{"title":"Effect of the medicinal plant Withania somnifera on the development of a medico-veterinary pest Chrysomya megacephala (Diptera: Calliphoridae)","authors":"S. Gaur, Krishna Kumar","doi":"10.1080/07924259.2021.1929519","DOIUrl":"https://doi.org/10.1080/07924259.2021.1929519","url":null,"abstract":"ABSTRACT Topical administration of root and seed extracts (5, 10, 15 and 20 µg/µL) of Withania somnifera to 0, 1, 2, and 3 days post-moult third instar larvae of Chrysomya megacephala resulted in disruption of moulting and metamorphosis. This leads to several developmental aberrations, such as prolongation of larval-pupal and pupal-adult ecdysis, larval mortality, abnormal pupariation, formation of pupal-adult mosaics and adultoids, ecdysial failure, reduced pupariation and adult emergence. Treatment with seed extracts of W. somnifera was more effective as it causes greater toxicity in all the treated groups as compared to that observed with the root extracts. There was a significant interaction among all three factors viz. extract type (root and seed extracts), larval stage (0, 1, 2, 3 days post-moult third instar larvae) and concentration (5 µg/µL, 10 µg/µL, 15 µg/µL, 20 µg/µL) for prolongation of larval-pupal and pupal-adult ecdysis. The results are similar to those observed with the administration of juvenoids and hence it can be inferred that the plant extracts mimic the action of juvenoids. The results clearly suggest that W. somnifera acts as a potential IGR disrupting the moulting and metamorphosis as a consequence of interference with the normal hormonal mechanism in C. megacephala. Abbreviations: Co Sf=coarse surface; Cy W=cylindrical wings; De Ae = deformed anterior end; De W = deformed wings; Ev G = everted genitalia; Ev Pt = everted ptilinium; L Mp = larval mouth parts; Nm W = non-membranous wings; P Ab = pupal abdomen; P Cu = pupal cuticle; Pa T L = partial tanned legs; Pg E = pigmented eyes; Pm = puparium; Re W = reduced wings; Sr G = scar of genitalia; T Pm = tanned puparium; Tu L = tubular legs; Tw Pm = twisted puparium; Un Ab = untanned abdomen; Un Pm = untanned puparium; W Pri = wing primordia","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"171 - 187"},"PeriodicalIF":0.8,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2021.1929519","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46506401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of Bisphenol-A on the morphology and survival of larvae of the sand dollar Dendraster excentricus (Echinodermata, Echinoidea)","authors":"E. Darin","doi":"10.1080/07924259.2021.1923578","DOIUrl":"https://doi.org/10.1080/07924259.2021.1923578","url":null,"abstract":"ABSTRACT Bisphenol-A (BPA) is an ingredient used in phenol resins, epoxy resins, polyesters and polycarbonate plastics. BPA gets released into the aquatic environment through toxic waste disposal, groundwater, sewage runoff and plastic leaching. When BPA enters aquatic environments, it can affect the development and physiology of marine organisms. This study aimed to understand the effects of relatively low concentrations of BPA on the larvae of the sand dollar Dendraster excentricus. Embryos and larvae were exposed to four treatment solutions (no additives, vehicle control, 50 µg/L BPA, and 500 µg/L BPA) for 7 days. The two BPA treatment concentrations were higher than have usually been detected in coastal marine waters, but lower than those used in most other studies of BPA effects on echinoderm development. After exposure, larval midline body length, postoral arm length, frequency of normal development and survyivorship were measured. Midline body length, frequency of normal development and survivorship all decreased in the presence of BPA, in a dose-dependent manner. Relatively low concentrations of BPA can thus have strong effects on the development of sand dollar larvae.