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Altoé LSC, de Araújo Costa E, Tavares GP, Rocha MS, Queiroz JHD, Gonçalves JBC, de Figueiredo SG, de Araújo JV. On the interactions involving serine proteases obtained from Monacrosporium thaumasium (Ascomycota: Orbiliomycetes) and deoxyribonucleic acid (DNA): biological macromolecules in action. Arch Microbiol 2023; 205:208. [PMID: 37103635 DOI: 10.1007/s00203-023-03551-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/28/2023] [Accepted: 04/13/2023] [Indexed: 04/28/2023]
Abstract
The use of force spectroscopy approaches performed with optical tweezers can be very useful in determining the binding modes and the physical chemistry of DNA interactions with ligands, from small drugs to proteins. Helminthophagous fungi, on the other hand, have important enzyme secretion mechanisms for various purposes, and the interactions between such enzymes and nucleic acids are very poorly studied. Therefore, the main goal of the present work was to investigate, at the molecular level, the mechanisms of interaction between fungal serine proteases and the double-stranded (ds) DNA molecule. Experimental assays performed with this single molecule technique consist in exposing different concentrations of the protease of this fungus to dsDNA until saturation while monitoring the changes on the mechanical properties of the macromolecular complexes formed, from where the physical chemistry of the interaction can be deduced. It was found that the protease binds strongly to the double-helix, forming aggregates and changing the persistence length of the DNA molecule. The present work thus allowed us to infer information at the molecular level on the pathogenicity of these proteins, an important class of biological macromolecules, when applied to a target specimen.
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Affiliation(s)
| | - Ethe de Araújo Costa
- Departamento de Física, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Márcio Santos Rocha
- Departamento de Física, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - José Humberto de Queiroz
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Suely Gomes de Figueiredo
- Departamento de Ciências Fisiológicas, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
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Ocampo-Gutiérrez AY, Hernández-Velázquez VM, Aguilar-Marcelino L, Cardoso-Taketa A, Zamilpa A, López-Arellano ME, González-Cortázar M, Hernández-Romano J, Reyes-Estebanez M, Mendoza-de Gives P. Morphological and molecular characterization, predatory behaviour and effect of organic extracts of four nematophagous fungi from Mexico. FUNGAL ECOL 2021. [DOI: 10.1016/j.funeco.2020.101004] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Wang B, Zhang N, Gong PT, Li J, Yang J, Zhang X, Cai K. Effect of temperature, pH, physical and chemical factors on germination rate of the chlamydospores of the nematophagous fungus Duddingtonia flagrans. FEMS Microbiol Lett 2020; 366:5584339. [PMID: 31598721 DOI: 10.1093/femsle/fnz212] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 10/07/2019] [Indexed: 11/13/2022] Open
Abstract
This study mainly investigated the effects of environmental factors on the germination/dormancy, sporulation and resistance of Duddingtonia flagrans chlamydospores. Results showed that the germination temperature of chlamydospores was >10°C and ≤35°C. After the chlamydospores were treated at -20, -40 and -80°C for 12-24 h, they still had the ability to germinate. The chlamydospores germinated at pH 3-13 but did not germinate at pH 1-2 and pH 14. The chlamydospores could tolerate ultraviolet rays for 720 min, but visible light irradiation for 24 h significantly reduced their germination rate. The chlamydospores did not germinate under anaerobic conditions. After the chlamydospores were cultured on water agar (WA) containing 5, 10 and 20% NaCl, their germination rate was significantly inhibited. Once NaCl was removed, the chlamydospores almost completely recovered their germination ability. Among the nine kinds of additives used in the study, 0.3% arginine significantly promoted spore germination (P < 0.05) but 1% trehalose and 1% glycerine significantly inhibited spore germination during incubation from 24 h to 48 h (P < 0.05). This work indicated that D. flagrans chlamydospores are highly resistant to environmental variations and so could be used for biocontrol of animal parasites.
