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Latest Wheat diseases Stories

2012-08-31 13:46:18

Experts at Beijing meeting report progress in preparing farmers to resist Ug99; Warn that vast wheat-growing regions of N. Africa, Central Asia remain at-risk The world's top wheat experts today reported a breakthrough in their ability to track Ug99 and related strains of a deadly and rapidly mutating wheat pathogen called stem rust that threatens wheat fields from East Africa to South Asia. With data submitted by farmers and scientists from fields and laboratories, the creators of the...

2012-04-11 22:32:18

More than 600 million people could be fed each year by halting the spread of fungal diseases in the world's five most important crops, according to research published today in the journal Nature. Furthermore, data reviewed by scientists suggests that in 70% of cases where infectious disease causes the extinction of a type of animal or plant, an emerging species of fungus is behind the problem. Evidence suggests this figure is increasing. The scientists behind the study, from the...

2011-11-15 09:43:41

University of Oregon biologist finds unwanted plants don't necessarily have it easy in absence of old enemies After hiking in Oregon, a University of Oregon plant biologist suggests, people may want to brush off their shoes and comb through their dogs in an effort to curb the spread of an invasive grass that is expanding its range. The grass is false brome (Brachypodium sylvaticum), a native of Europe and Asia, which likely landed in Oregon by way of USDA experimental plots in 1939 near...

2011-10-24 23:07:45

U.S. Department of Agriculture (USDA) scientists have identified a number of stem rust-resistant wheat varieties and are retesting them to verify their resistance. Stem rust occurs worldwide wherever wheat is grown. Over a large area, losses from stem rust can be severe, ranging from 50 to 70 percent, and individual fields can be destroyed. Agricultural Research Service (ARS) plant pathologist Mike Bonman at the agency's Small Grains and Potato Germplasm Research Unit in Aberdeen,...

2011-10-13 11:27:11

Traditional thought has held that disease had to penetrate a plant to initiate resistance; however, two Washington State University scientists have established that a barley plant recognizes an invader and begins to marshal its defenses within five minutes of an attack. The discovery, along with the scientists' successful cloning of disease-fighting genes and the pathogen signal recognized by the plant, could help to revolutionize the battle against cereal crop enemies, such as stem rust....

2011-06-14 13:19:00

ST. PAUL, Minn., June 14, 2011 /PRNewswire-USNewswire/ -- The U.S. Department of Agriculture (USDA) and the United States Agency for International Development (USAID) today broke ground on a state-of-the-art greenhouse that will play a key role in helping scientists combat a growing global disease threat to the world's wheat and barley supplies. The 2,880-square-foot greenhouse will be operated by scientists from the Agricultural Research Service (ARS), USDA's principal intramural...

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2011-06-11 06:40:00

A widespread wheat plague is threatening farms, raising bread prices and unleashing fresh political and economic unrest, according to experts. The disease strain has shown up in Africa, the Middle East and Asia, and has hiked food prices in the Arab world, Mexico, Haiti and beyond. "Stem rust, when it goes epidemic, destroys a crop," said Ronnie Coffman, a leading expert on wheat disease and chair of the department of plant breeding and genetics at Cornell University. "There is nothing left...

2011-06-10 12:27:43

Research published in PLoS Genetics today (9 June) provides insights into how an important fungal disease is able to evade wheat's defences. The researchers hope that the study, which reveals the fungus' complete genome sequence, will enable them to breed resistant crop plants or improve the use of pesticides. The genome sequence was produced by an international consortium of researchers including scientists at Rothamsted Research in the UK. The scientists, who were funded by the...

2011-05-09 21:33:46

An international team of researchers co-led by a U.S. Department of Agriculture (USDA) scientist has sequenced the genomes of two fungal pathogens-one that threatens global wheat supplies and another that limits production of a tree crop valued as a future source for biofuel. The sequencing of the genetic codes of wheat stem rust pathogen (Puccinia graminis) and poplar leaf rust pathogen (Melampsora larici-populina) is expected to help researchers develop control strategies to address...

2011-05-03 22:41:54

Fungi play significant ecological and economic roles. They can break down organic matter, cause devastating agricultural blights, enter into symbiotic relationships to protect and nourish plants, or offer a tasty repast. For industrial applications, fungi provide a source of enzymes to catalyze such processes as generating biofuels from plant biomass. One large fungal group with such enzymes are the rust plant pathogens which cannot survive on their own so they use crops as hosts, leading to...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.