Navigation Links
Uncovering the mystery of a major threat to wheat
Date:6/1/2010

This press release is available in Spanish.

Agricultural Research Service (ARS) scientists have solved a longstanding mystery as to why a pathogen that threatens the world's wheat supply can be so adaptable, diverse and virulent. It is because the fungus that causes the wheat disease called stripe rust may use sexual recombination to adapt to resistant varieties of wheat.

ARS plant pathologist Yue Jin and his colleagues Les Szabo and Marty Carson at the agency's Cereal Disease Laboratory at St. Paul, Minn., have shown for the first time that stripe rust, caused by Puccinia striiformis, is capable of sexually reproducing on the leaves of an alternate host called barberry, a common ornamental. The fungus also goes through asexual mutation. But sexual recombination offers an advantage because it promotes rapid reshuffling of virulence gene combinations and produces a genetic mix more likely to pass along traits that improve the chances for survival.

Barberry (Berberis spp) is already controlled in areas where wheat is threatened by stem rust, caused by another fungal pathogen. But the work by the ARS team is expected to lead to better control of barberry in areas like the Pacific Northwest, where cool temperatures during most of the wheat growing season make stripe rust a particular threat.

The researchers suspended wheat straw infected with the stripe rust pathogen over barberry plants and found that fungal spores from the wheat infected the barberry. They also took infected barberry leaves, treated them to promote the release of spores, and exposed them to wheat. Tests confirmed that the wheat plants were infected within about 10 days.

The researchers began the study last year after finding infected leaves on barberry plants at two sites on the University of Minnesota campus. They initially thought the symptoms were a sign t
'/>"/>

Contact: Dennis O'Brien
Dennis.Obrien@ars.usda.gov
301-504-1624
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

Page: 1 2

Related biology news :

1. Uncovering secrets of life in the ocean
2. Uncovering the secrets of ulcer-causing bacteria
3. Uncovering lithiums mode of action
4. Scientists tackle mystery mountain illness
5. Folate mystery finally solved
6. Men shed light on the mystery of human longevity, study finds
7. Magnetic snakes control fluids, gravity-defying droplets, and solving a dragonfly mystery
8. Cassini on the trail of a runaway mystery
9. Time-sharing tropical birds key to evolutionary mystery
10. 480-million-year-old fossil sheds light on 150-year-old paleontological mystery
11. ASU professor helps solve mystery of glassy water
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/3/2014)... , Dec. 2, 2014   Marvin Test ... innovative test solutions for military, aerospace, and manufacturing ... of its successful TS-900 PXI semiconductor test ... features of high-end systems to customers at a ... compared to traditional ATE. "Our ...
(Date:11/21/2014)... NEW YORK , Nov. 19, 2014  Earlier ... Board at New York College, and one of the ... for biosensor signals that are transmitted from Smartphones to ... there were Smartphones and has one of the earliest ... are discussing its usage in the military, child care, ...
(Date:11/21/2014)... Calif. , Nov. 20, 2014   Atmel® ... leader in microcontroller (MCU) and touch technology solutions, today ... temperature sensors with the widest V cc ... higher temperature accuracy and faster I 2 C bus ... and serial EEPROM memory making them ideal for consumer, ...
Breaking Biology News(10 mins):Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 2Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 4Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4
... Increased summer precipitation apparently helping to spread spores of ... pines in northwestern British Columbia present strong evidence in ... to blame for the outbreak. The blight, caused by ... needles and, in the case of the British Columbia ...
... adult brain can reorganize neural pathways in response to ... and responses of neurons. But it has remained an ... In a new study published in the open-access journal ... continuous monitoring of neurons in the mouse adult visual ...
... the Fungal Research Trust have discovered millions of fungal ... , Aspergillus fumigatus, the species ... to cause disease; and the resulting condition Aspergillosis has ... and bone marrow transplant patients. Fungi also exacerbate asthma ...
Cached Biology News:A new window into structural plasticity in the adult visual cortex 2Pillows - a hot bed of fungal spores 2
(Date:12/17/2014)... Ipsen Biopharmaceuticals, Inc., an affiliate ... IPSEY), today announced that Somatuline® Depot® (lanreotide) ... approved by the U.S. Food and Drug Administration ... (GEP-NETs) in adult patients with unresectable, well or ... improve progression-free survival (PFS). , “The approval of ...
(Date:12/17/2014)... This report is a professional and ... an overview analysis, the report introduces quartz tubing ... industry overview, policy analysis, and news analysis, etc. ... witnessed rapid development with key manufacturers increasing their ... mentions quartz tubing upstream raw materials and equipment, ...
(Date:12/17/2014)... Gene synthesis and bioengineering company ... into a technology access and services agreement with ... proprietary protein engineering technology, known as “ProteinGPS®” to ... extremely excited that the global leader ADM has ... bioengineering technology has now been validated through many ...
(Date:12/17/2014)... 16, 2014  Vermillion, Inc. (NASDAQ: VRML ... today announced the next step in its expanded strategy ... provider with the naming of current Chief Operating Officer, ... Officer, while current Chairman of the Board and CEO ... Chairman. These changes are effective January 1, 2015. ...
Breaking Biology Technology:Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 2Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 5Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 6Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 7Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 82020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 3Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 4
... Halozyme Therapeutics, Inc. (Nasdaq: HALO ... targeting the extracellular matrix for the endocrinology, oncology, ... of $5.5 million from Baxter Healthcare Corporation representing ... terms of its HYLENEX licensing agreement, which provides ...
... ST. JOSEPH, Mich., Jan. 6 GeneGo, Inc., ... curated databases for systems biology,and pathway analysis ... has,renewed its MetaCore licenses for another three years. ... diseases and gynecological therapies,and GeneGo has good coverage ...
... 6 WuXi AppTec, the operating company of WuXi ... and development outsourcing company with operations in China and ... from ThalesNano Inc. for laboratory-based hydrogenation. WuXi joins ... have introduced and adopted the H-Cube technology. , ...
Cached Biology Technology:GeneGo Renews Its Agreement With Bayer Schering Pharma AG for Another Three Years 2WuXi AppTec Selects H-Cube from ThalesNano for Laboratory-based Hydrogenation 2
Indoleamine 2,3-dioxygenase [IDO]...
... Mouse monoclonal [F30 P7 D7 F5] ... all tested applications). ... to Ovalbumin, corresponding to amino acids ... Entrez Gene ID: ...
Recognizes the 41 and 43 kDa G-proteins present in liver plasma membranes and Gq/11alpha expressed in the Sf9 insect cell expression system. Negative for recombinant G(I)alpha subtypes....
Pancreatic Cell Cryopreservation Medium (2X) is intended for the cryopreservation of LT2 Immortalized Pancreatic Mesenchymal Cells (SCR013) and VIT1 Primary Pancreatic Mesenchymal Cells (SCR014)....
Biology Products: