Abstract：
:Brassica nigra plants, characterized by high levels of sinigrin, and artificial aphid diets to which sinigrin was selectively added were used to rear the crucifer specialist, Brevicoryne brassicae. Aphids were provided as a food source to two species of polyphagous ladybird, Adalia bipunctata and Coccinella septempunctata. First instar A. bipunctata were unable to survive when fed with B. brassicae reared on B. nigra or diets containing 0.2% sinigrin, but when fed with aphids reared on diets containing 0% sinigrin, survival rates were high. By contrast, first instar C. septempunctata were able to survive when fed with aphids reared on B. nigra or artificial diets containing up to 1% sinigrin. However, the presence of sinigrin in the aphid diet decreased larval growth and increased the time necessary for larvae to reach second instar for this species of ladybird. These results indicate that the presence of sinigrin in the diet of B. brassicae makes this aphid unsuitable as a food source for A. bipunctata but not for C. septempunctata, although for this ladybird species, there appear to be costs associated with feeding on aphids that contain this secondary metabolite.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Pratt C,Pope TW,Powell G,Rossiter JTdoi
10.1007/s10886-007-9421-zsubject
Has Abstractpub_date
2008-03-01 00:00:00pages
323-9issue
3eissn
0098-0331issn
1573-1561journal_volume
34pub_type
杂志文章abstract：:An inexpensive, silent, maintenance-free suction/adsorption system is described for efficiently collecting submicrogram quantities of odors over a wide range of volatilities under field conditions. The samples can later be submitted to gas chromatographic-mass spectrometric analyses. An example is given with odors sam...
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更新日期：1981-03-01 00:00:00
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pub_type： 杂志文章
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更新日期：2005-11-01 00:00:00
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更新日期：1993-12-01 00:00:00
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pub_type： 杂志文章
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更新日期：2008-05-01 00:00:00
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pub_type： 杂志文章
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更新日期：1990-03-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s10886-014-0493-2
更新日期：2014-09-01 00:00:00
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pub_type： 杂志文章
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更新日期：2003-09-01 00:00:00
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更新日期：2006-03-01 00:00:00
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更新日期：2013-10-01 00:00:00
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更新日期：1982-12-01 00:00:00
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