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Mei X, Wang X, Li G. Pathogenicity and Volatile Nematicidal Metabolites from Duddingtonia flagrans against Meloidogyne incognita. Microorganisms 2021; 9:microorganisms9112268. [PMID: 34835396 PMCID: PMC8624258 DOI: 10.3390/microorganisms9112268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 11/23/2022] Open
Abstract
Plant parasitic nematodes, especially parasitic root-knot nematodes, are one of the most destructive plant pathogens worldwide. The control of plant root-knot nematodes is extremely challenging. Duddingtonia flagrans is a type of nematode-trapping fungi (NTF), which produces three-dimensional adhesive networks to trap nematodes. In this study, the pathogenicity and volatile organic compounds (VOCs) of the NTF D. flagrans against the plant root-knot nematode, Meloidogyne incognita, were investigated. The predatory process of D. flagrans trapping M. incognita was observed using scanning electron microscopy. Gas chromatography-mass spectrometry analysis of the VOCs from D. flagrans led to the identification of 52 metabolites, of which 11 main compounds were tested individually for their activity against M. incognita. Three compounds, cyclohexanamine, cyclohexanone, and cyclohexanol, were toxic to M. incognita. Furthermore, these three VOCs inhibited egg hatching of M. incognita. Cyclohexanamine showed the highest nematicidal activity, which can cause 97.93% mortality of M. incognita at 8.71 µM within 12 h. The number of hatched juveniles per egg mass after 3 days was just 8.44 when treated with 26.14 µM cyclohexanamine. This study is the first to demonstrate the nematicidal activity of VOCs produced by D. flagrans against M. incognita, which indicates that D. flagrans has the potential to biocontrol plant root-knot nematodes.
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Xue YJ, Li EL, Jing CX, Ma L, Cai KZ. Isolation, identification and characterization of the nematophagous fungus Arthrobotrys (Monacrosporium) sinense from China. Acta Parasitol 2018; 63:325-332. [PMID: 29654670 DOI: 10.1515/ap-2018-0037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 01/31/2018] [Indexed: 01/21/2023]
Abstract
With the development of anthelmintic resistance of parastic nematodes, it is necessary to isolate and study nematophagous fungi to screen out the native isolates for their potential in the biocontrol of domestic animal nematodosis. This study aimed to isolate the Arthrobotrys sinense (Monacrosporium sinense) of nematophagous fungus, to characterize representative molecular isolates using scanning electron microscope (SEM), and to determine the effect of the temperature and pH values on radial growth of the isolate. Five isolates were isolated from 1532 samples of different types, and their occurrence frequencies were 0.32% of the total samples. They were identified as A. sinense by means of morphology and the sequence of the 5.8S, 18S, and 28S rDNA, as well as internal transcribed spacers 1 and 2. The isolate NBS003 could grow from 11°C to 35°C and had optimal growth at 30°C. The isolate could grow at pH 4 to 11, and its optimal value was obtained at pH 9. SEM results showed that 6 h after their addition, the second stage larvae (L2) and the third stage infective larvae (L3) of Haemonchus contortus were captured. L2 and L3 were penetrated by the fungus at 18 and 24 h post-capture, respectively. L2 and L3 were completely digested at 84 and 90 h post-capture, respectively. The NBS003 of the A. sinense should have a certain potential to be used for capturing the free-living stage of nematodes in sheep.
