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Spore formation and karyological characterization of basidiosporogenesis, meiosis, post-meiotic and nuclear migration mitosis in Coprinus comatus
Mycoscience ( IF 1.4 ) Pub Date : 2020-02-06 , DOI: 10.1016/j.myc.2020.02.001
Fu-Chia Chen , Norihiro Shimomura , Takeshi Yamaguchi , Tadanori Aimi

In Coprinus comatus, we sampled and observed different maturity stages of basidium to find the possible causes of binucleate basidiospores by microscopy using the HCI-Giemsa and DAPI staining methods. In basidium, following karyogamy, a single nucleolus was observed. We found evidence suggesting post-meiotic mitosis following nuclear migration in the spores. Post-meiotic mitosis occurred in the basidiospores, resulting in four binucleate basidiospores. This indicates that the basidiospore is a monokaryon, and that C. comatus shows the same pattern of basidiospore formation as Coprinopsis cinerea. This type of nuclear behavior was defined as pattern D, one of six distinct patterns (pattern A–F) of nuclear behavior during basidiosporogenesis have been described for basidiomycetes by Campos and Costa in 2010.



中文翻译:

鸡腿菇的孢子形成和孢子形成,减数分裂,减数分裂后和核迁移有丝分裂的核特征

鸡腿菇中,我们采样观察了不同成熟阶段的钡,通过使用HCI-Giemsa和DAPI染色的显微镜观察,发现了可能的双核子孢子孢子的病因。在核型后,在钡中观察到单个核仁。我们发现证据表明减数分裂后的有丝分裂后孢子核迁移。减数分裂后的有丝分裂发生在孢子孢子中,导致了四个双核的孢子孢子。这表明,担孢子是monokaryon,而且毛头鬼伞节目担孢子形成相同的图案Coprinopsis孢。这种类型的核行为被定义为模式D,Campos和Costa在2010年描述了在担子孢子虫形成过程中六个不同的核行为模式(A-F模式)之一。

更新日期:2020-02-06
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