Production of conidia by Peronosclerospora sorghi on sorghum crops in Zimbabwe
نویسندگان
چکیده
منابع مشابه
Sugary disease or Asian ergot of sorghum - Claviceps sorghi
Claviceps sorghi is a pathogen of Sorghum bicolor found only in India and Southeast Asia. The more widespread C. africana is predominant even in India; C. sorghi appears to be marginalized in its restricted range. A significant difference in invasiveness is the relative production of inoculum that spreads plant-to-plant. Claviceps sorghi produces few to no secondary conidia from macroconidia on...
متن کاملCharacterization and genetic distance analysis of isolates of Peronosclerospora sorghi using AFLP fingerprinting.
Sorghum downy mildew, caused by the obligate oomycete Peronosclerospora sorghi, has been controlled through the use of resistant cultivars and seed treatment with metalaxyl. A recent outbreak in fields planted with treated seed revealed the presence of a metalaxyl-resistant variant. Here, PCR-based methods including amplification from RAPD primers and two systems of automated AFLP analysis have...
متن کاملCultural characteristics, morphology, and variation within Claviceps africana and C. sorghi from India.
Sorghum ergot in India is caused by Claviceps africana and C. sorghi. The distributions of these two species in India is not known. Eighty-nine sorghum ergot isolates were cultured from young sphacelia obtained from male sterile sorghum plants artificially inoculated using inoculum collected in the field. Based on cultural characteristics, the isolates were separated into two groups which diffe...
متن کاملThe production of conidiophores and conidia by newly germinated conidia of Aspergillus niger (microcycle conidiation).
The ability of Aspergillus niger conidia to produce conidiophores after germination in shaken culture at 30" was stimulated by the inclusion of glutamate in the medium. Incubation of the conidia at 35" to 41" increased swelling of the conidia and also the proportion which produced conidiophores. Although conidio phore initiation was stimulated at temperatures between 35" and 41 ", maturation wa...
متن کاملProduction of D-mannitol by conidia of Aspergillus candidus.
Conidia of Aspergillus candidus converted glucose and other sugars to mannitol. Low pH (ca. 3.0) apparently favored the percentage yield but decreased the fermentation rate.
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ژورنال
عنوان ژورنال: Plant Pathology
سال: 1998
ISSN: 0032-0862,1365-3059
DOI: 10.1046/j.1365-3059.1998.00235.x