Viability and Virulence of Entomopathogenic Nematodes Exposed to Ultraviolet Radiation
| العنوان: | Viability and Virulence of Entomopathogenic Nematodes Exposed to Ultraviolet Radiation |
|---|---|
| المؤلفون: | David I, Shapiro-Ilan, Selcuk, Hazir, Luis, Lete |
| المصدر: | Journal of nematology. 47(3) |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Contributed Paper |
| الوصف: | Entomopathogenic nematodes (EPNs) can be highly effective biocontrol agents, but their efficacy can be reduced due to exposure to environmental stress such as from ultraviolet (UV) radiation. Our objectives were to 1) compare UV tolerance among a broad array of EPN species, and 2) investigate the relationship between reduced nematode viability (after exposure to UV) and virulence. Nematodes exposed to a UV radiation (254 nm) for 10 or 20 min were assessed separately for viability (survival) and virulence to Galleria mellonella. We compared 9 different EPN species and 15 strains: Heterorhabditis bacteriophora (Baine, fl11, Oswego, and Vs strains), H. floridensis (332), H. georgiana (Kesha), H. indica (HOM1), H. megidis (UK211), Steinernema carpocapsae (All, Cxrd, DD136, and Sal strains), S. feltiae (SN), S. rarum (17C&E), and S. riobrave (355). In viability assessments, steinernematids, particularly strains of S. carpocapsae, generally exhibited superior UV tolerance compared with the heterorhabditids. However, some heterorhabditids tended to be more tolerant than others, e.g., H. megidis and H. bacteriophora (Baine) were most susceptible and H. bacteriophora (Vs) was the only heterorhabditid that did not exhibit a significant effect after 10 min of exposure. All heterorhabditids experienced reduced viability after 20 min exposure though several S. carpocapsae strains did not. In total, after 10 or 20 min exposure, the viability of seven nematode strains did not differ from their non-UV exposed controls. In virulence assays, steinernematids (particularly S. carpocapsae strains) also tended to exhibit higher UV tolerance. However, in contrast to the viability measurements, all nematodes experienced a reduction in virulence relative to their controls. Correlation analysis revealed that viability among nematode strains is not necessarily related to virulence. In conclusion, our results indicate that the impact of UV varies substantially among EPNs, and viability alone is not a sufficient measure for potential impact on biocontrol efficacy as other characters such as virulence may be severely affected even when viability remains high. |
| تدمد: | 0022-300X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=pmid________::5c8109446ff0a43d0874e942fc60cd9c https://pubmed.ncbi.nlm.nih.gov/26527839 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.pmid..........5c8109446ff0a43d0874e942fc60cd9c |
| قاعدة البيانات: | OpenAIRE |
| ResultId |
1 |
|---|---|
| Header |
edsair OpenAIRE edsair.pmid..........5c8109446ff0a43d0874e942fc60cd9c 789 3 unknown 789.280822753906 |
| PLink |
https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsair&AN=edsair.pmid..........5c8109446ff0a43d0874e942fc60cd9c&custid=s6537998&authtype=sso |
| FullText |
Array
(
[Availability] => 0
)
Array ( [0] => Array ( [Url] => https://explore.openaire.eu/search/publication?articleId=pmid________::5c8109446ff0a43d0874e942fc60cd9c# [Name] => EDS - OpenAIRE [Category] => fullText [Text] => View record in OpenAIRE [MouseOverText] => View record in OpenAIRE ) ) |
| Items |
Array
(
[Name] => Title
[Label] => Title
[Group] => Ti
[Data] => Viability and Virulence of Entomopathogenic Nematodes Exposed to Ultraviolet Radiation
)
Array ( [Name] => Author [Label] => Authors [Group] => Au [Data] => <searchLink fieldCode="AR" term="%22David+I%2C+Shapiro-Ilan%22">David I, Shapiro-Ilan</searchLink><br /><searchLink fieldCode="AR" term="%22Selcuk%2C+Hazir%22">Selcuk, Hazir</searchLink><br /><searchLink fieldCode="AR" term="%22Luis%2C+Lete%22">Luis, Lete</searchLink> ) Array ( [Name] => TitleSource [Label] => Source [Group] => Src [Data] => <i>Journal of nematology</i>. 