Asci
Asci
Asci (pronounced: /ˈæskaɪ/), is a term used in Mycology, the study of fungi. The word originates from the Greek word 'askos', meaning sac or bag.
Asci are the spore-bearing cells found in the fruiting bodies, or ascocarps, of ascomycete fungi. Each ascus typically contains eight ascospores, although the number can vary depending on the species.
Structure and Function
The structure of asci is typically cylindrical or sac-like, and they are formed within the ascocarp. The ascospores within are produced through a process of meiosis followed by mitosis. This process ensures genetic variation, a key factor in the survival and adaptability of fungi.
Types of Asci
There are several types of asci, including unitunicate-operculate, unitunicate-inoperculate, and bitunicate. The classification is based on the structure and dehiscence, or splitting open, of the asci.
Role in Identification
The structure and arrangement of asci and ascospores are often used in the identification of ascomycete fungi. This is because these features are relatively consistent within species and can be observed under a microscope.
See Also
References
External Links
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