Claim · model-written summary
Brown lesions developed into larger chlorotic spots as leaves aged.
- Taxon
- Cassava
Manihot esculentat0 - Organ / stage
- leavese0
- Outcome
- brown lesions, which later developed into larger chlorotic spotse0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early symptoms appeared as brown lesions, which later developed into larger chlorotic spots with aging of leaves.”
t0“Cassava”
Title
First Report of Epicoccum sorghinum Causing Leaf Spot on Cassava in China
Yu Wang; Chunxiao Lei; Luoguo Wuremo; et al. Plant Disease 2026. doi:10.1094/pdis-04-26-0803-pdn
Other claims from this paper (13)
- Observation Cassava SC9 showed leaf spot in Wenchang, Hainan in July 2025.
- Observation Approximately 10% of plants showed symptoms in the sampled planting.
- Observation Three isolates from diseased tissues showed cottony aerial mycelia and light pink concentric rings after 3 days.
- Observation Conidia were unicellular, hyaline and oval, measuring 5.8 to 12.5 × 1.6 to 3.7 μm.
- Observation Unicellular or multicellular chlamydospores were observed.
- Method / resource WC-02 sequences were deposited in GenBank for ITS, TUB and RPB2.
- Observation WC-02 ITS had 100% identity to Epicoccum sorghinum CN136A8.
- Observation WC-02 TUB had 100% identity to Epicoccum sorghinum WY01.
- Observation WC-02 RPB2 had 99% identity to Epicoccum sorghinum ws-30.
- Observation Phylogenetic analysis placed WC-02 in an Epicoccum sorghinum clade, supporting identification with morphological and molecular data.
- Intervention effect Inoculated cassava leaves developed field-like symptoms within 7 days while controls remained asymptomatic.
- Observation The fungus was reisolated from symptomatic cassava tissues, confirming pathogenicity by Koch's postulates in repeated consistent experiments.
- Observation This is the first report of Epicoccum sorghinum infecting cassava in China.