Surface related host-pathogen interactions in Phytophthora

Hohl H.R., . (1990) Surface related host-pathogen interactions in Phytophthora. [Proceedings Paper]

Cell surface phenomena are important though poorly understood aspects of fungal pathogen - host plant interactions. Physical contact may lead to an interaction between surface molecules which results in adhesion and possibly recognition and induction of pathogenesis-related events. The present paper summarises the lines of evidence showing that 1 germ plasma tubes of Phytophthora do adhere to biological host wall plasma membrane and non-biological glass plastic surfaces by producing sticky material; 2 different molecules or parts of molecules may be involved in the adherence to different surfaces; 3 proteins and/or glycoproteins are likely to be involved in these processes; 4 lectin-ligand type interactions are potential candidates as both lectims and glycosydic ligands are present on fungal and host surfaces and sugars have been shown to interfere with pathogenesis; and 5 direct contact between fungal surface and host plasma membrane protoplast surface induces a reaction related to haustorial encasement as observed in the natural host-pathogen interaction. Monoclonal antibodies have been raised against host and parasite surface molecules in order to help indentify the molecules responsible for adhesion and induction of pathogenesis-related phenomena

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Abstract

Cell surface phenomena are important though poorly understood aspects of fungal pathogen - host plant interactions. Physical contact may lead to an interaction between surface molecules which results in adhesion and possibly recognition and induction of pathogenesis-related events. The present paper summarises the lines of evidence showing that 1 germ plasma tubes of Phytophthora do adhere to biological host wall plasma membrane and non-biological glass plastic surfaces by producing sticky material; 2 different molecules or parts of molecules may be involved in the adherence to different surfaces; 3 proteins and/or glycoproteins are likely to be involved in these processes; 4 lectin-ligand type interactions are potential candidates as both lectims and glycosydic ligands are present on fungal and host surfaces and sugars have been shown to interfere with pathogenesis; and 5 direct contact between fungal surface and host plasma membrane protoplast surface induces a reaction related to haustorial encasement as observed in the natural host-pathogen interaction. Monoclonal antibodies have been raised against host and parasite surface molecules in order to help indentify the molecules responsible for adhesion and induction of pathogenesis-related phenomena

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Item Type:	Proceedings Paper
Additional Information:	Summary only
AGROVOC Term:	PHYTOPHTHORA
AGROVOC Term:	PATOGENESIS/ HONGOS PATOGENOS
AGROVOC Term:	HUESPEDES
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/15299

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