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"163 - 170"},"PeriodicalIF":0.8,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2021.1923578","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46530465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of the soil-inhabiting stages of Ceratitis capitata infected with entomopathogenic nematodes: insights on survival","authors":"E. Shaurub, N. Soliman, M. Sabbour","doi":"10.1080/07924259.2021.1920482","DOIUrl":"https://doi.org/10.1080/07924259.2021.1920482","url":null,"abstract":"ABSTRACT The Mediterranean fruit fly Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) is a major pest that affects fruit production worldwide. This insect spends part of its life cycle in the soil, making it a target for entomopathogenic nematodes (EPNs). Laboratory assays were conducted to assess the development of the soil-inhabiting stages (third-instar larvae, prepupae, and pupae), in terms of survival, infected with the EPN strains Steinernema carpocapsae (Weiser) All, Steinernema riobrave Cabanillas, Poinar & Raulston ML29, Heterorhabditis bacteriophora (Poinar) HP88, and H. bacteriophora AS1. Treatment with the native strain (H. bacteriophora AS1) caused the highest mortality compared to the remaining exotic strains. Mortality of the third-instar larvae in the sand proportionally increased to the nematode density (infective juveniles per cm2). Of the tested stages, larvae were the most susceptible stage. Young pupae (1-day-old) were more susceptible to all nematode strains than older pupae (9-day-old). Development, in terms of survival, is a good criterion to evaluate the potential of EPNs to monitor C. capitata.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"155 - 162"},"PeriodicalIF":0.8,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2021.1920482","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45399827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Invertebrate oogenesis – a review and synthesis: comparative ovarian morphology, accessory cell function and the origins of yolk precursors","authors":"K. Eckelbarger, A. Hodgson","doi":"10.1080/07924259.2021.1927861","DOIUrl":"https://doi.org/10.1080/07924259.2021.1927861","url":null,"abstract":"ABSTRACT Oogenesis is a fundamental biological process observed in most animals. Animals employ many different mechanisms to make their eggs and oogenesis cannot be completed without the support of other intraovarian and/or extraovarian cells and tissues. Invertebrates account for 99% of all animal life on earth and their complex life histories are a reflection of the structural heterogeneity of their ovaries and the diversity of their vitellogenic mechanisms. The process of oogenesis in different invertebrates differs because it is constrained by limits imposed by their respective body design, the architecture of their ovaries and their collective phylogenetic history. Oogenesis in the majority of invertebrates has yet to be investigated and current knowledge is limited to relatively superficial descriptions of a fraction of 1% of described species in each of the major animal phyla. It has been over 30 years since the last published review of invertebrate oogenesis and during the intervening years considerable progress has been made in our understanding of the ultrastructural, biochemical and molecular aspects of the process. This review aims to identify some unifying themes by collating and synthesizing the widely dispersed literature on invertebrate oogenesis covering 30 metazoan phyla for which basic information is available.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"71 - 140"},"PeriodicalIF":0.8,"publicationDate":"2021-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2021.1927861","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44211111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arlenie Rogers, J. Hamel, Junior Quetzal, A. Mercier
{"title":"Unique reproductive biology of the broadcasting sea cucumber Holothuria floridana: facultative recruitment on adults inside nursery grounds","authors":"Arlenie Rogers, J. Hamel, Junior Quetzal, A. Mercier","doi":"10.1080/07924259.2021.1900936","DOIUrl":"https://doi.org/10.1080/07924259.2021.1900936","url":null,"abstract":"ABSTRACT Information on newly settled juveniles and recruitment processes in sea cucumbers is sparse for most commercial species, impeding protection of nursery habitats, which are key to management. Here, the ecology of early life stages of Holothuria floridana was investigated. In laboratory experiments, females released a small number of oocytes, which underwent abbreviated lecithotrophic development. During broadcast spawning, some of the negatively buoyant and sticky oocytes settled on the adults where they remained anchored up to the pentactula stage (encapsulated). Several wild adults collected in the Placencia Lagoon (Belize) each hosted ~2 propagules (eggs, blastulae, pentactulae, juveniles). The nursery habitat was characterized by high adult density, shallow seagrass beds close to mangroves, and mud dominated substrata. The present work illustrates a unique facultative offspring-adult association in a free-spawning lecithotrophic species of Holothuroidea, possibly representing a hybrid state between broadcasting and external brooding. This uncommon reproductive feature may ensure successful local recruitment in one of the most competitive habitats of the tropical Americas, where predation pressure is likely to be very high.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"141 - 153"},"PeriodicalIF":0.8,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2021.1900936","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43938378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kai Lehmann, J. Torno, Helmut Jeske, H. Brendelberger
