Arthropod pests of rapeseed (canola) (Brassica napus L.)

Edde, Peter A.

doi:10.1016/b978-0-12-818621-3.00004-5

Cited by 5 publications

(7 citation statements)

References 113 publications

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“…The potential functions of aestivation may include synchronization with the life cycle of host plants, avoidance of predators or parasitoids, and resistance to abiotic factors associated with summer, such as high temperature and low humidity (Masaki, 1980; Saulich and Musolin, 2018). P. chrysocephala adults are small in size (3-4 mm) (Edde, 2022) and consequently have large surface-area-to-volume ratios, suggesting an increased risk of desiccation during the summer season (Kühsel et al, 2017). Our current study provides evidence supporting the idea that a critical function of aestivation is the mitigation of increased desiccation risk.…”

Section: Discussionmentioning

confidence: 99%

Physiological and transcriptional changes associated with obligate aestivation in the cabbage stem flea beetle (Psylliodes chrysocephala)

Guney,

Cedden,

Koernig

et al. 2024

Preprint

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Aestivation is a form of seasonal dormancy observed in various insect species, usually coinciding with the summer season. Psylliodes chrysocephala (Coleoptera: Chrysomelidae), the cabbage stem flea beetle, is a key pest of oilseed rape and obligatorily aestivates as adult in late summer. At present, our understanding of the physiological and transcriptional changes linked to aestivation in P. chrysocephala is still limited. In this study, physiological parameters and RNA-seq analyses were performed with laboratory-reared beetles at pre-aestivation, aestivation, and post-aestivation stages. Measurements of CO2 production supported the notion that aestivating beetles dramatically reduce their metabolic rate and, together with assessments of reproductive maturation, allowed precise discrimination between the three adult stages. Aestivating beetles showed a reduction in carbohydrate reserves and an increase in lipid reserves compared to pre-aestivating beetles, indicating that aestivation is associated with drastic changes in energy metabolism. In agreement with these findings, we found that genes involved in carbohydrate and lipid metabolism, digestion, and mitochondrial activity are differentially expressed between the three stages. Furthermore, RNA-seq analysis suggested the regulation of transcription factors associated with aestivation maintenance and the involvement of cytochrome P450s in conferring a summer-resistant phenotype during the aestivation period. In conclusion, this study represents the first exploration of the transcriptomic and physiological aspects of the aestivation response in P. chrysocephala.

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Section: Discussionmentioning

confidence: 99%

Physiological and transcriptional changes associated with obligate aestivation in the cabbage stem flea beetle (Psylliodes chrysocephala)

Guney,

Cedden,

Koernig

et al. 2024

Preprint

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“…In addition, they can cause losses in oil content and quality, increase GSL content, reduce protein content and quality, and affect seed germination and vigor (Canola Council of Canada, 2020). Some of the major pests and diseases of B. napus are flea beetles, cutworms, diamondback moths, cabbage seedpod weevils, root maggots, Sclerotinia stem rot, blackleg, clubroot, and Alternaria black spot [82,83]. However, the diversity of species and the degree of infestation can vary widely between different countries.…”

Section: Environmental Factorsmentioning

confidence: 99%

Factors Affecting the Quality of Canola Grains and Their Implications for Grain-Based Foods

Sabbahi

Azzaoui

Rhazi

et al. 2023

Foods

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Canola, Brassica napus L., is a major oilseed crop that has various uses in the food, feed, and industrial sectors. It is one of the most widely produced and consumed oilseeds in the world because of its high oil content and favorable fatty acid composition. Canola grains and their derived products, such as canola oil, meal, flour, and bakery products, have a high potential for food applications as they offer various nutritional and functional benefits. However, they are affected by various factors during the production cycle, post-harvest processing, and storage. These factors may compromise their quality and quantity by affecting their chemical composition, physical properties, functional characteristics, and sensory attributes. Therefore, it is important to optimize the production and processing methods of canola grains and their derived products to ensure their safety, stability, and suitability for different food applications. This literature review provides a comprehensive overview of how these factors affect the quality of canola grains and their derived products. The review also suggests future research needs and challenges for enhancing canola quality and its utilization in food.

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“…Sweep net sampling is excellent for determining species' existence and abundance in the field, but it does not provide a reliable estimate of larval density (Edde, 2022). In addition, the weakness in terms of methods applied by previous researchers was the relatively short study period.…”

Section: Factors Influencing Firefly Population Abundancementioning

confidence: 99%

Some Abiotic and Biotic Factors Influencing Firefly Population Abundance in Southeast Asia: A Review

Seri¹,

Rahman²,

Kassim³

2022

JST

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This paper reviews biotic and abiotic factors that influence the life cycle of fireflies. This review paper has screened and chosen articles by using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) from two databases: Semantic Scholar (n = 1080) and Google Scholar (n = 2280). From this review, generally, abiotic factors, i.e., water level in soil, air temperature, air humidity, rainy season, altitude, water salinity (NaCl), wind direction, wind speed, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), ammonia nitrogen (NH3-N) and maximum air pollution index (API) were most likely influenced the population abundance and distribution of the fireflies in Southeast Asia. Biotic factors include the presence of <i>Cyclotropis carinata</i> snails, vegetation health, tree suitability (leaf size, density, arrangement of leaves, tree location), insecticides (Saponins) in some vegetation species, plant structural architecture, and food (nectar and sap) were the most likely to influence the presence of fireflies species even though synchronous firefly of Southeast Asia were found in other vegetation species, <i>Sonneratia caseolaris</i> (Berembang) still the most preferred display tree. From this review, we also found that Malaysia has the highest reported findings on firefly studies in this region. To conclude, numerous abiotic and biotic elements should be researched further to determine their relationship to firefly populations and other vertebrate - invertebrates in their natural environment.

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Arthropod pests of rapeseed (canola) (Brassica napus L.)

Cited by 5 publications

References 113 publications

Physiological and transcriptional changes associated with obligate aestivation in the cabbage stem flea beetle (Psylliodes chrysocephala)

Physiological and transcriptional changes associated with obligate aestivation in the cabbage stem flea beetle (Psylliodes chrysocephala)

Factors Affecting the Quality of Canola Grains and Their Implications for Grain-Based Foods

Some Abiotic and Biotic Factors Influencing Firefly Population Abundance in Southeast Asia: A Review

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