Abstract
Ascospore and spore appendage ultrastructure in Pleospora gaudefroyi is described. Ascospore walls comprise a three-layered mesosporium within which electron-dense bodies (melanin?) are deposited in two layers (W2, W3), a tripartite episporium (W4), and an outer mucilaginous sheath (exosporium?). The electron-dense inclusions in the mesosporium are compared with those in the conidia of Alternaria brassicicola and ascospores of Carbosphaerella leptosphaerioides. In the unitunicate marine Ascomycetes, ascospores with a sheath are uncommon, whereas in the Loculoascomycetes many species have such ascospores. The sheath in P. gaudefroyi is compared with those of Paraliomyces lentiferus, Massarina thalassiae, and Massarina armatispora (all Loculoascomycetes). Key words: appendage ontogeny, marine Ascomycotina, taxonomy, ultrastructure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
