Bioactive Metabolites and Potential Mycotoxins Produced by Cordyceps Fungi: A Review of Safety DOI Creative Commons
Bo Chen, Yanlei Sun,

Feifei Luo

и другие.

Toxins, Год журнала: 2020, Номер 12(6), С. 410 - 410

Опубликована: Июнь 19, 2020

Ascomycete Cordyceps fungi such as C. militaris, cicadae, and guangdongensis have been mass produced on artificial media either food supplements or health additives while the byproducts of culture substrates are largely used animal feed. The safety concerns associated with daily consumption related products still being debated. On one hand, known compounds from these adenosine analogs cordycepin pentostatin demonstrated different beneficial pharmaceutical activities but also dose-dependent cytotoxicities, neurological toxicities toxicological effects in humans animals. other possibility mycotoxin production by has not completely ruled out. In contrast to a few metabolites identified, an array biosynthetic gene clusters (BGCs) encoded each genome potential produce plethora yet unknown secondary metabolites. Conservation analysis BGCs suggests that PR-toxin trichothecenes might be fungi. Future elucidation functionally BGCs, in-depth assessments metabolite bioactivity chemical safety, will only facilitate safe use human alternative medicine, benefit To corroborate long record traditional future efforts exploration for purposes.

Язык: Английский

Fungal secondary metabolism: regulation, function and drug discovery DOI
Nancy P. Keller

Nature Reviews Microbiology, Год журнала: 2018, Номер 17(3), С. 167 - 180

Опубликована: Дек. 10, 2018

Язык: Английский

Процитировано

1076

The use of fungal entomopathogens as endophytes in biological control: a review DOI

Vega

Mycologia, Год журнала: 2018, Номер 110(1), С. 4 - 30

Опубликована: Янв. 2, 2018

Fungal entomopathogens have been proposed as environmentally friendly alternatives to chemical control. Unfortunately, their effectiveness continues be limited by susceptibility ultraviolet (UV) light and low moisture. A relatively recent development, the use of fungal endophytes, might overcome traditional obstacles impeding widespread adoption also provide a novel alternative for management insect pests plant pathogens. In addition, some could function biofertilizers. Eighty-five papers covering 109 individual entomopathogen studies involving 12 species in six genera are reviewed. Thirty-eight 19 families were studied, with maize, common bean, tomato being most investigated. Of 85 papers, 39 (46%) examined effects endophytism on 33 17 eight orders. Thirty-four (40%) response endophytism, corresponding 20 species. Various inoculation techniques (e.g., foliar sprays, soil drenching, seed soaking, injections, etc.) effective introducing but colonization appears localized ephemeral. The field pathology will not substantially profit from dozens additional attempting introduce into wider array plants, without understand mechanisms underlying responses such consequent This review presents several areas that should receive focused attention increase probability success making this technology an

Язык: Английский

Процитировано

375

Entomopathogenic fungi: unconventional applications DOI Creative Commons
Anna Litwin, Monika Nowak, Sylwia Różalska

и другие.

Reviews in Environmental Science and Bio/Technology, Год журнала: 2020, Номер 19(1), С. 23 - 42

Опубликована: Фев. 10, 2020

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

Язык: Английский

Процитировано

221

A life-and-death struggle: interaction of insects with entomopathogenic fungi across various infection stages DOI Creative Commons

Meiqi Ma,

Jing Luo, Chong Li

и другие.

Frontiers in Immunology, Год журнала: 2024, Номер 14

Опубликована: Янв. 8, 2024

Insects constitute approximately 75% of the world’s recognized fauna, with majority species considered as pests. Entomopathogenic fungi (EPF) are parasitic microorganisms capable efficiently infecting insects, rendering them potent biopesticides. In response to infections, insects have evolved diverse defense mechanisms, prompting EPF develop a variety strategies overcome or circumvent host defenses. While interaction mechanisms between and is well established, recent findings underscore that their interplay more intricate than previously thought, especially evident across different stages infection. This review primarily focuses on insect strategies, centered around three infection stages: (1) Early stage: involving pre-contact detection avoidance behavior in along induction behavioral responses upon contact cuticle; (2) Penetration intra-hemolymph growth initiation cellular humoral immune functions while symbiotic microbes can further contribute resistance; (3) Host insect’s death ultimate confrontation pathogens insects. Infected strive separate themselves from healthy population, rely infected spread new hosts. Also, we discuss novel pest management strategy underlying cooperation disturbing system. By enhancing our understanding insect, this provides perspectives for EPF-mediated developing effective fungal insecticides.