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Affiliation(s)
- Ya-Juan Xue
- Medical College of Yan'an University, Yan'an, 716000, China
| | - Er-Le Li
- Yan'an People's Hospital, Yan'an, 716000, People's Republic of China
| | - Cai-Xia Jing
- Medical College of Yan'an University, Yan'an, 716000, China
| | - Li Ma
- Medical College of Yan'an University, Yan'an, 716000, China
| | - Kui-Zheng Cai
- College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou, 730030, People's Republic of China
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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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Uppal HS, Bal MS, Singla LD, Kaur P, Sandhu BS. Morphometric and scanning electron microscopy based identification of Ancylostoma caninum parasites in dog. J Parasit Dis 2017; 41:517-522. [PMID: 28615871 DOI: 10.1007/s12639-016-0841-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 09/21/2016] [Indexed: 11/30/2022] Open
Abstract
Ancylostoma caninum, a blood feeding nematode parasite (Family: Ancylostomatidae, Superfamily: Ancylostomatoidea) can cause anaemia, dark reddish-brown to black haemorrhagic diarrhoea, dehydration, wasting and deaths due to heavy blood loss. Adult hook worm parasites recovered from the intestine of a stray dog at the time of necropsy were identified as A. caninum based on morphological characters and morphometric observations involving scanning electron microscopy (SEM). Different developmental stages of hookworm eggs viz. 8 cell stage, morula, gastrula and vermiform were observed during the culture process of faecal sample. High quality SEM photographs showed teeth of dimensions 52.5, 42.3 and 23.5 μm on one side and 55.4, 43.8 and 21.0 μm on the other side along with the presence of characteristic transverse cuticular striations on body surface of A. caninum parasites.
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Affiliation(s)
- Harsimarandeep Singh Uppal
- Department of Veterinary Parasitology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
| | - Mandeep Singh Bal
- Department of Veterinary Parasitology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
| | - L D Singla
- Department of Veterinary Parasitology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
| | - Paramjit Kaur
- Department of Veterinary Parasitology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
| | - B S Sandhu
- Department of Veterinary Pathology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
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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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Liu W, Han Y, Wang BB, Sun LJ, Chen MY, Cai KZ, Li X, Zhao MW, Xu CL, Xu Q, Yi LX, Wang H, Xie DQ, Li XS, Wu JY, Yang J, Wei S, Li D, Chen CR, Zheng TH, Li Q, Peng JW. Isolation, identification, and characterization of the nematophagous fungusMonacrosporium salinumfrom China. J Basic Microbiol 2015; 55:992-1001. [DOI: 10.1002/jobm.201400909] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 02/05/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Liu
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Yuan Han
- 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
| | - 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
| | - Kui-zheng Cai
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Xuan Li
- 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
| | - Chun-lan Xu
- 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
| | - Lin-xin Yi
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - Hui Wang
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
| | - De-qiong Xie
- 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
| | - Jia-yan Wu
- 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
| | - Dan Li
- 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
| | - Tian-hui Zheng
- 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
| | - Jian-wei Peng
- College of Life Science and Engineering; Northwest University for Nationalities; Lanzhou China
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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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Fernandes FM, Araújo JV, Braga FR, Gazzinelli-Guimarães PH, Araujo JM, Ferreira SR, Carvalho RO, Mello INKD, Fujiwara RT. In vitro biological control of infective larvae of Ancylostoma ceylanicum. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA 2012; 21:283-6. [DOI: 10.1590/s1984-29612012000300018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 02/14/2012] [Indexed: 11/21/2022]
Abstract
The aim of this study was to evaluate the predatory activity of the fungus Duddingtonia flagrans (AC001) on infective larvae of Ancylostoma ceylanicum after gastrointestinal transit in hamsters. Twenty animals were used in the experiment, divided into two groups: a treated group (10 animals) and a control group (10 animals). In the group treated with D. flagrans, each animal received mycelium from the AC001 isolate, at an oral dose of 5 mg/25 g of live weight. To evaluate the predatory activity of the fungus, fecal samples were collected from the animals in both groups, at the times of 6, 8, 12, 24 and 36 hours after the treatment. Then, subsamples of 2 g of feces were placed in Petri dishes containing 2% water-agar (2% WA) culture medium and 1000 L3 of A. ceylanicum. Over the study period, the following percentage reductions were observed: 43.2% (6 hours), 30.8% (8 hours), 25.8% (12 hours), 30% (24 hours) and 11% (36 hours). The fungus D. flagrans presented predatory activity on the L3 of A. ceylanicum, after passing through the hamsters' gastrointestinal tract. It was therefore concluded that the fungus D. flagrans may be an alternative for biological control of the L3 of A. ceylanicum.
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