Antifungal compounds as a mechanism to control Hemileia vastatrix by antagonistic bacteria

Haddad, Fernando; Saraiva, Rodrigo Moreira; Mizubuti, Eduardo S. G.; Romeiro, R. S.; Maffia, Luiz A.

doi:10.1590/s1982-56762013000500004

Cited by 20 publications

(28 citation statements)

References 34 publications

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“…Specific strains of the bacteria Pseudomonas putida , Bacillus megaterium and B. thuringiensis , together with two Fusarium sp. isolates, provide promising levels of antagonism (Haddad et al ., ; Silva et al ., ).…”

Section: Disease Controlmentioning

confidence: 99%

The coffee leaf rust pathogen Hemileia vastatrix: one and a half centuries around the tropics

Talhinhas

Batista

Diniz

et al. 2017

Molecular Plant Pathology

174

191

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Although exhibiting limited genetic polymorphism, the very large genome of H. vastatrix (c. 797 Mbp) conceals great pathological diversity, with more than 50 physiological races. Gene expression studies have revealed a very precocious activation of signalling pathways and production of putative effectors, suggesting that the plant-fungus dialogue starts as early as at the germ tube stage, and have provided clues for the identification of avr genes.

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Section: Disease Controlmentioning

confidence: 99%

The coffee leaf rust pathogen Hemileia vastatrix: one and a half centuries around the tropics

Talhinhas

Batista

Diniz

et al. 2017

Molecular Plant Pathology

174

191

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“…Several in planta experiments on C. arabica grown under controlled conditions (growth chamber and greenhouse) confirmed the capacity of several bacterial antagonists to decrease the spore germination, the disease severity, and the sporulation of H. vastatrix (Shiomi et al, 2006;Bettiol et al, 2007;Silva et al, 2008Silva et al, , 2012Haddad et al, 2013Haddad et al, , 2014Culliao and Barcelo, 2015). Some authors underlined the fact that the treatment was more efficient when applied before the pathogen inoculation (Shiomi et al, 2006;Silva et al, 2012;Haddad et al, 2014), and other studies also demonstrated that the simultaneous applications of some bacterial isolates were as efficient as copper hydroxide in reducing CLR severity (Haddad et al, 2013).…”

Section: Potential Uses As Biocontrol Agentsmentioning

confidence: 90%

“…Another approach that was extensively employed to highlight the biocontrol capacity of bacterial and fungal isolates involved the confrontation of the pathogen either directly with the antagonist (dual culture method) or with the compounds secreted in the culture medium (agar diffusion method). This strategy was successfully employed to demonstrate the ability of some biocontrol agents to inhibit the development of some of the major coffee diseases such as the CLR caused by the fungal pathogen H. vastatrix (Shiomi et al, 2006;Bettiol et al, 2007;Silva et al, 2008Silva et al, , 2012Daivasikamani and Rajanaika, 2009;Haddad et al, 2013) or the coffee wilt disease (CWD) also known as tracheomycosis caused by the fungal pathogen Gibberella xylarioides (Muleta et al, 2007;Mulaw et al, 2010Mulaw et al, , 2013Tiru et al, 2013). This methodology was also used to reveal the microorganisms biocontrol potential toward numerous other phytopathogens including Alternaria alternata, A. solani, Ambrosiella macrospora, Botrytis cinereal, Colletotrichum gloeosporioides, C. coffeicola, Fusarium oxysporum, F. solani, F. verticillioides, Glomerella sp., Macrophomina phaseolina, Myrothecium roridum, Pestalotia longisetula, Phoma sp., Phytophthora capsici, P. meadii, Pythium aphanidermatum, Rhizoctonia solani, and Sclerotinia sclerotiorum (Nair et al, 2002;Mulaw et al, 2013;Bongiorno et al, 2016;Kejela et al, 2016;Monteiro et al, 2017;Ranjini and Raja, 2019;Hoang et al, 2020;Duong et al, 2021) but also some pests such as the coffee berry borer Hypothenemus hampei (Vega et al, 2008), the root knot nematode Meloidogyne incognita (Mekete et al, 2009;Hoang et al, 2020), the burrowing nematode Radopholus duriophilus, and the root lesion nematode Pratylenchus coffeae (Duong et al, 2021), as well as some toxigenic fungi including Aspergillus carbonarius, A. flavus, A. niger, A. ochraceus, and A. westerdijkiae (Masoud and Kaltoft, 2006;Ramos et al, 2010;Djossou et al, 2011;…”