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Affiliation(s)
- Bobo Wang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Nan Zhang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Peng-Tao Gong
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jianhua Li
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Ju Yang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xichen Zhang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Kuizheng Cai
- College of Life Science Engineering, Northwest Minzu University, Lanzhou 730030, China
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4
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Canhão-Dias M, Paz-Silva A, Madeira de Carvalho LM. The efficacy of predatory fungi on the control of gastrointestinal parasites in domestic and wild animals-A systematic review. Vet Parasitol 2020; 283:109173. [PMID: 32634679 DOI: 10.1016/j.vetpar.2020.109173] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Gastrointestinal parasites like nematodes are associated with significant impacts on animal health, causing poor growth rates, diseases and even death. Traditional parasite control includes the use of anthelmintic drugs, albeit being associated with drug resistance and ecotoxicity. In the last decade, biological control of parasites using nematophagous or predatory fungi has been increasingly studied, although systematic evidence of its efficacy is still lacking. The aim of this work was to assess the evidence of efficacy of nematophagous fungi in the control of nematodes and other gastrointestinal parasites in different animal species. METHODS Using the PICO method (Population, Intervention, Comparison and Outcomes), we performed a systematic review on the subject to search for original papers published between January 2006 and October 2019, written in English, and indexed in PubMed/Medline. Medical Subject Headings (MeSH) terms were used in the syntax. Papers were selected for detailed review based on title and abstract. Inclusion and exclusion criteria were applied, and relevant data were collected from the remaining papers. RESULTS The literature search retrieved 616 papers. Eighty-nine were submitted to a detailed review. In the end, 53 papers were included in the analysis. The studies were very heterogeneous, using different fungi, doses, frequency of administration, duration of treatment, host animals, and target parasites. Considering the 53 papers, 44 studies (83 % of the interventions) showed efficacy, with only 9 studies (17 %) showing no significant differences when compared to control. CONCLUSION With the increasing hazards of drug resistance and ecotoxicity, biological control with predatory fungi stands out as a good tool for future parasite management, whether as a complementary treatment or as an alternative to standard parasite control.
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Affiliation(s)
- M Canhão-Dias
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - A Paz-Silva
- Control of Parasites Group (COPAR, GI-2120), Department of Animal Pathology, Faculty of Veterinary, University of Santiago de Compostela, Lugo, Spain
| | - L M Madeira de Carvalho
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.
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Braga FR, Ferraz CM, da Silva EN, de Araújo JV. Efficiency of the Bioverm ® ( Duddingtonia flagrans) fungal formulation to control in vivo and in vitro of Haemonchus contortus and Strongyloides papillosus in sheep. 3 Biotech 2020; 10:62. [PMID: 32030331 PMCID: PMC6977787 DOI: 10.1007/s13205-019-2042-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 12/27/2019] [Indexed: 10/25/2022] Open
Abstract
The objective of the present work was to evaluate the efficiency of Bioverm® fungal formulation (Duddingtonia flagrans-AC001) in controlling Haemonchus contortus and Strongyloides papillosus in sheep. In vitro predation tests were carried out in Petri dishes containing agar culture medium 2%. Four experimental groups were formed, with five replicates each: Group 1: 1 g of Bioverm ® and 1000 third-stage larvae (L3) of H. contortus; Group 2: 1000 L3 of H. contortus; Group 3: 1 g of Bioverm ® and 1000 L3 of S. papillosus; and Group 4: 1000 L3 of S. papillosus. In the in vivo tests, twelve 11-month-old sheep males positive for H. contortus were used. The animals were sorted in two groups (treatment and control), based on fecal egg counts (eggs per gram, EPG). Each group comprised six animals: treatment group-each animal received orally 100 g of Bioverm ® ; and control group-each animal received orally 100 g of rice. Subsequently, feces from these animals were collected at 12, 24, 36, 48, 60, 72, 84, and 96 h after Bioverm ® administration. In vitro results demonstrate that D. flagrans kept its predatory activity with 91.5% of mean reduction percentage of L3. After the passage test, Bioverm ® presented efficacy already after 12 h of its administration and kept similar results for 60 h. Bioverm® fungal formulation (D. flagrans-AC001) was efficient in reducing the population of H. contortus and S. papillosus under laboratory conditions in sheep feces. However, further studies are needed under natural conditions of ruminant grazing to prove the efficiency of this product.
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Affiliation(s)
- Fábio Ribeiro Braga
- Laboratório de Parasitologia Experimental e Controle Biológico, Universidade Vila Velha, Vila Velha, Brazil
| | - Carolina Magri Ferraz
- Laboratório de Parasitologia Experimental e Controle Biológico, Universidade Vila Velha, Vila Velha, Brazil
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Wang BB, Zhang N, Gong PT, Li JH, Yang J, Zhang HB, Zhang XC, Cai KZ. Morphological variability, molecular phylogeny, and biological characteristics of the nematophagous fungus Duddingtonia flagrans. J Basic Microbiol 2019; 59:645-657. [PMID: 30900744 DOI: 10.1002/jobm.201800610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/04/2019] [Accepted: 03/09/2019] [Indexed: 11/08/2022]
Abstract
This study aims to investigate the molecular phylogenetic analysis, morphological variability, nematode-capturing ability, and other biological properties of Chinese Duddingtonia flagrans isolates. We isolated 13 isolates of D. flagrans and found features that have never been reported before, such as two to three septa incluing club-shaped conidia. Meanwhile, we conducted molecular phylogenetic analysis of the seven isolates and tested the radical growth of the isolates under different pH values, temperatures, and media. The capturing ability against infective larvae (L3) of Cooperia spp. in yak was detected in vitro. Finally, one isolate was selected for scanning electron microscopy (SEM) to investigate the trap formation process. The fungal sequence was obtained and submitted to GenBank (Accession no. KY288614.1, KU881774.1, KP257593.1, KY419119.1, MF488979.1, MF488980.1, and MF488981.1), and the tested isolates were identified as D. flagrans. Except for three isolates, the radial growth of the other isolates on 2% corn meal agar and 2% water agar exhibited faster growth than on other media. The fungus could not grow at 10 and 40°C but grew within 11 to 30°C. Moreover, it did not grow at pH 1-3 and 13-14, but instead at pH 4-12. In the in vitro experimental, L3s were reduced by 94.36%, 88.15%, and 91.04% for SDH035, DH055, and F088, respectively. SEM results showed that at 8 hr post addition of nematodes, some of the latter were captured. In the later stages of the interaction of the fungus with nematodes, a large number of chlamydospores were produced, especially on the predation trap. Results of the present study provided information about the molecular phylogenetic analysis, morphological variability, nematode-capturing ability, and other biological properties of Chinese Arthrobotrys flagrans isolates before administering them for biocontrol.
