Latest Puccinia Stories
Based on a new study, the native guava tree in Brazil is not the source of the pathogen that causes eucalypt rust disease.
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.
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.
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.
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.
A widespread wheat plague is threatening farms, raising bread prices and unleashing fresh political and economic unrest, according to experts.
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.
Fungi play significant ecological and economic roles.
Researchers meeting at a scientific conference in Aleppo this week reported that aggressive new strains of wheat rust diseases â€“ called stem rust and stripe rust â€“ have decimated up to 40% of farmers' wheat fields in recent harvests.
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.
- Easily ashamed, having a strong sense of shame; modest; chaste.
- Of or pertaining to the external organs of generation.