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Full-Text Articles in Organisms
Sampling Local Fungal Diversity In An Undergraduate Laboratory Using Dna Barcoding, A. H. Harrington, A. F. Bigott, B. W. Anderson, M. J. Boone, S. M. Brick, J. F. Delsol, R. A. Hotchkiss, R. A. Huddleston, E. H. Kasper, J. J. Mcgrady, M. L. Mckinnie, M. V. Ottenlips, N. E. Skinner, K. C. Spatz, A. J. Steinberg, F. Van Den Broek, C. N. Wilson, A. M. Wofford, A. M. Willyard
Sampling Local Fungal Diversity In An Undergraduate Laboratory Using Dna Barcoding, A. H. Harrington, A. F. Bigott, B. W. Anderson, M. J. Boone, S. M. Brick, J. F. Delsol, R. A. Hotchkiss, R. A. Huddleston, E. H. Kasper, J. J. Mcgrady, M. L. Mckinnie, M. V. Ottenlips, N. E. Skinner, K. C. Spatz, A. J. Steinberg, F. Van Den Broek, C. N. Wilson, A. M. Wofford, A. M. Willyard
Journal of the Arkansas Academy of Science
Traditional methods for fungal species identification require diagnostic morphological characters and are often limited by the availability of fresh fruiting bodies and local identification resources. DNA barcoding offers an additional method of species identification and is rapidly developing as a critical tool in fungal taxonomy. As an exercise in an undergraduate biology course, we identified 9 specimens collected from the Hendrix College campus in Conway, Arkansas, USA to the genus or species level using morphology. We report that DNA barcoding targeting the internal transcribed spacer (ITS) region supported several of our taxonomic determinations and we were able to contribute 5 …
Characterization Of A PorosTm-Fumonisin B1 Affinity Column For Isolating Ceramide Synthase From Rat Liver, S. Jernigan, W. B. Melchior Jr., G. R. Jenkins, K. L. Rowland, D. W. Roberts, P. C. Howard, H. Tolleson
Characterization Of A PorosTm-Fumonisin B1 Affinity Column For Isolating Ceramide Synthase From Rat Liver, S. Jernigan, W. B. Melchior Jr., G. R. Jenkins, K. L. Rowland, D. W. Roberts, P. C. Howard, H. Tolleson
Journal of the Arkansas Academy of Science
Fumonisin B1 is a mycotoxin produced by fungi of the genus Fusarium, common pathogens of corn and other grain plants. Toxic effects associated with fumonisin B1 include equine leukoencephalomacia, porcine pulmonary edema, rat renal carcinoma, and murine hepatocellular carcinoma. Increased risk for esophageal cancer in humans has been epidemiologically associated with consumption of corn contaminated with Fusarium, suggesting that fumonisin B1 may be involved. The biological effects of fumonisin B1 exposure result primarily from disruption of de novo sphingolipid biosynthesis via inhibition of ceramide synthase. Exposure of animals or cultured cells to fumonisin B1 results in the characteristic accumulation of …
Laccase Production By Chaetomium Elatum, A Soft-Rot Fungus, Wilson H. Howe, Joyce M. Hardin
Laccase Production By Chaetomium Elatum, A Soft-Rot Fungus, Wilson H. Howe, Joyce M. Hardin
Journal of the Arkansas Academy of Science
Though enzymes responsible for rotting wood have been studied for some time, the enzymes and enzymatic systems responsible for breaking down lignin have only begun to be discovered. The lignin-degrading enzymes produced by soft-rot fungi, in particular, have not been sufficiently studied. The present study presents evidence that the enzyme called laccase, known to be associated with lignin biodegradation, is produced by the species Chaetomium elatum, a soft-rot fungus. Cerrena unicolor, a positive control, and Chaetomium elatum were grown in culture. These species were tested for the presence of laccase using syringaldazine as a chromogenic substrate. As expected, Cerrena unicolor …
Role Of Endophytes In Tall Fescue, E. L. Piper, C. P. West
Role Of Endophytes In Tall Fescue, E. L. Piper, C. P. West
Journal of the Arkansas Academy of Science
Tall fescue (Festuca arundinacea Schreb.) is the most commonly grown cool season grass used for pastures in Arkansas. Most tall fescue contains a fungal endophyte (Acremonium coenophialum Morgan-Jones & Gams), which causes fescue toxicosis in livestock and costs cattle producers millions of dollars annually in lost production. Endophyte presence is known to reduce wild mammal populations in areas where tall fescue is prevalent. The endophyte spends its entire life cycle within the plant and is transmitted through the seed. The association is mutualistic with the plant providing nutrients for the endophyte and the endophyte conferring drought, insect, and nematode resistance …
Evaluation Of Aposphaeria Amaranthi As A Bioherbicide For Pigweed (Amaranthus Spp.), A. S. Mintz, G. J. Weidmann
Evaluation Of Aposphaeria Amaranthi As A Bioherbicide For Pigweed (Amaranthus Spp.), A. S. Mintz, G. J. Weidmann
Journal of the Arkansas Academy of Science
Studies were conducted to determine the potential of the fungus, Aposphaeria amaranth!, as a bioherbicide for pigweeds (Amaranthus spp.). Experiments to establish the environmental parameters necessary for control of tumble pigweed (A. albus) demonstrated that an 8-hr dew period was sufficient for control of seedlings with four to six leaves, and that temperatures ranging from 20 to 28 C were conducive for disease development. Conidial concentrations as lowas 1x 10s conidia per ml also were sufficient for plant mortality. Host range tests demonstrated pathogenicity of A. amaranthi to several other species of Amaranthus, including biotypes resistant to triazine herbicides. Disease …
Development Of Pleurotus Ulmarius Fr. Grown In Pure Culture, Delbert Swartz, J. D. Collar
Development Of Pleurotus Ulmarius Fr. Grown In Pure Culture, Delbert Swartz, J. D. Collar
Journal of the Arkansas Academy of Science
No abstract provided.
Further Studies On An Antibiotic Substance Produced By Rhizopus Nigricans Ehrenberg, Kenneth D. Mace, Delbert Swartz
Further Studies On An Antibiotic Substance Produced By Rhizopus Nigricans Ehrenberg, Kenneth D. Mace, Delbert Swartz
Journal of the Arkansas Academy of Science
No abstract provided.
List Of The Smut Fungi Of Arkansas, George E. Templeton
List Of The Smut Fungi Of Arkansas, George E. Templeton
Journal of the Arkansas Academy of Science
No abstract provided.
Antibiotic Substance Produced By Rhizopus Nigricans Ehrenberg, Billy Joe Williams
Antibiotic Substance Produced By Rhizopus Nigricans Ehrenberg, Billy Joe Williams
Journal of the Arkansas Academy of Science
No abstract provided.
Problem Of Common Fungus Infections, Calvin J. Dillaha
Problem Of Common Fungus Infections, Calvin J. Dillaha
Journal of the Arkansas Academy of Science
No abstract provided.