47(3) ) Array ( [Name] => DatePubCY [Label] => Publication Year [Group] => Date [Data] => 2015 ) Array ( [Name] => Subject [Label] => Subject Terms [Group] => Su [Data] => <searchLink fieldCode="DE" term="%22Contributed+Paper%22">Contributed Paper</searchLink> ) Array ( [Name] => Abstract [Label] => Description [Group] => Ab [Data] => Entomopathogenic nematodes (EPNs) can be highly effective biocontrol agents, but their efficacy can be reduced due to exposure to environmental stress such as from ultraviolet (UV) radiation. Our objectives were to 1) compare UV tolerance among a broad array of EPN species, and 2) investigate the relationship between reduced nematode viability (after exposure to UV) and virulence. Nematodes exposed to a UV radiation (254 nm) for 10 or 20 min were assessed separately for viability (survival) and virulence to Galleria mellonella. We compared 9 different EPN species and 15 strains: Heterorhabditis bacteriophora (Baine, fl11, Oswego, and Vs strains), H. floridensis (332), H. georgiana (Kesha), H. indica (HOM1), H. megidis (UK211), Steinernema carpocapsae (All, Cxrd, DD136, and Sal strains), S. feltiae (SN), S. rarum (17C&E), and S. riobrave (355). In viability assessments, steinernematids, particularly strains of S. carpocapsae, generally exhibited superior UV tolerance compared with the heterorhabditids. However, some heterorhabditids tended to be more tolerant than others, e.g., H. megidis and H. bacteriophora (Baine) were most susceptible and H. bacteriophora (Vs) was the only heterorhabditid that did not exhibit a significant effect after 10 min of exposure. All heterorhabditids experienced reduced viability after 20 min exposure though several S. carpocapsae strains did not. In total, after 10 or 20 min exposure, the viability of seven nematode strains did not differ from their non-UV exposed controls. In virulence assays, steinernematids (particularly S. carpocapsae strains) also tended to exhibit higher UV tolerance. However, in contrast to the viability measurements, all nematodes experienced a reduction in virulence relative to their controls. Correlation analysis revealed that viability among nematode strains is not necessarily related to virulence. In conclusion, our results indicate that the impact of UV varies substantially among EPNs, and viability alone is not a sufficient measure for potential impact on biocontrol efficacy as other characters such as virulence may be severely affected even when viability remains high. ) Array ( [Name] => ISSN [Label] => ISSN [Group] => ISSN [Data] => 0022-300X ) Array ( [Name] => URL [Label] => Access URL [Group] => URL [Data] => <link linkTarget="URL" linkTerm="https://explore.openaire.eu/search/publication?articleId=pmid________::5c8109446ff0a43d0874e942fc60cd9c" linkWindow="_blank">https://explore.openaire.eu/search/publication?articleId=pmid________::5c8109446ff0a43d0874e942fc60cd9c</link><br /><link linkTarget="URL" linkTerm="https://pubmed.ncbi.nlm.nih.gov/26527839" linkWindow="_blank">https://pubmed.ncbi.nlm.nih.gov/26527839</link> ) Array ( [Name] => Copyright [Label] => Rights [Group] => Cpyrght [Data] => OPEN ) Array ( [Name] => AN [Label] => Accession Number [Group] => ID [Data] => edsair.pmid..........5c8109446ff0a43d0874e942fc60cd9c ) |
| RecordInfo |
Array
(
[BibEntity] => Array
(
[Languages] => Array
(
[0] => Array
(
[Text] => Undetermined
)
)
[Subjects] => Array
(
[0] => Array
(
[SubjectFull] => Contributed Paper
[Type] => general
)
)
[Titles] => Array
(
[0] => Array
(
[TitleFull] => Viability and Virulence of Entomopathogenic Nematodes Exposed to Ultraviolet Radiation
[Type] => main
)
)
)
[BibRelationships] => Array
(
[HasContributorRelationships] => Array
(
[0] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => David I, Shapiro-Ilan
)
)
)
[1] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Selcuk, Hazir
)
)
)
[2] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Luis, Lete
)
)
)
)
[IsPartOfRelationships] => Array
(
[0] => Array
(
[BibEntity] => Array
(
[Dates] => Array
(
[0] => Array
(
[D] => 04
[M] => 11
[Type] => published
[Y] => 2015
)
)
[Identifiers] => Array
(
[0] => Array
(
[Type] => issn-print
[Value] => 0022300X
)
[1] => Array
(
[Type] => issn-locals
[Value] => edsair
)
[2] => Array
(
[Type] => issn-locals
[Value] => edsairFT
)
)
[Numbering] => Array
(
[0] => Array
(
[Type] => volume
[Value] => 47
)
[1] => Array
(
[Type] => issue
[Value] => 3
)
)
[Titles] => Array
(
[0] => Array
(
[TitleFull] => Journal of nematology
[Type] => main
)
)
)
)
)
)
)
|
| IllustrationInfo |