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Yin Z, Xie Y, Wang S, Li Q, Wan S, Chen L, Dai X, Wang R, Desneux N, Zhi J, Tang B. Bioaccumulation and transferreing for impacts on Cd and Pb by aphid consumption of the broad bean, Vicia faba L, in soil heavy metal pollution. CHEMOSPHERE 2024; 360:142429. [PMID: 38797206 DOI: 10.1016/j.chemosphere.2024.142429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 05/08/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Heavy metal pollution threatens human and ecological health. Heavy metals can exist in the soil for a long time and migrate to organisms along the food chain. However, only a few studies have investigated the effects of a single stress on broad beans. Here, we aimed to characterize Cd and Pb bioaccumulation, at varying concentrations, in the broad bean, Vicia faba L. We also determined how the bioaccumulated metals are impacted by aphids that consume the plant. No significant difference was noted in the germination rates of broad beans at the early stage of planting (after 8 days), but eventually, the germination rates of broad beans at all time points first decreased and then increased, and the highest inhibition efficiency was observed in the T3 group (12.5 mg/L Cd2+ + 50 mg/L Pb2+). Fourteen days after planting, there was no significant difference in seedling height between the T5 (50 mg/L Cd2+ + 200 mg/L Pb2+) and control groups; however, that in the other groups decreased significantly and there was no dependence between stress concentration and inhibition efficiency. In addition, both Cd and Pb in the soil could be transferred to broad beans, and the concentration of Pb in the roots of broad beans was greater than that of Cd, whereas the opposite was observed in the stems and leaves. Notably, under mixed stress, aphids could significantly reduce the content of Cd in broad beans; similarly, the Pb content in the roots and stems of broad beans decreased significantly after being infested with aphids but increased significantly in the leaves. Further, the aphid infestation decreased the Pb content in the soil and the soil Cd content in the highest concentration group (T5 group) (50 mg/L Cd2+ + 200 mg/L Pb2+). These results highlight the necessity of focusing on the effect of insects on heavy metal remediation in plants and provide a new perspective for reducing plant Cd toxicity.
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Affiliation(s)
- Zhenjuan Yin
- Institute of Entomology, Guizhou University, Guizhou Provincial Key Laboratory for Agricultural Pest Management in the Mountainous Region, Guiyang 550025, China; Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, China; Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan 250100, China
| | - Yexin Xie
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Shasha Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Qimei Li
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, China; College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Sijing Wan
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Liya Chen
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Xiaoyan Dai
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, China; Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan 250100, China
| | - Ruijuan Wang
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, China; Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan 250100, China
| | | | - Junrui Zhi
- Institute of Entomology, Guizhou University, Guizhou Provincial Key Laboratory for Agricultural Pest Management in the Mountainous Region, Guiyang 550025, China.
| | - Bin Tang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China.
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Kökdener M, Gündüz NEA, Zeybekoğlu Ü, Aykut U, Yılmaz AF. The Effect of Different Heavy Metals on the Development of Lucilia sericata (Diptera: Calliphoridae). JOURNAL OF MEDICAL ENTOMOLOGY 2022; 59:1928-1935. [PMID: 36166585 DOI: 10.1093/jme/tjac134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Indexed: 06/16/2023]
Abstract
This study investigates the impacts of three different heavy metals at different concentrations on some life-history traits of Lucilia sericata (Meigen 1826) (Diptera: Calliphoridae). First-instar larvae of L. sericata were reared on a diet containing four concentrations (0.25, 0.50, 1, and 2 µg/g) of the heavy metals (cadmium, zinc copper). The parameters measured were larval and pupal mortality, larval length, adult, pupal, and larval weight, and development time. Larval and pupal survival decreased as heavy metal concentrations increased. Pupal weight was significantly different among heavy metals andc oncentrations, but the adult weight was not significantly different among heavy metals and concentrations. The larval length was significantly different among concentrations and heavy metals. This study reveals that the presence of heavy metal in carrion or the carrion environment should be inconsidered when estimating the time of colonization in forensic investigations.
