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A Wolbachia strain in the flour moth, Ephestia kuehniella, causes moderate cytoplasmic incompatibility but has little impact on host fitness
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-17 DOI: 10.1016/j.jspr.2025.102577
Jing Zhao , Joshua A. Thia , Qiong Yang , Jasmeen Kaur , Hareem Qazi , Perran A. Ross , Ary A. Hoffmann
{"title":"A Wolbachia strain in the flour moth, Ephestia kuehniella, causes moderate cytoplasmic incompatibility but has little impact on host fitness","authors":"Jing Zhao ,&nbsp;Joshua A. Thia ,&nbsp;Qiong Yang ,&nbsp;Jasmeen Kaur ,&nbsp;Hareem Qazi ,&nbsp;Perran A. Ross ,&nbsp;Ary A. Hoffmann","doi":"10.1016/j.jspr.2025.102577","DOIUrl":"10.1016/j.jspr.2025.102577","url":null,"abstract":"<div><div>The flour moth, <em>Ephestia kuehniella</em> Zelter 1979 (Pyralidae: Phycitinae) is well known as a pest of stored products and serves as an important host for parasitoids in commercial rearing. In this study, we detected and characterized a <em>Wolbachia</em> infection in <em>E. kuehniella</em> from a local Australian commercial strain used to rear parasitoids. Identification of <em>Wolbachia</em> by PCR and a phylogenetic reconstruction using the <em>wsp</em> gene showed that the <em>Wolbachia</em> strain belongs to Supergroup A. After generating a cured line, we found that flour moths from this commercial line suffered partial cytoplasmic incompatibility, where around 50% of eggs hatched in incompatible crosses. The infection did not generate large host fitness effects once inbreeding and maternal effects were controlled. This contrasts with previous studies demonstrating costs of <em>Wolbachia</em>, suggesting that <em>Wolbachia</em> strains in the flour moth may have different fitness effects depending on the strain or host genotype. This research suggests that commercial insectaries do not gain much by clearing <em>Wolbachia</em> from their production stocks but should be mindful of inbreeding depression when establishing cultures.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102577"},"PeriodicalIF":2.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gut bacteria-mediated regulation of pheromone synthesis in Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) via TcFAS1 modulation
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-17 DOI: 10.1016/j.jspr.2025.102589
Lizhen Zhou , Zhengyan Wang , Qiong Luo , Mengting He , Xin Du , Yonglin Ren
{"title":"Gut bacteria-mediated regulation of pheromone synthesis in Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) via TcFAS1 modulation","authors":"Lizhen Zhou ,&nbsp;Zhengyan Wang ,&nbsp;Qiong Luo ,&nbsp;Mengting He ,&nbsp;Xin Du ,&nbsp;Yonglin Ren","doi":"10.1016/j.jspr.2025.102589","DOIUrl":"10.1016/j.jspr.2025.102589","url":null,"abstract":"<div><div>Our previous research has revealed that gut bacteria enhance male attractiveness to females by promoting pheromone 4,8-dimethyldecanal (4,8-DMD) production in <em>Tribolium castaneum</em> (Herbst) (Coleoptera: Tenebrionidae). However, its underlying mechanism remains largely unknown. Symbionts influence insect pheromone synthesis in both direct and indirect manners. Since the sites of 4,8-DMD synthesis are located far from the gut, and spatial remoteness precludes direct pheromone synthesis by gut bacteria. Therefore, this study hypothesizes that gut bacteria regulate pheromone synthesis of <em>T</em>. <em>castaneum</em> by modulating the expression of related genes. To verify this hypothesis, axenic and gnotobiotic male beetles were established, and <em>Escherichia coli</em>, a key gut bacterium essential for growth and development of <em>T</em>. <em>castaneum</em>, was selected as the target symbiont. Further, transcriptome analysis was performed to examine the effect of <em>E. coli</em> on the expression levels of genes related to pheromone synthesis in <em>T</em>. <em>castaneum</em> and the fatty acid synthesis gene was identified as the target gene. Knockdown of <em>TcFAS1</em> resulted in a reduction of 4,8-DMD production in <em>E. coli</em>-gnotobiotic male beetles. These results suggest that <em>E. coli</em> regulates pheromone synthesis of <em>T</em>. <em>castaneum</em> by mediating the expression of <em>TcFAS1</em>. It is the first time to investigate symbiont-induced pheromone biosynthesis in <em>T. castaneum</em>, and provides a novel strategy for pest management by utilizing antibiotics or RNA interference techniques to disrupt insect mating communication and to control pest populations.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102589"},"PeriodicalIF":2.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insecticidal effects of substances from cinnamon bark – eugenol, trans-cinnamaldehyde and cinnamaldehyde on Tenebrio molitor (Coleoptera: Tenebrionidae)