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Affiliation(s)
- Bo-Bo Wang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Nan Zhang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Peng-Tao Gong
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jian-Hua Li
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Ju Yang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Hong-Bo Zhang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xi-Chen Zhang
- Key Laboratory of Zoonosis Research by Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Kui-Zheng Cai
- College of Life Science Engineering, Northwest Minzu University, Lanzhou, China
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Coadministration of Nematophagous Fungi for Biological Control over Nematodes in Bovine in the South-Eastern Brazil. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2934674. [PMID: 29780820 PMCID: PMC5892246 DOI: 10.1155/2018/2934674] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 01/19/2018] [Accepted: 02/20/2018] [Indexed: 11/18/2022]
Abstract
This study compared the coadministration among the three nematode predatory fungi, Duddingtonia flagrans, Monacrosporium thaumasium, and Arthrobotrys robusta, in the biological control of cattle gastrointestinal nematodiasis in comparison with the use of the fungus D. flagrans alone. Five groups consisting of eight Girolando heifers were kept in paddocks of Brachiaria decumbens for six months. Each heifer received 1 g/10 kg of pellets containing the fungi (0.2 g of fungus/10 kg b.w.). Group 1 (G1) received pellets with D. flagrans and M. thaumasium in coadministration, G2 received D. flagrans and A. robusta, G3 received M. thaumasium, A. robusta, and D. flagrans, and G4 received the fungus D. flagrans alone. Group 5 (control) received pellets without fungi. The monthly mean of fecal egg count (FEC) of Groups 1, 2, 3, and 4 were 93.8, 85.3, 82.7, and 96.4% smaller than the mean of control group. The treatments with pellets containing D. flagrans or D. flagrans + M. thaumasium produced significantly better results than the D. flagrans + A. robusta or the combination of the three fungi. The associations which include A. robusta were less efficient in this study than D. flagrans alone or associated with M. thaumasium.
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8
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Vilela VLR, Feitosa TF, Braga FR, Vieira VD, Lucena SCD, Araújo JVD. Control of sheep gastrointestinal nematodes using the combination of Duddingtonia flagrans and Levamisole Hydrochloride 5. ACTA ACUST UNITED AC 2018; 27:27-32. [PMID: 29641796 DOI: 10.1590/s1984-296120180011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 02/05/2018] [Indexed: 11/21/2022]
Abstract
The objective was to evaluate the action of D. flagrans pellets in association with Levamisole Hydrochloride 5% for controlling sheep gastrointestinal nematodes in the northeastern Brazil. Three groups of six sheep each were formed: group 1 received 3 g of the pellets (0.6 g of D. flagrans mycelium) for each 10 kg b.w., twice a week for six months, and deworming with Levamisole Hydrochloride 5% when EPG ≥ 1500; group 2 received a dosage of Levamisole Hydrochloride 5% when EPG ≥ 1500; and group 3 received 3 g of pellets without fungi for each 10 kg b.w., twice a week for six months. EPG counts, larval cultures, packed cell volume (PCV) and weighing were performed every 15 days; monthly, samples of grass from each paddock were collected. The mean EPG of the groups began to statistically differ from day 30 (p < 0.05). Group 1 required less deworming with Levamisole Hydrochloride 5% and showed superiority of PCV values throughout the experiment (p < 0.05). There was a significant reduction (p < 0.05) in L3 recovery in the group 1 paddock from day 30 onwards. The use of D. flagrans pellets in association with Levamisole Hydrochloride 5% was effective for controlling gastrointestinal nematodes.