{"title":"Embryonic development, eclosion and performance of juvenile noble crayfish Astacus astacus (L. 1758) in response to shortened cold period","authors":"Kai Lehmann, J. Torno, Helmut Jeske, H. Brendelberger","doi":"10.1080/07924259.2021.1872720","DOIUrl":"https://doi.org/10.1080/07924259.2021.1872720","url":null,"abstract":"ABSTRACT A suitable temperature regime in artificial incubation of crayfish eggs is crucial for successful application in aquaculture production and conservation projects. We studied the effect of different extended cold periods (CP: 10, 24 and 38 days at 7.5 ± 0.5°C) during artificial incubation on embryonic development, incubation efficiency and subsequent juvenile crayfish performance in noble crayfish. Best results were obtained at 38-day CP with stage II survival rate of 60.4 ± 7.4% and stage II wet weight of 38.4 ± 1.9 mg. This regime synchronized embryonic development and equally reduced hatching and moulting period to 7 days with no overlap between both. Survival was high in a subsequent 100-day rearing experiment (10-day CP: 85.0 ± 9.2%; 24-day CP: 90.0 ± 4.1%; 38-day CP: 92.5 ± 2.9%) and juvenile crayfish from 38-day CP grew faster, but these results were not significant. Staggered response of embryonic development to temperature rise and improved juvenile fitness at longer CP illustrate that dormancy of noble crayfish eggs represents a form of true diapause that is regulated solely by temperature and can be accelerated beyond a threshold only at the expense of higher mortality and reduced juvenile fitness.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"48 - 56"},"PeriodicalIF":0.8,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2021.1872720","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47148470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Ceylan, Ramazan Küçükkara, İsmail Erbatur, E. Karatas, Meryem Tunç, N. Sağlam
{"title":"Growth, survival and reproduction of the Turkish medicinal leech, Hirudo sulukii","authors":"M. Ceylan, Ramazan Küçükkara, İsmail Erbatur, E. Karatas, Meryem Tunç, N. Sağlam","doi":"10.1080/07924259.2021.1885506","DOIUrl":"https://doi.org/10.1080/07924259.2021.1885506","url":null,"abstract":"ABSTRACT The present study aimed to investigate growth, survival and reproduction of the Turkish medicinal leech, Hirudo sulukii, endemic to Southeastern Anatolia and whose biology is poorly understood. In comparison with the Southern medicinal leech, Hirudo verbana, which has a wide distribution throughout Eurasia, H. sulukii grew faster until the fourth month, then growth increased significantly in favour of H. verbana. At the beginning of gravidity, high mortality occurred in specimens of H. sulukii not transferred to moist peat, the cocoon deposition area. Gravidity occurred in almost all (98%) H. sulukii adults, but was detected in only 60% of H. verbana adults. Unlike the growing period, survival rate was greater in H. sulukii during the reproductive period. Gravidity and cocoon laying periods lasted longer in H. sulukii, which continued reproductive activity even in colder conditions. There were more and smaller sized cocoons having higher deformation rate in H. sulukii. Likewise, fewer and larger offspring having lower morphological abnormality were observed in cocoons having lower hatchling rates in H. sulukii. Collectively, our findings reveal that H. sulukii reaches adult size relatively early, continues its reproduction in cold conditions and displays high reproductive performance, thus making it a strong candidate for leech aquaculture.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"57 - 68"},"PeriodicalIF":0.8,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2021.1885506","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42906222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bruna Scapin Silva, Ana Paula Franco Punhagui-Umbelino, G. S. Fernandes, G. M. Teixeira
