Sarocladium oryzae
| Literature database |
|---|
| 18 articles sorted by: |
| • year (recent ones first) |
| • research topics |
| • countries/regions |
| • host plants |
| • list of antagonists |
Author(s): William M. Brown Jr.
Source: IPM Images
Author(s): Donald Groth, Louisiana State University AgCenter
Source: IPM Images
Sarocladium oryzae (Sawada) W. Gams & D. Hawksw. 1976 - (sheath rot of rice)
This fungus is found in many rice-growing countries and causes sheath rot of rice. However, rice sheath rot can also be caused by other pathogens like Fusarium verticillioides. Sarocladium oryzae damages mainly the leaf sheaths, preventing panicles to open and to develop properly, and resulting in fewer and shrivelled grains. Yield losses of 20-30%, sometimes more than 50%, have been estimated. The fungus has been also reported to cause bamboo blight.
S. oryzae persists in infected rice seeds, plant debris and soil. It enters the plant through small wounds. For management, the use of healthy seeds is recommended, as well as certain cultural methods like avoiding dense plantings and removing crop residues from the field (Bigirimana et al., 2015). Fungicides are usually not very effective.
S. oryzae forms white to orange-white, slow-growing colonies on PDA, which are orange underneath. It has simple and branched conidiophores and cylindrical phialides (up to 60 μm long). The conidia (4-7 x 1-2 µm) are cylindrical, hyaline, and arranged in slimy heads.
Synonyms:
Cephalosporium caerulens
For a taxonomic review see Giraldo et al. (2019).
