Biological control potential and modes of action of Bacillus megaterium against Meloidogyne graminicola on rice

Padgham, Jon; Sikora, R. A.

doi:10.1016/j.cropro.2006.09.004

Cited by 119 publications

(63 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Bacterial culture of B. megaterium could significantly reduce infection of the nematode through the production of nematicidal volatiles (Huang et al, 2010). Similar effects have been shown for secondary metabolites of this bacterium that reduced hatching of M. graminicola in rice plants (Padgham and Sikora, 2006). These findings are in agreement with our results.…”

Section: Nematicidal Activity Of Crude Extract and 2-mbasupporting

confidence: 83%

Identification of 2-methylbutyric Acid as a Nematicidal Metabolite, and Biocontrol and Biofertilization Potentials of Bacillus pumilus L1

Lee¹,

Cho²,

Moon³

et al. 2016

Korean Journal of Soil Science and Fertilizer

View full text Add to dashboard Cite

The present study described the isolation of 2-methylbutyric acid (2-MBA) produced from Bacillus pumilus L1, to subsequently investigate its nematicidal activity for the control of the root-knot nematode. The results showed that 2-MBA could be purified by chromatographic techniques and was identified using nuclear magnetic resonance and liquid chromatography-mass spectrometry. Crude extract and partially purified compounds had a significant effect on the inhibition of egg hatchability and second-stage juvenile (J2) mortality. A dose-dependent effect of 2-MBA was observed for J2 mortality and egg hatchability. Egg hatchability was 69.2%, 59.9%, 32.7%, and 0.0% at 125, 250, 500, and 1000 μg mL -1 of 2-MBA after 4 d of incubation, respectively. Meanwhile, J2 mortality was in the range of 24.4%-100.0% after 2 d of incubation, depending on the concentrations of 2-MBA used. A pot experiment also demonstrated that treatment of B. pumilus L1 culture caused a significant reduction in the number of galls, egg masses, and J2 population than that of the tap water (TW) control. However, as the B. pumilus L1 culture concentration was decreased, the efficacy of nematode control by treatment of B. pumilus L1 culture was reduced compared to that of TW. B. pumilus L1 inoculation at different concentrations also promoted cucumber plant growth. Therefore, our study demonstrated the potential of 2-MBA from B. pumilus L1 as a biocontrol agent against the root-knot nematode and a plant growth promoter for cucumber plants.

show abstract

Section: Nematicidal Activity Of Crude Extract and 2-mbasupporting

confidence: 83%

Identification of 2-methylbutyric Acid as a Nematicidal Metabolite, and Biocontrol and Biofertilization Potentials of Bacillus pumilus L1

Lee¹,

Cho²,

Moon³

et al. 2016

Korean Journal of Soil Science and Fertilizer

View full text Add to dashboard Cite

show abstract

“…Apesar de utilizados, os nematicidas apresentam limitações como a natureza temporária do controle, o alto custo, o acúmulo do produto no solo e os riscos a saúde e ao ambiente (Nordmeyer & Dickson, 1985;Dong & Zhang, 2006). O controle biológico tem sido investigado como alternativa de manejo (Padgham & Sikora, 2007). Entre os biocontroladores estudados, as bactérias habitantes da rizosfera (rizobactérias) apresentam grande potencial.…”

unclassified

Potencial da microbiolização de sementes de arroz com rizobactérias para o biocontrole do nematoide das galhas

Ludwig¹,

Moura²,

Gomes³

2013

Trop. plant pathol.

