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Papers by Meredith Blackwell
Fems Yeast Res, 2004
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Mycologia, 1980
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Mycologia, 1980
... Mycologia 69: 1162-1172. Singer, R. 1975. The Agaricales in modern taxonomy, 3rd ed. Cramer, ... more ... Mycologia 69: 1162-1172. Singer, R. 1975. The Agaricales in modern taxonomy, 3rd ed. Cramer, Vaduz. 912 p. A NEW GENUS IN THE LOPHIACEAE ... Mycologia 69: 1162-1172. Singer, R. 1975. The Agaricales in modern taxonomy, 3rd ed. Cramer, Vaduz. 912 p. ...
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Mycologia, 1990
... AND Meredith Blackwell Department of Botany, Louisiana State University, Baton Rouge, Louisia... more ... AND Meredith Blackwell Department of Botany, Louisiana State University, Baton Rouge, Louisiana 70803 ... Key Words: Ear wigs, entomogenous fungi, Africa LITERATURE CITED Blackwell, M., JR Bridges, JC Moser, and TJ Perry. 1986a. Hyperphoretic dispersal ofa Pyx? ...
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Phytopathology, 2002
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Species of Termitaria are lesion-forming ectoparasites occurring worldwide on a diverse group of ... more Species of Termitaria are lesion-forming ectoparasites occurring worldwide on a diverse group of termites. The reduced thallus consists of a basal cell layer from which haustorial cells penetrate the termite and a darkly pigmented sporodochium. One species, Termitaria snyderi, has been the subject of several morphological studies, but its phylogenetic position has remained enigmatic. Here we provide evidence of a
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Mycologist, 1997
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Fems Yeast Research, Oct 1, 2004
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Mycologia, 1999
... Sung-Oui Suhl Meredith Blackwell Department of Biological Sciences, Louisiana State Universit... more ... Sung-Oui Suhl Meredith Blackwell Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana 70803 ... of Hypocreales, Sordariales, Ophiostomatales, and Mi-croascales have been recognized (Benny and Kim-brough 1980, de Hoog 1974, Malloch ...
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J Invertebr Pathol, 1991
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Molecular phylogenetic analyses indicate that the monophyletic classes Orbiliomycetes and Pezizom... more Molecular phylogenetic analyses indicate that the monophyletic classes Orbiliomycetes and Pezizomycetes are among the earliest diverging branches of Pezizomycotina, the largest subphylum of the Ascomycota. Although Orbiliomycetes is resolved as the most basal lineage in some analyses, molecular support for the node resolving the relationships between the two classes is low and topologies are unstable. We provide ultrastructural evidence to inform the placement of Orbiliomycetes by studying Orbilia auricolor, a representative species of the only order (Orbiliales) of the class. The truncate ascus apex in O. auricolor is thin-walled except at the margin, and an irregular wall rupture of the apex permits ascospore discharge. Ascus, ascogenous and non-ascogenous hyphae were simple septate, with septal pores plugged by unelaborated electrondense, non-membranous occlusions. Globose Woronin bodies were located on both sides of the septum. Nuclear division was characterized by the retention...
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Ascomycete Systematics, 1994
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Mycologia, 1993
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BioTechniques, 1992
A modification of the asymmetric PCR method is described, which reliably facilitates sequencing o... more A modification of the asymmetric PCR method is described, which reliably facilitates sequencing of PCR-amplified DNA. This procedure produces single-stranded DNA fragments as long as two kilobases that are suitable for dideoxy DNA sequencing. First, a PCR for double-stranded DNA is preformed under optimal conditions (double-stranded PCR). Then, a 5-10-microliters fraction of the double-stranded PCR and a single primer are used to generate single-stranded DNA in a separate PCR (single-stranded PCR). The concentration of the single primer are used to generate single-stranded DNA in a separate PCR (single-stranded PCR). The concentration of the single primer is approximately 0.4 microM. Usually 15 to 25 cycles of single-stranded PCR are optimal to produce single-stranded DNA for four to eight sequencing reactions. The single-stranded DNA is purified by centrifugal ultrafiltration and used directly in dideoxy sequencing. This method was employed to produce high-quality single-stranded D...
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Mycologia
Enteroramus dimorphus from the gut of the passalid beetle Odontotaenius disjunctus was described ... more Enteroramus dimorphus from the gut of the passalid beetle Odontotaenius disjunctus was described originally as a yeast-like fungus of unknown taxonomic affiliation. The fungus can be observed in situ, attached by a specialized cell to the beetle hindgut wall. In a recent study of yeast endosymbionts from a variety of beetles, we discovered that E. dimorphus is a member of the Pichia stipitis (Saccharomycetes) clade, known for xylose fermentation and assimilation. The closest relative of E. dimorphus is the PASS1 isolate, repeatedly acquired from passalid beetles in eastern North America from Pennsylvania to Louisiana. In addition to xylose fermentation and assimilation, these yeasts are characterized by the production of hat-shaped ascospores in culture, assimilation of a wide range of sugars, and synthesis of several vitamins. Enteroramus dimorphus, however, can be distinguished from close relatives by several physiological characteristics and rDNA sequences, which vary slightly fr...