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-17 DOI: 10.1016/j.jspr.2025.102572
Aleksandra Dzięgelewska , Jan Lubawy , Zbigniew Adamski
{"title":"Insecticidal effects of substances from cinnamon bark – eugenol, trans-cinnamaldehyde and cinnamaldehyde on Tenebrio molitor (Coleoptera: Tenebrionidae)","authors":"Aleksandra Dzięgelewska ,&nbsp;Jan Lubawy ,&nbsp;Zbigniew Adamski","doi":"10.1016/j.jspr.2025.102572","DOIUrl":"10.1016/j.jspr.2025.102572","url":null,"abstract":"<div><div>The use of synthetic pesticides is increasingly limited due to their environmental impact, development of pest resistance, and confirmed negative effects on human health. At the same time, the demand for food grown in accordance with the principles of organic farming is increasing. Integrated Pest Management (IPM) promotes the use of biopesticides - natural substances with low toxicity to nontarget species as alternatives to synthetic pesticides. These substances include, among others, compounds found in the bark of the Ceylon cinnamon tree (<em>Cinnamomum verum</em> J. Presl, Lauraceae), such as eugenol, <em>trans</em>-cinnamaldehyde and cinnamaldehyde. However, the mechanism of their action has not been sufficiently researched<em>.</em> Therefore, this study compared the effects of these substances and various modes of their application on important pests of cereal crops and food stores and on a model organism, <em>Tenebrio molitor</em> beetle (Coleoptera: Tenebrionidae). The tested compounds were administered by injection, inhalation, food, by immersing the tested larvae or by contacting them with substratum soaked in the tested compound. The results allowed us to determine the LT<sub>50</sub> parameter, and the probit analysis estimated the LC<sub>20/30/50/95</sub> values. The results showed that the most effective route for administering cinnamon bark compounds is contact and injection, and the most effective compound is eugenol, with an LC<sub>50</sub> value of 2.01 μl/ml (contact). The lowest LC<sub>50</sub> values for <em>trans</em>-cinnamaldehyde and cinnamaldehyde were 6.28 μl/ml (injection) and 15.66 μl/ml (contact), respectively. Second, cinnamaldehyde and <em>trans</em>-cinnamaldehyde (filter paper tests at 200 μl/ml) and eugenol (immersion test at 300 μl/ml) had the lowest LT<sub>50</sub> values. The test results also indicate that all the tested compounds cause morphological malformations in <em>T. molitor</em> larvae in the concentration range of 50–300 μl/ml. This research highlights the insecticidal potential of eugenol and cinnamaldehydes, indicating that cinnamon bark-derived pesticides could effectively control <em>T</em>. <em>molitor</em> populations. These compounds are promising for developing eco-friendly biopesticides.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102572"},"PeriodicalIF":2.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal death kinetics of pests in tobacco leaves as influenced by heating rates and life stages
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-17 DOI: 10.1016/j.jspr.2025.102591
Jinsong Zhang , Xin Ye , Zijun Mo , Hongwei Wang , Xican Gu , Jiaqin Xi , Rui Li , Shaojin Wang
{"title":"Thermal death kinetics of pests in tobacco leaves as influenced by heating rates and life stages","authors":"Jinsong Zhang ,&nbsp;Xin Ye ,&nbsp;Zijun Mo ,&nbsp;Hongwei Wang ,&nbsp;Xican Gu ,&nbsp;Jiaqin Xi ,&nbsp;Rui Li ,&nbsp;Shaojin Wang","doi":"10.1016/j.jspr.2025.102591","DOIUrl":"10.1016/j.jspr.2025.102591","url":null,"abstract":"<div><div>Thermal death kinetics of insects are essential for developing effective disinfestation protocols using heating treatments. The thermal resistance of <em>Lasioderma serricorne</em> (F.) (Coleoptera: Anobiidae) and <em>Ephestia elutella</em> (Hübner) (Lepidoptera: Pyralidae) under different life stages were compared using a heating block system (HBS) and the more resistant pest and life stage were selected for further establishing the thermal death kinetic model at four temperatures under a specified heating rate. The results indicated that when the two target pests were in the same life stage, the tobacco beetle was more heat-tolerant than the tobacco moth and selected for the following thermal death kinetic studies. With the stronger heat tolerance than that of adults and eggs, the mortality rate of tobacco beetle larvae was determined as influenced by the 5 heating rates, showing that the heating rate of 5 °C/min resulted in higher mortality as compared to 0.1 or 0.5 °C/min and similar mortality to 1 and 10 °C/min, and selected for further studies to effectively simulate rapid radio frequency heating. The 0th-order kinetic response model was more suitable for describing thermal death curves of <em>L. serricorne</em> larvae. The minimum holding time required to kill all the test pests was 48, 28, 8, and 2 min at 51, 53, 55, and 57 °C, respectively. The activation energy required to eliminate <em>L. serricorne</em> was calculated to be 553.8 kJ/mol. The information gained from this study is instrumental in designing efficient heat treatment protocols for disinfesting tobacco leaves.