Navigation Links
Invasive species harms native hardwoods by killing soil fungus

olved over millions of years."

Stinson and her colleagues found that garlic mustard targets arbuscular mycorrhizal fungi (AMF), which form mutually beneficial relationships with many forest trees. These fungi have long filaments that penetrate the roots of plants, forming an intricate interwoven network that effectively extends the plant's root system. AMF depend on plants for energy and plants depend on the fungi for nutrients. When tree seedlings, which depend strongly on AMF, began to decline in the presence of garlic mustard, the researchers suspected that the invasive plant might thwart this symbiotic relationship.

To test this possibility, they collected soil from five forests in Ontario dominated by four species of native hardwoods. First, the researchers tested seedlings' ability to form mycorrhizal relationships in soil with a history of garlic mustard invasion. Three species -- sugar maple, red maple, and white ash -- had significantly less AMF root colonization and grew only about one-tenth as fast in the infested soil. Seedlings grown in sterilized, AMF-free soil taken from invaded and pest-free locations showed similar reductions, suggesting that diminished microbial activity had suppressed tree growth. Other experiments showed that adding garlic mustard extracts to soil impaired AMF colonization and seedling growth, implying that the weed uses phytochemical poisons to disrupt native plants' mycorrhizal associations and stunt their growth.

When the study was subsequently replicated with seedlings of 16 other native plants, only the hardwoods and other woody plants were harmed by the presence of garlic mustard.

"This suggests garlic mustard invades the understory of mature forests by poisoning the allies of its main competitors," Stinson says. "By killing off native soil fungi, the appearance of this weed in an intact forest could stifle the next generation of dominant canopy trees. It could also invite other native and
'"/>

Source:Harvard University


Page: 1 2 3

Related biology news :

