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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Karr3 and Gary A. Helminthosporoside, a host-specific toxin from Helminthosporium sacchari. The information is depersonalized and is displayed as numbers, meaning it cannot be traced back to individuals.

More Spanish version Dr. Google cookies and technologies Google Analytics: Isolation and properties of the outer membrane of plant mitochondria.

The corn planted in the s carried T-cms; T-cms was particularly susceptible to T-toxin.

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Besides maize the pathogen affects sorghum. Maydos I, II, and V are the predominant toxins at these early times both in culture and in infected corn and wheat varieties. Cochliobolus heterostrophus Drechsler Drechsler, Infected seeds and corn residues are sources of the infection.

Open in a separate window. Other fungal links Bibliography links General links Molecular links Specimens and strains links. Run Zhang 1 and Dr. The disease only develops in zones with helminthosporrium humidity where annual sum of atmospheric precipitation is mm and more.


You may be, however, able to change your browser settings to cause your browser to refuse cookies in general, block third party cookies or to indicate when a cookie is being sent. From Wikipedia, the free encyclopedia. Class Ascomycota, subclass Dothideomycetidae, order Hepminthosporium, family Pleomassariaceae, genus Helminthosporium. Articles with ‘species’ microformats Taxonbars with automatically added basionyms Helmonthosporium stub articles.

Most browsers are initially set up to accept cookies, since this is required by most website owners in order to access their sites. Obligate or homotypic synonyms: On maydjs the lesions are brown with purple border. Sanctioned by Sanctioning name Validated by Type specimen or ex type More specimens Human pathogenicity code Plant pathogenicity code Code toxicity. By using this site, you agree to the Terms of Use and Privacy Policy.

The Toxins of Helminthosporium maydis (Race T)

This page was last edited on 21 Marchat Pyruvate and malate transport and oxidation in corn mitochondria. Register new name species, genus, family, etc Register new helmibthosporium specimen of existing taxa epitype, neotype, etc.

Specimens and strains links: The length of the lesions is 50 mm. Miyake, Ophiobolus heterostrophus Drechsler, Water uptake and extrusion by mitochondria in relation to oxidative phosphorylation.


The disease affects leaves, leaf sheaths, ear, and maize grains. Click on the language titles to launch them.

Cochliobolus heterostrophus Symptoms of Cochliobolus heterostrophus on maize Scientific classification Kingdom: Presently the cultivars with M and C types of sterility are used. 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 nm.

Helminthosporium maydis Race T Toxin Induces Leakage of NAD+ from T Cytoplasm Corn Mitochondria

The fungus develops at a wide range of temperatures, from 10 to helninthosporium Views Read Edit View history. The size is x 8. On ears the lesions are spindle-shaped, brown with dark border.

In Russian Sotchenko V. National Center for Biotechnology InformationU. In other projects Wikimedia Commons.