Age and temperature effects on accumulation of carotenoids in ladybirds.

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Age and temperature effects on accumulation of carotenoids in ladybirds.

Popis výsledku v původním jazyce

Carotenoids are important pigments of ladybirds providing bright red colouration. We measured the rate of deposition of carotenoids with age in elytra of two ladybird species in ethanol extracts, as well effects of sex and temperature. In Coccinella undecimpunctata, content of carotenoids continued to increase after 60 days of adult age at both 20 and 25 °C. Males had slightly higher pigment concentration than females. Carotenoid content in adult Harmonia axyridis (forma succinea) increased up to four months of the adult stage. No difference was found between individuals with contrasting extent of melanic pattern or between sexes. The trend of increase was between Holling functional types 1, 2, and 3. In a later experiment, the carotenoid content increased up to three months of the adult stage similarly for three levels of melanisation. There was no decrease of carotenoids in individuals with large melanic patterns. This means that carotenoids are not deposited under black spots. After four months, there was little decrease in carotenoid content. Thus, the trend was between functional types 2, 3, and 4. Slower rate of carotenoid deposition during adult stage after 1 week and 1 month was observed at higher temperatures (25, 30 °C) than at lower ones (15, 20 °C).

Název v anglickém jazyce

Age and temperature effects on accumulation of carotenoids in ladybirds.

Popis výsledku anglicky

Carotenoids are important pigments of ladybirds providing bright red colouration. We measured the rate of deposition of carotenoids with age in elytra of two ladybird species in ethanol extracts, as well effects of sex and temperature. In Coccinella undecimpunctata, content of carotenoids continued to increase after 60 days of adult age at both 20 and 25 °C. Males had slightly higher pigment concentration than females. Carotenoid content in adult Harmonia axyridis (forma succinea) increased up to four months of the adult stage. No difference was found between individuals with contrasting extent of melanic pattern or between sexes. The trend of increase was between Holling functional types 1, 2, and 3. In a later experiment, the carotenoid content increased up to three months of the adult stage similarly for three levels of melanisation. There was no decrease of carotenoids in individuals with large melanic patterns. This means that carotenoids are not deposited under black spots. After four months, there was little decrease in carotenoid content. Thus, the trend was between functional types 2, 3, and 4. Slower rate of carotenoid deposition during adult stage after 1 week and 1 month was observed at higher temperatures (25, 30 °C) than at lower ones (15, 20 °C).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10616 - Entomology

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

IOBC-WPRS

ISBN

978-92-9067-330-9

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

33-36

Název nakladatele

IOBC

Místo vydání

Maastricht

Místo konání akce

Portugalsko

Datum konání akce

12. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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