Aspergillus flavus
Overview
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Scientific name
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Aspergillus flavus |
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Genus
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Aspergillus |
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EPPO code
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ASPEFL |
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Common name
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Storage rot |
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Synonyms
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Description
From ISTA's Common Laboratory Seed Health Testing Methods for Detecting Fungi:
The growth of the fungus on seed is characterized by immature, white heads and mature heads in shades ranging from yellowish cream to green. Conidiophores bearing the heads are clearly seen when the growth is light. They are long and hyaline terminating in bulbous heads.
Conidia globose to subglobose, usually rough (echinulate) yellowish-green, 3-5μm.
Images of Aspergillus flavus
Aspergillus flavus on Zea mays
Image credits: Nicole Calliou, CA
Light green colonies, with conidiophores terminating in bulbous heads ('pom poms on stalks').
sterilisation: 1% NaOCl 4 min | growth time: 5 days | temperature: 25+/-2C | lighting: 3:1 (fluorescent:nUV), within 60cm of light. Alternating light/dark in 12 hr intervals | plate size: 100mm | agar: PDA ( Neogen)
Aspergillus flavus on Zea mays
Image credits: Nicole Calliou, CA
Light green colonies, with conidiophores terminating in bulbous heads ('pom poms on stalks').
sterilisation: 1% NaOCl 4 min | growth time: 5 days | temperature: 25+/-2C | lighting: 3:1 (fluorescent:nUV), within 60cm of light. Alternating light/dark in 12 hr intervals | plate size: 100mm | agar: PDA ( Neogen)
Aspergillus flavus on Zea mays
Image credits: Nicole Calliou, CA
Light green colonies, with conidiophores terminating in bulbous heads ('pom poms on stalks').
sterilisation: 1% NaOCl 4 min | growth time: 5 days | temperature: 25+/-2C | lighting: 3:1 (fluorescent:nUV), within 60cm of light. Alternating light/dark in 12 hr intervals | plate size: 100mm | agar: PDA ( Neogen)
Aspergillus flavus on Zea mays
Image credits: Nicole Calliou, CA
Light green colonies, with conidiophores terminating in bulbous heads ('pom poms on stalks').
sterilisation: 1% NaOCl 4 min | growth time: 5 days | temperature: 25+/-2C | lighting: 3:1 (fluorescent:nUV), within 60cm of light. Alternating light/dark in 12 hr intervals | plate size: 100mm | agar: PDA ( Neogen)
Aspergillus flavus on Oryza sativa
Image credits: Md. Azizul Hoque, Technical Manager, MNT Seed Testing Lab. (BDML0300), BD
sterilisation: 1% NaOCl for 10 minutes | growth time: 7 days | temperature: at 22±2°C | lighting: alternating nuv 12 h darkness & 12 h light. | plate size: 110mm | agar: Blotter Method ( ) |
DNA testing: NA
Aspergillus flavus on Oryza sativa
Image credits: Md. Azizul Hoque, Technical Manager, MNT Seed Testing Lab. (BDML0300), BD
sterilisation: 1% NaOCl for 10 minutes | growth time: 7 days | temperature: at 22±2°C | lighting: alternating nuv 12 h darkness & 12 h light. | plate size: 110mm | agar: Blotter Method ( ) |
DNA testing: NA
Aspergillus flavus on Oryza sativa
Image credits: Md. Azizul Hoque, Technical Manager, MNT Seed Testing Lab. (BDML0300), BD
sterilisation: 1% NaOCl for 10 minutes | growth time: 7 days | temperature: at 22±2°C | lighting: alternating nuv 12 h darkness & 12 h light. | plate size: 110mm | agar: Blotter Method ( ) |
DNA testing: NA
Aspergillus flavus on Oryza sativa
Image credits: Md. Azizul Hoque, Technical Manager, MNT Seed Testing Lab. (BDML0300), BD
sterilisation: 1% NaOCl for 10 minutes | growth time: 7 days | temperature: at 22±2°C | lighting: alternating nuv 12 h darkness & 12 h light. | plate size: 110mm | agar: Blotter Method ( ) |
DNA testing: NA
Aspergillus flavus on Oryza sativa
Image credits: Md. Azizul Hoque, Technical Manager, MNT Seed Testing Lab. (BDML0300), BD
sterilisation: 1% NaOCl for 10 minutes | growth time: 7 days | temperature: at 22±2°C | lighting: alternating nuv 12 h darkness & 12 h light. | plate size: 110mm | agar: Blotter Method ( ) |
DNA testing: NA