Claim · model-written summary
Additional point mutations at positions crucial for binding of heat-shock transcription factors caused a severe decrease in the nematode response.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- additional point mutations located at positions crucial for binding of heat-shock transcription factorse1
- Outcome
- nematode responsee1
- Direction
- severe decreasee1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco galls”
e1“additional point mutations located at positions crucial for binding of heat-shock transcription factors (HSFs) caused a severe decrease in the nematode response”
Title
Carolina Escobar; Marta Barcala; Mary Portillo; et al. Molecular Plant-Microbe Interactions 2003. doi:10.1094/mpmi.2003.16.12.1062
Other claims from this paper (8)
- Observation The Hahsp17.7G4 promoter directed GUS expression in tobacco galls induced by Meloidogyne incognita.
- Observation 10% of the galls stained for GUS expression 1 to 3 days after infection.
- Observation The fraction of galls stained for GUS increased to 60 to 80% 17 to 20 days after infection.
- Observation A DNA fragment from -83 to +163 containing HSE core sequences is sufficient for promoter activity largely restricted to giant cells within the galls.
- Intervention effect Two-point mutations in HSE cores did not reduce expression in giant cells.
- Mechanism HSEs are involved in the promoter activation in giant cells.
- Mechanism HSFs may mediate the promoter response in giant cells.
- Mechanism The authors suggest a distinct regulation of the promoter by nematodes.