Comparative analysis of hidden damage caused by the stem borer Ceutorhynchus species in oilseed rape using computer tomography

Agricultural and Forest Entomology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Abstract The weevils of the Ceutorhynchus (Coleoptera: Curculionidae) are significant pests, posing a threat to oilseed rape cultivation in Central Europe. Due their lifestyle, these cause hidden damage within stems. Our non‐invasive computer tomography‐based study aimed compare characteristics three species this genus: C. pallidactylus (Marsham), napi (Gyll.), and picitarsis During CT analysis plant samples from axial, coronal, sagittal approaches at different points, we measured length damaging larvae, number per plant, distance each other, volume formed cavity, diameter damaged Additionally, investigated closeness connections between forms damage. found that during period interest was species‐specific. Significant differences were observed longitudinal size dimensions cavities, diameters stems attacked plants among causing Pearson correlation results confirmed strong volumes cavities values larval (l) stem (⌀), as well data for (C. : l = 6.903 ± 1.332 mm, ⌀ 11.43 0.707 mm; 9.868 0.617 23.11 2.813 3.772 0.967 11.16 0.365 mm). These suggest damages caused by lifestyle pests

Language: Английский

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A protocol for increased throughput phenotyping of plant resistance to the pollen beetle

Pest Management Science, Journal Year: 2022, Volume and Issue: 80(5), P. 2235 - 2240

Published: Oct. 30, 2022

Abstract BACKGROUND Improving crop resistance to insect herbivores is a major research objective in breeding programs. Although genomic technologies have increased the speed at which large populations can be genotyped, programs still suffer from phenotyping constraints. The pollen beetle ( Brassicogethes aeneus ) pest of oilseed rape for no resistant cultivar available date, but previous studies highlighted potential white mustard as source and introgression this appears promising strategy. Here we present protocol allowing mid‐throughput i.e. , throughput compared current methods) acquisition data, could then used genetic mapping QTLs. RESULTS Contrasted genotypes were selected an initial field screening evaluated their under controlled conditions using standard method on entire plants. We upgraded phenotyping, by testing two alternative methods. found that detached buds did not provide same contrasts observed with protocol, contrast miniaturized This was tested panel composed hundreds A significant variation among observed, validates large‐scale application new protocol. CONCLUSION combination against offers avenue aiming improve resistance. © 2022 Authors. Pest Management Science published John Wiley & Sons Ltd behalf Society Chemical Industry.

Language: Английский

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Justification of the criteria for assessing the efficiency of adaptive technologies of growing entomocultures

Visnyk agrarnoi nauky, Journal Year: 2023, Volume and Issue: 101(5), P. 65 - 70

Published: May 15, 2023

Goal. To justify the criteria for evaluating effectiveness of adaptive technologies growing entomocultures, which take into account qualitative indicators insects, ecological, economic, and energy-economical system are based on introduction energy-efficient technological elements. Methods. The assessment entomocultures in comparison with regulatory ones was carried out involvement method current express analysis their ecological impact environment Life Cycle Assessment. Results. Four entomological production were formed, made it possible to evaluate efficiency functioning equipment according main indicators, feasibility use substantiated. criterion assessing quality insects took target that determined degree entomoculture. economic type microclimate used implement technologies. energy evaluated three components: standardized products, processes, saving implementation. Modern methodology Assessment environmental Conclusions. substantiated recommended use. developed design (on example grain moth), which, compared ones, improve by 20%, — 50%, 15%.

Language: Английский

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Genome-Wide Identification of Brassica napus PEN1-LIKE Genes and Their Expression Profiling in Insect-Susceptible and Resistant Cultivars

Current Issues in Molecular Biology, Journal Year: 2022, Volume and Issue: 44(12), P. 6385 - 6396

Published: Dec. 15, 2022

Recently, it has been reported that a gene (PEN1) in Arabidopsis thaliana is highly resistant to Plutella xylostella. We screened all the homologous genes of PEN1 and found motif these was very conserved. At present, few insect resistance have identified characterized Brassica napus. Therefore, we containing this napus genome systematically analyzed basic information, conserved domain, evolutionary relationship, chromosomal localization expression analysis genes. In study, 12 were genome, which more than number thaliana. These are unevenly distributed on chromosomes Furthermore, contained light responsiveness elements, most gibberellin-responsive meJA-responsive elements abscisic-acid-responsive elements. The results will provide theoretical basis for screening from analyzing molecular mechanism

Language: Английский

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