Isolation of a sexual sporulation hormone from Aspergillus nidulans
نویسندگان
چکیده
منابع مشابه
Isolation and Characterization of Sexual Spore Pigments from Aspergillus nidulans.
The homothallic ascomycete Aspergillus nidulans produces two types of pigmented spores: conidia and ascospores. The synthesis and localization of the spore pigments is developmentally regulated and occurs in specialized cell types. On the basis of spectroscopic evidence, we propose that the major ascospore pigment of A. nidulans (ascoquinone A) is a novel dimeric hydroxylated anthraquinone. The...
متن کاملAsexual sporulation in Aspergillus nidulans.
The formation of mitotically derived spores, called conidia, is a common reproductive mode in filamentous fungi, particularly among the large fungal class Ascomycetes. Asexual sporulation strategies are nearly as varied as fungal species; however, the formation of conidiophores, specialized multicellular reproductive structures, by the filamentous fungus Aspergillus nidulans has emerged as the ...
متن کاملIsolation of nuclei from Aspergillus nidulans protoplasts.
Intact nuclei were isolated from the protoplasts of the filamentous fungus Aspergillus nidulans. The large amounts of protoplasts required for such nuclear preparations were produced from young mycelia grown in liquid culture. For final purification of the crude nuclear fraction, a Nycodenz density-gradient centrifugation was applied. The resulting nuclei were of good purity and morphological s...
متن کاملbasA regulates cell wall organization and asexual/sexual sporulation ratio in Aspergillus nidulans.
Sphingolipid C4 hydroxylase catalyzes the conversion of dihydrosphingosine to phytosphingosine. In Saccharomyces cerevisiae, Sur2 is essential for sphingolipid C4 hydroxylation activity but not essential for normal growth. Here we demonstrate that the Aspergillus nidulans Sur2 homolog BasA is also required for phytosphingosine biosynthesis but is also essential for viability. We previously repo...
متن کاملSexual origins of British Aspergillus nidulans isolates.
Aspergillus nidulans is a holomorphic fungus, capable of producing both meiotically and mitotically derived spores. Meiosis may be an evolutionary relic in this species because it is potentially capable of mitotic recombination and because most Aspergilli lack the ability to produce meiotic spores. We tested the null hypothesis that meiosis has been a major factor in the origin of strains of A....
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1989
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.171.7.3982-3988.1989