Claim · model-written summary
Phylogenetic trees clustered the nematode with M. hapla.
- Taxon
- M. hapla
Meloidogyne haplae0 - Outcome
- clustered the nemaode with M. haplae0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Knoxia roxburghii”
e0“Phylogenetic trees (MEGA11, neighbor-joining method) clustered the nemaode with M. hapla”
Title
First Report of Root-Knot Disease Caused by Meloidogyne hapla on Knoxia roxburghii in Yunnan, China
Yinghao Xian; Weisi Ma; Yinzhi Yang; et al. Plant Disease 2026. doi:10.1094/pdis-10-25-2069-pdn
Other claims from this paper (13)
- Observation Root-knot disease was observed on K. roxburghii in Anning, Yunnan.
- Observation Infected K. roxburghii formed root knots on tap and fibrous roots, with possible necrosis in severe cases.
- Observation Mean tap-root knot weight was 33.71% of total root weight per plant.
- Observation Soil contained 24.25 ± 10.30 nematode juveniles per 100 g.
- Observation Morphology was consistent with Meloidogyne hapla.
- Observation D2/D3 and ITS sequences showed 99.78 - 100 % similarity to M. hapla sequences.
- Intervention effect Nematode inoculation produced galls after 90 days, while controls lacked symptoms.
- Observation Molecular reconfirmation identified M. hapla after inoculation.
- Observation Inoculated plants had a mean gall index of 1.84 ± 0.94.
- Observation Inoculated plants had 39.13 ± 17.27 eggs per gram of root.
- Observation Inoculated plants had 14.00 ± 5.62 egg masses per root.
- Observation The reproduction factor was 4.07 ± 1.64.
- Observation The authors report the first M. hapla infection of K. roxburghii in Yunnan, China.