Beneficial bacterial volatile compounds for the control of root-knot nematode and bacterial leaf blight on rice

Bui, Hung Xuan; Hadi, Buyung; Oliva, Ricardo; Schroeder, Nathan E.

doi:10.1016/j.cropro.2019.04.016

Cited by 27 publications

(25 citation statements)

References 39 publications

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“…Hu et al (2017) showed similar result with three endophytic bacteria from genus Bacillus, namely B. cereus, B. cereus, and B. altitudinis has the highest mortality activity above 90%. According to Bui et al (2020), Bacillus sp. and Paenibacillus sp.…”

Section: Discussionmentioning

confidence: 99%

Secondary metabolites produced by endophytic bacteria against the Root-Knot Nematode (Meloidogyne sp.)

et al. 2020

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Abstract. Maulidia V, Soesanto L, Syamsuddin, Khairan K, Hamaguchi T, Hasegawa K, Sriwati R. 2020. Secondary metabolites produced by endophytic bacteria against the Root-Knot Nematode (Meloidogyne sp.). Biodiversitas 21: 5270-5275. Endophytic bacteria live and colonize in plant tissues without causing disease to their plant host. Among several processes, these bacteria can produce secondary metabolites that can help in the defense of plant host against pathogens. This study aimed to identify endophytic bacteria as biocontrol agents against Meloidogyne sp. in tomato plants. Six endophytic bacteria candidates from the genus Pseudomonas, Arthrobacter, Bacillus, and Serratia were isolated from Solanum Lycopersicum, Psidium guajava, Pinus merkusii, Dendrocalamus asper, Albizia chinensis, and Theobroma cacao L, respectively. The average mortality of Meloidogyne sp. by endophytic bacteria was 70,27% to 95,46%. From these, B. thuringiensis AK08 produced compounds of the secondary metabolites such as flavonoid, phenol, tannins, terpenoids, steroids, saponins, and alkaloids. The best result of the average incubation period, number of galls in the root, number of nematodes at the root, and the number of nematodes in the soil on tomato plant were shown by B. thuringiensis. The major compounds in GC-MS analysis of B. thuringiensis were cholest-5-en-3-ol (3.beta.)-carbonochloridate (25.35%). Bacillus thuringiensis not only has rules as bio-insecticide but also has nematicidal effect.

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Section: Discussionmentioning

confidence: 99%

Secondary metabolites produced by endophytic bacteria against the Root-Knot Nematode (Meloidogyne sp.)

et al. 2020

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“…VOCs can control RKNs or pathogens directly by killing, repelling, or inhibiting egg hatching [19,38,39]. Recent studies have also found that VOCs can promote plant growth and suppress pathogens by affecting the structure and abundance of microorganisms in the plant rhizosphere [40].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Multiple Impacts of Furfural Acetone on Nematodes In Vitro and Control Efficiency against Root-Knot Nematodes in Pots and Fields

et al. 2020

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Root-knot nematodes (RKNs) seriously endanger agricultural development and cause great economic losses worldwide. Natural product furfural acetone (FAc) is a promising nematicide with strong attractant and nematicidal activities, but baseline information about the impact of FAc on the reproduction, egg hatching, feeding, and growth of nematodes and its pest control efficiency in field are lacking. Here, the inhibition effects of FAc on nematodes in vitro and its RKN control efficiency in pot and field were investigated. FAc inhibited the egg hatching of Meloidogyne incognita by 91.66% at 200 mg/L after 2 days and suppressed the reproduction, feeding, and growth of Caenorhabditis elegans in vitro. In pot experiments, FAc in various dosages reduced the disease index of plant root significantly. In field experiments, FAc exhibited control effect on RKNs equivalent to commercial nematicides avermectin and metam sodium, with a reduction in disease index by 36.89% at a dose of 50 mg/plant. FAc also reduced the population density of RKNs in soil, with a reduction rate of 75.26% at the dose of 750 mg/m2. No adverse effect was detected on the plant growth after FAc application. These results provide compelling evidence for development of FAc as an appropriate alternative for current nematicides.

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“…and Xanthomonas sp.) can control M. graminicola second-stage juveniles (J2s) on rice and significantly reduced infection of susceptible rice [23]. Co-inoculation of Streptomyces spp.…”

Section: Introductionmentioning

confidence: 99%

Nematicidal Evaluation and Active Compounds Isolation of Aspergillus japonicus ZW1 against Root-Knot Nematodes Meloidogyne incognita

Wang

et al. 2020

Agronomy

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The root-knot nematode is one of the most damaging plant-parasitic nematodes worldwide, and the ecofriendly alternative approach of biological control has been used to suppress nematode populations. Here the nematicidal activity of Aspergillus japonicus ZW1 fermentation filtrate against Meloidogyne incognita was evaluated in vitro and in greenhouse, and the effects of A. japonicus ZW1 fermentation filtrate on seed germination and the active compound of A. japonicus ZW1 fermentation filtrate were determined. The 2-week fermentation filtrate (2-WF) of A. japonicus ZW1 exhibited markedly inhibitory effects on egg hatching, and 5% 2-WF showed potential nematicidal activities on second-stage juveniles (J2s); the mortality of J2s was 100% after 24 h exposure. The internal contents of nematodes were degraded and remarkable protruded wrinkles were present on the body surface of J2s. The nematicidal activity of the fermentation was stable after boiling and was not affected by storage time. A germination assay revealed that 2-WF did not have a negative effect on the viability and germination of corn, wheat, rice, cowpeas, cucumbers, soybeans, or tomato seeds. The pot-grown study confirmed that a 20% fermentation broth solution significantly reduced root galls and egg numbers on tomatoes, and decreased galls and eggs by 47.3% and 51.8% respectively, over Czapek medium and water controls. The active compound from the A. japonicus ZW1 fermentation filtrate was isolated and identified as 1,5-Dimethyl Citrate hydrochloride ester on the basis of nuclear magnetic resonance (NMR) and LC-MS (liquid chromatograph-mass spectrometer) techniques. Thus, fermentation of A. japonicus ZW1 could be considered a potential new biological nematicide for the control of M. incognita.

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Beneficial bacterial volatile compounds for the control of root-knot nematode and bacterial leaf blight on rice

Cited by 27 publications

References 39 publications

Secondary metabolites produced by endophytic bacteria against the Root-Knot Nematode (Meloidogyne sp.)

Secondary metabolites produced by endophytic bacteria against the Root-Knot Nematode (Meloidogyne sp.)

Evaluation of Multiple Impacts of Furfural Acetone on Nematodes In Vitro and Control Efficiency against Root-Knot Nematodes in Pots and Fields

Nematicidal Evaluation and Active Compounds Isolation of Aspergillus japonicus ZW1 against Root-Knot Nematodes Meloidogyne incognita

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