Heat-induced Resistance of Sugarcane to Helminthosporium sacchari and Helminthosporoside
نویسندگان
چکیده
منابع مشابه
Isolation and characterization of host-selective toxin from Helminthosporium sacchari.
Helminthosporium sacchari infects certain clones of sugar cane and produces a toxin with the same plant selectivity as the fungus itself. The toxin was purified by use of activated charcoal plus thin layer, gel, and ion exchange chromatography. Gas chromatography (GC) of a trimethylsilyl derivative of toxin gave a single peak. Toxin was characterized by GC, mass spectroscopy (MS), and NMR spect...
متن کاملBiochemical basis of the resistance of sugarcane to eyespot disease.
Helminthosporoside is the host-specific toxin produced by Helminthosporium sacchari, the organism causing eyespot disease on sugarcane. Clones of sugarcane susceptible to the toxin posses a membrane protein that binds the toxin. Membranes of resistant clones do not bind the toxin. In this study, a binding protein from a susceptible clone was compared with its counterpart from a resistant clone....
متن کاملBiological Activity of the Isomeric Forms of Helminthosporium sacchari Toxin and of Homologs Produced in Culture.
The effect of Helminthosporium sacchari (HS) toxin isomers and related, pathogen-produced compounds on dark CO(2) fixation in HS-susceptible sugar cane leaf slices was investigated. HS toxin consists of a mixture of three isomeric bis-5-O-(beta-galactofuranosyl)-beta-galactofuranosides (A, B, and C) differing in the position of one double bond in the sesquiterpene aglycone. Maximum inhibition o...
متن کاملHost Plant Specialization in the Sugarcane Aphid Melanaphis sacchari
Most aphids are highly specialized on one or two related plant species and generalist species often include sympatric populations adapted to different host plants. Our aim was to test the hypothesis of the existence of host specialized lineages of the aphid Melanaphis sacchari in Reunion Island. To this end, we investigated the genetic diversity of the aphid and its association with host plants...
متن کاملSerinol as an activator of toxin production in attenuated cultures of Helminthosporium sacchari.
Successive transfer in synthetic medium of spores and mycelial fragments from original toxin-producing cultures of Helminthosporium sacchari results in attenuated cultures which do not produce the host-specific toxin helminthosporoside. When attenuated cultures are grown on material obtained from the water wash of sugarcane leaves susceptible to this fungus, the production of heminthosporoside ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Physiology
سال: 1975
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.56.3.415