AgriMyc

Phylum	Class	Order	Family	Genus	Species/Subspecies

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]

Taxonomy:

Phylum	Class	Order	Family	Genus
Ascomycota	Sordariomycetes	Magnaporthales	Magnaporthaceae	Magnaporthe

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 GenBank	Strain/Isolate	# of chrom	Size (Mbp)
GCF_000002495	70-15	7	40.9

18S rRNA Seq:

ACC-No GenBank	Strain/Isolate	Number of NT
AB026819	Ina168	8412

Sekvensen innehåller även generna för 5,8S och 26S rRNA.

ITS regions:

ACC-No GenBank	Strain/Isolate	Number of NT	Genes
GU073121	DH08037quan3	517	18S rRNA, ITS 1, 5.8S rRNA, ITS 2, 28S rRNA

Taxonomy/phylogeny:

Reference(s):

No. 24

Updated:

2022-06-22