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Affiliation(s)
- Meltem Kökdener
- Ondokuz Mayıs University, Health Science Faculty, 55139, Samsun, Turkey
- Ondokuz Mayıs University, Graduate Education Institute, Forensic Science Program, 55139, Samsun, Turkey
| | | | - Ünal Zeybekoğlu
- Ondokuz Mayıs University, Science Faculty, Biology Department, 55139, Samsun, Turkey
| | - Umut Aykut
- Ondokuz Mayıs University, Health Science Faculty, 55139, Samsun, Turkey
| | - Ahmet Fazıl Yılmaz
- Ondokuz Mayıs University, Graduate Education Institute, Forensic Science Program, 55139, Samsun, Turkey
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Akhtar ZR, Tariq K, Mavian C, Ali A, Ullah F, Zang LS, Ali F, Nazir T, Ali S. Trophic transfer and toxicity of heavy metals from dengue mosquito Aedes aegypti to predator dragonfly Tramea cophysa. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1108-1115. [PMID: 34165678 DOI: 10.1007/s10646-021-02448-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/09/2021] [Indexed: 06/13/2023]
Abstract
Heavy metal pollution in aquatic habitats can be detrimental to both prey and predators in a food web. To investigate the potential for bio-transfer and bioaccumulation of heavy metals between specific trophic levels, 3rd instar larvae of Aedes aegypti were exposed to mercury (Hg), lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn) for three consecutive generations and fed to dragonfly (Tramea cophysa) nymphs. Exposure to Hg caused the highest mortality in A. aegypti larvae and T. cophysa nymphs. Bioaccumulation and life-history parameters of A. aegypti, including egg hatching time, larval and pupal duration, male and female life span, and fecundity, were also evaluated after metals exposure. All life-history parameters except larval duration were significantly affected by heavy metal treatments. Bioaccumulation of metals in A. aegypti larvae and adults gradually and significantly increased from 1st to 3rd generation. To the best of our knowledge, this is the first study describing the acute toxicity of heavy metals to mosquitoes. Our study shows that heavy metals cause dietary toxicity to an aquatic predator, dragonfly, via trophic transfer, which could have considerable consequences on aquatic ecosystems.
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Affiliation(s)
- Zunnu Raen Akhtar
- Department of Entomology, University of Agriculture, Faisalabad, Pakistan
| | - Kaleem Tariq
- Department of Agriculture Entomology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan.
- Entomology and Nematology Department, Steinmetz Hall, University of Florida, Gainesville, FL, 32611, USA.
- U.S. Department of Agriculture, Agricultural Research Service, Center for Medical, Agricultural and Veterinary Entomology, Gainesville, FL, 32608, USA.
| | - Carla Mavian
- Emerging Pathogens Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Asad Ali
- Department of Agriculture Entomology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Farman Ullah
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, 100193, China
| | - Lian-Sheng Zang
- Ayub Agricultural Research Institute, Faisalabad, Punjab, Pakistan
| | - Farman Ali
- Department of Agriculture Entomology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Tamsila Nazir
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Guizhou University, Guiyang, P. R. China
| | - Sajjad Ali
- Department of Entomology, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
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El-Samad LM, El-Ashram S, Kheirallah DA, Abdul-Aziz KK, Toto NA, Mokhamer EHM. Relative gene expression, micronuclei formation, and ultrastructure alterations induced by heavy metal contamination in Pimelia latreillei (Coleoptera: Tenebrionidae) in an urban-industrial area of Alexandria, Egypt. PLoS One 2021; 16:e0253238. [PMID: 34161380 PMCID: PMC8221511 DOI: 10.1371/journal.pone.0253238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/29/2021] [Indexed: 11/23/2022] Open
Abstract
The present research aims to evaluate the impact of industrial processes and anthropogenic activities on the beetle Pimelia latreillei inhabiting the polluted site at Zawya Abd El- Qader, Alexandria, Egypt. Beetles were collected from the vicinity of five factories. The genotoxic effects of environmental exposures to industrial heavy metals were monitored using a broad range of assays, including energy-dispersive X ray microanalysis and X-ray diffraction (SEM and EDX)), qRT-PCR gene expression assay, micronuclei formation, and transmission electron microscope (TEM). Energy dispersive X-ray microanalysis for the soil and testicular tissues of beetles collected from the polluted site revealed a higher percentage of heavy metals than the beetles collected from the reference site (Sidi Kirier, Alexandria, Egypt). To analyze/monitor genotoxicity in P. latreillei sampled from the polluted site, the transcription levels of levels of heat shock proteins (Hsps) and accessory gland seminal fluid protein (AcPC01) in testicular tissues were recorded. The incidence of micronuclei (MN) formation in the testicular cells was also observed. Quantitative RT-PCR (RT-qPCR) analysis was carried out to detect the changes in the gene expression of the aforementioned proteins. Genes encoding heat shock proteins (Hsp60, Hsp70, and Hsp90) were significantly overexpressed (> 2-fold) in specimens sampled from the polluted site; however, AcPC01 gene expression was under-expressed (<1.5-folds). The incidence of MN was significantly increased in specimens sampled from the polluted site. Ultrastructure anomalies (nuclear and cytoplasmic disruption) were also observed in the testicular cells of the beetles sampled from the polluted site compared to those sampled from the unpolluted site. Our results, therefore, advocate a need for adequate measures to reduce increasing environmental pollution in the urban-industrial areas.
