کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2840924 1165367 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photoperiodic response of larvae of the yellow-spotted longicorn beetle Psacothea hilaris after removal of the stemmata
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش حشره شناسی
پیش نمایش صفحه اول مقاله
Photoperiodic response of larvae of the yellow-spotted longicorn beetle Psacothea hilaris after removal of the stemmata
چکیده انگلیسی

The role of the stemmata in photoperiodism has been examined in holometabolic insects, but the only reliable results in Coleoptera have been obtained in Leptocarabus kumagaii (Carabidae), the larvae of which do not respond to photoperiod without stemmata. In the present study, photoperiodism was examined in another coleopteran, Psacothea hilaris (Pascoe) (Cerambycidae), after surgical removal of the stemmata. Larvae reared under short-day conditions and transferred to long-day conditions on day 2 of the 5th instar pupated without further larval molts, whereas those continuously reared under short-day conditions underwent supernumerary molts and did not pupate. When the stemmata were removed on day 2 of the 5th instar, the larvae pupated under long-day conditions but did not do so under short-day conditions. However, under long-day conditions some underwent supernumerary molts before pupation. Larvae from which the sensilla trichodeum were removed showed a similar response to that of stemmata-deficient larvae, and larvae from which stemmata were removed at a younger stage (day 2 of the 4th instar) responded to photoperiod similarly to intact larvae. Thus, supernumerary molts under long-day conditions after removal of the stemmata were attributed to injury due to surgery, rather than a change in photoperiodic photoreception. Therefore, we conclude that larvae of P. hilaris show a photoperiodic response after removal of stemmata, in contrast to larvae of L. kumagaii.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Insect Physiology - Volume 56, Issue 9, September 2010, Pages 1125–1129
نویسندگان
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