Surfactin and Other Lipopeptides from Bacillus spp.

Jacques, Philippe

doi:10.1007/978-3-642-14490-5_3

Cited by 159 publications

(187 citation statements)

References 164 publications

(181 reference statements)

Supporting

Mentioning

167

Contrasting

Unclassified

Order By: Relevance

“…Rather, it appears that high concentrations of surfactin promoted the in vitro growth of Z. tritici. This lipopeptide is indeed a powerful amphiphilic biosurfactant involved in bacterial mobility and in the formation of biofilms, pellicles, and fruiting bodies of Bacillus [8,9]. It is therefore likely that the surface tension of PDA media containing surfactin was lowered, thereby allowing a better spreading of the inoculum droplets on the plates during inoculation.…”

Section: Discussionmentioning

confidence: 99%

“…This cyclic lipopeptide consists of heptapeptides interlinked with a β-amino fatty acid chain of varying length to form a cyclic lactone ring structure [7,8]. In contrast to elicitor compounds secreted by pathogens (pathogenic-associated molecular patterns or PAMPs), surfactin is a microbe-associated molecular pattern (MAMP) which is generally produced by plant growth-promoting rhizobacteria (PGPR) belonging to specific Bacillus strains [8][9][10][11]. Surfactin is a powerful biosurfactant which has mostly been studied for its antagonistic and cytotoxic activity against multiple pathogens [8,12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surfactin Protects Wheat against Zymoseptoria tritici and Activates Both Salicylic Acid- and Jasmonic Acid-Dependent Defense Responses

et al. 2018

View full text Add to dashboard Cite

Natural elicitors induce plant resistance against a broad spectrum of diseases, and are currently among the most promising biocontrol tools. The present study focuses on the elicitor properties of the cyclic lipopeptide surfactin on wheat, in order to stimulate the defenses of this major crop against the challenging fungal pathogen Zymoseptoria tritici. The protection efficacy of surfactin extracted from the strain Bacillus amyloliquefaciens S499 was investigated through greenhouse trials. Surfactin protected wheat by 70% against Z. tritici, similarly to the chemical reference elicitor Bion ® 50WG. In vitro biocidal assays revealed no antifungal activities of surfactin towards the pathogen. A biomolecular RT-qPCR based low-density microarray tool was used to study the relative expression of 23 wheat defense genes. Surfactin significantly induced wheat natural defenses by stimulating both salicylic acid-and jasmonic acid-dependent signaling pathways. Surfactin was successfully tested as an elicitor on the pathosystem wheat-Z. tritici. These results promote further sustainable agricultural practices and the reduction of chemical inputs.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Surfactin Protects Wheat against Zymoseptoria tritici and Activates Both Salicylic Acid- and Jasmonic Acid-Dependent Defense Responses

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The detailed analysis of RMB7-supernatant through ESI-MS technique showed the presence of surfactin and iturin A compounds (Figure 6), which are major bioactive metabolites produced by B. Subtilis [16,17]. Surfactins and iturins are the cyclic lipopeptides composed of α-amino acids linked to β-hydroxy fatty acids and have potential biotechnology and biopharmaceutical applications [11,12].…”

Section: Discussionmentioning

confidence: 99%

“…Bacillus subtilis is a common soil and rhizosphere resident bacteria having dual beneficial properties of plant growth promotion as well as biocontrol activities [11,12]. Almost 5% of its genome is devoted for the production of antibiotics and many strains from this genus have shown the potential to produce about two dozen structurally diverse antimicrobial compounds [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Genetic, physiological and biochemical characterization of Bacillus sp . strain RMB7 exhibiting plant growth promoting and broad spectrum antifungal activities

et al. 2014

View full text Add to dashboard Cite

Background: Plant growth promoting rhizobacteria (PGPR) are functionally diverse group of bacteria having immense potential as biofertilizers and biopesticides. Depending upon their function, they may serve as partial replacements for chemical fertilizer or pesticides as an eco-friendly and cost-effective alternatives as compared to their synthetic counterparts. Therefore, isolation, characterization and practical evaluation of PGPRs having the aforementioned multifaceted beneficial characteristics, are essentially required. This study describes the detailed polyphasic characterization of Bacillus sp. strain RMB7 having profound broad spectrum antifungal activity and plant growth promoting potential. Results: Based on 16S rRNA gene sequencing, strain RMB7 was identified as Bacillus specie. This strain exhibited the production of 8 mg. L −1 of indole-3-acetic acid (IAA) in tryptophan-supplemented medium. It was able to solubilize 50.6 mg. L −1 tri-calcium phosphate, reduced 601ηmol acetylene h −1 /vial and inhibited >70% growth of nine fungal phytopathogens tested in vitro. Under natural pathogen pressure, inoculation with strain RMB7 and RMB7-supernatant conferred resistance by arugula plant against Pythium irregulare with a concurrent growth improvement over non-inoculated plants. The T-RFLP analysis based on 16S rRNA gene showed that inoculation with RMB7 or its supernatant have a major impact on the indigenous rhizosphere bacterial population. Mass spectrometric analysis revealed the production of lipopeptide surfactins as well as iturin A presence in crude extract of RMB7. PCR-amplification further confirmed the presence of genes involved in the biosynthesis of these two bioactive lipopeptide compounds.

show abstract

“…Surfactin is a multifunctional lipopeptide that provides surfactant and signaling activities required for motility and biofilm development (2)(3)(4). Plipastatin is a lipopeptide with antifungal properties (5,6). A third gene cluster (pksA-pksS; 78 kb) encodes machinery for the production of bacillaene, a hybrid nonribosomal peptide/polyketide (NRP/PK) produced by B. subtilis (7,8).…”

mentioning

confidence: 99%

Bacterial Competition Reveals Differential Regulation of the pks Genes by Bacillus subtilis

2014

View full text Add to dashboard Cite

show abstract

Surfactin and Other Lipopeptides from Bacillus spp.

Cited by 159 publications

References 164 publications

Surfactin Protects Wheat against Zymoseptoria tritici and Activates Both Salicylic Acid- and Jasmonic Acid-Dependent Defense Responses

Surfactin Protects Wheat against Zymoseptoria tritici and Activates Both Salicylic Acid- and Jasmonic Acid-Dependent Defense Responses

Genetic, physiological and biochemical characterization of Bacillus sp . strain RMB7 exhibiting plant growth promoting and broad spectrum antifungal activities

Bacterial Competition Reveals Differential Regulation of the pks Genes by Bacillus subtilis

Contact Info

Product

Resources

About