Developmental synchrony between Spodoptera littoralis (Boisd.) and its parasite Microplitis rufiventris Kok
The developmental interaction between Spodoptera littoralis (Boisd.) and its endoparasite, Microplitis rufiventris Kok. were studied under controlled conditions of short (6 h light–18 h dark) and long (18 h light–6 h dark) photoperiods, 20 ± 1°C and 60 ± 5% r.h. The developmental times of both speci...
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| Veröffentlicht in: | Journal of insect physiology 1988, Vol.34 (8), p.773-778 |
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| container_title | Journal of insect physiology |
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| creator | Hegazi, E.M. Schopf, A. Fuhrer, E. Fouad, S.H. |
| description | The developmental interaction between
Spodoptera littoralis (Boisd.) and its endoparasite,
Microplitis rufiventris Kok. were studied under controlled conditions of short (6 h light–18 h dark) and long (18 h light–6 h dark) photoperiods, 20 ± 1°C and 60 ± 5% r.h. The developmental times of both species were reduced under short-day photoperiod conditions. Photoperiod as well as parasitism markedly affected the number of moults of the host larvae and the developmental time of the parasite was correlated with its sex, the host's age and photoperiod. Juvenile hormone titres in the haemolymph of parasitized and unparasitized larvae were determined using the
Galleria bioassay. The haemolymph juvenile hormone titres of parasitized larvae were significantly higher than those of unparasitized larvae. The high levels of juvenile hormone were recorded prior and subsequent to parasite emergence. Importantly, parasitism interferes with the normal development of the host larvae. |
| doi_str_mv | 10.1016/0022-1910(88)90151-5 |
| format | Article |
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Spodoptera littoralis (Boisd.) and its endoparasite,
Microplitis rufiventris Kok. were studied under controlled conditions of short (6 h light–18 h dark) and long (18 h light–6 h dark) photoperiods, 20 ± 1°C and 60 ± 5% r.h. The developmental times of both species were reduced under short-day photoperiod conditions. Photoperiod as well as parasitism markedly affected the number of moults of the host larvae and the developmental time of the parasite was correlated with its sex, the host's age and photoperiod. Juvenile hormone titres in the haemolymph of parasitized and unparasitized larvae were determined using the
Galleria bioassay. The haemolymph juvenile hormone titres of parasitized larvae were significantly higher than those of unparasitized larvae. The high levels of juvenile hormone were recorded prior and subsequent to parasite emergence. Importantly, parasitism interferes with the normal development of the host larvae.</description><identifier>ISSN: 0022-1910</identifier><identifier>EISSN: 1879-1611</identifier><identifier>DOI: 10.1016/0022-1910(88)90151-5</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>biological control ; Braconidae ; development ; Gossypium ; instars ; juvenile hormone ; juvenile hormones ; larvae ; Microgaster ; Microplitis rufiventris ; Noctuidae ; parasites ; parasites of insect pests ; parasitism ; Photoperiod ; Spodoptera littoralis</subject><ispartof>Journal of insect physiology, 1988, Vol.34 (8), p.773-778</ispartof><rights>1988</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-1b30ac85e9cc30f7fbb4664775ff6015d1ee9c748125bd0db73351443abf46bd3</citedby><cites>FETCH-LOGICAL-c361t-1b30ac85e9cc30f7fbb4664775ff6015d1ee9c748125bd0db73351443abf46bd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0022-1910(88)90151-5$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,4022,27922,27923,27924,45994</link.rule.ids></links><search><creatorcontrib>Hegazi, E.M.</creatorcontrib><creatorcontrib>Schopf, A.</creatorcontrib><creatorcontrib>Fuhrer, E.</creatorcontrib><creatorcontrib>Fouad, S.H.</creatorcontrib><title>Developmental synchrony between Spodoptera littoralis (Boisd.) and its parasite Microplitis rufiventris Kok</title><title>Journal of insect physiology</title><description>The developmental interaction between
Spodoptera littoralis (Boisd.) and its endoparasite,
Microplitis rufiventris Kok. were studied under controlled conditions of short (6 h light–18 h dark) and long (18 h light–6 h dark) photoperiods, 20 ± 1°C and 60 ± 5% r.h. The developmental times of both species were reduced under short-day photoperiod conditions. Photoperiod as well as parasitism markedly affected the number of moults of the host larvae and the developmental time of the parasite was correlated with its sex, the host's age and photoperiod. Juvenile hormone titres in the haemolymph of parasitized and unparasitized larvae were determined using the
