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Phyllosticta sojaecola

From Wikipedia, the free encyclopedia

Phyllosticta sojaecola
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Dothideomycetes
Order: Botryosphaeriales
Family: Botryosphaeriaceae
Genus: Phyllosticta
Species:
P. sojaecola
Binomial name
Phyllosticta sojaecola
C. Massal., (1900)

Phyllosticta sojaecola is a plant pathogen infecting soybean.

Hosts and symptoms

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Causes Phyllosticta Leaf Spot on soybeans. Forms circular lesions with reddish-brown borders and light brown center. The center of the lesion will drop out over time. Visible pycnidia can be seen in older lesions.[1] A common consequence of infection is reduced yield from the damaged leaves.

Disease cycle

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Phyllosticta sojicola and all other members of the Phyllosticta genus are ascomycete fungi, with pathogenic species forming spots on leaves and some fruit.[2] 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] Within mature lesions, the fungus forms pycnidia to overwinter and repeat the cycle. Phyllosticta sojicola can also survive on seeds and infect new fields through infected seed.[4]

Environment and management

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Phyllosticta sojicola prefers cool, moist conditions, as pycnidia require moist conditions to germinate.[5] The pathogen can be managed by rotating to non-hosts and using tillage to remove infected residue.[6] As infected seed can transmit the pathogen, seed testing is recommended to prevent introduction of disease.[7]

See also

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References

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  1. ^ "Phyllosticta Leaf Spot of Soybean". Crop Protection Network. Retrieved 10 December 2020.
  2. ^ Wikee, S (September 30, 2013). "A phylogenetic re-evaluation of Phyllosticta (Botryosphaeriales)". Studies in Mycology. 76 (1): 1–29. doi:10.3114/sim0019. PMC 3825230. PMID 24302788.
  3. ^ "Phyllosticta capitalensis". Crop Knowledge Master. Retrieved 10 December 2020.
  4. ^ Yang, X (2002). "Phyllosticta leaf spot on soybean". Integrated Crop Management News. Retrieved 10 December 2020.
  5. ^ "Phyllosticta capitalensis". Crop Knowledge Master. Retrieved 10 December 2020.
  6. ^ "A Guide to Common Soybean Diseases in The Midwest". Kruger Seeds. Retrieved 10 December 2020.
  7. ^ Yang, X (2002). "Phyllosticta leaf spot on soybean". Integrated Crop Management News. Retrieved 10 December 2020.
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