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102591"},"PeriodicalIF":2.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing phosphine applications for insect control in Bagged rice stored in Indian warehouses
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-16 DOI: 10.1016/j.jspr.2025.102584
Sumitra Arora , Naveenkumar Patil , Totan Adak , Mayabini Jena , Chitra Srivastava
{"title":"Optimizing phosphine applications for insect control in Bagged rice stored in Indian warehouses","authors":"Sumitra Arora ,&nbsp;Naveenkumar Patil ,&nbsp;Totan Adak ,&nbsp;Mayabini Jena ,&nbsp;Chitra Srivastava","doi":"10.1016/j.jspr.2025.102584","DOIUrl":"10.1016/j.jspr.2025.102584","url":null,"abstract":"<div><div>Phosphine, considered a viable substitute for methyl bromide amid its global phase-out, requires assessment for fumigation efficacy in India due to limited reports on its field applications. This study assessed phosphine's effectiveness against stored grain insects by stacking 150 tonnes of rice into 30 stacks (5 tonnes each), replicated thrice with including same number of controls. Target insects included <em>Tribolium castaneum</em> (Herbst, 1797) (Coleoptera: Tenebrionidae), <em>Sitophilus oryzae</em> (Lin, 1763) (Coleoptera: Curculionidae), and <em>Rhyzopertha dominica</em> (Fab, 1792) (Coleoptera: Bostrichidae) across three locations. Two aluminium phosphide (AlP) formulations (56% at 2 and 3 tablets/tonne; 77.5% granule at 1.0 and 1.5 g phosphine/m³) were tested with 7- and 10-day exposures at all locations. Insects were monitored for 60 days post-treatment, achieving 100% mortality except for the field population of <em>T. castaneum</em> at Cuttack. Phosphine at 500–700 ppm could effectively control all insect stages in untreated infested grains at 1.5 g/m³ phosphine gas following 7 days exposure at 28–36 °C and 52–80% humidity. Cumulative Ct values ranged from 264 to 332 g h/m³, with 15–16% gas dissipation across locations. Phosphine proved effective for rice storage pest control.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102584"},"PeriodicalIF":2.7,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Storage-induced changes in soybean seeds: Germination, nutritional value, and bioactive compounds
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-16 DOI: 10.1016/j.jspr.2025.102578
Hakan Kibar, Hakkı Ekrem Soydemir
{"title":"Storage-induced changes in soybean seeds: Germination, nutritional value, and bioactive compounds","authors":"Hakan Kibar,&nbsp;Hakkı Ekrem Soydemir","doi":"10.1016/j.jspr.2025.102578","DOIUrl":"10.1016/j.jspr.2025.102578","url":null,"abstract":"<div><div>The quality attributes of soybean seeds (<em>Glycine max</em> L.) depend on factors such as genetics, environmental conditions, and the storage techniques used. The quality changes as phenolic acid, flavonoid, mineral composition, color and germination properties of soybean seeds stored at different temperatures (10, 15, 20 and 25 °C) for 360 days were investigated. Soybean seeds, renowned for their nutritional value, are significantly impacted by storage conditions which affect their viability and quality. Seed moisture content varied significantly with storage duration (SD) and temperature (ST), and their interaction (SD × ST), showing fluctuations from 5.43% to 13.1%. Germination parameters were notably impacted by SD and the SD × ST interaction, but less so by ST alone. The highest germination percent was observed at 180 days and 15 °C, while the lowest germination speed occurred at 360 days and 25 °C. Gallic acid levels generally increased over time, while catechin and quercetin concentrations decreased with prolonged storage and higher temperatures. The study's results underscore the critical role of storage conditions in maintaining soybean seed quality. Optimal storage practices, particularly maintaining controlled temperatures and minimizing storage duration, are essential for preserving the seeds' nutritional and germination properties. Considering all the examined parameters, it can be said that 10 and 15 °C temperatures are more suitable for preserving quality properties.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102578"},"PeriodicalIF":2.7,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AI-driven grain storage solutions: Exploring current technologies, applications, and future trends
