Back to Search
Start Over
Studies in the Morphology and Life History of Anisogramma Anomala
- Source :
- Mycologia. 71:1107-1126
- Publication Year :
- 1979
- Publisher :
- Informa UK Limited, 1979.
-
Abstract
- SUMMARY A morphological and cytological study of the life history of Anisogranmmna anonmala which causes a cankering disease of commercial hazelnut, Corylus avellana, was undertaken. Mycelium colonizes the phloem forming a pressure cushion of pseudoparenchyma which eventually develops into a stroma. Perithecia form from primordia which are scattered throughout the hypostroma. The primordia consist of an "outer coil" of filamentous hyphal cells terminated by a nonfunctional trichogyne, surrounding an "inner coil" of more isodiametric ascogonial cells. The centrum arises from this inner coil as a loose clump of ascogenous cells which lack croziers. Asci arise from mononucleate cells of the ascogenous hyphae. The asci go through a typical meiosis followed by two successive mitotic divisions giving rise to eight unequally two-celled, hyaline ascospores. Spore dissemination occurs in response to hydration of both the ascocarp and individual asci. The pathology and histology of the host's response to infection are discussed.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Hypha
Anisogramma anomala
Physiology
fungi
Cell Biology
General Medicine
Biology
030108 mycology & parasitology
biology.organism_classification
010603 evolutionary biology
01 natural sciences
Spore
Ascocarp
03 medical and health sciences
Meiosis
Botany
Trichogyne
Genetics
Primordium
Molecular Biology
Mycelium
Ecology, Evolution, Behavior and Systematics
Subjects
Details
- ISSN :
- 15572536 and 00275514
- Volume :
- 71
- Database :
- OpenAIRE
- Journal :
- Mycologia
- Accession number :
- edsair.doi.dedup.....930b91fe547c38cd9aff6a6fd5186f53
- Full Text :
- https://doi.org/10.1080/00275514.1979.12021123