Vitis vinifera canes, a source of stilbenoids against Spodoptera littoralis larvae

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F17%3A00004009" target="_blank" >RIV/00027006:_____/17:00004009 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10340-017-0836-1" target="_blank" >http://dx.doi.org/10.1007/s10340-017-0836-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10340-017-0836-1" target="_blank" >10.1007/s10340-017-0836-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Vitis vinifera canes, a source of stilbenoids against Spodoptera littoralis larvae

Popis výsledku v původním jazyce

Stilbenes are constitutively accumulated in grape canes at a high concentration of about 10 g kg-1 DW. Some of these compounds have antimicrobial activity and are involved in grapevine defence in leaves and fruits, acting as phytoalexins. In this work, we studied their insecticidal effects against Spodoptera littoralis larvae by using an extract from grapevine canes containing 27% (w/w) of total stilbenes and the major ones isolated from this extract (E-piceatannol, E-resveratrol, isohopeaphenol, E-?-viniferin and E-vitisin B). The stilbenes isolated from the grapevine extract did not show any significant antifeedant effect or acute toxicity, but they did cause chronic mortality to the larvae population of an important polyphagous pest, S. littoralis. The tetramer, E-vitisin B, appeared to be the most effective compound with LC50 and LC90 values of 134 and 298 µg cm-2, respectively. Significant synergic relationships were found between some stilbenes, resulting in a significant increase in the insecticidal efficacy of the mixture of these substances. Taken together, these results suggest that grapevine canes are a good source of active substances for the development of botanical insecticides.

Název v anglickém jazyce

Vitis vinifera canes, a source of stilbenoids against Spodoptera littoralis larvae

Popis výsledku anglicky

Stilbenes are constitutively accumulated in grape canes at a high concentration of about 10 g kg-1 DW. Some of these compounds have antimicrobial activity and are involved in grapevine defence in leaves and fruits, acting as phytoalexins. In this work, we studied their insecticidal effects against Spodoptera littoralis larvae by using an extract from grapevine canes containing 27% (w/w) of total stilbenes and the major ones isolated from this extract (E-piceatannol, E-resveratrol, isohopeaphenol, E-?-viniferin and E-vitisin B). The stilbenes isolated from the grapevine extract did not show any significant antifeedant effect or acute toxicity, but they did cause chronic mortality to the larvae population of an important polyphagous pest, S. littoralis. The tetramer, E-vitisin B, appeared to be the most effective compound with LC50 and LC90 values of 134 and 298 µg cm-2, respectively. Significant synergic relationships were found between some stilbenes, resulting in a significant increase in the insecticidal efficacy of the mixture of these substances. Taken together, these results suggest that grapevine canes are a good source of active substances for the development of botanical insecticides.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/TA04020103" target="_blank" >TA04020103: Vývoj nových, environmentálně bezpečných přípravků na ochranu rostlin</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Pest Science

ISSN

1612-4758

e-ISSN

—

Svazek periodika

90

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

961-970

Kód UT WoS článku

000401267600016

EID výsledku v databázi Scopus

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