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-16 DOI: 10.1016/j.jspr.2025.102588
T. Anukiruthika , D.S. Jayas
{"title":"AI-driven grain storage solutions: Exploring current technologies, applications, and future trends","authors":"T. Anukiruthika ,&nbsp;D.S. Jayas","doi":"10.1016/j.jspr.2025.102588","DOIUrl":"10.1016/j.jspr.2025.102588","url":null,"abstract":"<div><div>The integration of artificial intelligence (AI) and machine learning (ML) technologies is revolutionizing the food grain industry, particularly in the storage and quality management. This work provides a comprehensive review on the integration of AI and ML in the food grain industry, focusing on current technologies, applications, and future advancements. Various AI technologies including artificial neural networks (ANNs), fuzzy logic systems, and ML methods such as deep learning, supervised learning, and anomaly detection have been discussed. The practical applications of these technologies in addressing critical areas such as pest and insect damage detection, grain classification, crop disease detection, mycotoxin contamination, and supply chain management are highlighted. Applications of innovative technological approaches, including edge computing, digital twins, Internet of Things (IoT), and blockchain, have been discussed for their impact on enhancing grain storage quality management. The review also critically examines the challenges and limitations associated with AI and ML, such as data privacy, inaccuracies, and regulatory concerns. In addition, the emerging trends that are set to revolutionize grain quality management such as smart sensors, robotics, remote sensing, and augmented reality are discussed. By synthesizing current knowledge and future prospects, this review aims to provide a holistic understanding of AI's transformative potential in the grain industry.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102588"},"PeriodicalIF":2.7,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adulticidal efficacy of silica nanoparticles synthesized from Phyllanthus emblica and Punica granatum against Callosobruchus chinensis (Linnaeus, 1758) (Coleoptera:Chrysomelidae)
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-16 DOI: 10.1016/j.jspr.2025.102586
Kiran Meena , Neetu Kachhwaha , Vareesh Baghela , Sumita Kachhwaha , Shilpa Yadav , Muskan Kachhwaha
{"title":"Adulticidal efficacy of silica nanoparticles synthesized from Phyllanthus emblica and Punica granatum against Callosobruchus chinensis (Linnaeus, 1758) (Coleoptera:Chrysomelidae)","authors":"Kiran Meena ,&nbsp;Neetu Kachhwaha ,&nbsp;Vareesh Baghela ,&nbsp;Sumita Kachhwaha ,&nbsp;Shilpa Yadav ,&nbsp;Muskan Kachhwaha","doi":"10.1016/j.jspr.2025.102586","DOIUrl":"10.1016/j.jspr.2025.102586","url":null,"abstract":"<div><div>The global production of legumes and other economically important food crops and cash crops is severely jeopardized because unfavorable biotic and abiotic stressors play a crucial role in undermining global agricultural production. The current study attempted to address the situation of a global decline in legume production and storage due to infestation by <em>Callosobruchus chinensis</em> (Linnaeus, 1758)(Coleoptera:Chrysomelidae) an obnoxious pest that threatens post-harvest storage, leading to a decline in both their quantity and quality. The experiment showcased the comparison of green silica nanoparticles (GSiO<sub>2</sub>NPs) synthesized from aqueous leaf extracts of <em>Phyllanthus emblica</em> L. (Phyllanthaceae) and <em>Punica granatum</em> L. (Lythraceae) commonly known as amla &amp; anar. These GSiO<sub>2</sub>NPs were compared with chemically synthesized NPs, leaf extract, and untreated group. The characterization results of GSiO<sub>2</sub>NPs determined to be nanosized within 30–80 nm (FESEM), exhibiting sharp peaks centered at 2Ɵ (XRD), strong signal peaks corresponding to silicon (EDX), and zeta values below −25 mV (Zeta Potential). Five pairs of adult <em>C. chinensis</em> were released into <em>Vigna angularis</em> (Fabaceae) seeds treated with varying amounts of GSiO<sub>2</sub>NPs (5 ppm, 20 ppm, 35 ppm, 50 ppm, and 70 ppm). Highest adult mortality on the seventh day (86.65%), and least seed damage (15.36%) and seed weight loss (8.26%) on the 14th day were observed when treated with 70 ppm SiO<sub>2</sub>NPs synthesized with <em>P. emblica</em> extract. Both two biosynthesized SiO<sub>2</sub>NPs demonstrated the protection of seed grains from the test insect, offering an alternative pest control strategy for grain quality preservation.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102586"},"PeriodicalIF":2.7,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The advantage of virginity in cold-exposed Callosobruchus maculatus
