Erysiphe syringae
| Erysiphe syringae | |
|---|---|
 | |
| Image of chasmothecia and mycelial growth through the lens of a dissecting scope | |
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Leotiomycetes |
| Order: | Helotiales |
| Family: | Erysiphaceae |
| Genus: | Erysiphe |
| Species: | E. syringae |
| Binomial name | |
| Erysiphe syringae | |
| Synonyms[2][3] | |
| |
Erysiphe syringae is a fungal pathogen of lilacs (genus Syringa).
Importance
The host of the fungal pathogen, Syringa vulgaris or the common lilac, is an ancient plant with significance in horticultural activities and wild roots in eastern Europe.[4] Its Latin epithet, vulgaris, translates into ‘common’ in English, and was popularized by the pioneer taxonomist Carl von Linné.[5]
One of the first dutiful observations of the pathogen, E. syringae, was made in a journal of the German Botanical Society, Berichte der Deutschen Botanische Gesellschaft,[6] where it was observed as a powdery mildew pathogen unique to lilacs referencing the physical characteristics of its ascocarp appendages.[6]
The pathogen contributes to a deathly and diseased look. Common lilac is known for its spring flowers, which can be altered due to decay of flowering stems after intense infection.
Symptoms
Powdery mildew of lilac leaves an opaque-white discoloration on the leaves of S. vulgaris. This process is predominant at the end of the season but can begin to take place during new growth.[7] Eventually the fungal pathogen contributes to the damaging and early senescing of the infected leaves. The opaque-white discoloration is mycelial growth along the surface of the leaf. When the pathogen is sufficiently advanced, the presence of small dark dots indicates the production of cleistothecium (chasmothecium), an important structure in the protection of potential inoculum.[8]
References
- ↑ de Schweinitz, Lewis David (1832). "Synopsis of North American Fungi". Transactions of the American Philosophical Society (in Latin). 4 (2): 270.
- ↑ "Erysiphe syringae". Mycobank. Retrieved 29 December 2019.
- ↑ "Microsphaera syringae". Index Fungorum. Retrieved 29 December 2019.
- ↑ Alexander, John H. III (1990). "Lilacs of the Arnorld Arboretum". The Arnorld Arboretum of Harvard University. Archived from the original on 2019-10-01.
- ↑ Linné, Carl von (2007-03-08). Species Plantarum, Sections I-III (in Latin). Archived from the original on 2019-12-11. Retrieved 2019-12-11.
- 1 2 Deutsche Botanische Gesellschaft.; Gesellschaft, Deutsche Botanische (1898). Berichte der Deutschen Botanischen Gesellschaft. Vol. v. 16 (1898). Berlin: Gebrüder Borntræger. Archived from the original on 2019-12-11. Retrieved 2019-12-11.
- ↑ Weiss, Freeman.; Weiss, Freeman. Powdery mildew of ornamental plants /. Vol. 197. Washington, D.C.: U.S. Dept. of Agriculture. Archived from the original on 2019-12-11. Retrieved 2019-12-11.
- ↑ Agrios, George N. (2005). Plant pathology (5th ed.). Amsterdam: Elsevier Academic Press. pp. 470–480. ISBN 0-12-044565-4. OCLC 55488155.