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Physiology of Fungal Haustoria

Physiology of Fungal Haustoria The position of the haustorium inside the host cell and the apparent needs of attached hyphae outside the cell suggested to De Bary and other early workers that the haustorium is primarily an organ of absorption. This con­ cept remains credible today, but it has gone untested in spite of intensive by electron microscopy and increasing knowledge of the ch anges that are induced in host p lants by haustorial fungi. Our under­ investigation of haustoria standing of absorption and other activities of the haustorium is generally poor because the small intracellular haustorium is difficult to study by con­ ventional physiological techniques. This paper presents selected topics related to the development and physio­ logical activities of the haustorium as they are understood today. The hausto­ ria of rust and powdery mildew fungi are emphasized, but other haustorial fungi are included, especially the lichen and mycorrhizal fungi which have been given little or no attention in earlier reviews of haustoria (44, 100, 101). Their inclusion provides a more complete concept of the haustorium than has been available heretofore, and serves to emphasize : (a) that many fungi other than obligate parasites produce haustoria; and (b) that some haustorial fungi http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Phytopathology Annual Reviews

Physiology of Fungal Haustoria

Bushnell, W R
Annual Review of Phytopathology , Volume 10 (1) – Sep 1, 1972
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Publisher
Annual Reviews
Copyright
Copyright 1972 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0066-4286
eISSN
1545-2107
DOI
10.1146/annurev.py.10.090172.001055
Publisher site
See Article on Publisher Site

Abstract

The position of the haustorium inside the host cell and the apparent needs of attached hyphae outside the cell suggested to De Bary and other early workers that the haustorium is primarily an organ of absorption. This con­ cept remains credible today, but it has gone untested in spite of intensive by electron microscopy and increasing knowledge of the ch anges that are induced in host p lants by haustorial fungi. Our under­ investigation of haustoria standing of absorption and other activities of the haustorium is generally poor because the small intracellular haustorium is difficult to study by con­ ventional physiological techniques. This paper presents selected topics related to the development and physio­ logical activities of the haustorium as they are understood today. The hausto­ ria of rust and powdery mildew fungi are emphasized, but other haustorial fungi are included, especially the lichen and mycorrhizal fungi which have been given little or no attention in earlier reviews of haustoria (44, 100, 101). Their inclusion provides a more complete concept of the haustorium than has been available heretofore, and serves to emphasize : (a) that many fungi other than obligate parasites produce haustoria; and (b) that some haustorial fungi

Journal

Annual Review of Phytopathology – Annual Reviews

Published: Sep 1, 1972

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