Galleria bioassay. The haemolymph juvenile hormone titres of parasitized larvae were significantly higher than those of unparasitized larvae. The high levels of juvenile hormone were recorded prior and subsequent to parasite emergence. Importantly, parasitism interferes with the normal development of the host larvae.</description><subject>biological control</subject><subject>Braconidae</subject><subject>development</subject><subject>Gossypium</subject><subject>instars</subject><subject>juvenile hormone</subject><subject>juvenile hormones</subject><subject>larvae</subject><subject>Microgaster</subject><subject>Microplitis rufiventris</subject><subject>Noctuidae</subject><subject>parasites</subject><subject>parasites of insect pests</subject><subject>parasitism</subject><subject>Photoperiod</subject><subject>Spodoptera littoralis</subject><issn>0022-1910</issn><issn>1879-1611</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1988</creationdate><recordtype>article</recordtype><recordid>eNp9kE9P3DAQxa2qSN1SvkElfKrgEDoTx0n2Uqmlf0CAOABny7HHYMjGqe3dar99vd2qx55mpPm9mXmPsfcIZwjYfgSo6wqXCCd9f7oElFjJV2yBfbessEV8zRb_kDfsbUrPACDbXi7Yy1fa0BjmFU1ZjzxtJ_MUw7TlA-VfRBO_m4MNc6ao-ehzDlGPPvGTL8Ene3bK9WS5z4nPOurkM_Ebb2KYC1qouHZ-UxbH0l-Fl3fswOkx0dHfesgevn-7P7-orm9_XJ5_vq6MaDFXOAjQppe0NEaA69wwNG3bdJ10ri3mLFIZdU2PtRws2KETQmLTCD24ph2sOGQf9nvnGH6uKWW18snQOOqJwjoplFBLBFHAZg-Wl1OK5NQc_UrHrUJQu2TVLja1i031vfqTrJJFdryXOR2Ufizu1MNdDSgAG-gQsRCf9gQVmxtPUSXjaTJkfSSTlQ3-_yd-A-a_iqU</recordid><startdate>1988</startdate><enddate>1988</enddate><creator>Hegazi, E.M.</creator><creator>Schopf, A.</creator><creator>Fuhrer, E.</creator><creator>Fouad, S.H.</creator><general>Elsevier Ltd</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SS</scope></search><sort><creationdate>1988</creationdate><title>Developmental synchrony between Spodoptera littoralis (Boisd.) and its parasite Microplitis rufiventris Kok</title><author>Hegazi, E.M. ; Schopf, A. ; Fuhrer, E. ; Fouad, S.H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-1b30ac85e9cc30f7fbb4664775ff6015d1ee9c748125bd0db73351443abf46bd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1988</creationdate><topic>biological control</topic><topic>Braconidae</topic><topic>development</topic><topic>Gossypium</topic><topic>instars</topic><topic>juvenile hormone</topic><topic>juvenile hormones</topic><topic>larvae</topic><topic>Microgaster</topic><topic>Microplitis rufiventris</topic><topic>Noctuidae</topic><topic>parasites</topic><topic>parasites of insect pests</topic><topic>parasitism</topic><topic>Photoperiod</topic><topic>Spodoptera littoralis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hegazi, E.M.</creatorcontrib><creatorcontrib>Schopf, A.</creatorcontrib><creatorcontrib>Fuhrer, E.</creatorcontrib><creatorcontrib>Fouad, S.H.</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Entomology Abstracts (Full archive)</collection><jtitle>Journal of insect physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hegazi, E.M.</au><au>Schopf, A.</au><au>Fuhrer, E.</au><au>Fouad, S.H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Developmental synchrony between Spodoptera littoralis (Boisd.) and its parasite Microplitis rufiventris Kok</atitle><jtitle>Journal of insect physiology</jtitle><date>1988</date><risdate>1988</risdate><volume>34</volume><issue>8</issue><spage>773</spage><epage>778</epage><pages>773-778</pages><issn>0022-1910</issn><eissn>1879-1611</eissn><abstract>The developmental interaction between
Spodoptera littoralis (Boisd.) and its endoparasite,
Microplitis rufiventris Kok. were studied under controlled conditions of short (6 h light–18 h dark) and long (18 h light–6 h dark) photoperiods, 20 ± 1°C and 60 ± 5% r.h. The developmental times of both species were reduced under short-day photoperiod conditions. Photoperiod as well as parasitism markedly affected the number of moults of the host larvae and the developmental time of the parasite was correlated with its sex, the host's age and photoperiod. Juvenile hormone titres in the haemolymph of parasitized and unparasitized larvae were determined using the
Galleria bioassay. The haemolymph juvenile hormone titres of parasitized larvae were significantly higher than those of unparasitized larvae. The high levels of juvenile hormone were recorded prior and subsequent to parasite emergence. Importantly, parasitism interferes with the normal development of the host larvae.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/0022-1910(88)90151-5</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Journal of insect physiology, 1988, Vol.34 (8), p.773-778 |
| issn | 0022-1910 1879-1611 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_15025103 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | biological control Braconidae development Gossypium instars juvenile hormone juvenile hormones larvae Microgaster Microplitis rufiventris Noctuidae parasites parasites of insect pests parasitism Photoperiod Spodoptera littoralis |
| title | Developmental synchrony between Spodoptera littoralis (Boisd.) and its parasite Microplitis rufiventris Kok |
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