Claim · model-written summary
Genomic analysis indicates that IAA biosynthesis in R74 involves the tryptophan side-chain oxidase pathway and the tryptophan-independent pathway.
- Taxon
- Alsophila spinulosa
Alsophila spinulosae0 - Material
- R74e2
- Outcome
- IAA biosynthesise2
- Qualifier
- tryptophan side-chain oxidase (TSO) pathway and the tryptophan-independent pathwaye2
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Alsophila spinulosa is a tree fern”
e2“Further genomic analysis showed that IAA biosynthesis in R74 involves the tryptophan side-chain oxidase (TSO) pathway and the tryptophan-independent pathway”
Title
Jiya Wu; Weicheng Yang; Xiaona Zhang; et al. Microorganisms 2026. doi:10.3390/microorganisms14051103
Other claims from this paper (14)
- Observation Thirty-nine IAA-producing strains were isolated from the rhizosphere of Alsophila spinulosa.
- Observation The highest IAA-producing strain, R74, was identified as Burkholderia pyrrocinia by morphological and molecular analyses.
- Observation The optimal inoculum age of strain R74 for IAA production was 12-20 h.
- Observation The optimal incubation time for IAA production was 24 h.
- Observation The optimal culture temperature for IAA production was 32 °C.
- Observation The optimal pH for IAA production was 7.0.
- Observation The genome of strain R74 is 8,347,169 bp in size.
- Observation The genome of strain R74 has a GC content of 67%.
- Observation The genome of strain R74 comprises 7543 genetic elements.
- Intervention effect Inoculation with R74 increased the height, root length and stem diameter of Alsophila spinulosa seedlings in pot experiments.
- Intervention effect Inoculation with R74 increased the biomass of Alsophila spinulosa seedlings in pot experiments.
- Intervention effect Inoculation with R74 increased antioxidant enzyme activities in Alsophila spinulosa seedlings.
- Intervention effect Inoculation with R74 elevated soluble protein and chlorophyll contents in Alsophila spinulosa seedlings.
- Intervention effect Inoculation with R74 reduced malondialdehyde levels in Alsophila spinulosa seedlings.