-than-EPA-recommended levels of mercury and elevated levels of selenium in channel catfish caught in a rural area downwind from a coal-fired power plant. Based on testing of 63 fish, they found that fish caught near the power plant had 19 times more mercury than store-bought fish.
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- Researchers find that bumblebees' flower choice matters
10-27-2006 · EurekAlert!
Bees play a vital role in the pollination of native wildflowers, and UWM researchers are studying how invasive species interfere with seed production in these native plants.
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- Mellow in Europe, crazy in America
02-26-2007 · EurekAlert!
Reed canarygrass stays put in Europe where it's native, but is aggressively expanding into wetlands across North America. Using this grass as a model, University of Vermont researchers have revealed a new way that some plants become invasive: Multiple introductions of the same species from numerous regions lead to new strains which grow more aggressively than the original plants. With climate change, this kind of invader may become increasingly successful.
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- 2-protein team would be lost without each other
04-19-2007 · EurekAlert!
Just as a hard-charging person sometimes needs a calming partner to be more effective, so it is with a pair of critical proteins that promote cell division and growth in the rapidly expanding root tip of plants. This emerging picture of the complex interplay between genes and proteins is the latest finding to come from Duke University researchers' examination of the model mustard plant Arabidopsis thaliana.
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