Ultrastructural evidence for the identity of some multinucleate rhizoctonias
The ultrastructure of the pore cap in ten multinucleate rhizoctonias, endophytes of non-orchids and of Microtis (Orchidaceae), was compared with that in isolates of four Sebacina species. The pore cap in all the rhizoctonias was an imperforate, disc-like structure, Slightly smaller in diameter than...
| Veröffentlicht in: | The New phytologist. - 1979. - 112(1989), 4 vom: 12. Aug., Seite 513-518 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
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1989
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| Zugriff auf das übergeordnete Werk: | The New phytologist |
| Schlagworte: | Journal Article Sebacina Ultrastructure dolipore mycorrhiza rhizoctonia |
| Zusammenfassung: | The ultrastructure of the pore cap in ten multinucleate rhizoctonias, endophytes of non-orchids and of Microtis (Orchidaceae), was compared with that in isolates of four Sebacina species. The pore cap in all the rhizoctonias was an imperforate, disc-like structure, Slightly smaller in diameter than the flange forming the septal pore canal. The cap was formed by two Bat lamellae continuous with, but more electron-dense than, the membranes of the endoplasmic reticulum. The lamellae enclosed a lumen containing a deposit of electron-dense material. The pore cap in the rhizoctonias was indistinguishable from that in an isolate of Sebacina vermifera Oberwinkler. In contrast, the pore caps in isolates of S. calcea (Pers.: Fr.) Bres., S. umbrina Rogers and S. grisea (Pets.: Fr.) Bres., which were also imperforate and contained a band of electron dense material, were strongly dome-shaped and extended from one side of the flange to the other |
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| Beschreibung: | Date Revised 01.10.2020 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 1469-8137 |
| DOI: | 10.1111/j.1469-8137.1989.tb00345.x |