Pythium marsipium from pond water in Osaka

Phylogeny and Morphology of New Species of Globisporangium

“…Morphological characteristics of MAFF 236903 have been described in detail previously (Abdelzaher et al 1994). In this study, sexual structures such as oogonia, antheridia, and oospores were not formed in any artificial cultures, although sporangia and zoospores were abundantly produced in water culture (Fig.…”

“…Most of the description of G. lacustre sp. nov. is based on the initial observations by Abdelzaher et al (1994). Our result indicated that taxonomic re-evaluation of strains is sometimes needed even if the strain becomes sterile in culture.…”

“…1 van derPlaats-Niterink (1981) except for cardinal temperature for hyphal growth and daily growth at 25 °C on PCA obtained from this study.2Abdelzaher et al (1994) except for cardinal temperature for hyphal growth and daily growth at 25 °C on PCA obtained from this study.…”

“…Notes: In this study, MAFF 236903 and CBS 773.81 lost the ability to produce sexual structures, and both asexual and sexual structures in artificial conditions, respectively. Therefore, morphological comparisons are mainly conducted based on the description of 236903 by Abdelzaher et al (1994) and description of G. marsipium by van der Plaats-Niterink (1981).…”

“…One strain, MAFF 236903, stored in NARO Genebank, Microorganisms Section (MAFF), Genetic Resources Center, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan, was obtained from pond water in Osaka, Japan, in 1992. It was initially identified as P. marsipium, which is now classified as G. marsipium, based on its morphology (Abdelzaher et al 1994). We evaluated the identification of this strain using molecular phylogenetic analyses based on the ITS and cox1 regions.…”