Non-streptomycete actinomycetes as biocontrol agents of soil-borne fungal plant pathogens and as plant growth promoters

El‐Tarabily, Khaled A.; Sivasithamparam, Krishnapillai

doi:10.1016/j.soilbio.2005.12.017

Cited by 253 publications

(162 citation statements)

References 138 publications

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“…Actinomycetes receive a wide attention due to their potential as producers of a large number of useful and diverse function bioactive secondary metabolites such as antibiotics and extracellular enzymes (Inbar et al 2005;El-Tarabily and Sivasithamparam 2006). Actinomycetes have been associated as biocontrol agent in several studies against plant pathogenic fungi and pathogenic bacteria (Hasegawa et al 2006;Baltz 2008;Loqman et al 2009;Oskay 2009).…”

Section: Introductionmentioning

confidence: 99%

In vitro Antimicrobial Assay of Actinomycetes in Rice AgainstXanthomonas oryzae pv. oryzicola and as Potential Plant Growth Promoter

Hata

Sijam

Ahmad

et al. 2015

Braz. arch. biol. technol.

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Section: Introductionmentioning

confidence: 99%

In vitro Antimicrobial Assay of Actinomycetes in Rice AgainstXanthomonas oryzae pv. oryzicola and as Potential Plant Growth Promoter

Hata

Sijam

Ahmad

et al. 2015

Braz. arch. biol. technol.

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“…Enzimas que diversos microorganismos las producen entre los que se encuentran las PGPRs, en quienes se han descrito las glucanasas, proteasas y quitinasas. Estas actúan mediante la degradación de los polímeros que componen la pared celular fúngica de los deterioradores de la madera, al igual como se describió que ocurre en hongos fitopatógenos (El-Tarabily y Sivasithamparam, 2006). Entre las principales PGPRs productoras de estas enzimas destacan Bacillus altitudinis y B. amyloliquefaciens (Sunar et al, 2013;Tariq et al, 2017).…”

Section: Resultsunclassified

“…These enzymes are produced by diverse microorganisms, including PGPRs, in which there have been descriptions of glucanases, proteases and chitinases. These act with the degradation of the polymers that make up the fungal cell wall of wood deteriorators, as described that takes place in pathogenic fungi (El-Tarabily and Sivasithamparam, 2006). Some of the main PGPRs that produce these enzymes are Bacillus altitudinis and B. amyloliquefaciens (Sunar et al, 2013;Tariq et al, 2017).…”

Section: Estrategias Bacterianas Para El Control De Hongos Que Deterimentioning

confidence: 99%

Principales preservadores maderables y exudados microbianos con actividad antagonista al desarrollo en agentes biológicos deletéreos

García-Ortiz

Benítez-Rocha

Martínez-Pacheco

et al. 2017

RMF

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Resumen. La madera de baja durabilidad es susceptible de deterioro por xilófagos y su protección es una meta tecnológica no alcanzada que genera pérdidas económicas y materiales. Alternativas para evitar el uso de preservadores convencionales tóxicos y contaminantes se pueden establecer mediante el conocimiento del microecosistema bacteriano en la madera. La protección de este material es posible obtenerla con bacterias y sus exudados. El propósito de esta investigación es destacar que el biodeterioro de la madera de baja durabilidad es evitable mediante estrategias microbiológicas relevantes para el control de los hongos xilófagos. La observación es que bacterias de los géneros Arthrobacter, Bacillus y Pseudomonas y sus exudados potencialmente son agentes de protección que exhiben mecanismos de acción diferentes como, el antagonismo, el parasitismo y la producción de exudados que contienen moléculas con efecto: antimicrobiano (antibióticos), quelante (sideróforos) que inhiben enzimas o funciones y compuestos volátiles (dimetilhexadecilamina). El conocimiento de este ecosistema microbiano facilitará la construcción de una alternativa al uso de los preservadores convencionales de madera y constituye un área de oportunidad. Se evidencia la ausencia del conocimiento de bacterias antagónicas de los xiló-fagos, el manejo de la producción y composición de sus exudados y su aplicación, con lo que se manifiesta un campo inexplorado en la biotecnología de la preservación de la madera.

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“…Siderophore production for rhizosphere colonization has also been recorded as one of the important mechanism by certain PGPRs (B. japonicum, R. leguminosarum and Sinorhizobium meliloti) (Carson et al, 2000;El-Tarabily and Sivasithamparam, 2006) with plant growth promoting activity. Besides, iron-chelating siderophores (Schippers et al, 1988), antibiotics (Weller, 1988) and hydrogen cyanides (Stutz et al, 1986) are also likely to be produced by PGPR strains, participating tremendously in the reduction of phytopathogens and deleterious rhizobacteria with a corresponding improvement in plant health.…”

Section: Production Of Siderophore Compoundsmentioning

confidence: 99%

Plant growth promoting rhizobacteria and their potential for biocontrol of phytopathogens

Ramadan¹,

Abdel-Hafez²,

Hassan³

et al. 2016

Afr. J. Microbiol. Res.

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Growth promotion and disease control by rhizobacteria are complex interrelated processes that involve direct and indirect mechanisms. The mechanisms include synthesis of some metabolites (auxin, cytokinin and gibberellins), induction of 1-aminocyclopropane-1-carboxylate (ACC) deaminase, production of siderophore, antibiotics, hydrogen cyanide hydrogen cyanide (HCN) and volatile compounds. They also include mineral solubilization competition, and induction of systemic resistance. These bacteria are suitable as soil inoculants because they have the potential for rapid and aggressive colonization. This feature alone is characterised as a disease control mechanism, which prevents the invasion of detrimental soil microorganisms onto the root surface. Inoculant-based plant growthpromoting rhizobacteria (PGPR) is applied extensively on agricultural crops to improve plants' growth and simultaneously reduce chemical inputs like fertilizer and pesticide which can cause environmental degradation. The structure of the rhizobacterial community is affected by several factors including plant genotype and is determined by the amount and composition of root exudates. In addition, soil type and fertility are the contributing factors that shape the community. This form of communication can affect plants' growth, nutrient status and also susceptibility to stress and pathogens in the host plant. PGPR inoculants cause diverse beneficial interactions among plants, which leads to sustainable and environment-friendly agriculture. The application of rhizosphere soil of agricultural crops with desirable bacterial populations is considered promising in both laboratory and greenhouse experiment. Further, a clearer understanding of the way PGPRs promote plants' growth can lead to expanded exploitation of these 'biofertilizers' in order to reduce the potential negative environmental effects associated with food and fiber production.

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Non-streptomycete actinomycetes as biocontrol agents of soil-borne fungal plant pathogens and as plant growth promoters

Cited by 253 publications

References 138 publications

In vitro Antimicrobial Assay of Actinomycetes in Rice AgainstXanthomonas oryzae pv. oryzicola and as Potential Plant Growth Promoter

In vitro Antimicrobial Assay of Actinomycetes in Rice AgainstXanthomonas oryzae pv. oryzicola and as Potential Plant Growth Promoter

Principales preservadores maderables y exudados microbianos con actividad antagonista al desarrollo en agentes biológicos deletéreos

Plant growth promoting rhizobacteria and their potential for biocontrol of phytopathogens

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