Girish Mahajan (Editor)

Cephalosporium gramineum

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Covid-19
Kingdom  Fungi
Class  Ascomycetes
Order  Incertae sedis
Scientific name  Hymenula cerealis
Phylum  Ascomycota
Subclass  Incertae sedis
Family  Incertae sedis
Rank  Species
Cephalosporium gramineum smallgrainswsueduwpcontentuploads201401Cep
Similar  Acremonium, Acremonium strictum, Curvularia, Helminthosporium, Epicoccum

Cephalosporium gramineum or Hymenula cerealis is a plant pathogen that causes Cephalosporium Stripe of Wheat and other grasses. It was first reported in Japan in 1930. The disease can cause yield losses of up to 50% by causing death of tillers and reducing seed production and seed size. The disease causes broad yellow or brown stripes along the length of the leaf and discolouration of the leaf veins. The fungus spreads through the soil, and enters the plant through wounds in its roots. Early planting of winter wheat when the soil is warm gives a greater root system more subject to root breakage when the soil heaves affording more infection sites. Phosphate fertilizer and high moisture further exacerbates this condition. The symptoms are caused by the fungus invading the plants' vascular tissue. The fungus also produces a toxin which causes stunting of the plant and interferes with development. A glucopolysaccharide also appears to inhibit fluid movement in wheat.

Cephalosporium gramineum Cephalosporium stripe Cephalosporium gramineum on common wheat

There is very little natural resistance to the disease in wheat. Control measures include crop rotation for 2–3 years in areas where the disease has become a particular problem. Currently there are no options for controlling the disease through the use of fungicides.

Cephalosporium gramineum Cephalosporium gramineum
Cephalosporium gramineum Minden Pictures stock photos Cephalosporium leaf stripe
Cephalosporium gramineum Cephalosporium gramineum

References

Cephalosporium gramineum Wikipedia


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