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-14 DOI: 10.1016/j.jspr.2025.102590
Azam Amiri , Ali R. Bandani
{"title":"The advantage of virginity in cold-exposed Callosobruchus maculatus","authors":"Azam Amiri ,&nbsp;Ali R. Bandani","doi":"10.1016/j.jspr.2025.102590","DOIUrl":"10.1016/j.jspr.2025.102590","url":null,"abstract":"<div><div>Understanding the influence of environmental stressors on pest reproduction is critical for effective management strategies, particularly in a changing climate. This study investigates the reproductive output and biological parameters of the cold-exposed cowpea weevil, <em>Callosobruchus maculatus</em>, focusing on the effects of keeping insects virgin during cold exposure versus allowing copulation before exposure. Newly emerged adults were exposed to either optimal (30 °C) or cold (4 °C) temperatures for four days. Virgin insects copulated after treatment termination. By manipulating temperature treatments and mating status, we investigated how these factors affected a suite of life-history traits, including longevity, egg number, hatch percentage, adult emergence, and mating behaviors. Our findings demonstrate that virginity substantially extends longevity in both sexes under normal temperatures. We observed a trade-off between survival and reproduction in virgin cold-exposed <em>C. maculatus</em>. Mating status (virginity or being mated) during cold exposure did not affect males' and females' longevity; however, it influenced reproduction output. Notably, cold-exposed females that were virgin during cold exposure laid more total eggs (212.28) in their life and these eggs had a higher hatchability (91.60%) than eggs of insects that were copulated during cold exposure (112.67 eggs and 78.79% hatchability). Although cold exposure in males and females can extend the adult lifespan, it considerably reduces reproductive success. Mating trials showed that cold stress strongly reduced mating success, with cold-exposed females showing increased rejection rates and altered copulation duration. These results indicate a vital role for mating status in determining reproductive outcomes under environmental stress. Future research should explore the applicability of these findings to other pest species and develop adaptive pest management strategies.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102590"},"PeriodicalIF":2.7,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of temperature and storage duration on chickpea quality, extraction yield and the functional properties of isolated protein
IF 2.7 2区 农林科学
Journal of Stored Products Research Pub Date : 2025-02-13 DOI: 10.1016/j.jspr.2025.102580
Frederico Boff Hofstatter, Eloisa Backes da Silveira, Vitória Thais Dalla Vecchia dos Santos, Lucas Cavagnoli Marcolin, Diego Santiago Tupuna-Yerovi, Cristiano Dietrich Ferreira, Valmor Ziegler
{"title":"Effects of temperature and storage duration on chickpea quality, extraction yield and the functional properties of isolated protein","authors":"Frederico Boff Hofstatter,&nbsp;Eloisa Backes da Silveira,&nbsp;Vitória Thais Dalla Vecchia dos Santos,&nbsp;Lucas Cavagnoli Marcolin,&nbsp;Diego Santiago Tupuna-Yerovi,&nbsp;Cristiano Dietrich Ferreira,&nbsp;Valmor Ziegler","doi":"10.1016/j.jspr.2025.102580","DOIUrl":"10.1016/j.jspr.2025.102580","url":null,"abstract":"<div><div>Chickpea consists of proteins, minerals, vitamins, fiber, and phytochemicals that are beneficial for health, besides being a source of energy. The quality of the grain is directly influenced by storage conditions, with temperature and time being the main factors responsible for most changes. This study aimed to evaluate the effect of temperature (15, 20, 25, and 30 °C) and storage time (0, 2, 4, and 6 months) on the physicochemical parameters, bioactive compounds, and antioxidant activity of chickpeas, and functional properties of protein isolate. The results indicated that increasing temperature and storage time caused significant effects (p &lt; 0.05) on physical-chemical parameters. There was an increase in solubility and foam formation and a reduction in the emulsification index of the chickpea protein isolate as a function of temperature and time. Based on our evaluation, a temperature of 15 °C produces the least changes in the measured parameters.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102580"},"PeriodicalIF":2.7,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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