Phoma glomerata

Phoma glomerata is a species of fungus in the family Didymellaceae. It is a common plant pathogen, causing diseases in a variety of crop plants and ornamental plants.

Taxonomy

The species was first described in 1917 by mycologist Hans Wilhelm Wollenweber. The genus Phoma is large and diverse, with over 200 species. Phoma glomerata is classified in the section Phoma, which includes species that produce small, globose pycnidia.

Description

Phoma glomerata produces small, globose pycnidia that are filled with conidia. The conidia are hyaline, smooth, and elliptical in shape. The fungus is heterothallic, meaning that it requires two different mating types to reproduce sexually.

Pathogenicity

Phoma glomerata is a common plant pathogen, causing diseases in a variety of crop plants and ornamental plants. It is known to cause leaf spot and stem canker in soybean, pea, and lentil crops. The fungus can also cause root rot in sugar beet and potato crops.

Management

Management of Phoma glomerata involves a combination of cultural practices, chemical control, and resistant varieties. Cultural practices include crop rotation and sanitation to reduce the amount of inoculum in the soil. Chemical control involves the use of fungicides to protect susceptible plants. Resistant varieties are also available for some crops, such as soybean and pea.

See also

• List of Phoma species
• Plant pathology

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