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Affiliation(s)
| | - Thais Ferreira Feitosa
- Departamento de Medicina Veterinária, Instituto Federal da Paraíba - IFPB, Sousa, PB, Brazil
| | - Fabio Ribeiro Braga
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Viçosa - UFV, Viçosa, MG, Brazil
| | - Vanessa Diniz Vieira
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Campina Grande - UFCG, Patos, PB, Brazil
| | - Samuel Cavalcante de Lucena
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Campina Grande - UFCG, Patos, PB, Brazil
| | - Jackson Victor de Araújo
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Viçosa - UFV, Viçosa, MG, Brazil
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9
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Dai HW, Xu Q, Wang BB, Jia XY, Wan XM, Yang XC, Cai KZ, Liu ZB. In Vitro, in Vivo, and Interaction Studies of Nematophagous FungusArthrobotrys thaumasia(Monacrosporium thaumasium) with the Larvae of Trichostrongylides of Sheep. J Parasitol 2017; 103:692-698. [DOI: 10.1645/16-146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Hong-Wei Dai
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030, China
| | - Qiang Xu
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030, China
| | - Bo-Bo Wang
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030, China
| | - Xiao-Ye Jia
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030, China
| | - Xue-Mei Wan
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030, China
| | - Xue-Cai Yang
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030, China
| | - Kui-Zheng Cai
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030, China
| | - Zhen-Bin Liu
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030, China
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10
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da Silveira WF, Braga FR, de Oliveira Tavela A, dos Santos LF, Domingues RR, Aguiar AR, Ferraz CM, de Carvalho LM, de Hollanda Ayupe T, Zanuncio JC, de Araújo JV. Nematophagous fungi combinations reduce free-living stages of sheep gastrointestinal nematodes in the field. J Invertebr Pathol 2017; 150:1-5. [DOI: 10.1016/j.jip.2017.08.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 08/23/2017] [Accepted: 08/25/2017] [Indexed: 12/23/2022]
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11
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Wang BB, Wang FH, Xu Q, Wang KY, Xue YJ, Ren R, Zeng JQ, Liu Y, Zhang HY, Wang HY, Cai B, Cai KZ, Cao X. In vitroandin vivostudies of the native isolates of nematophagous fungi from China against the larvae of trichostrongylides. J Basic Microbiol 2016; 57:265-275. [DOI: 10.1002/jobm.201600620] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 12/04/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Bo-Bo Wang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | | | - Qiang Xu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Kang-Ying Wang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Yu-Jia Xue
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Rui Ren
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Jia-Qing Zeng
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Yang Liu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Hai-Yan Zhang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Hai-Yu Wang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Bin Cai
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Kui-Zheng Cai
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Xin Cao
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
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12
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Longo Ribeiro Vilela V, Feitosa TF, Braga FR, de Araújo JV, dos Santos A, de Morais DF, de Oliveira Souto DV, Athayde ACR. Coadministration of nematophagous fungi for biological control over gastrointestinal helminths in sheep in the semiarid region of northeastern Brazil. Vet Parasitol 2016; 221:139-43. [DOI: 10.1016/j.vetpar.2016.03.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 03/23/2016] [Accepted: 03/30/2016] [Indexed: 10/22/2022]
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13
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Cai KZ, Liu JL, Liu W, Wang BB, Xu Q, Sun LJ, Chen MY, Zhao MW, Wu JY, Li XS, Yang J, Wei S, Chen CR, Ma ZR, Xu CL, Wang F, Hu QL, Fang WX, Zheng TH, Wang YY, Zhu WL, Li D, Li Q, Zhang C, Cai B, Wang F, Yang ZY, Liu YQ. Screening of different sample types associated with sheep and cattle for the presence of nematophagous fungi in China. J Basic Microbiol 2015; 56:214-28. [DOI: 10.1002/jobm.201500281] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 08/19/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Kui-Zheng Cai
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Jun-Lin Liu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Wei Liu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Bo-Bo Wang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Qiang Xu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Long-Jie Sun
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Ming-Yue Chen
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Ming-Wang Zhao
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Jia-Yan Wu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Xiao-Shan Li
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Jing Yang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Shuan Wei
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Chun-Rong Chen
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Zhong-Ren Ma
