What benefits of Aneurinibacillus aneurinilyticus have been cited in the scientific literature?
Aneurinibacillus aneurinilyticus has 27 agricultural benefits cited in peer-reviewed research. Studies report nitrogen fixation (nifH gene present; acetylene reduction at 202.91 nmol ethylene mL⁻¹ h⁻¹), phosphate solubilization reaching 260 mg/L via gluconic and oxalic acid, and synthesis of IAA, siderophores, and ammonia — traits the literature associates with PGPR biostimulant potential.
Published biocontrol studies report antifungal inhibition of 93.58% against Sclerotium rolfsii, 91.58% against Rhizoctonia solani, and 64.3% against Fusarium oxysporum, with electron microscopy confirming hyphal destruction. The literature also documents induced systemic resistance in pea against F. oxysporum f. sp. pisi, evidenced by elevated PAL, peroxidase, and catalase activity.
For abiotic stress tolerance, peer-reviewed research documents survival at 6% NaCl and -0.73 MPa drought stress, ACC deaminase activity exceeding 1,500 nmol α-ketobutyrate mg protein⁻¹ h⁻¹, and 255% shoot fresh weight gains in French bean under salinity. The largest reported results — 87.13% Macrophomina control and 149.6% cluster bean yield improvement — derive from four-microbe consortium trials and should not be attributed to this strain in isolation.
1AAPFCO-accepted claims
Listing details- Beneficial to plants and/or soils.
Accepted wording, shown verbatim · source: AAPFCO Plant Biostimulant list
2Potential claims from the literature
Reported to fix nitrogen, as evidenced by acetylene reduction activity (202.91 nmol ethylene mL⁻¹ h⁻¹) and the presence of the nitrogenase (nifH) gene in strain CKMV1
Reported to solubilize tricalcium phosphate, producing up to 260 mg/L soluble phosphate via organic acid (gluconic and oxalic acid) production, with genetic evidence from glucose dehydrogenase (gdh) and pyrroloquinoline quinone synthase (pqq) genes
Reported to produce indole-3-acetic acid (IAA), a phytohormone associated with plant growth promotion
Reported to produce siderophores, which are associated with iron acquisition and plant growth promotion
Reported to increase seed germination (27.07%), shoot length (42.33%), root length (52.6%), shoot dry weight (62.01%), and root dry weight (45.7%) in tomato under net house conditions
Reported to increase NPK content (N: 0.74%, P: 0.36%, K: 1.82%) in tomato plants under net house conditions
Reported to exhibit antifungal activity against multiple phytopathogens including Sclerotium rolfsii (93.58%), Rhizoctonia solani (91.58%), Alternaria sp. (71.08%), Phytophthora sp. (71.37%), Fusarium oxysporum (64.3%), and Dematophora necatrix (52.71%)
Reported to produce hydrogen cyanide (HCN), a compound associated with biocontrol activity
Reported to exhibit antagonistic activity against Fusarium oxysporum f. sp. pisi, Rhizoctonia solani, and Pythium aphanidermatum, with scanning electron microscopy showing hyphal distortion and destruction
Reported to induce systemic resistance (ISR) in pea plants challenged with Fusarium oxysporum f. sp. pisi, as evidenced by enhanced activities of PAL, peroxidase, polyphenol oxidase, ascorbate oxidase, catalase, and increased total phenolic content
Reported to reduce oxidative stress in host plant leaves, as indicated by decreased malondialdehyde (MDA) content and reduced lipid peroxidation
Reported to promote shoot height, fresh shoot weight, root length, and fresh root weight of tomato seedlings when isolated from hot springs, with improvements ranging from 3.12% to 74.37%, 33.33% to 350.0%, 16.06% to 130.41%, and 36.36% to 318.18%, respectively, over control
Reported to tolerate up to 5% NaCl (w/v) and survive heat shock at 70°C, suggesting potential utility in saline and arid environments
Reported to exhibit strong biocontrol activity against Macrophomina phaseolina (dry root rot) as part of a four-microbe consortium, achieving 87.13% disease control and reducing percent disease incidence to 16.7% in pot experiments
Reported, as part of a four-microbe consortium, to enhance plant height (1.66-fold), fresh weight (2.81-fold), dry weight (2.56-fold), and yield (21.4-fold) over infected control in cluster bean
Reported, as part of a four-microbe consortium, to upregulate antioxidant enzyme activities (peroxidase, polyphenol oxidase, PAL, tyrosine ammonia lyase, superoxide dismutase, catalase) and increase secondary metabolites (total chlorophyll, carotenoids, total phenols, flavonoids, antioxidant activity, tannins) in cluster bean plants
Reported to possess ACC deaminase activity (>1500 nmol α-ketobutyrate mg protein⁻¹ h⁻¹), which is associated with reduction of stress-induced ethylene levels in plants
Reported to demonstrate in vitro tolerance to 6% NaCl salt stress and drought stress (-0.73 MPa)
Reported to alleviate salinity stress in French bean, reducing stress-stimulated ethylene levels by ~60% and increasing root length (110%), root fresh weight (~45%), shoot length (60%), shoot fresh weight (255%), root biomass (220%), shoot biomass (425%), and total chlorophyll content (~57%) under salinity stress conditions
Reported to solubilize ZnSO₄, suggesting zinc solubilization activity
Reported to produce ammonia, a trait associated with plant growth promotion
Reported to exhibit antagonistic activity against Xanthomonas axonopodis pv. cyamopsidis (bacterial leaf blight) as part of a four-microbe consortium, reducing percent disease index to 11.90% (87.80% disease control) in pot experiments and to 50.67% (48.88% disease control) in field validation
Reported, as part of a four-microbe consortium, to increase plant height (44.90%), fresh weight (73.30%), dry weight (86.70%), number of pods per plant (200.00%), and yield (149.60%) in cluster bean under field conditions
Reported, as part of a four-microbe consortium, to enhance expression of antioxidant enzyme synthesizing genes (pod, sod, cat) and plant defensin gene (pdf1.2) in cluster bean under bacterial blight stress
Reported to exhibit antagonistic activity against Alternaria burnsii (Alternaria blight) as part of a four-microbe consortium, achieving ~86% inhibition in dual plate assays and reducing percent disease index to 32.47% (64.87% disease control) in cumin
Reported, as part of a four-microbe consortium, to enhance chlorophyll (154%), carotenoid content (88%), plant height (78.77%), dry weight (72.81%), and seed yield (104%) in cumin compared to infected control
Reported, as part of a four-microbe consortium, to enhance production of secondary metabolites (total phenol, flavonoids, antioxidant activity, tannins) and activation of antioxidant-defense enzymes (POX, PPOX, CAT, SOD, PAL, TAL) in cumin plants challenged with Alternaria burnsii
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