کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9147614 | 1165437 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stage-dependent strategies of host invasion in the egg-larval parasitoid Chelonus inanitus
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش حشره شناسی
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![عکس صفحه اول مقاله: Stage-dependent strategies of host invasion in the egg-larval parasitoid Chelonus inanitus Stage-dependent strategies of host invasion in the egg-larval parasitoid Chelonus inanitus](/preview/png/9147614.png)
چکیده انگلیسی
Chelonus inanitus (Braconidae) is a solitary egg-larval parasitoid which lays its eggs into eggs of Spodoptera littoralis (Noctuidae); the parasitoid larva then develops in the haemocoel of the host larva. Host embryonic development lasts approx. 3.5 days while parasitoid embryonic development lasts approx. 16Â h. All stages of host eggs can be successfully parasitized, and we show here that either the parasitoid larva or the wasp assures that the larva eventually is located in the host's haemocoel. (1) When freshly laid eggs, up to almost 1-day-old, are parasitized, the parasitoid hatches while still in the yolk and enters the host either after waiting or immediately through the dorsal opening. (2) When 1-2-day-old eggs are parasitized, the host embryo has accomplished final dorsal closure and is covered by an embryonic cuticle when the parasitoid hatches; in this case the parasitoid larva bores with its moving abdominal tip into the host. (3) When 2.5-3.5-day-old eggs are parasitized, the wasp oviposits directly into the haemocoel of the host embryo; from day 2 to 2.5 the embryo is still very small and the wasps, after probing, often restrain from oviposition for a few hours.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Insect Physiology - Volume 51, Issue 3, March 2005, Pages 287-296
Journal: Journal of Insect Physiology - Volume 51, Issue 3, March 2005, Pages 287-296
نویسندگان
Martha Kaeslin, Irene Wehrle, Christa Grossniklaus-Bürgin, Toni Wyler, Ursula Guggisberg, Johannes C. Schittny, Beatrice Lanzrein,