Язык: Английский

Процитировано

45

Genetically engineering better fungal biopesticides DOI
Brian Lovett, Raymond J. St. Leger

Pest Management Science, Год журнала: 2017, Номер 74(4), С. 781 - 789

Опубликована: Сен. 14, 2017

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

Язык: Английский

Процитировано

128

Lipid biology in fungal stress and virulence: Entomopathogenic fungi DOI
Nemat O. Keyhani

Fungal Biology, Год журнала: 2017, Номер 122(6), С. 420 - 429

Опубликована: Июль 19, 2017

Язык: Английский

Процитировано

114

Secondary metabolites from hypocrealean entomopathogenic fungi: novel bioactive compounds DOI
Liwen Zhang,

Opemipo Esther Fasoyin,

István Molnár

и другие.

Natural Product Reports, Год журнала: 2020, Номер 37(9), С. 1181 - 1206

Опубликована: Янв. 1, 2020

Covering: 2014 up to the third quarter of 2019 Entomopathogens constitute a unique, specialized trophic subgroup fungi, most whose members belong order Hypocreales (class Sordariomycetes, phylum Ascomycota). These Hypocrealean Entomopathogenic Fungi (HEF) produce large variety secondary metabolites (SMs) and their genomes rank highly for number predicted, unique SM biosynthetic gene clusters. SMs from HEF have diverse roles in insect pathogenicity as virulence factors by modulating various interactions between producer fungus its host. In addition, these also defend carcass prey against opportunistic microbial invaders, mediate intra- interspecies communication, mitigate abiotic biotic stresses. Thus, contribute role commercial biopesticides context integrated pest management systems, provide lead compounds development chemical pesticides crop protection. bioactive underpin widespread use certain nutraceuticals traditional remedies, allowed modern pharmaceutical industry repurpose some molecules life-saving human medications. Herein, we survey structures biological activities described HEF, summarize new information on fungal virulence.

Язык: Английский

Процитировано

95

Biology and applications of endophytic insect-pathogenic fungi DOI Creative Commons
Margaret Branine, Anna Bazzicalupo, Sara Branco

и другие.

PLoS Pathogens, Год журнала: 2019, Номер 15(7), С. e1007831 - e1007831

Опубликована: Июль 18, 2019

Endophytic insect-pathogenic fungi (EIPF) are both plant mutualists and insect pathogens, living inside tissues without causing any symptoms to their partner while also parasitizing killing insects [1].These interactions can occur simultaneously lead the demise of pests.The ecology evolution EIPF still not fully understood; however, several studies have investigated diversity [2,3], mechanisms infection [4,5], nature plant-insect-fungus relationships [6,7].These multikingdom particular interest only because an ideal model for understanding symbioses, but they widely used practical applications particularly relevant agricultural pest control [8].Here, we provide overview on by reviewing what is currently known about evolution, ecology, colonization.We address real-world identify possible research directions field in future.

Язык: Английский

Процитировано

77

The Entomopathogenic Fungus Beauveria bassiana Shows Its Toxic Side within Insects: Expression of Genes Encoding Secondary Metabolites during Pathogenesis DOI Creative Commons
Nicolás Pedríni

Journal of Fungi, Год журнала: 2022, Номер 8(5), С. 488 - 488

Опубликована: Май 7, 2022

Entomopathogenic fungi are extensively used for the control of insect pests worldwide. Among them, Beauveria bassiana (Ascomycota: Hypocreales) produce a plethora toxic secondary metabolites that either facilitate fungal invasion or act as immunosuppressive compounds. These toxins have different chemical natures, such nonribosomal peptides and polyketides. Even though their precise role is poorly understood, they usually linked to virulence. produced by expression gene clusters encoding various proteins needed biosynthesis. Each cluster includes synthetases (NRPS), polyketides (PKS), hybrid NRPS–PKS genes. The aim this review summarize information available from transcriptomics quantitative PCR studies related B. NRPS PKS genes inside insects infection progresses; host immune response, help understand mechanisms these trigger virulence factors, antimicrobials, immunosuppressives within context fungus–insect interaction.

Язык: Английский

Процитировано

50

Fungal infection of insects: molecular insights and prospects DOI Open Access
Hong Song, Junmei Shang,

Yaneli Sun

и другие.

Trends in Microbiology, Год журнала: 2023, Номер 32(3), С. 302 - 316

Опубликована: Сен. 29, 2023

Язык: Английский

Процитировано

37