Arthuriomyces peckianus

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Arthuriomyces peckianus is a species of fungus in the family Pucciniaceae. It is a plant pathogen that primarily infects elm trees. The species was first described by Charles Horton Peck in 1882.

Description

Arthuriomyces peckianus is characterized by its production of rust spores, which appear as yellow to orange pustules on the leaves of infected elm trees. The spores are typically spread by wind and can infect new host plants, leading to the spread of the disease.

Life Cycle

The life cycle of Arthuriomyces peckianus involves several stages, including the production of urediniospores, teliospores, and basidiospores. The fungus overwinters in the form of teliospores, which germinate in the spring to produce basidiospores. These basidiospores infect new elm leaves, leading to the formation of urediniospores and the continuation of the infection cycle.

Host and Symptoms

The primary host for Arthuriomyces peckianus is the elm tree. Symptoms of infection include yellow to orange pustules on the leaves, premature leaf drop, and reduced tree vigor. Severe infections can lead to significant defoliation and weaken the tree, making it more susceptible to other diseases and environmental stresses.

Management

Management of Arthuriomyces peckianus involves cultural practices such as removing and destroying infected leaves to reduce the source of inoculum. Fungicidal treatments may also be used to protect trees from infection, especially in areas where the disease is prevalent.

Taxonomy

Arthuriomyces peckianus belongs to the kingdom Fungi, phylum Basidiomycota, class Pucciniomycetes, order Pucciniales, and family Pucciniaceae.

See Also

• Fungus
• Plant pathology
• Elm
• Rust (fungus)