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Submission

Curvularia lunata on Oryza sativa

  • Credits / Owner: Md. Azizul Hoque, Technical Manager, MNT Seed Testing Lab. (BDML0300), Lal Teer Seed Limited, Bangladesh
  • Submission date: 2026-01-21 08:28:50
  • Submission ID: #188

Pathogen

Scientific name

Curvularia lunata

Genus

Curvularia

EPPO code

COCHLU

Common name

Leaf spot

Synonyms

Acrothecium lunatum

Crop

Oryza sativa

More about Curvularia lunata

Submission

Description

Based on the morphology, this image shows a classic example of fungal spores, most likely from the genus Curvularia. These spores, known as conidia, are characterized by several distinct features: Multicellular Structure: They typically have 3 to 5 cells separated by horizontal walls (septa). Curved Shape: A defining trait of Curvularia is the slight curve or "boomerang" shape, caused by an enlarged, darker central cell that outgrows the others. Pigmentation: They exhibit a brown or "dematiaceous" color, which is a natural melanin-like pigment.


Growth time: 7 days
Lighting: alternating 12 h darkness & 12 h light.
Agar: Blotter Method
Sample origin: Bangladesh