Infection and Host Response in Powdery Mildew of Barley

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Title	Infection and Host Response in Powdery Mildew of Barley
Alternative Title	Infektion und Wirtsreaktion beim Gerstenmehltau
Author	Mendgen, Kurt Keller, Gerwin Kuhn, Christa
License	CC Attribution - NonCommercial - NoDerivatives 3.0 Germany: You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI	10.3203/IWF/C-1642eng
IWF Signature	C 1642
Publisher	IWF (Göttingen)
Release Date	1987
Language	English
Producer	IWF
Production Year	1985

IWF Technical Data

Film, 16 mm, LT, 131 m ; F, 12 min

Subject Area	Life Sciences
Abstract	The Ascomycete Blumeria graminis f. sp. hordei, a serious pathogen of barley, reproduces asexually by conidia. Infection - conidial germination and the formation of primary germ tube, secondary germ tube, appressorium and haustorium - and host response are documented in detail by time-lapse cinemicrography. The processes are shown in compatible and incompatible combinations of host and parasite. In incompatible combinations the defence response, effected by the ml-o resistance gene, is visible as an increased formation of papillae, and the hypersensitive reaction takes place as an effect of the ml-a resistance gene. The video is suitable for use in higher education.
Keywords	cell biology parasitism / powdery mildew host reaction / powdery mildew powdery mildew Blumeria graminis f.sp. hordei Erysiphe graminis Erysiphales powdery mildew barley mildew barley powdery mildew