Electronic Resource
Springer
Protoplasma
105 (1981), S. 307-320
ISSN:
1615-6102
Keywords:
Blastocladiales
;
Catenaria allomycis
;
Meiosis
;
Synaptonemal complex
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Catenaria allomycis Couch (Blastocladiales) is an endobiotic fungal parasite primarily of species of the genusAllomyces. The life cycle ofC. allomycis contains both sexual and asexual phases. Synaptonemal complexes have been found in young developing resistant sporangia (RS) suggesting that meiosis occurs within the thick walled RS prior to syngamy. Ultrastructural evidence suggests that meiosis proceeds through pachytene in the developing RS and is arrested in diplotene of prophase I until the sporangia are induced to germinate at which time the meiotic process is completed. Quantitative nuclear counts in developing RS support the ultrastructural observations. Meiotic nuclei are characterized by polar fenestrae in the nuclear envelope and intranuclear plaque-like microtubule organizing centers (MTOC).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01279227
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