Claim · model-written summary
This is reported as the first report of C. lunata being pathogenic on cassava.
- Taxon
- cassava
Manihot esculentae0 - Interactor
- C. lunata
Curvularia lunatae0pathogen - Outcome
- first report of C. lunata pathogenice0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This is the first report of C. lunata pathogenic on cassava”
Title
First Report of Curvularia lunata Associated with Stem Disease of Cassava
W. Msikita; J. S. Yaninek; M. Ahounou; et al. Plant Disease 1997. doi:10.1094/pdis.1997.81.1.112a
Other claims from this paper (10)
- Observation In surveys of cassava fields in south Ghana and southeast Nigeria, stems of some cassava genotypes were covered by grayish brown lesions, mainly on lignified stem portions.
- Observation Field disease incidence in the surveyed cassava fields ranged from 0 to 80%.
- Observation Disease severity in the surveyed cassava fields ranged from no disease to highly affected stems with more than 15 lesions per stem.
- Observation The pathogen isolated from infected cassava stems was identified as Curvularia lunata, confirmed by the International Mycological Institute.
- Intervention effect Wound- or nodal-inoculation of stem pieces of four cassava cultivars with C. lunata mycelial plugs produced lesions and bud necrosis similar to field symptoms on all inoculated plants within 1 month, while control plants stayed symptom-free.
- Intervention effect Symptom development after inoculation was quicker (2 to 3 weeks) on wound-inoculated cassava stems than on nonwounded stems.
- Observation Mortality of artificially wound-inoculated cassava buds ranged between 30 and 100%, depending on genotype and manner of inoculation.
- Observation Artificially infected cassava stem and bud portions plated on PDA consistently yielded C. lunata.
- Association When cassava buds were completely colonized, sprouting was completely inhibited.
- Association Partially colonized cassava buds sprouted, but growth was reduced by 20 to 50% (depending on genotype) compared with healthy stems.