Insect Pathogenic Fungi as Endophytes

Moonjely, Soumya; Barelli, Larissa; Bidochka, Michael

doi:10.1016/bs.adgen.2015.12.004

Cited by 92 publications

(64 citation statements)

References 126 publications

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“…Beauveria bassiana acts as an endophyte in about 25 plant species, contributing to the control of pests and fungal plant pathogens (McKinnon et al 2017;Vega 2018). As a fungal endophyte and epiphyte, it colonizes leaves and shoots in addition to plant roots making plants more resistant to insects (Klieber and Reineke 2016;Ramakuwela et al 2020), and also successfully protects plants from microbial pathogens by suppressing disease-causing agents or increasing plant defense responses (Moonjely et al 2016). Similarly, Lecanicillium also prevents fungal disease by growing on the surface of leaves, limiting available nutrients and producing antimicrobial compounds in addition to inducing plant responses while colonizing plant roots (Moonjely et al 2016).…”

Section: Entomopathogenic Fungi-short Descriptionmentioning

confidence: 99%

Entomopathogenic fungi: unconventional applications

Litwin

Nowak

Różalska

2020

Rev Environ Sci Biotechnol

179

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Entomopathogenic fungi (EPF) are microorganisms that cause fatal diseases of arthropods. The infection process involves several stages that consist of direct contact of the fungus with the surface of the cuticle of the attacked insect. The factors that determine the effectiveness of the infection process include lytic enzymes, secondary metabolites, and adhesins produced by EPF. Because of their high insecticidal effectiveness, these fungi are commonly used as biopesticides in organic farming. As the environment and farmlands are contaminated with many compounds of anthropogenic origin (e.g., pesticides), the effects of these toxic compounds on EPF and the mechanisms that affect their survival in such a toxic environment have been studied in recent years. This review presents information on the capacity of EPF to remove toxic contaminants, including alkylphenols, organotin compounds, synthetic estrogens, pesticides and hydrocarbons. Moreover, these fungi produce numerous secondary metabolites that can be potentially used in medicine or as antimicrobial agents. Despite their huge potential in biocontrol processes, the use of EPF has been underestimated due to a lack of knowledge on their abilities. In our work, we have presented the available data on the possibilities of the additional and unconventional use of these microorganisms.

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Section: Entomopathogenic Fungi-short Descriptionmentioning

confidence: 99%

Entomopathogenic fungi: unconventional applications

Litwin

Nowak

Różalska

2020

Rev Environ Sci Biotechnol

179

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“…They are rhizosphere competent, exist as endophytes and exhibit “mycorrhizal” characteristics, transferring nitrogen from infected insects to host plants, from which they in return extract photosynthate carbon . Exactly how these fungi evolved to kill arthropods (insects, ticks and mites) is unclear, although it is hypothesized that they originated as plant symbionts and their host range broadened to exploiting insects as a nitrogen source while maintaining mutualistic plant endosymbiosis . Strains have clearly evolved different degrees of specificity and virulence to insects, but they collectively target the majority of insects, if not all insects, including coleopterans, hemipterans, and orthopterans with few known bacterial or viral diseases.…”

Section: Introductionmentioning

confidence: 99%

Genetically engineering better fungal biopesticides

Lovett

Leger

2017

Pest Management Science

111

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Microbial insect pathogens offer an alternative means of pest control with the potential to wean us off our heavy reliance on chemical pesticides. Insect pathogenic fungi play an important natural role in controlling disease vectors and agricultural pests. Most commercial products employ Ascomycetes in the genera Metarhizium and Beauveria. However, their utilization has been limited by inconsistent field results as a consequence of sensitivity to abiotic stresses and naturally low virulence. Other naturally occurring biocontrol agents also face these hurdles to successful application, but the availability of complete genomes and recombinant DNA technologies have facilitated design of multiple fungal pathogens with enhanced virulence and stress resistance. Many natural and synthetic genes have been inserted into entomopathogen genomes. Some of the biggest gains in virulence have been obtained using genes encoding neurotoxic peptides, peptides that manipulate host physiology and proteases and chitinases that degrade the insect cuticle. Prokaryotes, particularly extremophiles, are useful sources of genes for improving entomopathogen resistance to ultraviolet (UV) radiation. These biological insecticides are environmentally friendly and cost-effective insect pest control options. © 2017 Society of Chemical Industry.

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“…Beauveria is one of the most ubiquitous anamorphic genera of entomopathogenic fungi, and includes ecologically and economically important species (Posada & Vega 2005, Ownley et al 2008, Roy et al 2010; however, some Beauveria are endophytes or saprobes (Vega et al 2008, Moonjely et al 2016. Members of Beauveria have branched, penicillate or trichodermoid conidiophores.…”

Section: Introductionmentioning

confidence: 99%

Beauveria majiangensis, a new entomopathogenic fungus from Guizhou, China

et al. 2018

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Beauveria majiangensis sp. nov., a fungal grub parasite, isolated from a blueberry farm in Guizhou Province, China, is herein described based on morphological and phylogenetic evidence. Beauveria majiangensis differs from other Beauveria species based on its indeterminate, denticulate rachis, cylindrical or sometimes subspherical conidiogenous cells, and ellipsoidal conidia. Phylogenetic analyses based on four loci (TEF, RPB1, Bloc, and ITS) strongly support that this strain is distinct within Beauveria.

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Insect Pathogenic Fungi as Endophytes

Cited by 92 publications

References 126 publications

Entomopathogenic fungi: unconventional applications

Entomopathogenic fungi: unconventional applications

Genetically engineering better fungal biopesticides

Beauveria majiangensis, a new entomopathogenic fungus from Guizhou, China

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