Heritability of immune function in the caterpillar Spodoptera littoralis
نویسندگان
چکیده
منابع مشابه
Heritability of immune function in the caterpillar
39 Phenoloxidase (PO) is believed to be a key mediator of 40 immune function in insects and has been implicated both in 41 non-self recognition and in resistance to a variety of 42 parasites and pathogens, including baculoviruses and para43 sitoids. Using larvae of the Egyptian cotton leafworm, Spo44 doptera littoralis, we found that despite its apparent impor45 tance, haemolymph PO activity va...
متن کاملSelection for cuticular melanism reveals immune function and life-history trade-offs in Spodoptera littoralis.
Several insect species show an increase in cuticular melanism in response to high densities. In some species, there is evidence that this melanism is correlated with an up-regulation of certain immune system components, particularly phenoloxidase (PO) activity, and with the down-regulation of lysozyme activity, suggesting a trade-off between the two traits. As melanism has a genetic component, ...
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Adult Lepidoptera use their antennae to probe their distant and proximate environment with sensory organs which detect volatile and contact chemicals. In this work, we have investigated the role and the sensitivity of antennal contact chemoreceptors of Spodoptera littoralis. Adults of both sexes have long and filiform antennae composed of about 70 flagellomeres. Each flagellomere bears six tast...
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Biochemical and histological analysis were performed on 4 larval instar of the cotton leaf worm Spodoptera littoralis to determine the effect of abamectin (LC50) on the biomarkers acetylcholinesterase (AChE), glutathione S-transferase (GST), α-, βesterase and mixed function oxidase (MFO).Biochemical analysis showed a severe reduction in the enzymatic activities of GST and α-esterase, as compare...
متن کاملSpodoptera littoralis-induced lectin expression in tobacco.
The induced defense response in plants towards herbivores is mainly regulated by jasmonates and leads to the accumulation of so-called jasmonate-induced proteins. Recently, a jasmonate (JA) inducible lectin called Nicotiana tabacum agglutinin or NICTABA was discovered in tobacco (N. tabacum cv Samsun) leaves. Tobacco plants also accumulate the lectin after insect attack by caterpillars. To stud...
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ژورنال
عنوان ژورنال: Heredity
سال: 2002
ISSN: 0018-067X,1365-2540
DOI: 10.1038/sj.hdy.6800031