View full text Add to dashboard Cite

Potential of microbiolization of rice seeds with rhizobacteria for root-knot nematode biocontrolThe potential of eight rhizobacteria that effectively control fungal diseases in rice [DFs185 (Pseudomonas synxantha), DFs223 (P. fluorescens), DFs306 (not identified), DFs416, DFs418 e DFs419 (Bacillus sp.), DFs422 (Bacillus subtilis), DFs471 (Stenotrophomonas malthophilia)] was evaluated for the control of Meloidogyne graminicola in vitro and in irrigated rice in the greenhouse. The rhizobacteria DFs185, DFs223, DFs306, DFs416 and DFs419 exceeded in reducing hatching and in increasing the mortality of M. graminicola J2. All rhizobacteria were able to produce at least one compound associated with the biocontrol of nematodes (chitinasis, phosphatases, lipases, proteinasis and siderophores). The number of eggs and galls of M. graminicola in rice plants was reduced compared to plants from seeds not microbiolized. The nematode reproduction factor was reduced on average by 29%, highlighting rhizobacteria DFs185 and DFs223 that reduced 35%. This result is significant because the rhizobacteria also control fungal diseases.

show abstract

“…Khan et al (2007) stated that biofertilizers particularly phosphate-solubilizing microorganisms could also be used in controlling nematode. Padgham and Sikora (2007) stated that B. megatherium reduced nematode population by 40%. El-Haddad et al (2011) stated that some beneficial bacteria including the nitrogen fixing bacteria, the phosphate solubilizing bacteria and the potassium solubilizing bacteria significantly reduced the nematode multiplication particularly 60 days after inoculation.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of some commercial bacterial biofertilizers and isolates against root knot nematode, Meloidogyne incognita infesting green bean, Phaseolus vulgaris

2015

Sci. Agric

View full text Add to dashboard Cite

Under field conditions, Four commercial biofertilizers namely, phosphorine (containing phosphate dissolving bacterium namely Bacillus megatherium or megaterium), Rhizobacterin (containing plant growth promotimg bacteria e.g. Bacillus spp. and Pseudomonas fluorescens), potassiumag ( containing potassium dissolving bacterium namely, Bacillus circulans), al-aukadin (containing Rhizobium phaseoli) as well as bacteria, Pseudomonas fluorescens and Serratia spp. as liquid cultures either alone or in combination were tested for biocontrolling root knot nematode, Meloidogyne incognita infesting green bean cv. Hama plants. The results showed that all treatments had the potentiality to significantly (p≤0.05) reduce the root-knot nematode infectivity and reproduction, to great extend, along the growing season of green bean plants as indicated by the number of galls, egg masses and hatched juveniles on roots and number of juveniles in soil. Three months after application, the percentages reduction of the number of galls ranged from 46.4 for phosphorine only (T1) to 72.5% for phosphorine + S. fluorescens (T7) and phosphorine + Serratia spp. (T11). The same trend was noticed for the percentages reduction of egg masses. Single treatments were superior to the combined ones in increasing the studied pod yield parameters (Number and weight of green pods). Phosphorine (T1) and al-aukadin (T4) were as equal as each other in increasing the percentage increase of weight of green pods (92.1%) followed by that recorded by using rhizobacterin (T2). Co-toxicity factors for the two combined treatments of commercial products of phosphorine + S. fluorescens(T7) and phosphorine + Serratia spp.(T11) with M incognita after three months showed additive interaction effects, as they caused higher percentage gall reduction than that caused by either of them alone. At the same trend, the soluble carbohydrate, soluble protein, nitrogen and potassium contents increased in leaves and pods of green bean by some of the tested compounds compared with those of untreated check

show abstract

Biological control potential and modes of action of Bacillus megaterium against Meloidogyne graminicola on rice

Cited by 119 publications

References 13 publications

Identification of 2-methylbutyric Acid as a Nematicidal Metabolite, and Biocontrol and Biofertilization Potentials of Bacillus pumilus L1

Identification of 2-methylbutyric Acid as a Nematicidal Metabolite, and Biocontrol and Biofertilization Potentials of Bacillus pumilus L1

Potencial da microbiolização de sementes de arroz com rizobactérias para o biocontrole do nematoide das galhas

Evaluation of some commercial bacterial biofertilizers and isolates against root knot nematode, Meloidogyne incognita infesting green bean, Phaseolus vulgaris

Contact Info

Product

Resources

About