lesions on the underside of the leaf. They enlarge to angular spots, often limited by the small veins. The distinctive feature is the way the lesions…
sporidia infect the wheat seedlings even before emergence and the fungi grow inside the plants to the growing tip. The fungi grow between the plant…
base and the roots, whereas the ascospores infect the above-ground plant parts. In greenhouses, usually only mycelium is produced by the germinating…
a few of the roots but in severe cases all roots may be infected. At the final stage of the disease, only vascular tissue remains because the cortex…
available. They infect the plant by direct penetration of the cuticula and then grow between the cuticula and the epidermis of the plant cells. This…
that it excretes compounds that kill the plant cells and then uses the content of the plant cells as nutrients. On the infected area, new spores are…
during the cropping season. The fungus is seed-borne and this systemic infection is the only source of primary infection. The fungus spreads from the…
from the root to the foot, but direct infection of the foot also occurs. Exudates leaking from growing root tips promote germination and attract the…
conidia on the oldest leaves, but seed transmission is also possible. The germ tubes can infect the leaves of the plants directly or through stomata. …
s roots on the stem. The vascular stem tissue is coloured brown and when the stem is cut, bacterial slime oozes from the wound. This is the way to…
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