...As a result of sexual reproduction, ascus are formed and ascospores are produced inside. In addition to the sexual stage (perfect stage, perfect generation) in which ascus are formed through plasmolysis, karyolysis, and meiosis, many species form asexual conidia. Their life cycles are complex and pleomorphic. The simplest life cycle is that of the ascocyst yeasts (Saccharomyces, etc.), in which the ascus is independent, but in the Ascocysts, Saccharomyces, and Discomycetes, the ascus becomes complex. ... *Some of the terminology explanations that refer to the "perfect generation" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…有性生殖の結果,子囊を形成し,中に子囊胞子をつくる。原形質融合から核融合,減数分裂を経て子囊を形成する有性時代(完全時代,完全世代)のほか,多くの種で無性の分生子を形成する。生活史は複雑で多形的であり,体制の最も簡単なものは子囊菌酵母(サッカロミセスほか)で子囊は独立するが,不整子囊菌綱,核菌綱,盤菌綱では子囊果は複雑になる。… ※「完全世代」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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