Responses to abiotic environmental stresses among phylloplane and soil isolates of Beauveria bassiana from two holm oak ecosystems

Fernández-Bravo, María; Garrido‐Jurado, Inmaculada; Valverde-García, Pablo; Enkerli, J.; Quesada‐Moraga, Enrique

doi:10.1016/j.jip.2016.09.007

Cited by 26 publications

(47 citation statements)

References 58 publications

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“…The detrimental effects of UV exposure on conidia seem to be mainly caused by UV‐B radiation . This fraction of the solar spectrum is therefore used to evaluate UV‐protective substances and the tolerance of fungus isolates to solar exposure …”

Section: Methodsmentioning

confidence: 99%

Efficiency of natural substances to protect Beauveria bassiana conidia from UV radiation

Kaiser

Bacher

Mène-Saffrané

et al. 2018

Pest Management Science

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This study shows that it is possible to increase the persistence of B. bassiana spores under exposure to UV radiation by formulation with natural UV-protective additives. UV protectants might, therefore, increase the efficacy of entomopathogenic fungi as biocontrol agents in open field applications. © 2018 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Section: Methodsmentioning

confidence: 99%

Efficiency of natural substances to protect Beauveria bassiana conidia from UV radiation

Kaiser

Bacher

Mène-Saffrané

et al. 2018

Pest Management Science

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show abstract

“…These two parameters probably increased the chance to isolate highly virulent pathogens against med y. Previous studies have proved that the ability of entomopathogenic fungi to tolerate extreme environmental factors in the eld (UV-radiation, water stress, and temperature variation) is correlated with the natural habitat and the origin of these microorganisms [6,14,17]. Accordingly, the development of an effective mycoinsecticide requires the selection of highly virulent isolates with high tolerance to the climatic conditions of the application area.…”

Section: Discussionmentioning

confidence: 99%

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (C. capitata) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution

HALLOUTI

Hamza

Zahidi

et al. 2020

Preprint

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Background: Studying the ecology of biocontrol-agents is a prerequisite to effectively control medfly (Ceratitis capitata (Diptera: Tephritidae)) with entomopathogenic fungi. In this context, factors affecting the occurrence and distribution of medfly-associated entomopathogenic-fungi were studied. Soil samples (22) were collected from natural and cultivated areas of Souss-region Morocco. Results: A total of 260 fungal isolates belonging to 22 species and 10 genera were obtained by using medfly pupae as bait. Medfly-associated fungi were detected in all studied soils and pupae infection percentages ranged from 3.33% to 48%. Two genera, Fusarium and Beauveria were the most frequent with 83 isolates (32%) and 50 isolates (19.23%) respectively. Pathogenicity test of isolated species against medfly pupae showed high mortality rates up to 91% for some strains. Principal component analysis (PCA) demonstrated a strong influence of origin, physical, and chemical properties of soil on the abundance of these fungi. In general, medfly-associated fungi were more abundant in soils with moderate pH (7.5 to 8) having high sand and organic content. High relative humidity negatively influenced the abundance of these fungi. Both factors directly affected the fungal infection percentages in pupae. The response of fungi to these parameters varied among species. According to principal component analysis (PCA), the soils of argan fields and forests were more suitable for the development of medfly-associated fungi than citrus orchards.Conclusions: These results guide identifying suitable soils for the effective application of entomopathogenic fungi as biological control agents. In summary, isolated indigenous strains seem to be a promising option to control C. capitata.

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“…is correlated with the natural habitat and the origin of these microorganisms [6,14,17]. Accordingly, the development of an effective mycoinsecticide requires the selection of highly virulent isolates with high tolerance to the climatic conditions of the application area.…”

Section: Discussionmentioning

confidence: 99%

“…Soil provides a nutritious environment for entomopathogenic fungi and protection against climatic conditions. However, the parameters of this medium such as texture, pH, electrical conductivity, relative humidity, carbon/nitrogen ratio, and organic matter content directly affect the availability and abundance of fungal species [17][18][19]. Several studies have reported the effect of soil type, climatic factors, and agricultural practices on the distribution of entomopathogenic fungi [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (Ceratitis capitata (Diptera: Tephritidae)) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution 

HALLOUTI

Hamza

Zahidi

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Studying the ecology of biocontrol-agents is a prerequisite to effectively control medfly (Ceratitis capitata (Diptera: Tephritidae)) with entomopathogenic fungi. In this context, factors affecting the occurrence and distribution of medfly-associated entomopathogenic-fungi were studied. Soil samples (22) were collected from natural and cultivated areas of Souss-region Morocco. Results: A total of 260 fungal isolates belonging to 22 species and 10 genera were obtained by using medfly pupae as bait. Medfly-associated fungi were detected in all studied soils and pupae infection percentages ranged from 3.33% to 48%. Two genera, Fusarium and Beauveria were the most frequent with 83 isolates (32%) and 50 isolates (19.23%) respectively. Pathogenicity test of isolated species against medfly pupae showed high mortality rates up to 91% for some strains. Principal component analysis (PCA) demonstrated a strong influence of origin, physical, and chemical properties of soil on the abundance of these fungi. In general, medfly-associated fungi were more abundant in soils with moderate pH (7.5 to 8) having high sand and organic content. High relative humidity negatively influenced the abundance of these fungi. Both factors directly affected the fungal infection percentages in pupae. The response of fungi to these parameters varied among species. According to principal component analysis (PCA), the soils of argan fields and forests were more suitable for the development of medfly-associated fungi than citrus orchards. Conclusions: These results guide identifying suitable soils for the effective application of entomopathogenic fungi as biological control agents. In summary, isolated indigenous strains seem to be a promising option to control C. capitata.

show abstract

Responses to abiotic environmental stresses among phylloplane and soil isolates of Beauveria bassiana from two holm oak ecosystems

Cited by 26 publications

References 58 publications

Efficiency of natural substances to protect Beauveria bassiana conidia from UV radiation

Efficiency of natural substances to protect Beauveria bassiana conidia from UV radiation

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (C. capitata) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (Ceratitis capitata (Diptera: Tephritidae)) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution

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Responses to abiotic environmental stresses among phylloplane and soil isolates of Beauveria bassiana from two holm oak ecosystems

Cited by 26 publications

References 58 publications

Efficiency of natural substances to protect Beauveria bassiana conidia from UV radiation

Efficiency of natural substances to protect Beauveria bassiana conidia from UV radiation

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (C. capitata) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (Ceratitis capitata (Diptera: Tephritidae)) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution&nbsp;

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Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (Ceratitis capitata (Diptera: Tephritidae)) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution