Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Kurdistan province in Iran
Entomopathogenic nematodes (EPNs) are commonly used as biological agents for control of insect pests. This study was carried out to identify EPNs, determine dominant and frequent species in Kurdistan province, Iran and characterize their symbiotic bacteria. Identification of EPNs was performed based...
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| Format: | Article |
| Language: | English |
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University of Tarbiat Modares
2016-06-01
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| Series: | Journal of Crop Protection |
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| Online Access: | http://jcp.modares.ac.ir/article-3-11868-en.html |
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| author | Arman Abdolmaleki Zahra Tanha Maafi Houshang Rafie Dastjerdi Bahram Naseri Abolghasem Ghasemi |
| author_facet | Arman Abdolmaleki Zahra Tanha Maafi Houshang Rafie Dastjerdi Bahram Naseri Abolghasem Ghasemi |
| author_sort | Arman Abdolmaleki |
| collection | DOAJ |
| description | Entomopathogenic nematodes (EPNs) are commonly used as biological agents for control of insect pests. This study was carried out to identify EPNs, determine dominant and frequent species in Kurdistan province, Iran and characterize their symbiotic bacteria. Identification of EPNs was performed based on morphological and morphometrical characters and also rRNA-ITS gene sequences. Two EPNs, Heterorhabditis bacteriophora (Rhabditida: Heterorhabditidae) and Steinernema feltiae (Rhabditida: Steinernematidae) were identified. Out of totally 150 soil samples collected mainly from mid-southern parts of the province, 60% were positive for EPNs. Heterorhabditis bacteriphora showed the highest frequency in this region, remarkably 59.3% of soil samples contained this species. Incidences of H. bacteriphora in grasslands, woodlands and alfalfa fields were 57.3, 14.6 and 28.0 percent, respectively. Steinernema feltiae was found only in alfalfa fields with 0.66% frequency. Bacterial symbionts of H. bacteriophora and S. feltiae were also identified based on biochemical characters and recA gene sequencing. In this research, two species of Photorhabdus were isolated from H. bacteriophora namely P. luminescens subsp. kayaii and P. temperata subsp. thracensis. Xenorhabdus bovienii was identified from infective juveniles of S. feltiae. |
| first_indexed | 2024-04-14T04:41:13Z |
| format | Article |
| id | doaj.art-c7bb2bab963849ed995faf6eaa5557cc |
| institution | Directory Open Access Journal |
| issn | 2251-9041 2251-905X |
| language | English |
| last_indexed | 2024-04-14T04:41:13Z |
| publishDate | 2016-06-01 |
| publisher | University of Tarbiat Modares |
| record_format | Article |
| series | Journal of Crop Protection |
| spelling | doaj.art-c7bb2bab963849ed995faf6eaa5557cc2022-12-22T02:11:39ZengUniversity of Tarbiat ModaresJournal of Crop Protection2251-90412251-905X2016-06-0152259271Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Kurdistan province in IranArman Abdolmaleki0Zahra Tanha Maafi1Houshang Rafie Dastjerdi2Bahram Naseri3Abolghasem Ghasemi4 Department of Plant Protection, Faculty of Agricultural Sciences, University of Mohaghegh Ardabili, Ardabil, Iran. Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran. Department of Plant Protection, Faculty of Agricultural Sciences, University of Mohaghegh Ardabili, Ardabil, Iran. Department of Plant Protection, Faculty of Agricultural Sciences, University of Mohaghegh Ardabili, Ardabil, Iran. Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran. Entomopathogenic nematodes (EPNs) are commonly used as biological agents for control of insect pests. This study was carried out to identify EPNs, determine dominant and frequent species in Kurdistan province, Iran and characterize their symbiotic bacteria. Identification of EPNs was performed based on morphological and morphometrical characters and also rRNA-ITS gene sequences. Two EPNs, Heterorhabditis bacteriophora (Rhabditida: Heterorhabditidae) and Steinernema feltiae (Rhabditida: Steinernematidae) were identified. Out of totally 150 soil samples collected mainly from mid-southern parts of the province, 60% were positive for EPNs. Heterorhabditis bacteriphora showed the highest frequency in this region, remarkably 59.3% of soil samples contained this species. Incidences of H. bacteriphora in grasslands, woodlands and alfalfa fields were 57.3, 14.6 and 28.0 percent, respectively. Steinernema feltiae was found only in alfalfa fields with 0.66% frequency. Bacterial symbionts of H. bacteriophora and S. feltiae were also identified based on biochemical characters and recA gene sequencing. In this research, two species of Photorhabdus were isolated from H. bacteriophora namely P. luminescens subsp. kayaii and P. temperata subsp. thracensis. Xenorhabdus bovienii was identified from infective juveniles of S. feltiae.http://jcp.modares.ac.ir/article-3-11868-en.htmlheterorhabditis bacteriophoraphotorhabdus luminescenssteinernema feltiaexenorhabdus bovieniiphylogeny |
| spellingShingle | Arman Abdolmaleki Zahra Tanha Maafi Houshang Rafie Dastjerdi Bahram Naseri Abolghasem Ghasemi Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Kurdistan province in Iran Journal of Crop Protection heterorhabditis bacteriophora photorhabdus luminescens steinernema feltiae xenorhabdus bovienii phylogeny |
| title | Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Kurdistan province in Iran |
| title_full | Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Kurdistan province in Iran |
| title_fullStr | Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Kurdistan province in Iran |
| title_full_unstemmed | Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Kurdistan province in Iran |
| title_short | Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Kurdistan province in Iran |
| title_sort | isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from kurdistan province in iran |
| topic | heterorhabditis bacteriophora photorhabdus luminescens steinernema feltiae xenorhabdus bovienii phylogeny |
| url | http://jcp.modares.ac.ir/article-3-11868-en.html |
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