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Affiliation(s)
- Lamia M. El-Samad
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Saeed El-Ashram
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong Province, China
- Faculty of Science, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Dalia A. Kheirallah
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Karolin K. Abdul-Aziz
- Department of Zoology, Faculty of Science, Damanhour University, El Beheira, Damanhour, Egypt
| | - Noura A. Toto
- Department of Zoology, Faculty of Science, Damanhour University, El Beheira, Damanhour, Egypt
| | - El Hassan M. Mokhamer
- Department of Zoology, Faculty of Science, Damanhour University, El Beheira, Damanhour, Egypt
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Kheirallah DAM, Ali AM, Osman SE, Shouman AM. Nickel oxide nanoparticles induce genotoxicity and cellular alterations in the ground beetle Blaps polycresta (Coleoptera: Tenebrionidae). Toxicol Ind Health 2021; 37:408-430. [PMID: 34085874 DOI: 10.1177/07482337211000988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Nickel nanoparticles (Ni-NPs) have advantageous applications in the industry; however, little is known of their adverse effects on biological tissues. In the present study, the ground beetle Blaps polycresta was employed as a sensitive indicator for nickel oxide nanoparticles (NiO-NPs) toxicity. Adult male beetles were injected with six dose levels of NiO-NPs (0.01, 0.02, 0.03, 0.04, 0.05, and 0.06 mg/g body weight). Mortality was reported daily over 30 days under laboratory conditions to establish an LD50. Nickel was detected in the testicular tissues of the beetles using X-ray analysis and transmission electronic microscopy. Beetles treated with the sublethal dose of 0.02 mg/g were selected to observe molecular, cellular, and subcellular changes. Gene transcripts of HSP70, HSP90, and MT1 were found to be increased >2.5-, 1.5-, and 2-fold, respectively, in the treated group compared with the controls. Decreased gene expression of AcPC01, AcPC02, and AcPC04 (≤1.5-, ≤2-, and < 2.5-fold, respectively, vs. controls) also were reported in the treated group. Under light microscopy, various structural changes were observed in the testicular tissues of the treated beetles. Ultrastructure observations using scanning and transmission electron microscopy showed severe damage to the subcellular organelles as well as deformities of the heads and flagella of the spermatozoa. Therefore, the present study postulated the impact of NiO-NPs in an ecological model.
