Biocontrol potential of Trichoderma asperellum mutants T39 and T45 and their growth promotion of poplar seedlings

Guo, Ruiting; Wang, Zhiying; Zhou, Chunxia; Huang, Ying; Fan, Haijuan; Wang, Yucheng; Liu, Zhihua

doi:10.1007/s11676-018-0797-0

Cited by 6 publications

(3 citation statements)

References 23 publications

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“…SOD catalyses the dismutation of the superoxide anion to hydrogen and molecular oxygen, the first step in active oxygen-scavenging systems. POD is also important for oxygen scavenging and in protecting cells against many environmental stresses [17].…”

Section: Introductionmentioning

confidence: 99%

Endophytic Bacillus altitudinis Q7 from Ginkgo biloba inhibits the growth of Alternaria alternata in vitro and its inhibition mode of action

Sun

et al. 2021

Biotechnology & Biotechnological Equipment

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The study was focussed on the inhibitory mechanism associated with the ability of an endophytic bacterium -Bacillus altitudinis Q7, obtained from Ginkgo biloba, to inhibit the growth of Alternaria alternata in vitro. A fungus, identified as Alternaria alternata was isolated from the rotten part of an apple. One of the endophytes was identified as Bacillus altitudinis Q7. Effect of Bacillus altitudinis Q7 on Alternaria alternata was characterized by measuring membrane permeability and lipid peroxidation. Antioxidant enzymes in Alternaria alternata were determined before and after exposure to Bacillus altitudinis Q7. Results indicated that cell membranes in Alternaria alternata were damaged, lipid peroxidation was enhanced, and superoxide dismutase, peroxidase, and polyphenol oxidase were significantly inhibited. Content of lipopeptides produced by Bacillus altitudinis Q7 was higher than other metabolites. The FTIR spectra revealed that the prepared antibacterial lipopeptides is a cyclic lipopeptides. The effect of lipopeptides produced by Bacillus altitudinis Q7 at 2 mg/mL against Alternaria alternata in vitro reached 83.2%. The lipopeptide-treated group showed the same trend as Q7 fermentation broth in inhibition mode of action. Moreover, the utilization of proteins and sugars during culturing of Alternaria alternata decreased when adding lipopeptides to the growth medium. Bacillus altitudinis Q7 from Ginkgo biloba significantly inhibited the growth of Alternaria alternata and is a very promising biocontrol strain against Alternaria alternata. The study of endophytic bacteria and its metabolites is being done to identify biological control alternatives. The results provide a theoretical basis for understanding their antagonistic properties.

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Section: Introductionmentioning

confidence: 99%

Endophytic Bacillus altitudinis Q7 from Ginkgo biloba inhibits the growth of Alternaria alternata in vitro and its inhibition mode of action

Sun

et al. 2021

Biotechnology & Biotechnological Equipment

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“…Jidere and Oluwatayo (2018) showed that the leaf extract of moringa decreased egg hatching and increased juvenile mortality of M. incognita. Marigold extract showed high hatching inhibition on treated egg masses (Guo et al 2020). Under greenhouse conditions, moringa suppressed galling and reproduction of M. incognita and enhanced the length and fresh weight of shoots of eggplant (Khairy et al 2021).…”

Section: Discussionmentioning

confidence: 94%

Integrated management of Meloidogyne incognita on tomato using combinations of abamectin, Purpureocillium lilacinum, rhizobacteria, and botanicals compared with nematicide

