Phragmodiaporthe

Phragmodiaporthe is a genus of fungi in the family Diaporthaceae. This genus is known for its role in various plant diseases, particularly those affecting tree species.

Taxonomy

The genus Phragmodiaporthe was first described by mycologist G. W. Martin in 1940. The type species is Phragmodiaporthe salicina, which was originally isolated from willow trees. The genus name is derived from the Greek words phragmo, meaning partition, and diaporthe, a reference to the related genus Diaporthe.

Description

Species in the genus Phragmodiaporthe are characterized by their ascospores, which are divided by a single, central septum. The ascocarps are typically perithecial, with a dark, almost black coloration.

Ecology and Pathogenicity

Phragmodiaporthe species are pathogenic, causing diseases in various plant hosts. They are known to infect a range of tree species, including willows, poplars, and oaks. The fungi enter the host plant through wounds or natural openings, and can cause significant damage, including cankers and dieback.

Species

There are several recognized species within the Phragmodiaporthe genus, including:

• Phragmodiaporthe salicina
• Phragmodiaporthe populi
• Phragmodiaporthe quercina

Research and Studies

Research into Phragmodiaporthe species has focused on their pathogenicity and potential for control. Studies have examined the fungi's life cycle, infection process, and the impact of environmental conditions on disease development.

See Also

• List of Diaporthaceae genera
• Plant pathology