1. Invasive parasite destroying fish species
2. Minimally Invasive Cancer Treatments Highlighted
3. Invasive exotic plants helped by natural enemies
4. Invasive species alter habitat to their benefit
5. Invasive ants territorial when neighbors are not kin
6. National Academies advisory: Invasive aquatic species in the Great Lakes
7. New species from old data
8. Same mutation aided evolution in many fish species, Stanford study finds
9. Fibril Shape Is The Basis Of Prion Strains And Cross-species Prion Infection
10. Reservoirs may accelerate the spread of invasive aquatic species, researchers say
11. Small species back-up giant marsupial climate change extinction claim
Post Your Comments:
(Date:7/3/2008)...s little the average person can do to stem the ris... other energy sources. But by improving our energy...an use less energy and save money. , IEEE-USA, i...ne, says that, "Through energy efficiency improvem...educe the depletion of fuel resources; increase en...
(Date:7/3/2008)...r the shape and size of microscopic three-dimensio...loped by biological chemist Jason Shear and his fo...y of Texas at Austin. , Shear and Kaehr fabricat...ructures, known as hydrogels, and have shown that ... the chemistry of the environment in which they we...
(Date:7/2/2008)...Standing in a greenhouse at the University of Rhod... appeared that something had gone terribly wrong. ... last February in hundreds of small pots were dead...n,t surprised. That,s because the pots had been s...hs, and few varieties of grass can put up with tha...
(Date:7/2/2008)... State University faculty member who uses computat...-killing drugs is attracting worldwide attention f...tant professor of chemical and biomedical engineer...iversity College of Engineering, is using high-pow...s recombinant immunotoxins can best be modified in...
Breaking Biology News(10 mins):IEEE-USA position encourages energy efficiency to save households money, reduce carbon emissions 2'Smart' materials get smarter with ability to better control shape and size 2'Smart' materials get smarter with ability to better control shape and size 3Search for salt tolerant grasses aims to improve roadside plantings 2FSU researcher using computers to hone cancer-fighting strategies 2Safety of Synthetic Turf Validated by NJ Test Results 21231 1Safety of Synthetic Turf Validated by NJ Test Results 21231 2Safety of Synthetic Turf Validated by NJ Test Results 21231 3ADA Comments on FDAs Settlement of Dental Amalgam Lawsuit 21229 1ADA Comments on FDAs Settlement of Dental Amalgam Lawsuit 21229 2Charles D McCrary Joins Southern Research Institute Board of Directors 21227 1Charles D McCrary Joins Southern Research Institute Board of Directors 21227 2Finding the source 3A Cells that initiate a common infant tumor identified 21225 1
... easy to make one plus one equal one. But biologic... and cheaper method to electrically fuse cells - a...g clones and finding disease antibodies. , "The ...ery expensive and specialized electrical pulse gen...biological engineering at Purdue University. "My d...
...oking may reduce female fertility by directly affe...ucing the chances the embryo will implant, accordi...ber) in Europe,s leading reproductive medicine jou...am of fertility experts in Portugal and Spain, com...tween non-heavy smokers and heavy smokers, all of ...
...ion on the global burden of malaria remains the su...allocation for malaria control remains "driven by ... assessment of need," say two prominent malaria re... Snow (Kenya Medical Research Institute and Univer...ars since the last global map of malaria endemicit...
...ps are deep-sea environments, usually a few square...low diffusion from the sea floor. Mud volcanoes wh...xtreme environments discovered in the 1990s. These...treme and scientifically challenging environments ...ds of hydrocarbon-rich gas seepage, mud volcanoes ...
Other Biology News:The power of one: A simpler, cheaper method for cell fusion 2The power of one: A simpler, cheaper method for cell fusion 3Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes 2Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes 3Life in the extreme 2
(Date:7/2/2008)...nly Drug Eluting Stent to Demonstrate Superiority ...Available in United States for Tr...Ill., July 2 /- Abbott toda...tion (FDA) approved the,XIENCE(TM) V Everolimus El...oronary artery disease. XIENCE V is the only drug ...
(Date:7/2/2008)...., July 2 /- Bioheart, Inc....cused on the development of,autologous (patient-de...t,of chronic and acute heart damage, today announc... after the Russell Investment Group reconstituted ...dexes on June 27, 2008., According to the Russell...
(Date:7/2/2008)...dvance Commercialization of Expanded Portfolio of ... VANCOUVER, British Columbia, July 2 /PRNewswire/ ...ures Corp. (TSXV: MEV), a company developing and,m...day announced its name,change and the expansion of...he acquisition of two vascular product development...
(Date:7/1/2008)...une 30, 2008) Researchers at The University of Te...merging Infectious Diseases and The University of ...A) have identified a cell type believed to play a ...gainst Francisella tularensis, a respiratory pat...tularemia. The findings will be released this week...
Breaking Biology Technology:FDA Approves Abbott's XIENCE(TM) V Drug Eluting Stent 2FDA Approves Abbott's XIENCE(TM) V Drug Eluting Stent 3FDA Approves Abbott's XIENCE(TM) V Drug Eluting Stent 4FDA Approves Abbott's XIENCE(TM) V Drug Eluting Stent 5Bioheart, Inc., Added to Russell Microcap Index 2Medical Ventures Becomes Neovasc with Two Corporate Acquisitions and $8.3 Million Financing 2Medical Ventures Becomes Neovasc with Two Corporate Acquisitions and $8.3 Million Financing 3Medical Ventures Becomes Neovasc with Two Corporate Acquisitions and $8.3 Million Financing 4UTSA/UTHSCSA publish results on bio-threat agent 2
... criticism of its electronic medical record system...n Health Plan , Madison,s Epic Systems Corp . has...efending its product. , ,Epic Systems, a medical s...iser installation and its electronic records syste...althConnect. , ,The controversy began several wee...
...e to the phrase securities law requirements is the... of the cornea wall, coupled with a dull look and ...st to stick to the essentials. As a result, howeve...our company is raising capital, it is important to...es laws early so that he or she can guide you thro...
...own as one of the leading biotechnology cluste... and stature in a related field: nanotechnology ...ch and nanotech, but certainly not all nanotech is...le at some point the number of nanotech companies ...nal survey might throw a little light on the Midwe...
... served as vice president of regulatory affairs fo...president of AT&T Wisconsin, the company announced...ears, is credited with leading AT&T Wisconsin,s mo... company,s bid to win state approval to offer long...activities in a major wholesale pricing review by ...
Other Biology Technology:Epic responds to critics of electronic record installation 2Epic responds to critics of electronic record installation 3Securities compliance is part of raising capital 2Securities compliance is part of raising capital 3Securities compliance is part of raising capital 4Midwest gaining stature in nanotech research 2Midwest gaining stature in nanotech research 3Midwest gaining stature in nanotech research 4
Goat polyclonal to SIAH Interacting Protein ( Abpromise for all tested applications).
Rabbit polyclonal to Phosphothreonine-X-Phosphotyrosine (HRP) ( Abpromise for all tested applications).
Rat integrin a6b1, mainly associated with epithelial cells. Does not react with rat fibroblasts.
Rabbit polyclonal to MDM2 (phospho S185) ( Abpromise for all tested applications). entrezGeneID: 4193 SwissProtID: Q00987
Biology Products: