Biological control of plant pathogens by Bacillus species

Fira, Djordje; Dimkić, Ivica; Berić, Tanja; Lozo, Jelena; Stanković, Slaviša

doi:10.1016/j.jbiotec.2018.07.044

Cited by 552 publications

(438 citation statements)

References 122 publications

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“…Iturins are also heptapeptides containing β‐amino fatty acids and are reported to be strong antifungal peptides. Iturins, unlike surfactins, damage the cells through the formation of ion‐conducting pores (Fira et al ). These lipopeptides show strong activity against fungal pathogens like Penicillium , Pestalotia , Gloesporidium , Colletotrichum , Alternaria , Botrytis etc.…”

Section: Antimicrobial Metabolitesmentioning

confidence: 99%

Bacillusspecies in soil as a natural resource for plant health and nutrition

et al. 2019

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The genus Bacillus is one of the predominant bacterial genera found in soil, and several species of this genus have been reported from diverse ecological niches. Endowed with tremendous genetic and metabolic diversity, Bacillus spp. serve multiple ecological functions in soil ecosystem from nutrient cycling to conferring stress tolerance to plants. Members of the genus Bacillus are known to have multiple beneficial traits which help the plants directly or indirectly through acquisition of nutrients, overall improvement in growth by production of phytohormones, protection from pathogens and other abiotic stressors. This functionally versatile genus is one of the most commercially exploited bacteria in the agro-biotechnology industry. Still its potential has not been realized sufficiently and requires an emphasis towards translating the relevant technologies from laboratory to land for the benefit of mankind.

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Section: Antimicrobial Metabolitesmentioning

confidence: 99%

Bacillusspecies in soil as a natural resource for plant health and nutrition

et al. 2019

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“…The in vitro antagonistic activity of BEB1 against N. keratoplastica, R. solani and S. vesicarium is shown in Figure 1. The inhibition zone formation might be due to the release of various diffusible extracellular antifungal metabolites by these endophytes (Leifert et al 1995;Fira et al 2018). The varying degree of antagonism of the endophytic bacterial isolates against plant pathogenic fungi in the dual culture assay in the present study might be due to the type and level of production of antifungal metabolites by these bacterial endophytes.…”

Section: Resultsmentioning

confidence: 64%

“…are extensively used as plant growthpromoting bacteria because of their ability to suppress plant pathogens and augment plant health (Jayaraj et al 2005;Hu et al 2014). Bacillus species are known to produce antibiotics such as mycobacillins, iturins, bacillomycins, surfactins, mycosubtilins, fungistatins, subsporins and fengycins (Fira et al 2018). The Food and Drug Administration (FDA) of the United States has approved the 'generally regarded as safe' (GRAS) status to B. subtilis (Harwood and Wipat 1996).…”

Section: Resultsmentioning

confidence: 99%

Cyanide degradation and antagonistic potential of endophytic Bacillus subtilis strain BEB1 from Bougainvillea spectabilis Willd

et al. 2020

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2020)Cyanide degradation and antagonistic potential of endophytic Bacillussubtilis strain BEB1 from Bougainvilleaspectabilis Willd, All Life, 13:1, 92-98, ABSTRACTBacterial endophytes were isolated from the leaves of Bougainvillea spectabilis Willd. and screened for their in vitro antagonistic activity against three important phytopathogenic fungi viz., Neocosmospora keratoplastica, Stemphylium vesicarium and Rhizoctonia solani. Among the 36 endophytic bacterial isolates screened, three isolates designated as BEB1, BEB5 and BEB6 inhibited the mycelial growth of all the three plant pathogenic fungi tested and recorded more than 10% growth inhibition. Scanning electron microscopic observations of hyphae of the pathogenic fungi at the periphery of the inhibition zone in the dual culture plate revealed morphological abnormalities such as shrinkage, pit formation and loss of turgidity. These isolates were identified as Bacillus subtilis (BEB1) and Bacillus cereus (BEB5 and BEB6) based on the MALDI Biotyper analysis. The Bacillus subtilis strain BEB1, which exhibited the highest level of antagonism, was tested for its sensitivity to cyanide and potential to degrade NaCN. The results revealed that this strain was capable of growing in a medium containing 5 mM of NaCN with a degradation efficiency of 53.8%. This endophyte is valuable for exploitation as a biocontrol agent to control diseases especially in the cyanogenic plants and bioremediation of cyanide from the industrial effluent. ARTICLE HISTORY

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“…In FUP evaluation (Table 4), the identified phytase (50), flagellin (49) and other proteins related to the synthesis pathway of antibiotics(like surfactin (71), tyrocidine (72), gramicidin (73), bacillomycin D(74), Bacillaene, Bacilysin, bacteriocin (70)), auxin (75), N-acy-L-homoserine Lactones (AHLs) (76), 2-3-butanediol (VOCs) (77), implies the comprehensive biological control capability of strain Ba168 including aggressive colonization (9, 23), induced systemic resistance of host plants (19) and plant growth-promoting (78). In general, lab studies showed that B. amyloliquefaciens Strain Ba168 have a good P. nicotianae suppression activity and FUP.…”

Section: Discussionmentioning

confidence: 99%

“…At present, Bacillus products are gradually gobbling up the market share of P. fluorescens , because of the ability to inducing systemic resistant (ISR) responses (19), secreting diverse antimicrobial peptide and enzymes, which are harmless to humans, animals and plants (20, 21), improving plant growth by promoting absorption of nutrients, increasing nutrient availability, helping plants to adapt to a number of environmental stresses and improving the nutritional status (22). More importantly, spores produced in their natural state are resistant to stress and the size of spores perfectly satisfy the requirements of the production of preparations (9, 23). Biocontrol PGPR, sometimes irrespective of antibiotics production, elicit ISR, which allows plants to withstand pathogen attack to leaves or roots (24, 25).…”

mentioning

confidence: 99%

Biocontrol of PGPR strain Bacillus amyloliquefaciens Ba168 against Phytophthora nicotianae on tobacco

Guo

Yuan

Luo

et al. 2019

Preprint

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Abstract： 9Tobacco black shank (TBS) caused by Phytophthora nicotianae is destructive to almost all 10 kinds of tobacco cultivars and is widespread in many tobacco-planted countries. Here, an isolated 11 plant growth-promoting rhizobacteria (PGPR) strain Ba168 is promise in biocontrol of TBS. In 12 vitro assays disclosed a strong P. nicotianae suppression activity and the field utilization potential 13 (FUP) by characterized the crude extract of culture filtrates of Ba168. P. nicotianae's growth was 14 inhibited by the crude extract at minimum inhibitory concentration (MIC) of 5μl/mL. Extracellular 15 conductivity, pH and the wet, dry weight of P. nicotianae's mycelia, were significantly different 16 after treated with different concentrations of the crude extract and the deformity and perforation of 17 treated P. nicotianae's hyphae can be observed in scanning electron microscope (SEM) analysis. 18Proteome characterizations of the crude extract were used as supplementary proofs that further 19 evaluated FUP of Ba168. We then identified strain Ba168 as B. amyloliquefaciens by its genetic 20 and phenotypic characteristics. Field assays comparatively evaluated TBS control efficacy of these 21PGPRs and agrochemicals. Pooling analysis of the results showed that the biocontrol efficacy of 22Ba168 preparation is only lower than Mixture of Propamocarb hydrochloride and Azoxystrobin 23 (MPA) but better than other tested subjects. Although the existence of differences in biocontrol 24 efficacy, PGPR preparations effectively reduced the disease index of tobacco. 25

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Biological control of plant pathogens by Bacillus species

Cited by 552 publications

References 122 publications

Bacillusspecies in soil as a natural resource for plant health and nutrition

Bacillusspecies in soil as a natural resource for plant health and nutrition

Cyanide degradation and antagonistic potential of endophytic Bacillus subtilis strain BEB1 from Bougainvillea spectabilis Willd

Biocontrol of PGPR strain Bacillus amyloliquefaciens Ba168 against Phytophthora nicotianae on tobacco

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