Medium- and light-dependence of growth and conidiomata production in phaeocytosporella zeae pathogenic to maize

• Published in: Journal of phytopathology Vol. 145; no. 8/9; pp. 321 - 328
• Main Authors: Levic, J, Petrovic, T
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01-09-1997; Blackwell
• Subjects: Biological and medical sciences; culture media; Fundamental and applied biological sciences. Psychology; Fungal plant pathogens; growth; growth rate; Growth, nutrition, metabolism, transports, enzymes. Molecular biology; internodes; light; Microbiology; mycelium; Mycology; Phaeocytostroma; photoperiod; Phytopathology. Animal pests. Plant and forest protection; plant pathogenic fungi; pycnidia; roots; symptoms; Systematics. Morphology. Development cycle. Physiology; Zea mays; Culture medium; Monocotyledones; Zea mays; Plant pathogen; Growth; Environmental factor; In vitro; Cereal crop; Fungi; Life cycle; Sporocarp; Gramineae; Light; Angiospermae; Nutrient; Spermatophyta; Fungi Imperfecti; Mycelium; Thallophyta
• ISSN: 0031-9481; 0931-1785; 1439-0434
• DOI: 10.1111/j.1439-0434.1997.tb00408.x

Culture appearance, mycelium growth and pycnidial conidiomata formation in Phaeocytosporella zeae cultivated on potato dextrose agar (PDA), Leonian agar and carnation leaf agar (CLA) during permanent dark (25 C) or a 12‐h photoperiod (24/18°C) are described. Different media and light conditions significantly affected fungus growth and the occurrence of conidiomata.
Dark conditions favoured more mycelium growth of the fungus than alternating light and dark. Moreover, fungus growth was more rapid on PDA and CLA media than on Leonian agar. Carnation leaf agar and a 12‐h photoperiod provided excellent conditions for the promotion of rapid conidiomata formation in a number of P. zeae isolates.