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Chun-Lan Xu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Feng Wang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Qian-Lin Hu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Wen-Xiu Fang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Tian-Hui Zheng
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Yue-Ying Wang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Wen-Long Zhu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Dan Li
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Qing Li
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Chao Zhang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Bing Cai
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Fan Wang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Zai-Yun Yang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Yan-Qiu Liu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
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14
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Wang BB, Liu W, Chen MY, Li X, Han Y, Xu Q, Sun LJ, Xie DQ, Cai KZ, Liu YZ, Liu JL, Yi LX, Wang H, Zhao MW, Li XS, Wu JY, Yang J, Wang YY. Isolation and Characterization of China Isolates ofDuddingtonia flagrans, a Candidate of the Nematophagous Fungi for Biocontrol of Animal Parasitic Nematodes. J Parasitol 2015; 101:476-84. [DOI: 10.1645/14-715.1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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15
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Vieira VD, Vilela VLR, Feitosa TF, Athayde ACR, Azevedo SS, Souto DVDO, Silveira GLD, Melo LRBD. Sheep gastrointestinal helminthiasis in the Sertão region of Paraíba State, Northeastern Brazil: prevalence and risk factors. ACTA ACUST UNITED AC 2014; 23:488-94. [PMID: 25517527 DOI: 10.1590/s1984-29612014089] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 08/04/2014] [Indexed: 11/21/2022]
Abstract
In this study, we aimed to establish the prevalence and risk factors relating to gastrointestinal helminthiasis, and to characterize the sanitary management practiced among sheep herds in the Sertão region of the state of Paraíba, northeastern Brazil, based on factors that condition the ways of controlling these parasites in these herds. The research was carried out between April and July 2012. We visited 54 farms, where fecal and blood samples were individually collected from 465 animals. On each farm, a questionnaire was applied to gather information on variables relating to potential risk factors. The prevalence of sheep gastrointestinal helminthiasis in the region was 75.9%. At least one animal tested positive for this helminthiasis on 53 (98.1%) of the 54 farms evaluated. The eggs per gram of feces (EPG) analysis showed the following infection burdens: 51.8% with mild infection, 27.1% moderate infection, 9.9% heavy infection and 11.2% fatal infection. Among the sheep farms visited, anthelmintics were used on 81.5% (p <0.05). The most relevant risk factor in this study was the farm area, because it defines the area available for grazing animals. Properties with many animals and little pasture area, which are the most abundant type in the Sertão region of Paraíba, tend to have high prevalence of gastrointestinal helminthiasis, because the animals are more prone to reinfection. The Sertão region of Paraíba presents high prevalence of gastrointestinal helminthiasis among sheep, and the farm area is the most relevant risk factor for the development of these parasites.
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Affiliation(s)
- Vanessa Diniz Vieira
- Programa de Pós-Graduação em Zootecnia, Universidade Federal de Campina Grande - UFCG, Patos, PB, Brasil
| | | | - Thais Ferreira Feitosa
- Programa de Pós-Graduação em Medicina Veterinária, Universidade Federal de Campina Grande - UFCG, Patos, PB, Brasil
| | | | - Sérgio Santos Azevedo
- Programa de Pós-Graduação em Medicina Veterinária, Universidade Federal de Campina Grande - UFCG, Patos, PB, Brasil
| | | | - Gian Libânio da Silveira
- Unidade Acadêmica de Medicina Veterinária, Universidade Federal de Campina Grande - UFCG, Patos, PB, Brasil
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Braga FR, Carvalho RO, Silva AR, Araújo JV, Frassy LN, Lafisca A, Soares FEF. Predatory capability of the nematophagous fungus Arthrobotrys robusta preserved in silica gel on infecting larvae of Haemonchus contortus. Trop Anim Health Prod 2014; 46:571-4. [PMID: 24510197 DOI: 10.1007/s11250-014-0544-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2014] [Indexed: 11/25/2022]
Abstract
Biological control of gastrointestinal nematodiasis in ruminants is an alternative to reduce the number of infective larvae. The fungal isolates predatory activity preservation is a basic requirement for the success of this control type. The aim of this work is to evaluate the predatory capacity of the fungus Arthrobotrys robusta (isolate I-31), preserved on silica gel on infective larvae of Haemonchus contortus under laboratory conditions on 2 % water agar (2 % WA). In this essay, A. robusta storage on silica gel showed successful predatory activity on H. contortus L3 larvae (p < 0.01) compared to the control group. Nematophagous fungi were not observed in the control group during the experiment. There was a significant reduction (p < 0.01) of 73.84 % in the means of H. contortus (L3) recovered from treatment with isolate I-31 compared to the control without fungi. Results indicate that A. robusta (I-31) could survive stored on silica gel for at least 7 years and keep its predatory activity on H. contortus (L3).
