Fine Structure of the Host-Parasite Interfaces in Mycoparasitism

Ultrastructure of the Host‐fungus Interface in a Vesicular‐arbuscular Mycorrhiza

“…Classification of types of haustorium has tended to follow fungal taxonomic groups (see, for example, Ehrlich and Ehrlich, 1971). However, we feel that haustorial form tends to reflect the nature of the association rather than taxonomic affinity.…”

“…Structurally, the arbuscule is a highly complex haus-torium, and it has several distinctive features. The haustorial neck, which is a narrow channel in many haustoria of basidiomycetes, ascomycetes (Ehrlich and Ehrlich, 1971) and phycornycetes (Chou, 1970) is in the Glomus arbuscule the width of the arbuscule trunk (Plate 2, No. 7).…”

“…We do not propose to enter into the main controversy; the viewpoints are given by Bracker (1967) and Ehrlich and Ehrlich (1971). Littlefield and Bracker (1972) give a concise list of equivalents.…”

Biological Control of Fusarium moniliforme in Maize

“…Symptomless endophytic infections were observed in several cultivar-isolate combinations. Intercellular hyphae were in direct contact with host cell walls (8); at the ultrastructural level, the walls were not separated by an extracellular granular matrix reported for other intercellular (or epibiotic) fungal pathogens and mutualists (36)(37)(38). Throughout the entire period of host colonization by the symptomless fungalmaize combination, there were no effects from the intercellular hyphae on the integrity of host cellular structure and organelles.…”

Ultrastructure of the dikaryotic stage of anise rust, Puccinia pimpinellae (F. Strauss) Link.

“…The characteristically wide encasement, frequently detected around necrotic haustoria may be a defense of the host cell to toxins produced after the death of haustoria as indicated by Ehrlich and Ehrlich (1971).…”