Root elongation test on seeds of Sinapis alba reveals toxicity of extracts from thirteen colour forms of the Asian multi-coloured ladybird, Harmonia axyridis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00568339" target="_blank" >RIV/60077344:_____/23:00568339 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/23:43906413
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1111/eea.13271" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/eea.13271</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/eea.13271" target="_blank" >10.1111/eea.13271</a>
Alternative languages
Result language
angličtina
Original language name
Root elongation test on seeds of Sinapis alba reveals toxicity of extracts from thirteen colour forms of the Asian multi-coloured ladybird, Harmonia axyridis
Original language description
Ladybirds (Coleoptera: Coccinellidae) use toxic compounds such as alkaloids in their hemolymph to defend against predators and pathogens. Direct measurement of their toxicity to predators is unavailable as predators show various avoidance reactions without eating the beetles. Because inhibition by harmonine the alkaloid of the alien invasive ladybird Harmonia axyridis (Pallas) was observed in many organisms, its toxicity can also be tested on various non-target organisms. This is the first study examining ladybird alkaloid toxicity to plants. We used a quick, inexpensive, and easy-to-perform method to quantify the phytotoxicity of 13 strains of H. axyridis, representing natural colour forms and spontaneous laboratory mutations. We used the seed germination rate and root elongation of seedlings of Sinapis alba L. (Brassicaceae). Following a logistic curve, root length decreased with increasing concentration of the extract from adult beetles. The effect of extracts from the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) (negative control) did not differ from the control (water). Extract from the lesser mealworm Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae) (positive control) decreased the root length to about half of that of the negative control. Extract from young ladybirds (1 week old) decreased the root length to about one-third of the control and the extract from 3-month-old ladybirds to one-10th. Differences in toxicity among all 13 strains were minor and not consistent for the two age cohorts.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10616 - Entomology
Result continuities
Project
<a href="/en/project/GA20-10003S" target="_blank" >GA20-10003S: How ladybirds got their spots: Genetics and ecology of colouration of Coccinellidae</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Entomologia Experimentalis et Applicata
ISSN
0013-8703
e-ISSN
1570-7458
Volume of the periodical
171
Issue of the periodical within the volume
JAN 2023
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
186-195
UT code for WoS article
000913559800001
EID of the result in the Scopus database
2-s2.0-85146994645