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Affiliation(s)
- Fabio R Braga
- Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, MG, Cep: 3657000, Brazil,
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17
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Nematophagous fungi for biological control of gastrointestinal nematodes in domestic animals. Appl Microbiol Biotechnol 2013; 98:71-82. [DOI: 10.1007/s00253-013-5366-z] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/28/2013] [Accepted: 10/30/2013] [Indexed: 01/28/2023]
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18
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Arias MS, Suárez J, Cazapal-Monteiro CF, Francisco I, López-Arellano ME, Piñeiro P, Suárez JL, Sánchez-Andrade R, Mendoza de Gives P, Paz-Silva A. Trematodes enhance the development of the nematode-trapping fungus Arthrobotrys (Duddingtonia) flagrans. Fungal Biol 2013; 117:540-4. [DOI: 10.1016/j.funbio.2013.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Revised: 05/23/2013] [Accepted: 06/13/2013] [Indexed: 11/26/2022]
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Tavela ADO, de Araújo JV, Braga FR, da Silveira WF, Dornelas e Silva VH, Carretta Júnior M, Borges LA, Araujo JM, Benjamin LDA, Carvalho GR, de Paula AT. Coadministration of sodium alginate pellets containing the fungi Duddingtonia flagrans and Monacrosporium thaumasium on cyathostomin infective larvae after passing through the gastrointestinal tract of horses. Res Vet Sci 2013; 94:568-72. [DOI: 10.1016/j.rvsc.2012.11.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 09/30/2012] [Accepted: 11/22/2012] [Indexed: 11/30/2022]
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20
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Assis R, Luns F, Araújo J, Braga F, Assis R, Marcelino J, Freitas P, Andrade M. Comparison between the action of nematode predatory fungi Duddingtonia flagrans and Monacrosporium thaumasium in the biological control of bovine gastrointestinal nematodiasis in tropical southeastern Brazil. Vet Parasitol 2013; 193:134-40. [DOI: 10.1016/j.vetpar.2012.12.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 11/19/2012] [Accepted: 12/10/2012] [Indexed: 11/30/2022]
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21
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Silva MED, Araújo JVD, Braga FR, Freitas Soares FED, Rodrigues DS. Control of infective larvae of gastrointestinal nematodes in heifers using different isolates of nematophagous fungi. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA 2013; 22:78-83. [DOI: 10.1590/s1984-29612013005000012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 09/12/2012] [Indexed: 11/22/2022]
Abstract
The effect of different nematophagous fungi [Duddingtonia flagrans (AC001 and CG722) and Monacrosporium thaumasium (NF34)] with regard to controlling infective larvae (L3) of nematodes after gastrointestinal transit in female cattle (3/4 Holstein × Zebu) was evaluated. A total of 24 pubescent female cattle were used, weighing approximately 320 kg each one. There were three treatment groups, each contained six animals that received 150 g of pellets (0.2 g of mycelium), orally in a single dose, in a sodium alginate matrix containing mycelial mass of the fungus D. flagrans (AC001 or CG722) or M. thaumasium (NF34); and one control group (without fungi). Fecal samples were collected from the animals at intervals of 12, 15, 18, 21, 24, 48, and 72 hours. At the end of 17 days, the L3 not subjected to predation were recovered by means of the Baermann method. The fungal isolates tested were capable of destroying the L3 after gastrointestinal transit. It was observed that within 72 hours, the isolates AC001, CG722, and NF34 showed a higher predatory activity (81.2%, 97.3%, and 98.3%, respectively). The results justify the need for studies in the field, and over longer intervals, in order to observe the efficiency of the fungus D. flagrans, or even M. thaumasium, for environmental control over nematodes in naturally infected cattle.
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Affiliation(s)
- Manoel Eduardo da Silva
- Universidade Federal de Viçosa – UFV, Brasil; Empresa de Pesquisa Agropecuária de Minas Gerais – EPAMIG, Brasil
| | | | - Fabio Ribeiro Braga
- Universidade Federal de Viçosa – UFV, Brasil; Universidade Vila Velha – UVV, Brasil
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22
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Efficacy of Monacrosporium thaumasium in the control of goat gastrointestinal helminthiasis in a semi-arid region of Brazil. Parasitol Res 2012; 112:871-7. [DOI: 10.1007/s00436-012-3078-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Accepted: 08/07/2012] [Indexed: 11/26/2022]
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23
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Biological control of goat gastrointestinal helminthiasis by Duddingtonia flagrans in a semi-arid region of the northeastern Brazil. Vet Parasitol 2012; 188:127-33. [DOI: 10.1016/j.vetpar.2012.02.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 02/20/2012] [Accepted: 02/22/2012] [Indexed: 11/23/2022]
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Torres-Acosta JFJ, Molento M, Mendoza de Gives P. Research and implementation of novel approaches for the control of nematode parasites in Latin America and the Caribbean: is there sufficient incentive for a greater extension effort? Vet Parasitol 2011; 186:132-42. [PMID: 22169402 DOI: 10.1016/j.vetpar.2011.11.053] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The widespread presence of anthelmintic resistant gastrointestinal parasitic nematodes in outdoor ruminant production systems has driven the need to identify and develop novel approaches for the control of helminths with the intention to reduce the dependence on commercial anthelmintic drugs. This paper identifies what has been done in Latin America (LA) in terms of estimating the prevalence of anthelmintic resistance (AR) in ruminant production systems and the application of different novel approaches for the control of helminths in those systems, including research and extension activities. Firstly, the paucity of knowledge of AR is discussed in the context of different countries, as well as, the available economic resources for research, the technical infrastructure available and the practical difficulties of the production systems. It is then proposed that the search for novel approaches is not only driven by AR but also by the need for techniques that are feasible for application by resource-poor farmers in non-commercial subsistence farming systems. However, the commercial benefits of these approaches are often limited and so are funding inputs in most countries. The workers participating in the research into different novel approaches are identified as well as the different methods being studied in the different areas of LA according to their published results. In addition, the difficulties experienced during extension efforts to reach farmers and help them to adopt novel approaches for the control of parasitic nematodes in LA are discussed. The role of regulatory authorities in these countries is discussed as some methods of control might need an official confirmation of their efficacy as well as authorization prior to application as they may affect animal products (i.e. residues) and/or impose a hazard for animal welfare. The role of the pharmaceutical companies is also discussed.