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Affiliation(s)
| | - Awatef Mohamed Ali
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Salah Eldein Osman
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Amal Mohamed Shouman
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
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Zhou J, Chen J, Shu Y. Lead stress affects the reproduction of Spodoptera litura but not by regulating the vitellogenin gene promoter. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111581. [PMID: 33396104 DOI: 10.1016/j.ecoenv.2020.111581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/19/2020] [Accepted: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Lead (Pb) stress affects hormone-mediated responses (e.g., reproduction) in insects. In this study, the effects of Pb stress (12.5-50 mg Pb/kg in larval artificial diets) on the reproduction of the common cutworm Spodoptera litura (Lepidoptera: Noctuidae) were investigated after 7 generations. The results showed that Pb stress did not reduce the longevity of adult females, but 50 mg Pb/kg significantly reduced the longevity of adult males, regardless of the generation. After 50 mg Pb/kg stress for one or 7 generations, the peak time of egg-laying was delayed, and egg production and hatchability were decreased significantly. The vitellin content in eggs was significantly inhibited by Pb stress. The S. litura vitellogenin (Vg) gene promoter was cloned and analyzed. Multiple putative transcription factors were predicted for the 2321 bp Vg promoter region, including the TATA box, GATA, basic helix-loop-helix (bHLH) transcription factor, Broad-Complex (BR-C) binding sites, etc. The fragment from -2222 to -211 bp of the Vg promoter was the activation domain for Vg, whereas the region from -211 to -55 bp repressed the activity of the Vg promoter. The construct promoter (-782/+76) in Trichoplusia ni (Hi5) cells significantly improved Vg expression, which was not affected by Pb stress (1 or 10 mg/ml). Therefore, Pb stress significantly inhibited the reproduction of S. litura but not by regulating the Vg promoter.
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Affiliation(s)
- Jialiang Zhou
- School of Life Sciences, Jinggangshan University, Ji'an, 343009, China
| | - Jin Chen
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yinghua Shu
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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Shi Z, Wang S, Pan B, Liu Y, Li Y, Wang S, Wang S, Tang B. Effects of zinc acquired through the plant-aphid-ladybug food chain on the growth, development and fertility of Harmonia axyridis. CHEMOSPHERE 2020; 259:127497. [PMID: 32650168 DOI: 10.1016/j.chemosphere.2020.127497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/19/2020] [Accepted: 06/20/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal pollution is an increasingly serious problem in agricultural ecosystems. Zinc accumulation in the food chain may harm the physiological functions of organisms, including herbivorous and predatory insects. Its effects on development and reproduction in Harmonia axyridis are largely unknown. In this study, five Zn solutions (25, 50, 100, and 150 mg/kg) plus control (0 mg/kg) were used to treat broad beans and to water the resulting seedlings. Aphids fed on these seedlings were eaten by H. axyridis ladybugs. Zn accumulation was found at all three trophic levels. Compared with the control group, ladybugs in the 25, 50, and 100 mg/kg groups had significantly reduced weight gain from the 4th instar to adulthood. Pupae and larvae (instars 1-4) in the 150 mg/kg group had the lowest survival of any group; pupal mortality in the 100 mg/kg group was significantly higher than that in the control group. Under Zn stress, female adults had inhibited expression of Vg1, Vg2 and VgR, reducing egg production and hatchability. Zn thus negatively affected their fertility. These results provide a theoretical basis for future exploration of soil heavy metal pollution impacts in ecosystems.
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Affiliation(s)
- Zuokun Shi
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Shasha Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Biying Pan
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Yongkang Liu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Yan Li
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Shigui Wang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Su Wang
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China, Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Bin Tang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China.
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Dar MI, Green ID, Khan FA. Trace metal contamination: Transfer and fate in food chains of terrestrial invertebrates. FOOD WEBS 2019. [DOI: 10.1016/j.fooweb.2019.e00116] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shonouda M, Osman W. Ultrastructural alterations in sperm formation of the beetle, Blaps polycresta (Coleoptera: Tenebrionidae) as a biomonitor of heavy metal soil pollution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:7896-7906. [PMID: 29299863 DOI: 10.1007/s11356-017-1172-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
Little is known about ultrastructural alterations induced by heavy metals pollution in insects. Therefore, the main objective of the present study is to elucidate ultrastructural changes in sperm formation of the tenebrionid beetle, Blaps polycresta as a biomonitor of heavy metal soil pollution. Metal percentages in testicular tissues of adult insects collected from reference and polluted sites were estimated using energy-dispersive X-ray microanalysis (EDX). Only cadmium, among eight detected metals, showed significantly higher percentages in the polluted testes compared with the reference ones. Ultrastructure investigation revealed severe alterations both in spermatogenic and spermiogenic stages of the polluted insects. Some cells were totally eroded. No spermatozoa were observed in all the examined cysts. Most degenerations were confined to the flagella of spermatids having enlarged vacuolated cytoplasm and malformed mitochondrial derivatives. Groups of multiple axial filaments were appeared in the form of bi-and tetra-flagellate spermatids. Electron dense vesicles were observed in almost all stages of the polluted testes. It is a novel trend in which ultrastructural alterations in sperm formation of insects could be used as a promising biomonitoring and risk assessment tool for heavy metal soil pollution.
