Comparison of Activities of the Host-Specific Toxin of Helminthosporium maydis, Race T, and a Synthetic C41 Analog
نویسندگان
چکیده
منابع مشابه
Cytoplasm-specific Effects of Helminthosporium maydis Race T Toxin on Survival of Corn Mesophyll Protoplasts.
High yields of mesophyll protoplasts were obtained from leaves of corn (Zea mays L., inbred W64A). Many protoplasts survived a week in the dark in a simple osmoticum. Culture filtrate from Helminthosporium maydis race T at dilutions of 1:10,000 to 1:20,000 destroyed protoplasts with Texas male-sterile (T) cytoplasm. Substantial damage to protoplasts with nonmale-sterile (N) cytoplasm occurred o...
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15 صفحه اولHelminthosporium maydis Race T Toxin Induces Leakage of NAD from T Cytoplasm Corn Mitochondria.
The mechanism by which Helminthosporium maydis race T toxin inhibits respiration dependent on NAD(+)-linked substrates in T cytoplasm corn mitochondria was investigated. The toxin did not cause leakage of the soluble matrix enzyme malate dehydrogenase from the mitochondria or inhibit malate dehydrogenase or isocitrate dehydrogenase directly. The toxin did increase the permeability of the inner ...
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چکیده ندارد.
Dissipation of the Membrane Potential in Susceptible Corn Mitochondria by the Toxin of Helminthosporium maydis, Race T, and Toxin Analogs.
We have tested directly the effect of Helminthosporium maydis T (Hmt) toxin and various analogs on the membrane potential formed in mitochondria isolated from a Texas (T) cytoplasmic male-sterile and a normal (N) corn. ATP, malate or succinate generated a membrane potential (negative inside) as monitored by the absorbance change of a cationic dye, safranine. The relative membrane potential (Del...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1983
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.73.2.440