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

<em>Curvularia lunata</em> on <em>Oryza sativa</em> — *Curvularia lunata* on *Oryza sativa*
*Image credits: Md. Azizul Hoque, Technical Manager, MNT Seed Testing Lab. (BDML0300), Lal Teer Seed Limited, Bangladesh*
perspective: top

Symptoms of Leaf spot / Curvularia lunata on Oryza sativa

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