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Affiliation(s)
- Mourad Shonouda
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Wafaa Osman
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt.
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Osman W, Shonouda M. X-ray metal assessment and ovarian ultrastructure alterations of the beetle, Blaps polycresta (Coleoptera, Tenebrionidae), inhabiting polluted soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:14867-14876. [PMID: 28477258 DOI: 10.1007/s11356-017-9095-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
X-ray analysis was applied to estimate the percentages of heavy metals in ovarian tissues of the tenebrionid beetle, Blaps polycresta. Calcium, phosphorus, sulfur, cadmium, copper, and zinc were the most common detected metals in ovaries of insects collected from reference and polluted sites. Only cadmium showed significantly higher percentages in the polluted ovaries compared with the reference ones. Ultrastructure investigation revealed severe alterations in polluted ovaries both in the tropharium and in the vitellarium. Contraction of nuclear membrane of trophocytes was observed; therefore, cavities and spaces appeared in the cytoplasm followed by nuclear pyknosis. In the vitellarium, fragmentation of chromatin materials in nuclei of the follicular cells was detected. The cytoplasm was poor in the rough endoplasmic reticulum and mitochondria. Damage of yolk bodies occurred in addition to break off in the layer of microvilli. Accumulation of electron-dense vesicles and multivesicular bodies were observed in both reference and polluted ovaries. These alterations in ovarian ultrastructure of B. polycresta show the severe impact of cadmium pollution on cell organelles of insects and could be used as an interesting tool for monitoring heavy metals inside the body organs due to soil pollution.
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Affiliation(s)
- Wafaa Osman
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt.
| | - Mourad Shonouda
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
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Sun H, Wu W, Guo J, Xiao R, Jiang F, Zheng L, Zhang G. Effects of nickel exposure on testicular function, oxidative stress, and male reproductive dysfunction in Spodoptera litura Fabricius. CHEMOSPHERE 2016; 148:178-187. [PMID: 26807937 DOI: 10.1016/j.chemosphere.2015.10.068] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 10/15/2015] [Accepted: 10/15/2015] [Indexed: 06/05/2023]
Abstract
Nickel is an environmental pollutant that adversely affects the male reproductive system. In the present study, the effects of nickel exposure on Spodoptera litura Fabricius were investigated by feeding larvae artificial diets containing different doses of nickel for three generations. Damage to testes and effects on male reproduction were examined. The amount of nickel that accumulated in the testes of newly emerged males increased as the nickel dose in the diet increased during a single generation. Nickel exposure increased the amount of thiobarbituric acid reactive substances and decreased the amount of glutathione in treatment groups compared with the control. The activity levels of the antioxidant response indices superoxide dismutases, catalase, and glutathione peroxidase in the testes showed variable dose-dependent relationships with nickel doses and duration of exposure. Nickel doses also disrupted the development of the testes by decreasing the weight and volume of testes and the number of eupyrene and apyrene sperm bundles in treatment groups compared with the control. When the nickel-treated males mated with normal females, fecundity was inhibited by the higher nickel doses in all three generations, but fecundity significantly increased during the second generation, which received 5 mg kg(-1) nickel. Hatching rates in all treatments significantly decreased in a dose-dependent manner in the three successive generations. The effects of nickel on these parameters correlated with the duration of nickel exposure. Results indicate assays of testes may be a novel and efficient means of evaluating the effects of heavy metals on phytophagous insects in an agricultural environment.
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Affiliation(s)
- Hongxia Sun
- State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China; Department of Entomology, College of Agriculture, University of Kentucky, Lexington, KY 40504, USA
| | - Wenjing Wu
- State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China; Guangdong Entomological Institute, Guangzhou 510260, China
| | - Jixing Guo
- State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China
| | - Rong Xiao
- State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China
| | - Fengze Jiang
- State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China
| | - Lingyan Zheng
- State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China
| | - Guren Zhang
- State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China.
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