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Affiliation(s)
- J F J Torres-Acosta
- Facultad de Medicina Veterinaria y Zootecnia, CCBA, Universidad Autónoma de Yucatán, Km 15.5 carretera Mérida-Xmatkuil, Mérida, Yucatán, Mexico.
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25
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Predatory activity of the fungus Duddingtonia flagrans in equine strongyle infective larvae on natural pasture in the Southern Region of Brazil. Parasitol Res 2011; 110:657-62. [DOI: 10.1007/s00436-011-2537-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Accepted: 06/30/2011] [Indexed: 10/18/2022]
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26
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da Cruz DG, Araújo FB, Molento MB, Damatta RA, de Paula Santos C. Kinetics of capture and infection of infective larvae of trichostrongylides and free-living nematodes Panagrellus sp. by Duddingtonia flagrans. Parasitol Res 2011; 109:1085-91. [PMID: 21445615 DOI: 10.1007/s00436-011-2350-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Accepted: 03/11/2011] [Indexed: 10/18/2022]
Abstract
Duddingtonia flagrans, a nematode-trapping fungus, has been investigated as an agent for biological control against infective larvae of gastrointestinal nematode parasites of production animals. The initial process of nematode-trapping fungi infection is based on an interaction between the trap structure of the fungus and the surface of the nematode cuticle. This report investigates by light and scanning electron microscopy the kinetics of capture and infection during the interaction of D. flagrans with the infective larvae (L(3)) of trichostrongylides and the free-living nematode Panagrellus sp. D. flagrans was cultivated for 7 days in a Petri dish containing agar-water. L(3) and Panagrellus sp. were inoculated in the Petri dishes and the samples consisting of agar-L(3)-fungi and agar-Panagrellus sp.-fungi were collected after 10, 20, 30, 40, 50, 60, and 70 min and 3, 4, 5, 10, 15, 20, and 25 h of interaction. All samples were observed by light microscopy. The samples with 1, 5, 15, and 25 h of interaction were also analyzed by scanning electron microscopy. The interaction was monitored up to 25 h. An initial differentiation of predation structures was observed after 30 min of interaction. The presence of traps and of captured L(3) or Panagrellus sp. occurred after 70 min. The live captured nematodes were observed up to 3 h of interaction. However, after 4 h, all Panagrellus sp. were dead. It took 15 h of interaction for the fungus to invade the L(3), and the presence of hyphae inside the nematode near the region of penetration was evident. At this time, the hyphae had filled the whole body of Panagrellus sp. The complete occupation of the body of L(3) occurred at 20 h of interaction and with 25 h the nematode was completely damaged except for the cuticle. Although the double cuticle of L(3) slows the penetration of D. flagrans, it was possible to verify that the process of trap formation and capture occurs quickly when both nematodes were tested, suggesting that the organisms would eventually be killed once in contact with the fungi encouraging the use of the fungus as a biological control agent.