{"title":"Gonadal development, reproductive investment and fecundity of Aegla castro Schimitt, 1942 (Crustacea, Anomura)","authors":"Bruna Scapin Silva, Ana Paula Franco Punhagui-Umbelino, G. S. Fernandes, G. M. Teixeira","doi":"10.1080/07924259.2020.1856204","DOIUrl":"https://doi.org/10.1080/07924259.2020.1856204","url":null,"abstract":"ABSTRACT Aegla castro, is an endemic anomuran crab from Brazil found in headwater streams of the Atlantic Forest on the Paranapanema River basin. This study aims to evaluate the gonadal maturity of A. castro based on macroscopic and microscopic analyses. Crabs were collected in Mauá da Serra (23º57’ S; 51º06ʹ W), Paraná, Brazil in the winter and spring of 2015, and summer, autumn, and spring of 2016. Individuals had their gonads analysed and categorized into stages of development. Stage1, ovaries are macroscopically undetectable through abdominal transparency, while ovaries of stages 2 and 3 could be detected through abdominal transparency and have characteristic colour and length in relation to the abdominal somites. Ovaries have pre-vitellogenic and vitellogenic oocytes in all stages of development, with germ cells and structural epithelium characteristic of these gonadal maturation phases. Spermatogenesis in males begins in spring, with the production of spermatozoa in autumn and spermiation in winter. Aegla castro has seasonal reproduction. The macroscopic stages of gonadal development correspond to the histological gonadal maturation, indicating that the macroscopic observation of the gonads of live animals is feasible in studies of the reproductive cycle of aeglids.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"24 - 34"},"PeriodicalIF":0.8,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1856204","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43644466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The fundamental basis of a life: a review of ‘The Biology of Reproduction’","authors":"E. Duncan","doi":"10.1080/07924259.2021.1879237","DOIUrl":"https://doi.org/10.1080/07924259.2021.1879237","url":null,"abstract":"","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"69 - 69"},"PeriodicalIF":0.8,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2021.1879237","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43086026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Bensafi-Gheraibia, N. Kissoum, Z. Hamida, J. Farine, N. Soltani
{"title":"Topical bioassay of Oberon® on Drosophila melanogaster pupae: delayed effects on ovarian proteins, cuticular hydrocarbons and sexual behaviour","authors":"H. Bensafi-Gheraibia, N. Kissoum, Z. Hamida, J. Farine, N. Soltani","doi":"10.1080/07924259.2020.1862315","DOIUrl":"https://doi.org/10.1080/07924259.2020.1862315","url":null,"abstract":"ABSTRACT Spiromesifen (Oberon® 240 SC; concentrated solution; Bayer CropScience, Germany) a pesticide derived from spirocyclic tetronic acids, acts mainly though blocking lipid biosynthesis via acetyl-CoA carboxylase. However, its mode of action requires further analyses. This study aims to evaluate the sublethal effects of spiromesifen on the fruit fly Drosophila melanogaster. The treatment was carried out by topical application on newly moulted pupae using two concentrations (LD10 = 21.45 and LD25 = 39.53 μg a.i./pupa). Our results showed that the developmental duration of larvae and pupae were not significantly affected by treatment. However, spiromesifen caused delayed effects on flies that survived from treated pupae. Spiromesifen was found to decrease significantly both the morphometric measurements and the protein contents of ovaries. The protein pattern of ovaries showed a reduction in the number of protein bands affecting the progeny via vitellogenesis. Finally, compared to controls, spiromesifen decreased significantly the amounts of some cuticular hydrocarbons in treated female and male adults. Consequently, in response to the changes in cuticular hydrocarbons, their sexual behaviour was also affected. Our study brings new insights about the multiple effects and physiological consequences of disturbing lipid metabolism.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"65 1","pages":"35 - 47"},"PeriodicalIF":0.8,"publicationDate":"2020-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1862315","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48098050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}