Fusarium pseudograminearum

Fusarium pseudograminearum is a fungal species belonging to the genus Fusarium, which is known for its pathogenic characteristics. This species is particularly significant due to its role as a causal agent of crown rot in wheat and barley, two major cereal crops worldwide.

Taxonomy

The species was first described in 2001, following a re-evaluation of the Fusarium graminearum species complex. It was found to be a distinct species based on differences in morphology, pathogenicity, and DNA sequence data.

Distribution and habitat

Fusarium pseudograminearum is widely distributed in cereal-growing regions around the world, including Australia, North America, and Europe. It is commonly found in soil and on plant debris, where it can survive for several years as chlamydospores or mycelium.

Pathogenicity

Fusarium pseudograminearum is a major pathogen of wheat and barley, causing crown rot disease. The fungus infects the base of the plant, leading to necrosis and often resulting in significant yield losses. In addition to crown rot, the fungus can also cause Fusarium head blight, a serious disease of cereals.

Management

Management of Fusarium pseudograminearum involves a combination of cultural practices, such as crop rotation and residue management, and the use of resistant varieties. Fungicides can also be used, but their effectiveness is often limited due to the fungus's ability to survive in the soil for long periods.

See also

• Fusarium graminearum
• Fusarium head blight
• Crown rot