Microcycle Conidiation in Cercospora zeae-maydis
نویسندگان
چکیده
منابع مشابه
Microcycle Conidiation in Cercospora zeae-maydis.
ABSTRACT Conidia of Cercospora zeae-maydis are the primary inoculum causing gray leaf spot of maize. On nutrient-deficient substrates, but not on water on the leaf surface, conidia germinate and develop secondary conidia on conidiophores produced from germ tubes or conidial cells. A population of conidia increases its numbers more than twofold by 2 days on the surface of a water droplet and by ...
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Since polyamines (PAs) play a potential role in the regulation of growth and developmental processes in a wide variety of organisms, we have examined the influence of the PAs putrescine (Put) and spermidine (Spd) and the PA biosynthetic inhibitors alpha-difluoromethylornithine (DFMO), alpha-difluoromethylarginine (DFMA), methylglyoxal bis-(guanylhydrazone) (MGBG) and cyclohexylamine (CHA), sing...
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DNA photolyases harvest light energy to repair genomic lesions induced by UV irradiation, whereas cryptochromes, presumptive descendants of 6-4 DNA photolyases, have evolved in plants and animals as blue-light photoreceptors that function exclusively in signal transduction. Orthologs of 6-4 photolyases are predicted to exist in the genomes of some filamentous fungi, but their function is unknow...
متن کاملRegulation of Stomatal Tropism and Infection by Light in Cercospora zeae-maydis: Evidence for Coordinated Host/Pathogen Responses to Photoperiod?
Cercospora zeae-maydis causes gray leaf spot of maize, which has become one of the most widespread and destructive diseases of maize in the world. C. zeae-maydis infects leaves through stomata, which is predicated on the ability of the pathogen to perceive stomata and reorient growth accordingly. In this study, the discovery that light was required for C. zeae-maydis to perceive stomata and inf...
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...
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ژورنال
عنوان ژورنال: Phytopathology®
سال: 2003
ISSN: 0031-949X,1943-7684
DOI: 10.1094/phyto.2003.93.2.193