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Affiliation(s)
- Daniela Guedes da Cruz
- Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro, Brazil, CEP 28013-602
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27
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Comparative analysis of destruction of the infective forms of Trichuris trichiura and Haemonchus contortus by nematophagous fungi Pochonia chlamydosporia; Duddingtonia flagrans and Monacrosporium thaumasium by scanning electron microscopy. Vet Microbiol 2011; 147:214-9. [DOI: 10.1016/j.vetmic.2010.06.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Revised: 05/12/2010] [Accepted: 06/20/2010] [Indexed: 11/19/2022]
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28
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Tavela ADO, Araújo JV, Braga FR, Silva AR, Carvalho RO, Araujo JM, Ferreira SR, Carvalho GR. Biological control of cyathostomin (Nematoda: Cyathostominae) with nematophagous fungus Monacrosporium thaumasium in tropical southeastern Brazil. Vet Parasitol 2011; 175:92-6. [DOI: 10.1016/j.vetpar.2010.09.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 08/03/2010] [Accepted: 09/30/2010] [Indexed: 11/28/2022]
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Activity in vitro of fungal conidia of Duddingtonia flagrans and Monacrosporium thaumasium on Haemonchus contortus infective larvae. J Helminthol 2010; 85:138-41. [DOI: 10.1017/s0022149x10000362] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractThe objective of this work was to evaluate the predatory activity of the fungi Duddingtonia flagrans (AC001) and Monacrosporium thaumasium (NF34a) on Haemonchus contortus infective larvae (L3) in two experimental assays (A and B). In assay A, two treatments and one control were formed and kept for 7 days in Petri dishes with 2% water-agar. Each treatment consisted of 1000 H. contortus L3 and 1000 conidia of only one fungal isolate, and the control group consisted of 1000 L3, without fungus, with 10 repetitions per group. In assay B, 1000 conidia of one of the fungal isolates, AC001 or NF34a, were added to coprocultures made from 20 g of faeces collected from sheep naturally infected with H. contortus. At the end of the experiment, the Baermann method was used to count the non-predated larvae of all Petri dishes from treatment and control groups. In assay A, no difference was observed (P>0.05) between the groups treated with AC001 and NF34a fungi. A difference was observed (P < 0.05) between the treated and control groups. The L3 reduction percentages at the end of the experiment were 87.75 and 85.57%, respectively, for the fungal isolates compared to the control group. In assay B, the reduction percentages for conidia of these isolates were 85.82 and 87.32%, respectively. The results obtained show that D. flagrans (AC001) and M. thaumasium (NF34a) were effective in the in vitro control of sheep H. contortus L3 and could be used in the biological control of this nematode.
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Silva AR, Araújo JV, Braga FR, Alves CDF, Frassy LN. In vitro ovicidal activity of the nematophagous fungi Duddingtonia flagrans, Monacrosporium thaumasium and Pochonia chlamydosporia on Trichuris vulpis eggs. Vet Parasitol 2010; 172:76-9. [PMID: 20537799 DOI: 10.1016/j.vetpar.2010.04.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 04/26/2010] [Accepted: 04/27/2010] [Indexed: 10/19/2022]
Abstract
The in vitro effect of four isolates of the nematophagous fungi Duddingtonia flagrans (AC001), Monacrosporium thaumasium (NF34a) and Pochonia chlamydosporia (VC1 and VC4) on the eggs of Trichuris vulpis was evaluated. One thousand eggs of T. vulpis were plated on Petri dishes with 2% water-agar with the fungal isolates grown and without fungus as control. After 7, 14 and 21 days 100 eggs were removed from each plate and classified according to the following parameters: type 1, lytic effect without morphological damage to eggshell; type 2, lytic effect with morphological alteration of embryo and eggshell; and type 3, lytic effect with morphological alteration of embryo and eggshell, besides hyphal penetration and internal egg colonization. P. chlamydosporia demonstrated ovicidal activity (p<0.05) on the eggs of T. vulpis in the studied intervals presenting type 3 effect of 29.5% (VC1) and 36.5% (VC4), 59.5% (VC1) and 2.5% (VC4), 94.8% (VC1) and 2.95% (VC4) at 7, 14 and 21 days, respectively. The other fungi showed no type 3 effect. P. chlamydosporia should be a potential biological control agent of T. vulpis eggs.
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Affiliation(s)
- A R Silva
- Departamento de Veterinária, Universidade Federal de Viçosa, Campus s/n, Viçosa, MG 36570-000, Brazil.
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In vitro predatory activity of nematophagous fungi and after passing through gastrointestinal tract of equine on infective larvae of Strongyloides westeri. Parasitol Res 2010; 107:103-8. [DOI: 10.1007/s00436-010-1841-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Accepted: 03/11/2010] [Indexed: 10/19/2022]
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32
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Silva BF, Carrijo-Mauad JR, Braga FR, Campos AK, Araújo JV, Amarante AFT. Efficacy of Duddingtonia flagrans and Arthrobotrys robusta in controlling sheep parasitic gastroenteritis. Parasitol Res 2010; 106:1343-50. [DOI: 10.1007/s00436-010-1805-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Accepted: 02/19/2010] [Indexed: 11/29/2022]
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33
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Predatory activity of the nematophagous fungus Duddingtonia flagrans on horse cyathostomin infective larvae. Trop Anim Health Prod 2010; 42:1161-5. [DOI: 10.1007/s11250-010-9542-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2010] [Indexed: 10/19/2022]
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