Section: Potential Uses As Biocontrol Agentsmentioning

confidence: 99%

Coffee Microbiota and Its Potential Use in Sustainable Crop Management. A Review

Duong

Marraccini

Maeght

et al. 2020

Front. Sustain. Food Syst.

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Intensive coffee production is accompanied by several environmental issues, including soil degradation, biodiversity loss, and pollution due to the wide use of agrochemical inputs and wastes generated by processing. In addition, climate change is expected to decrease the suitability of cultivated areas while potentially increasing the distribution and impact of pests and diseases. In this context, the coffee microbiota has been increasingly studied over the past decades in order to improve the sustainability of the coffee production. Therefore, coffee associated microorganisms have been isolated and characterized in order to highlight their useful characteristics and study their potential use as sustainable alternatives to agrochemical inputs. Indeed, several microorganisms (including bacteria and fungi) are able to display plant growth-promoting capacities and/or biocontrol abilities toward coffee pests and diseases. Despite that numerous studies emphasized the potential of coffee-associated microorganisms under controlled environments, the present review highlights the lack of confirmation of such beneficial effects under field conditions. Nowadays, next-generation sequencing technologies allow to study coffee associated microorganisms with a metabarcoding/metagenomic approach. This strategy, which does not require cultivating microorganisms, now provides a deeper insight in the coffee-associated microbial communities and their implication not only in the coffee plant fitness but also in the quality of the final product. The present review aims at (i) providing an extensive description of coffee microbiota diversity both at the farming and processing levels, (ii) identifying the “coffee core microbiota,” (iii) making an overview of microbiota ability to promote coffee plant growth and to control its pests and diseases, and (iv) highlighting the microbiota potential to improve coffee quality and waste management sustainability.

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“…• biological control based on Hemileia vastatrix natural enemies, e.g. mycoparasites such as Lecanicillium lecanii [12,40], or antagonistic bacteria such as Pseudomonas putida P286 and Bacillus thuringiensis B157 [16,17]; it can also rely on natural allies of the crop such as benefic endophytes [33,34].…”

Section: Control Of Clrmentioning

confidence: 99%

Modelling coffee leaf rust dynamics to control its spread

Djuikem

Grognard

Wafo

et al. 2021

Math. Model. Nat. Phenom.

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Coffee leaf rust ( CLR ) is one of the main diseases that affect coffee plantations worldwide . It is caused by the fungus Hemileia vastatrix . Damages induce severe yield losses (up to 70% ). Its control mainly relies on cultural practices and fungicides , the latter having harmful ecological impact and important cost . Our goal is to understand the propagation of this fungus in order to propose a biocontrol solution, based on a mycoparasite that inhibits H.~ vastatrix reproduction. We develop and explore a spatio -temporal model that describes CLR propagation in a coffee plantation during the rainy and dry seasons . We show the existence of a solution and prove that there exists two threshold parameters , the dry and rainy basic reproduction numbers , that determine the stability of the equilibria for the dry and rainy season subsystems . To illustrate these theoretical results , numerical simulations are performed , using a non-standard finite method to integrate the pest model . We also numerically investigate the biocontrol impact. We determine its efficiency threshold in order to ensure CLR eradication .

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Antifungal compounds as a mechanism to control Hemileia vastatrix by antagonistic bacteria

Cited by 20 publications

References 34 publications

The coffee leaf rust pathogen Hemileia vastatrix: one and a half centuries around the tropics

The coffee leaf rust pathogen Hemileia vastatrix: one and a half centuries around the tropics

Coffee Microbiota and Its Potential Use in Sustainable Crop Management. A Review

Modelling coffee leaf rust dynamics to control its spread

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