You are watching: Which of the following is a characteristic of the ascomycota
The thallus is mycelial and also regularly septate with a haploid nucleus every cell. The septum is perferated through a centeral perferation come nuclei deserve to migrate cell to cell. Yeasts room unicellular. The thallus has no flagellated cell and no basal bodies or centrioles. The cell wall surface is make of chitin and also was ONCE placed in the red line of evolution.
Specialized tree pathogens, yeasts, and also filamentous ascoma developing species-the many of which are lichens.
Most are saprobes, countless are tree pathogens, some are animal/human pathogens, and also a couple of are mycorrhizal.
It is a haploid life cycle, is homo or hetero thallic, has modified oogamy in dubbed gametangial contact- the sperm is no motile-, the mrs gametangium is called a ascogonium through a trichogyne (hair), the masculine gametangium is described as a antheridium. The asci are developed from ascogenous hyphae, which room dikaryotic. All of the asci space within a ascocarp (fruit body) or ascoma. Asexual reproduction occurs via conidiospores or conidia.
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Beginning through a young ascus, the ascus undergoes karyogamy-is dikaryotic- and also then self-fertilizes, meitotic division then wake up to form 4ascospores. The 4 ascospores climate undergo mitotic division to form 8 haploid ascospores in ~ the maturation ascus. These room then forcibly disharged and germinate. The germinating ascopores have the right to then give birth asexually of wanted and form a conidiophore. The conidiophore have the right to participate in sexual reproduction by arising both male and female gametangia. Once mature, the ascogonium then offers its trichogyne to attach to the antheridium and also initiate plasmogamy. As soon as plasmogany occurs, much more dikaryotic ascogenous hyphae develop. The then proceed to develope and also grow till they for an ascoma, wherein they are had within it.