Septoria tritici

Taxobox | name = Septoria leaf blotch

---

regnum = Fungi
divisio = Ascomycota
familia = Mycosphaerellaceae
genus = "Septoria"
species = "S. tritici"
binomial = "Septoria tritici"
binomial_authority = Roberge

"Septoria tritici" is the causal agent of "S. tritici" leaf blotch, a foliar disease of wheat, and occasionally infects other grasses including barley. It is found in all wheat growing areas of the worldcite book
title=European handbook of Plant Diseases
publisher = Blackwell Scientific Publications
date=1988] and is the major disease of wheat in the UK.cite web
url=http://websrv1/about_pesticides.asp?id=861
title=UK pest disease and weed incidence reports 1998-2005
author=ADAS]

The teleomorph is "Mycosphaerella graminicola" (Fuckel) Schröter

Morphology

Asexual state: Pycnidiospores are hyaline and threadlike and measure 1.7-3.4 x 39-86 μm, with 3 to 7 indistinct septations. Germiniation of pycnidiospores can be lateral or terminal. Cirrhi are milky white to buff. Sometimes in culture nonseptate, hyaline microspores, measuring 1-1.3 x 5-9 μm, occur outside pycnidia by yeastlike budding.cite book
last = Wiese
first = M.V.
title = Compendium of wheat diseases
publisher = American Phytopathological Society
date = 1987
pages = 124 ]

Sexual state: Perithecia are subepidermal, globose, dark brown, and 68-114 μm in diameter. Asci measure 11-14 x 30-40 μm. Ascospores are hyaline, elliptical, and 2.5-4 x 9-16 μm, with two cells of unequal length.cite book
last = Wiese
first = M.V.
title = Compendium of wheat diseases
publisher = American Phytopathological Society
date = 1987
pages = 124 ]

Epidemiology

The period between infection and formation of sporulating structures (latent period) was estimated to be 20.35 ± 4.15 days for "S. tritici" and decreased with increasing temperature. [Henze M, Beyer M, Klink H, Verreet J-A (2007): Characterizing meteorological scenarios favorable for "Septoria tritici" infections in wheat and estimation of latent periods. Plant Disease 91: 1445-1449. [http://apsjournals.apsnet.org/doi/abs/10.1094/PDIS-91-11-1445?journalCode=pdis] ]

ources

*cite book
last = van Ginkel
first = M.
coauthors = A. McNab, J. Krupinsky
title = Septoria and stagonospora diseases of cereals: A compilation of global research
publisher = CIMMYT
date = 1999
pages = 186pp
url = http://www.cimmyt.org/Research/Wheat/pdf/Septoria/septoria.pdf

References

External References

* [http://www.oznet.ksu.edu/library/plant2/EP133.pdf Septoria Tritici Blotch, Kansas State University]