The mechanism by which Helminthosporium maydis race T toxin inhibits respiration dependent on NAD+-linked substrates in T cytoplasm corn mitochondria. Abstract. Host-specific toxins produced by Helminthosporium maydis, race T, are measured quantitatively by a chemical assay procedure involving reaction of. Systematic position. Class Ascomycota, subclass Dothideomycetidae, order Pleosporales, family Pleomassariaceae, genus Helminthosporium.
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Using the assay it was possible to show that the highest amount of toxin per gram of fungus mycelium occurs early in the growth cycle of H.
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Catalogue of Life CoL. Protein measurement with the Folin phenol reagent. The corn planted in the s carried T-cms; T-cms was particularly susceptible to T-toxin.
The size is x 8. Click on the language titles to launch them. If you would like to know more about cookies and how they work, please visit www. The information is depersonalized and is displayed as numbers, meaning it cannot be traced back to individuals.
Since the use of cultivars with T male sterile cytoplasm has been forbidden in selection. Southern Corn Leaf Blight. Specimens and strains links: On ears the lesions are spindle-shaped, brown with dark border. Matches exactly Value is undefined. Contains Matches exactly Value is undefined. The lesions can coalesce, causing death of leaves. Host-specific toxins produced by Helminthosporium maydisrace T, are measured quantitatively by a chemical assay procedure involving reaction of the toxins with a sulfuric acidacetic anhydride reagent and measurement of the absorbance of the product at helmithosporium.
Lily Eurwilaichitr and Dr. A highly virulent strain called Race T appeared on maize hybrids with Texas male sterile cytoplasm. This plant disease article is a stub. Obligate or homotypic synonyms: In other projects Wikimedia Commons.
The assay was shown to measure total toxin concentrations after only limited fractionation of the culture medium.
Open the calendar popup. Pairwise sequence alignments Polyphasic identifications. You can help Wikipedia by expanding it. National Center for Biotechnology InformationU. In Russian Kiryuchina R. More attention to Southern Corn Leaf Blight.
It can cause southern corn leaf blight in maize. Associated Data Supplementary Materials. Articles with ‘species’ microformats Taxonbars with automatically added basionyms All stub articles. Karr3 and Gary A.
Infected seeds and corn residues are sources of the infection. Kukuruza i sorgo, 5: It is replaced each time there is a query done.
It is a facultative parasite. This article has been cited by other articles in PMC. See below for more information. Retrieved from ” https: