Understanding the mechanism of biological control of passionfruit bacterial blight promoted by autochthonous phylloplane bacteria

Halfeld-Vieira, B. de A.; Silva, Washington Luis Manduca da; Schurt, Daniel Augusto; Ishida, A. K. N.; Souza, G. R. de; Nechet, K. de L.

doi:10.1016/j.biocontrol.2014.09.011

Cited by 23 publications

(12 citation statements)

References 38 publications

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“…As PGPR can improve plant health by acting as antagonists of pathogens by mechanisms such as solubilizing Fe and P, N fixation, antibiotic, and hormone productions, some evidences show that competition for Fe, N, and carbohydrates on leaves could limit the conditions for infection processes (Halfeld-vieira et al 2015;Parangan-Smith and Lindow 2013;Smith et al 2013). Siderophore production by PGPR confers them competitive advantages to colonize roots and exclude other microorganisms from this ecological niche.…”

Section: Nutrient Competition and Siderophore Productionmentioning

confidence: 99%

“…Each structure was redrawn from Zheng and Nolan (2012), Hider and Kong (2010), and Permark et al (1993) Xanthomonas axonopodis pv. passiflorae, which is explained by competition for Fe and N-compounds on leaves of passion fruit (Halfeld-vieira et al 2015). The catecholic siderophore producer Bacillus subtilis CAS15 significantly inhibited the mycelial growth of 15 different plant pathogens of Fusarium spp., Colletotrichum spp., Pythium spp., Magnaporthe spp., and Phytophthora spp.…”

Section: Nutrient Competition and Siderophore Productionmentioning

confidence: 99%

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Use of Plant Growth-Promoting Rhizobacteria as Biocontrol Agents: Induced Systemic Resistance Against Biotic Stress in Plants

Salomón

Pinter

Píccoli

2017

Microbial Applications Vol.2

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Plant growth-promoting rhizobacteria (PGPR) are free-living bacteria able to colonize roots and soil around them that have a positive effect on plant growth, development, and health. One of the mechanisms by which PGPR exert a beneficial effect involves the capacity to control growth of deleterious organisms diminishing or preventing their negative effects on plant health and growth. Pathogen biocontrol implicates diverse features of bacteria; one of them is the antagonism that excludes pathogen due to the ability of some bacteria to colonize faster and more effectively a niche, reducing nutrient availability for the deleterious organism. Also some bacteria produce antibiotics, organic compounds that are lethal in low concentration for growth and metabolic activities of other microorganisms. Finally, the ability of bacteria to elicit a defense response in plant, called induced systemic resistance (IRS), involves the induction of synthesis of defense metabolites, but without causing a disease itself, enhancing the plant's defensive capacity. This chapter analyzed and discussed PGPR as biocontrol agent and the possibility to use them as ecological alternative to the use of agrochemicals, since they have been proved in different plant species in order to diminish the damage of pathogen and to reduce losses in crops.

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Section: Nutrient Competition and Siderophore Productionmentioning

confidence: 99%

Section: Nutrient Competition and Siderophore Productionmentioning

confidence: 99%

Use of Plant Growth-Promoting Rhizobacteria as Biocontrol Agents: Induced Systemic Resistance Against Biotic Stress in Plants

Salomón

Pinter

Píccoli

2017

Microbial Applications Vol.2

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“…with a high affinity for iron (Expert & O'Brian, 2012), which limits iron availability to pathogens. Halfeld-Vieira et al (2015) observed the potential of pyoverdine-producing phylloplane bacteria in disease management. However, the effect of these compounds on the population density of X. axonopodis pv.…”

Section: Uso De Pioverdina No Controle Da Mancha Bacteriana Do Maracumentioning

confidence: 99%

Section: Notas Científicasmentioning

confidence: 99%

“…29RR, which was used in a previous study to control passion fruit bacterial blight. This antagonist strain produces pyoverdine that inhibits the Xap-SP growth by restricting iron availability in the culture medium, instead of restricting it by antibiosis (Halfeld-Vieira et al, 2015).First, the 29RR isolate was cultured in test tubes with King's B medium for 48 hours at 27°C (King et al, 1954). Three treatments (T) were performed: T1, King's B medium; T2, King's B medium supplemented with 2 μmol L -1 Fe 2+ ; and T3, King's B medium surface cultured with 1 mL of the 29RR bacterial culture.…”

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confidence: 99%

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Pyoverdine use for the control of passion fruit bacterial blight

Ribeiro

Souza²,

Schurt³

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the effect of a bacterial filtrate containing pyoverdine on the population dynamics of Xanthomonas axonopodis pv. passiflorae, and the severity of passion fruit bacterial blight. The treatments were: King's B medium solution; King's B medium solution with 2 μmol L -1 Fe 2+ supplementation; and King's B medium filtrate containing two concentrations of the siderophore pyoverdine produced by Pseudomonas sp. The filtrate containing pyoverdine at Abs 363 = 0.231 (highest concentration) reduces the number of cells of X. axonopodis pv. passiflorae, and at Abs 363 = 0.115 and Abs = 0.231 significantly reduces the severity of bacterial blight.Index terms: Passiflora edulis, Pseudomonas, Xanthomonas axonopodis pv. passiflorae, phylloplane, siderophore. Passion fruit, Passiflora edulis, is native to Brazil and is widely cultivated for therapeutic use, cosmetic products and, particularly, for juice production. Most passion fruit species are native to Central and South America. The primary biodiversity areas are located in Colombia and Brazil (Ramaiya et al., 2014). Uso de pioverdina no controle da mancha bacteriana do maracujazeiroOne of the most important passion fruit diseases is bacterial blight, which is caused by Xanthomonas axonopodis pv. passiflorae, and represents severe economic losses to farmers (Meletti, 2011).Genetic improvement is one of the most promising methods for controlling the disease in commercial crops (Nakatani et al., 2009;Meletti, 2011); however, it is not efficient to prevent bacterial development (Munhoz et al., 2011).Therefore, biological control should be investigated. Iron is an essential micronutrient for both plants and microorganisms, including bacteria. In ironlimited environments, some bacteria can overcome iron restriction using siderophores, which are ironchelating compounds. Pyoverdines are water-soluble siderophores produced by fluorescent Pseudomonas spp. with a high affinity for iron (Expert & O'Brian, 2012), which limits iron availability to pathogens. Halfeld-Vieira et al. (2015) observed the potential of pyoverdine-producing phylloplane bacteria in disease management. However, the effect of these compounds on the population density of X. axonopodis pv. passiflorae on the phylloplane, and how this potential alteration could affect disease severity remains unknown.The objective of this work was to evaluate the effect of a bacterial filtrate, containing pyoverdine, on the populational dynamics of X. axonopodis pv. The in vivo experiment was carried out using the antagonist isolate Pseudomonas sp. 29RR, which was used in a previous study to control passion fruit bacterial blight. This antagonist strain produces pyoverdine that inhibits the Xap-SP growth by restricting iron availability in the culture medium, instead of restricting it by antibiosis (Halfeld-Vieira et al., 2015).First, the 29RR isolate was cultured in test tubes with King's B medium for 48 hours at 27°C (King et al., 1954). Three treatments (T) were performed: T1, Kin...

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