The semi-isolated heart bioassay was used to evaluate the effect of glycoalkaloids extracted from potato leaves on the heart contractile activity of three beetle species Zophobas atratus, Tenebrio molitor and Leptinotarsa decemlineata. The dose-response curves indicated species specific action of tested substances. Application of glycoalkaloids on the continuously perfused Z. atratus heart inhibited progressively frequency contractions; higher concentrations exerted short and reversible cardiac arrests. In the rest two beetle species tested glycoalkaloids caused no cardiotropic effect. In vivo bioassay with 1 day old Z. atratus pupae showed that the extract induces a negative inotropic effect on the heart.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00128-009-9921-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Characterizing Pathogen-Induced Changes in Black Walnut Volatile Organic Compounds Following Inoculation with Geosmithia Morbida, The Causal Agent of Thousand Cankers Disease.
J Chem Ecol
January 2025
Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN, USA.
Thousand cankers disease (TCD) is a pathosystem comprised of Juglandacea spp., a pathogenic fungus Geosmithia morbida, and an insect vector, the walnut twig beetle (WTB) (Pityophthorus juglandis). Of the North American Juglans species, Juglans nigra is the most susceptible to TCD and has resulted in significant decline and mortality of urban and plantation trees in the western United States.
View Article and Find Full Text PDFNeonicotinoid exposure causes behavioral impairment and delayed mortality of the federally threatened American burying beetle, Nicrophorus americanus.
PLoS One
January 2025
Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK, United States of America.
Among the most immediate drivers of American burying beetle (Nicrophorus americanus Olivier) declines, nontarget toxicity to pesticides is poorly understood. Acute, episodic exposure to neonicotinoid insecticides at environmentally relevant concentrations is linked to negative impacts on beneficial terrestrial insect taxa. Beyond mortality, behavioral indicators of toxicity are often better suited to assess sublethal effects of residual concentrations in the environment.
View Article and Find Full Text PDFImpact of climate change on the distribution of the citrus longhorned beetle Anoplophora chinensis (Coleoptera: Cerambycidae) and its host plants, Castanea mollissima and Castanea seguinii: a predictive analysis using optimized MaxEnt models.
J Econ Entomol
January 2025
Institute of Entomology, College of Agriculture, Yangtze University, Jingzhou, China.
The Anoplophora chinensis (Coleoptera: Cerambycidae) (Forster), a serious phytophagous pest threatening Castanea mollissima Blume and Castanea seguinii Dode, poses risks of ecological imbalance, significant economic loss, and increased management difficulties if not properly controlled. This study employs optimized MaxEnt models to analyze the potential distribution areas of A. chinensis and its host plants under current and future climate conditions, identifying their movement pathways and relative dynamics.
View Article and Find Full Text PDFA female sterilization method for use in field-based behavioral studies of the invasive Asian longhorned beetle (Anoplophora glabripennis).
J Insect Sci
January 2025
Northern Research Station, U.S. Forest Service, United States Department of Agriculture, Hamden, CT, USA.
Asian longhorned beetle (Anoplophora glabripennis Motschulsky), a wood borer (Coleoptera: Cerambycidae) native to China, has been unintentionally and repeatedly introduced to North American and European landscapes as a stow-away in the wood packing material commonly used in international trade. Asian longhorned beetle causes extensive damage and mortality in multiple deciduous tree species and in response, countries in both North America and Europe have adopted policies of eradication. Models that integrate patterns of Asian longhorned beetle dispersal with records of infested trees are critical in optimizing survey and eradication efforts and tracking eradication progress.
View Article and Find Full Text PDFPhylogenetic classification and physiological and ecological traits of spp.
Mycoscience
August 2024
Laboratory of Insect Pathology and Microbial Control, Institute of Biological Control, Faculty of Agriculture, Kyushu University.
The genus (: ) is mostly composed of entomopathogenic fungal species. Many of these species are anamorphic and difficult to distinguish morphologically. Furthermore, most isolates of this genus have a broad host range, making classification based on host-insect species uncertain.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!