Abstract
This chapter studies the genus Saccharomycodes. In the determination of the asexual reproduction it is seen that cells are lemon-shaped (apiculate) and divide by bipolar budding on a broad base (bud-fission). Pseudohyphae are absent or poorly developed. In sexual reproduction it is found that the ascospores are spherical; a narrow subequatorial ledge and irregularly spaced surface nodules may be visible, especially with the electron microscope. Asci contain one to four ascospores. The chapter also discusses physiology/biochemistry and phylogenetic placement of the genus in which sugars are fermented, nitrate is not assimilated, the diazonium blue B reaction is negative, and coenzyme Q-6 is formed. The type species taken is Saccharomycodes ludwigii. Saccharomycodes is a sister genus of Hanseniaspora. Multigene phylogenetic analysis placed these two genera basal to the Saccharomycetaceae, and they are classified in the family Saccharomycodaceae. Saccharomycodes and Hanseniaspora are characterized by bipolar budding, but they are not closely related to Wickerhamia and Nadsonia, which also divide by bipolar budding.
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