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Phakopsora pachyrhizi is an obligate biotrophic pathogen that causes Asian soybean rust. Phakopsora pachyrhizi is able to affect up to 31 different plant species that belong to 17 different genera under natural conditions. Experiments in laboratories were able to use P. pachyrhizi to infect 60 more plant species.
Soybean rust is a disease that affects soybeans and other legumes. It is caused by two types of fungi, Phakopsora pachyrhizi, commonly known as Asian soybean rust, and Phakopsora meibomiae, commonly known as New World soybean rust. P. meibomiae is the weaker pathogen of the two and generally does not cause widespread problems.
Soybean plants (Glycine max) are subject to a variety of diseases and pests. ... Common Names of Diseases, The American Phytopathological Society This page was ...
Symptoms appear as dark red to black lesions on the lower surface of the leaves. They appear as sunken lesions surrounded by a raised brown-black border on the pods, petioles and stems. Very small black fruiting bodies of the fungus are usually visible in older lesions. [3] Other symptoms include shedding of leaves, flower and pod abortion. [3]
Peronospora manshurica is biotrophic, meaning that a living host (most commonly the soybean) is required in order for the fungus to survive. [7] In order to initiate infection of its host, the pathogenic conidial spores are dispersed by wind, rain-splash, and run-off.
Asian bush honeysuckle can choke out native plants and destroy natural food sources for birds and wildlife. Asian bush honeysuckle is one of Indiana's most common invasive plants Skip to main content
Cercospora kikuchii is a fungal plant pathogen that affects soybeans. [1] It results in both the Cercospora leaf blight and purple seed stain diseases on soybean and is found almost worldwide. C. kikuchii produces the toxin cercosporin, as do a number of other Cercospora species.
Phyllosticta sojicola emerges from infected plant debris in spring and spread by wind and rain-splash onto healthy plants. While the infection method for Phyllosticta sojicola are unknown, other Phyllosticta species are known to infect leaves via an appressorium in a process that requires adequate moisture. [ 3 ]