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CHAPTER 2
CHAPTER 3
CHAPTER 4
CHAPTER 5
CHAPTER 6
CHAPTER 7
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CHAPTER 11
CHAPTER 12
CHAPTER 13
CHAPTER 14
CHAPTER 15
CHAPTER 16
CHAPTER 17
CHAPTER 18
CHAPTER 19
CHAPTER 20
CHAPTER 21

Fine structure in ascosporogenesis of freeze-substituted Arthroderma simii

Haruo Ito1, Hiroshi Hanyaku1, Takashi Harada1 and Soichi Tanaka2

1Department of Dermatology, Tokyo Women's Medical University Daini Hospital, Arakawa, Japan, and
2Department of Dermatology, Shiga University of Medical Science, Otsu, Japan.
We applied the freeze-substituion method to the detailed observation of the ascosporogenesis in Arthroderma simii. The ascospore formation of A. simii underwent the same processes as did that of other dermatophytes, namely an enveloping membrane system (EMS) composed of two invaginated unit membranes that delimit the daughter nuclei in the cytoplasm of the ascus. The inner leaflet of the EMS was found to have changed into an ascospore plasma membrane, whereas the outer leaflet and intercisternal space became the ascospore cell wall.
In the freeze-substituted asci, we could not observe the lomasomal structure thought to be the origin of the EMS in dermatophytes.
 
 

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In: Kushwaha RKS, Guarro J (Eds.). Biology of Dermatophytes and other Keratinophilic Fungi.
Revista Iberoamericana de Micología, Bilbao, 2000.
 
 

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