Species/Subspecies: Magnaporthe oryzae
Category: Plant pathogen
Etymology: Genus name: .
Species epithet: rice.
Alternative Species Name(s):Magnaporthe grisea och Pyricularia oryzae, som är namnet på det anamorfa stadiet.
Common name: Saknas på svenska.
Significance:Very important in countries where rice is grown, i.e. in Africa, Asia, South America and Southern USA.The losses caused by the fungus to rice growers worldwide have been estimated at 30%.
  [Very important]   
Macromorphology (smell): Colonies, which sporulate on agar plates, usually have a fleecy and grayish appearance.
Micromorphology: The ascospores are transparent and coil-shaped with tapered ends and three septa.

The conidia are usually three-celled and are produced on top of a conidiophore.

Reproduction:M. oryzae har både sexuell och asexuell reproduktion. Den sexuella reproduktionen är heterotallisk.
Spec. Char.: At high humidity and a temperature between 25 and 28°C (77 and 82°F) the conditions are optimal for the development and spread of the disease.
Disease/effect:Rice blast
Hosts/substrate: Rice
Clinical Picture: First, white to gray-green damage or spots with darker edges appear on the shoots. Then the edges become necrotic, the lesions grow together and the leaf dies. The damage means that the plant produces fewer seeds.
Genome Sequence:
ACC-No GenBankStrain/Isolate# of chromSize (Mbp)
GCF_000002495 70-15 40.9 

18S rRNA Seq:
ACC-No GenBankStrain/IsolateNumber of NT
AB026819 Ina168 8412 
Sekvensen innehåller även generna för 5,8S och 26S rRNA.

ITS regions:
ACC-No GenBankStrain/IsolateNumber of NTGenes
GU073121 DH08037quan3 517 18S rRNA, ITS 1, 5.8S rRNA, ITS 2, 28S rRNA 

Reference(s): No. 24

Swedish University of Agricultural Sciences