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Fems Yeast Res, 2004
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Mycologia, 1980
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Mycologia, 1980
... Mycologia 69: 1162-1172. Singer, R. 1975. The Agaricales in modern taxonomy, 3rd ed. Cramer, ... more ... Mycologia 69: 1162-1172. Singer, R. 1975. The Agaricales in modern taxonomy, 3rd ed. Cramer, Vaduz. 912 p. A NEW GENUS IN THE LOPHIACEAE ... Mycologia 69: 1162-1172. Singer, R. 1975. The Agaricales in modern taxonomy, 3rd ed. Cramer, Vaduz. 912 p. ...
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Mycologia, 1990
... AND Meredith Blackwell Department of Botany, Louisiana State University, Baton Rouge, Louisia... more ... AND Meredith Blackwell Department of Botany, Louisiana State University, Baton Rouge, Louisiana 70803 ... Key Words: Ear wigs, entomogenous fungi, Africa LITERATURE CITED Blackwell, M., JR Bridges, JC Moser, and TJ Perry. 1986a. Hyperphoretic dispersal ofa Pyx? ...
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Bookmarks Related papers MentionsView impact
Phytopathology, 2002
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Species of Termitaria are lesion-forming ectoparasites occurring worldwide on a diverse group of ... more Species of Termitaria are lesion-forming ectoparasites occurring worldwide on a diverse group of termites. The reduced thallus consists of a basal cell layer from which haustorial cells penetrate the termite and a darkly pigmented sporodochium. One species, Termitaria snyderi, has been the subject of several morphological studies, but its phylogenetic position has remained enigmatic. Here we provide evidence of a
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Bookmarks Related papers MentionsView impact
Mycologist, 1997
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Bookmarks Related papers MentionsView impact
Fems Yeast Research, Oct 1, 2004
Bookmarks Related papers MentionsView impact
Mycologia, 1999
... Sung-Oui Suhl Meredith Blackwell Department of Biological Sciences, Louisiana State Universit... more ... Sung-Oui Suhl Meredith Blackwell Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana 70803 ... of Hypocreales, Sordariales, Ophiostomatales, and Mi-croascales have been recognized (Benny and Kim-brough 1980, de Hoog 1974, Malloch ...
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
J Invertebr Pathol, 1991
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Molecular phylogenetic analyses indicate that the monophyletic classes Orbiliomycetes and Pezizom... more Molecular phylogenetic analyses indicate that the monophyletic classes Orbiliomycetes and Pezizomycetes are among the earliest diverging branches of Pezizomycotina, the largest subphylum of the Ascomycota. Although Orbiliomycetes is resolved as the most basal lineage in some analyses, molecular support for the node resolving the relationships between the two classes is low and topologies are unstable. We provide ultrastructural evidence to inform the placement of Orbiliomycetes by studying Orbilia auricolor, a representative species of the only order (Orbiliales) of the class. The truncate ascus apex in O. auricolor is thin-walled except at the margin, and an irregular wall rupture of the apex permits ascospore discharge. Ascus, ascogenous and non-ascogenous hyphae were simple septate, with septal pores plugged by unelaborated electrondense, non-membranous occlusions. Globose Woronin bodies were located on both sides of the septum. Nuclear division was characterized by the retention...
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Ascomycete Systematics, 1994
Bookmarks Related papers MentionsView impact
Mycologia, 1993
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BioTechniques, 1992
A modification of the asymmetric PCR method is described, which reliably facilitates sequencing o... more A modification of the asymmetric PCR method is described, which reliably facilitates sequencing of PCR-amplified DNA. This procedure produces single-stranded DNA fragments as long as two kilobases that are suitable for dideoxy DNA sequencing. First, a PCR for double-stranded DNA is preformed under optimal conditions (double-stranded PCR). Then, a 5-10-microliters fraction of the double-stranded PCR and a single primer are used to generate single-stranded DNA in a separate PCR (single-stranded PCR). The concentration of the single primer are used to generate single-stranded DNA in a separate PCR (single-stranded PCR). The concentration of the single primer is approximately 0.4 microM. Usually 15 to 25 cycles of single-stranded PCR are optimal to produce single-stranded DNA for four to eight sequencing reactions. The single-stranded DNA is purified by centrifugal ultrafiltration and used directly in dideoxy sequencing. This method was employed to produce high-quality single-stranded D...
Bookmarks Related papers MentionsView impact
Mycologia
Enteroramus dimorphus from the gut of the passalid beetle Odontotaenius disjunctus was described ... more Enteroramus dimorphus from the gut of the passalid beetle Odontotaenius disjunctus was described originally as a yeast-like fungus of unknown taxonomic affiliation. The fungus can be observed in situ, attached by a specialized cell to the beetle hindgut wall. In a recent study of yeast endosymbionts from a variety of beetles, we discovered that E. dimorphus is a member of the Pichia stipitis (Saccharomycetes) clade, known for xylose fermentation and assimilation. The closest relative of E. dimorphus is the PASS1 isolate, repeatedly acquired from passalid beetles in eastern North America from Pennsylvania to Louisiana. In addition to xylose fermentation and assimilation, these yeasts are characterized by the production of hat-shaped ascospores in culture, assimilation of a wide range of sugars, and synthesis of several vitamins. Enteroramus dimorphus, however, can be distinguished from close relatives by several physiological characteristics and rDNA sequences, which vary slightly fr...
Bookmarks Related papers MentionsView impact