Induction of resistance in chili against Sclerotium rolfsii by plant-growth-promoting rhizobacteria and Anagallis arvensis

Sharf, Warda; Javaid, Arshad; Shoaib, Amna; Khan, Iqra Haider

doi:10.1186/s41938-021-00364-y

Cited by 49 publications

(22 citation statements)

References 35 publications

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“…The desire, which has seen substantial growth in the past decades, prompted a search for microbial products to control plant maladies. Use of biocontrol to inhibit the growth of pathogenic microorganisms has long been considered a potential alternative to chemical fungicides (Carmona-Hernandez et al 2019;Ali et al 2020;Sharf et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Production of Antifungal Gelatinase by Enterococcus durans S2C and Its Potential Role in the Biological Control

Hayat¹

2021

IJAB

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Probiotic bacteria are good sources for antimicrobial and are normal microbiota of the gastrointestinal tract of animals and humans. Enterococci are found everywhere in nature and have been utilized as probiotics in the food industry. In the present study, Enterococcus durans S2C strain was isolated from raw cow’s milk using the culture-dependent method and evaluated for antifungal properties. The strain S2C showed promising extracellular proteolytic activity and the extracellular peptide was an important source of antifungal activity. Besides, a low rate of antibiotic resistance and non-hemolytic activity was detected in E. durans S2C. Strong antifungal activity of E. durans against two plant pathogenic fungi namely Fusarium oxysporum and Rhizoctonia solani was also recorded. Antifungal activity evaluation showed that R. solani colony was the most inhibited fungus followed by F. oxysporum. Gelatinase enzyme having antifungal activity was also purified from E. durans S2C isolate. This study concludes that the environmental-derived E. durans S2C strain can be selected for technological application to control pathogenic fungi and to protect the economic value of the crops. © 2021 Friends Science Publishers

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Section: Introductionmentioning

confidence: 99%

Production of Antifungal Gelatinase by Enterococcus durans S2C and Its Potential Role in the Biological Control

Hayat¹

2021

IJAB

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“…In order to maintain the common goal of sustainable agriculture development, the production and utilization of bio-fungicides to control rice blast have seen a rapid growth in recent years. A variety of microorganisms such as bacteria, fungi, oomycetes and their related metabolites can be developed as biological control agents to replace chemical fungicides (Al-Reza et al 2010;Hammami et al 2011;Ali et al 2020;Shoaib et al 2020;Sharf et al 2021). At present, many bio-control microorganisms exist, such as Bacillus spp., Pseudomonadaceae spp., Agrobacterium radiobact, Actinomycesbovis spp., Coniothyrium, Micromonospora spp., Achromobacter spp., Serratia marcescens, Bipolaris spp.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Inhibitory Effects of an Antifungal Protein from the Bacillus cereus Strain YN917

Zhou¹

2021

IJAB

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In this research, a type of antifungal protein derived from the Bacillus cereus strain YN917, was precipitated by ammonium sulfate after fermentation. We investigated the antifungal effects and antifungal mechanism of the protein as well as its stability under different stress conditions such as the variation of temperature, pH value, exposure to ultraviolet radiation and proteases. Furthermore, the in vitro needle inoculation method was carried out to explore the antagonistic effects of 40% isoprothiolane Wettable powder (WP), 20% tricyclazole WP and the YN917 antifungal protein against the rice blast pathogen, Magnaporthe oryzae. Results showed that 20% tricyclazole WP and 40% isoprothiolane EC treatments had significant antagonistic effects on rice blast, and that the YN917 protein also had a dual inhibitory effect on mycelium growth and conidiospore germination in M. oryzae, which can cause this mycelium to swell and twist. The YN917 protein had a broad inhibitory spectrum with different effects on 15 plant- associated pathogenic fungi and oomycetes, such as Botrytis cinerea, Bipolaris maydis and M. oryzae. In addition, the physical and chemical properties of this antifungal protein were relatively stable and have potential for application in the biocontrol of fungal pathogens in plants. Overall, the results revealed that this protein has a wide tolerance to different temperatures, pH values, exposures to ultraviolet radiation and proteases, which is required for it to function as a bio-control agent against rice blast under a wide range of environmental conditions. © 2021 Friends Science Publishers

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“…The beneficial bacteria live as well adapted nonphytopathogens in rhizosphere, soil, water, and in or on surface of plants tissues. These bacteria (antagonists) have 2 types of functional characterizations on plants, among these one is to promote plants growth through colonization of rhizosphere by plant growth promoting rhizobacteria (PGPR) and production of various phytohormones, such as auxin and gibberelines (Meng et al 2016;Rehman et al 2018), the other is to protect plants from the diseases, and increasing plant tolerance to environmental stresses (Meng et al 2012;Sharf et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Response of Melon Powdery Mildew to a Biocontrol Agent Bacillus velezensis M10 and Paraffin Oil

Lee¹

2021

IJAB

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The powdery mildew caused by air borne pathogen (Podosphaera fusca) is an important disease of cucurbits including melon (Cucumis melo L.) plants. Three antagonistic bacterial strains (M4, M10 and M11); isolated from the melon plants were tested for antagonistic activity against P. fusca and soil-borne pathogens of melon plants (Monosporascus cannonballus, Fusarium oxysporum f. spp. melonis, F. solani and Phomopsis spp.). All the three strains were identified as Bacillus velezensis based on sequence analysis of gyrase subunit A (gyrA) gene sequence. The bacterial strains showed significant antagonistic activity against soil and air borne pathogenic fungi. Among all strains, M10 showed a broad spectrum of mycelial growth inhibition against phytopathogenic fungi. The tested culture broth did not affect the pollen fertilization, flowering, fruit rot occurrence and fruit set development during blooming and cultivation season of the melon plants. The M10 culture broth stored for 3 and 6 months displayed biocontrol efficiency of 73.2 and 72.3%, respectively. Application of mixed solution of M10 culture broth + paraffin oil strongly suppressed the incidence and spread of powdery mildew. These results suggested that the combination of paraffin oil and B. velezensis M10 culture broth is an ecofriendly approach and possess strong biocontrol potential against melon powdery mildew and can also be used as antifungal agents for several plant pathogens. © 2021 Friends Science Publishers

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Induction of resistance in chili against Sclerotium rolfsii by plant-growth-promoting rhizobacteria and Anagallis arvensis

Cited by 49 publications

References 35 publications

Production of Antifungal Gelatinase by Enterococcus durans S2C and Its Potential Role in the Biological Control

Production of Antifungal Gelatinase by Enterococcus durans S2C and Its Potential Role in the Biological Control

Characterization and Inhibitory Effects of an Antifungal Protein from the Bacillus cereus Strain YN917

Response of Melon Powdery Mildew to a Biocontrol Agent Bacillus velezensis M10 and Paraffin Oil

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