What benefits of Ochrobactrum pseudogrignonense have been cited in the scientific literature?
Ochrobactrum pseudogrignonense (synonym: Brucella pseudogrignonensis) has five categories of agronomic benefits cited in peer-reviewed research. Reported to outperform competing strains in rock phosphate solubilization assays, it improves at least six physiological traits of millet and raises soil phosphorus content when applied as a bioinoculant with commercial rock phosphate. Genomic analysis links its phosphate-mobilizing activity to genes for phosphate uptake, organic acid synthesis, and phosphorus metabolism.
As a biocontrol candidate, Ochrobactrum pseudogrignonense is reported to strongly inhibit root-knot nematode (Meloidogyne incognita) juveniles via volatile organic compounds — specifically dimethyl disulfide and benzaldehyde — with greenhouse trials recording root-gall suppression efficiencies of 88–100% versus untreated controls. Separate in vitro and in vivo studies cite inhibition of mycelial growth and zoospore production across four Phytophthora species (P. capsici, P. infestans, P. parasitica var. nicotiana, and P. sojae), with reported biocontrol efficiencies of roughly 46–100% in pepper, potato, tomato, and soybean bioassays.
Peer-reviewed studies also report that this bacterium alleviates chromium and salt (NaCl) stress in rice, reducing oxidative stress markers, enhancing antioxidant enzyme activity, and restricting Na⁺ and Cr⁶⁺ uptake under single- and dual-stress conditions. None of these findings constitute approved label claims or regulatory endorsements.
1AAPFCO-accepted claims
Listing details- Nitrogen fixing
- Increases plant growth. Increased growth of oil palm, peas, black gram seedlings.
Accepted wording, shown verbatim · source: AAPFCO Plant Biostimulant list
2Potential claims from the literature
Reported to improve at least six physiological traits of millet and phosphorus content in soil when used as a bioinoculant in soil fertilized with commercial rock phosphate, outperforming other tested strains in rock phosphate solubilization assays
Reported to promote growth of millet plants cultivated in soil amended with rock phosphate, with genomic analysis revealing the presence of genes related to phosphate uptake and metabolism and organic acid synthesis
Reported to exhibit strong inhibition of root-knot nematode (Meloidogyne incognita) juveniles via volatile organic compounds (dimethyl disulfide and benzaldehyde), with greenhouse trials demonstrating root-gall suppression management efficiencies of 88–100% compared with untreated controls
Reported to significantly inhibit mycelial growth and zoospore production of four Phytophthora species (P. capsici, P. infestans, P. parasitica var. nicotiana, and P. sojae) in vitro and in vivo, with biocontrol efficiencies ranging from approximately 46% to 100% in pepper, potato, tomato, and soybean bioassays
Reported to alleviate chromium and salt (NaCl) stress in rice by reducing oxidative stress indicators (MDA, H2O2, electrolyte leakage), enhancing plant growth, osmolyte synthesis, and enzymatic antioxidant activity, and restricting Na+ and Cr6+ uptake under single- and dual-stress conditions
See the full picture on Ochrobactrum pseudogrignonense
This is one lens. Every connected source on Ochrobactrum pseudogrignonense in one place: AAPFCO Biostimulant, Scientific Literature, Potential Claims, Taxonomy & Synonyms.