148
M. Dexilin et al.
Table 2 Identification of fungal isolates by macroscopic and microscopic appearance
Organisms
Macroscopic appearance
Microscopic appearance
Aspergilus flavus
White colonies become
greenish—blue as culture matures
Single-celled spores (Conidia) in
chains developing at the end of
the sterigma arising from the
terminal bulb of the conidiophore,
the vesicle; long conidiophores
arise from a septate mycelium
Fusarium oxysporum Wolly, white, fuzzy colonies
changing colour to pink
Multicelled spores (conidia) are
oval or crescent-shaped and
attached to conidiophores arising
from a septate mycelium
Aspergillus terreus
White colonies become
greenish—blue as cultures matures
Single-celled spores (Conidia) in
chains developing at the end of
the sterigma arising from the
terminal bulb of the conidiophore,
the vesicle; long conidiophores
arise from a septate mycelium
Rhizopus sp.
White colonies become
gray—yellowish brown as cultures
matures
Single-celled spores (Sporangia)
are globose to ovoid shaped and
nonseptate or sparsely septate
broad hyphae. They are rhiozoids
and unbranched usually
193 and AV90, respectively and it slowly increased and reached maximum of 96 and
97% within 10 days of incubation time as represented in Figs. 1 and 2.
Fig. 1 Effect of incubation
time on decolorization of AB
193 by Aspergillus flavus
M. Dexilin et al.
Table 2 Identification of fungal isolates by macroscopic and microscopic appearance
Organisms
Macroscopic appearance
Microscopic appearance
Aspergilus flavus
White colonies become
greenish—blue as culture matures
Single-celled spores (Conidia) in
chains developing at the end of
the sterigma arising from the
terminal bulb of the conidiophore,
the vesicle; long conidiophores
arise from a septate mycelium
Fusarium oxysporum Wolly, white, fuzzy colonies
changing colour to pink
Multicelled spores (conidia) are
oval or crescent-shaped and
attached to conidiophores arising
from a septate mycelium
Aspergillus terreus
White colonies become
greenish—blue as cultures matures
Single-celled spores (Conidia) in
chains developing at the end of
the sterigma arising from the
terminal bulb of the conidiophore,
the vesicle; long conidiophores
arise from a septate mycelium
Rhizopus sp.
White colonies become
gray—yellowish brown as cultures
matures
Single-celled spores (Sporangia)
are globose to ovoid shaped and
nonseptate or sparsely septate
broad hyphae. They are rhiozoids
and unbranched usually
193 and AV90, respectively and it slowly increased and reached maximum of 96 and
97% within 10 days of incubation time as represented in Figs. 1 and 2.
Fig. 1 Effect of incubation
time on decolorization of AB
193 by Aspergillus flavus