El-Ashry

Ali

Elsobki

et al. 2021

Egypt J Biol Pest Control

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Background Acceptable alternative eco-friendly tools in the present study were tested to control the root-knot nematode, Meloidogyne incognita, on greenhouse-cultivated vegetables. The nematicidal effect of rhizobacteria (Pseudomonas and Serratia), egg parasitic fungus (Purpureocillium lilacinum), abamectin (Streptomyces avermitilis), and 3 botanicals (colocynth, Citrullus colocynthis; moringa, Moringa oleifera; marigold, Tagetes erecta L.) singly or in combination was tested against M. incognita, in comparison with emamectin benzoate. Results In vitro treatments revealed that egg hatching and juvenile mortality were influenced by the type of bioagents, plant species of botanicals, and exposure time. All the tested bioagents and botanicals displayed nematicidal potential via their ovicidal and larvicidal action on egg hatching and J2 mortality of M. incognita. Three and 5 days post-treatment, abamectin and emamectin benzoate were more effective than P. lilacinum, Serratia and Pseudomonas, and C. colocynthis in inhibiting egg hatching: 96.31 and 94.88%; 95.79 and 94.05%; 94.11 and 94.46%; 85.54 and 87.28%; 88.87 and 84.30%, respectively. On the other hand, after 10 days, P. lilacinum gave the highest inhibition percentage (99.00%), followed by abamectin (89.25%). However, the difference was insignificant compared with the inhibition percentage of rhizobacteria, Serratia and Pseudomonas (88.69%; p ≤ 0.05). Moreover, juvenile mortality was 100.0, 96.80, and 91.60% after 10 days of treatment, respectively. However, botanicals showed a lower effect on egg hatching and juvenile mortality. Under greenhouse conditions, potential antagonism towards M. incognita by application the mixture of biocontrol agents and botanicals was more effective in controlling M. incognita than single treatments. Conclusions The combination of abamectin and/or emamectin benzoate with P. lilacinum and rhizobacteria was the most effective against M. incognita, followed by rhizobacteria and P. lilacinum, not only in decreasing galls and reproduction of M. incognita but also in increasing plant growth of tomato parameters than the control. The application of various bioagents including abamectin might be a potential antagonism strategy against phytonematodes in protected agricultural areas.

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“…The plants in the experiment were used to assess the effects of strain TM11 on defense enzyme activity. SOD, POD and CAT were determined by the nitrogen blue tetrazole (NBT) reduction method, visible spectrophotometry, and UV spectrophotometry ( Sundar et al 2004 ; Guo et al 2020 ). Tissue samples were harvested from each of three replicate plants.…”

Section: Methodsmentioning

confidence: 99%

Control Effect and Mechanism of Trichoderma asperellum TM11 against Blueberry Root Rot

Li,

Zhang,

Shang

et al. 2023

Polish Journal of Microbiology

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Fusarium oxysporum is the primary pathogen of blueberry root rot; furthermore, we found that Fusarium commune can also cause root rot in blueberries. Trichoderma spp. is widely used to control plant diseases. We isolated Trichoderma asperellum (TM11) from blueberry rhizosphere soil to explore its control effect and mechanism on F. oxysporum and F. commune. We found that the inhibitory effects of TM11 volatiles and broth metabolites on F. oxysporum were significant, but only F. commune volatile metabolites had a significant inhibitory effect on its growth. Twelve known antimicrobial metabolites were detected from the methanol extract of TM11 fermentation broth by HPLC-MS. TM11 lysed and coiled around the hyphae of F. oxysporum and F. commune. The pot experiment showed that TM11 had significant control effects against F. oxysporum and F. commune, and inoculation of TM11 prior to that of F. oxysporum and F. commune was more effective. The TM11, TM11 and F. oxysporum, or F. commune and distilled water treatments had different effects on the activities of superoxide dismutase, peroxidase and catalase, and the enzyme activity levels exhibited the following order: TM11 > TM11 and F. oxysporum or F. commune > distilled water. The results showed that TM11 provided effective control of blueberry root rot.

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Biocontrol potential of Trichoderma asperellum mutants T39 and T45 and their growth promotion of poplar seedlings

Cited by 6 publications

References 23 publications

Endophytic Bacillus altitudinis Q7 from Ginkgo biloba inhibits the growth of Alternaria alternata in vitro and its inhibition mode of action

Endophytic Bacillus altitudinis Q7 from Ginkgo biloba inhibits the growth of Alternaria alternata in vitro and its inhibition mode of action

Integrated management of Meloidogyne incognita on tomato using combinations of abamectin, Purpureocillium lilacinum, rhizobacteria, and botanicals compared with nematicide

Control Effect and Mechanism of Trichoderma asperellum TM11 against Blueberry Root Rot

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