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new pathotypes

Catalogue: GRDC Media
Grain producers have been urged to give stripe rust a greater priority when selecting triticale varieties following the discovery of a new strain of the airborne fungus... The varieties Jackie, Breakwell, Speedee, Abacus, Prime 322, Kosciuszko, Hillary and Madonna are all vulnerable to the new pathotype," Dr Wellings said. ".. The strain was first found on a sample of Jackie triticale at Bingara, near Moree in northern NSW. "It was the first rust sample I received for the season and it took a while for us to determine it was a new strain," he said...
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Catalogue: GRDC Media
Grain producers have been urged to give stripe rust a greater priority when selecting triticale varieties following the discovery of a new strain of the airborne fungus... The varieties Jackie, Breakwell, Speedee, Abacus, Prime 322, Kosciuszko, Hillary and Madonna are all vulnerable to the new pathotype," Dr Wellings said. ".. The strain was first found on a sample of Jackie triticale at Bingara, near Moree in northern NSW. "It was the first rust sample I received for the season and it took a while for us to determine it was a new strain," he said...
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Catalogue: Ground Cover
The Cereal Rust column in the last issue of Ground Cover discussed the concept of pathotypes in cereal rust pathogens... Pathotypes (also referred to as races or strains) are variants within rust pathogens that differ in their abilities to overcome resistance genes in cereal cultivars... The pathotype was commonly referred to as the "WA pathotype"...
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Catalogue: Ground Cover
Of the three rust diseases affecting wheat crops, leaf rust is often overlooked because it is thought to be less damaging than stem rust and stripe rust... The new pathotype found in WA last year has a DNA fingerprint identical to isolates of the '76 group' from eastern Australia, clearly showing it has spread from east to west in Australia... Some wheat varieties, such as King Rock , Fortune and Zippy , have additional leaf rust resistance that is expected to remain effective, meaning a lesser shift in their resistance ratings from moderately resistant (MR) to MS. LongReach Cobra , Mace and Carnamah varieties have shown varying responses to the new pathotype, so further tests are underway to more accurately determine how they might react...
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Catalogue: Ground Cover
Of the three rust diseases affecting wheat crops, leaf rust is often overlooked because it is thought to be less damaging than stem rust and stripe rust... The new pathotype found in WA last year has a DNA fingerprint identical to isolates of the '76 group' from eastern Australia, clearly showing it has spread from east to west in Australia... Some wheat varieties, such as King Rock , Fortune and Zippy , have additional leaf rust resistance that is expected to remain effective, meaning a lesser shift in their resistance ratings from moderately resistant (MR) to MS. LongReach Cobra , Mace and Carnamah varieties have shown varying responses to the new pathotype, so further tests are underway to more accurately determine how they might react...
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