Role of Bacterial Endophytes in Plant Disease Control

Muthukumar, A.; Udhayakumar, R.; Naveenkumar, R

doi:10.1007/978-3-319-66544-3_7

Cited by 25 publications

(15 citation statements)

References 139 publications

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“…These bacteria are potential producers of secondary metabolites (Abdallah et al 2019;Verma et al 2019). Seven endophytic bacteria, Aerococcus viridans, Bacillus megaterium, Bacillus subtilis, Pseudomonas chlororaphis, Pseudomonas vesicularis, Serratia marcescens, and Sphingomonas paucimobilis effectively against root-knot nematode (Muthukumar et al 2017).…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%

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

et al. 2020

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“…Acinetobacter, Agromyces, Azoarus, Bacillus, Brevibacillus, Brevundimonas, Burkholderia, Comamonas, Corynebacterium, Delftia, Dietzia, Enterobacter, Frigoribacterium, Kocuria, Lysinibacillus, Methylobacterium, Microbacterium, Micrococcus, Paenibacillus, Pantoea, Pseudomonas, Rhizobium, Rhodococcus, Serria, Sphingobacterium, Sphingomonas, Sporosarcina, Staphylococcus, Stenotrophomonas, Xanthomonas, etc. [7,[12][13][14][15][16][17][18][19][20][21][22]. All of these described bacterial endophytic genera are also common inhabitants of the rhizosphere [7,8].…”

Section: Introductionmentioning

confidence: 99%

Appraising Endophyte–Plant Symbiosis for Improved Growth, Nodulation, Nitrogen Fixation and Abiotic Stress Tolerance: An Experimental Investigation with Chickpea (Cicer arietinum L.)

et al. 2019

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Chickpea is an important leguminous crop that improves soil fertility through atmospheric nitrogen fixation with the help of rhizobia present in nodules. Non-rhizobia endophytes are also capable of inducing nodulation and nitrogen fixation in leguminous crops. The aim of the current study was to isolate, characterize and identify the non-rhizobia endophytic bacterial strains from root nodules of chickpea. For this purpose, more than one hundred isolates were isolated from chickpea root nodules under aseptic conditions and were confirmed as endophytes through re-isolating them from root nodules of chickpea after their inoculation. Nineteen confirmed endophytic bacterial strains revealed significant production of indole acetic acid (IAA) both in presence and absence of L-tryptophan and showed their ability to grow under salt, pH and heavy metal stresses. These strains were evaluated for in vitro plant growth promoting (PGP) traits and results revealed that seven strains showed solubilization of P and colloidal chitin along with possessing catalase, oxidase, urease and chitinase activities. Seven P-solubilizing strains were further evaluated in a jar trial to explore their potential for promoting plant growth and induction of nodulation in chickpea roots. Two endophytic strains identified as Paenibacillus polymyxa ANM59 and Paenibacillus sp. ANM76 through partial sequencing of the 16S rRNA gene showed the maximum potential during in vitro PGP activities and improved plant growth and nodulation in chickpea under the jar trial. Use of these endophytic strains as a potential biofertilizer can help to reduce the dependence on chemical fertilizers while improving crop growth and soil health simultaneously.

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“…Bactérias endofíticas podem ser utilizadas como uma alternativa de menor impacto ambiental no controle da ferrugem do cafeeiro causada por Hemileia vastatrix (SILVA et al, 2008;MUTHUKUMAR et al, 2017;SILVA et al, 2019), uma vez que ao colonizarem as folhas impedem a germinação dos uredósporos pela secreção de substâncias antimicrobianas (SHIOMI et al, 2006). Dentre as espécies que apresentam melhor desempenho nesse tipo de controle estão: Bacillus lentimorbus, Bacillus cereus, Clavibacter michiganensis subsp.…”

Section: Benefícios Da Utilização De Bactérias Endofíticasunclassified

Bactérias Endofíticas: Colonização, Benefícios E Identificação / Endophytic Bacteria: Colonization Benefits and Identification

Miguel

Delvaux

Oliveira

et al. 2021

BJD

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Bactérias endofíticas residem nos tecidos internos das plantas em pelo menos uma etapa do seu ciclo de vida, sem causar sintomas aparentes de doença. São representadas por uma grande diversidade bacteriana composta pelos filos Alfa-, Beta-e Gamma-Proteobacteria, Actinobacteria, Firmicutes e Bacteroidetes. Em geral originam de comunidades bacterianas das raízes ou epifíticas, bem como sementes infectadas, podendo ainda, penetrar na planta ou ativamente ou por ferimentos e aberturas naturais. Após a penetração elas podem promover o crescimento vegetal pela produção de compostos promotores de crescimento, sendo ainda responsáveis pela liberação de metabólitos antimicrobianos, que podem suprimir patógenos. Apresentam potencial para utilização na agricultura e na indústria, podendo ser empregadas como vetores para introdução de genes de interesse em plantas, inibidores de patógenos e fontes de metabólitos primários e secundários de interesse. Assim, elas são importantes tanto na ciência básica como na aplicada, sendo de fundamental interesse o seu estudo. Portanto, buscou-se com este trabalho levantar os principais aspectos da interação planta-bactéria endofítica, enfatizando os processos de penetração, colonização e identificação delas na planta, baseando-se nas discussões atuais sobre o assunto.

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Role of Bacterial Endophytes in Plant Disease Control

Cited by 25 publications

References 139 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.)

Appraising Endophyte–Plant Symbiosis for Improved Growth, Nodulation, Nitrogen Fixation and Abiotic Stress Tolerance: An Experimental Investigation with Chickpea (Cicer arietinum L.)

Bactérias Endofíticas: Colonização, Benefícios E Identificação / Endophytic Bacteria: Colonization Benefits and Identification

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