Rhynchosporium secalis

Rhynchosporium secalis
	Rhynchosporium secalis on winter barley
Systematics
Subdivision :	Real ascent mushrooms (Pezizomycotina)
Class :	Leotiomycetes
Order :	Helotials
Family :	Incertae sedis
Genre :	Rhynchosporium
Type :	Rhynchosporium secalis
Scientific name
	Rhynchosporium secalis
	( Oudem. ) Davis

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Reason: No information on morphology, lifestyle etc. - Ak ccm ( discussion ) 10:24, Feb. 16, 2014 (CET)

Rhynchosporium secalis is a species of the hose fungus (Ascomycota) from the class of the Helotiales . Rhynchosporium secalis causes Rhynchosporium leaf spot disease in barley , rye and triticale .

The disease manifests itself in spindle-shaped, blue-green, but quickly gray-white discolouring spots of up to 2 cm in size, which lead to yellowing and death of the entire leaf.

Way of life

The spores germinate after 24 hours of wetness. 1 hour after the start of the infection, the germ tube is formed, which thickens to form the appressorium . After penetrating the cuticle , the fungus grows along the cell sutures. Fungal hyphae are only found in the mesophyll of the leaf in the late stage of infection . About 10 days after the inoculation , the epidermal cells collapse, which shows up as a gray-white lesion (described above).

The spores are spread via raindrops. Because of this form of distribution, Rhynchosporium leaf spot disease is relatively localized and the infestation initially occurs in nests.

The greatest economic damage is caused by Rhynchosporium secalis in barley.

Individual evidence

↑ Rhynchosporium leaf spot disease ( Memento of the original from June 17, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. in the lexicon of cereal diseases @1@ 2

↑ Katherine J. Linsell, Felicity J. Keiper, Angus Forgan, Klaus H. Oldach: New insights into the infection process of Rhynchosporium secalis in barley using GFP . In: Fungal Genetics and Biology . tape 48 , no. 2 , February 2011, p. 124–131 , doi : 10.1016 / j.fgb.2010.10.001 .

↑ Rhynchosporium leaf spot disease (Rhynchosporium secalis) in DSV seeds

↑ Barley information center: Rhynchosporium leaf spot disease in proplanta

Web links

Commons : Rhynchosporium secalis - collection of images, videos and audio files

[agrar-1] Rhynchosporium leaf spot disease ( Memento of the original from June 17, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. in the lexicon of cereal diseases @1@ 2

[2] Katherine J. Linsell, Felicity J. Keiper, Angus Forgan, Klaus H. Oldach: New insights into the infection process of Rhynchosporium secalis in barley using GFP . In: Fungal Genetics and Biology . tape 48 , no. 2 , February 2011, p. 124–131 , doi : 10.1016 / j.fgb.2010.10.001 .

[saaten-3] Rhynchosporium leaf spot disease (Rhynchosporium secalis) in DSV seeds

[proplanta-4] Barley information center: Rhynchosporium leaf spot disease in proplanta