1
|
Miranda LS, Rudd SR, Mena O, Hudspeth PE, Barboza-Corona JE, Park HW, Bideshi DK. The Perpetual Vector Mosquito Threat and Its Eco-Friendly Nemeses. BIOLOGY 2024; 13:182. [PMID: 38534451 DOI: 10.3390/biology13030182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/28/2024]
Abstract
Mosquitoes are the most notorious arthropod vectors of viral and parasitic diseases for which approximately half the world's population, ~4,000,000,000, is at risk. Integrated pest management programs (IPMPs) have achieved some success in mitigating the regional transmission and persistence of these diseases. However, as many vector-borne diseases remain pervasive, it is obvious that IPMP successes have not been absolute in eradicating the threat imposed by mosquitoes. Moreover, the expanding mosquito geographic ranges caused by factors related to climate change and globalization (travel, trade, and migration), and the evolution of resistance to synthetic pesticides, present ongoing challenges to reducing or eliminating the local and global burden of these diseases, especially in economically and medically disadvantaged societies. Abatement strategies include the control of vector populations with synthetic pesticides and eco-friendly technologies. These "green" technologies include SIT, IIT, RIDL, CRISPR/Cas9 gene drive, and biological control that specifically targets the aquatic larval stages of mosquitoes. Regarding the latter, the most effective continues to be the widespread use of Lysinibacillus sphaericus (Ls) and Bacillus thuringiensis subsp. israelensis (Bti). Here, we present a review of the health issues elicited by vector mosquitoes, control strategies, and lastly, focus on the biology of Ls and Bti, with an emphasis on the latter, to which no resistance has been observed in the field.
Collapse
Affiliation(s)
- Leticia Silva Miranda
- Graduate Program in Biomedical Sciences, Department of Biological Sciences, California Baptist University, Riverside, CA 92504, USA
| | - Sarah Renee Rudd
- Graduate Program in Biomedical Sciences, Department of Biological Sciences, California Baptist University, Riverside, CA 92504, USA
- Integrated Biomedical Graduate Studies, and School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
| | - Oscar Mena
- Undergraduate Program in Biomedical Sciences, Department of Biological Sciences, California Baptist University, Riverside, CA 92504, USA
| | - Piper Eden Hudspeth
- Undergraduate Program in Biomedical Sciences, Department of Biological Sciences, California Baptist University, Riverside, CA 92504, USA
| | - José E Barboza-Corona
- Departmento de Alimentos, Posgrado en Biociencias, Universidad de Guanajuato Campus Irapuato-Salamanca, Irapuato 36500, Guanajuato, Mexico
| | - Hyun-Woo Park
- Graduate Program in Biomedical Sciences, Department of Biological Sciences, California Baptist University, Riverside, CA 92504, USA
- Undergraduate Program in Biomedical Sciences, Department of Biological Sciences, California Baptist University, Riverside, CA 92504, USA
| | - Dennis Ken Bideshi
- Graduate Program in Biomedical Sciences, Department of Biological Sciences, California Baptist University, Riverside, CA 92504, USA
- Undergraduate Program in Biomedical Sciences, Department of Biological Sciences, California Baptist University, Riverside, CA 92504, USA
| |
Collapse
|
2
|
Li X, Song S, Wei F, Huang X, Guo Y, Zhang T. Occurrence, distribution, and translocation of legacy and current-use pesticides in pomelo orchards in South China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169674. [PMID: 38160827 DOI: 10.1016/j.scitotenv.2023.169674] [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: 10/24/2023] [Revised: 12/23/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Pomelo (Citrus grandis) is a highly popular and juicy member of the citrus family. However, little is known regarding the occurrence and distribution of pesticides in pomelo. In this study, we determined the levels of legacy (n = 25) and current-use pesticides (n = 2) in all parts of pomelo (i.e., epicarp, mesocarp, endocarp, pulp, and seed) and paired soil and leaf samples collected from two pomelo orchards in South China. At least one target pesticide was detected in the pomelo fruit, soil, and leaf samples, indicating that these pesticides were ubiquitous. The spatial distribution of the total concentration of pesticides in the pomelo parts was in the order of epicarp (216 ng/g) > mesocarp (9.50 ng/g) > endocarp (4.40 ng/g) > seed (3.80 ng/g) > pulp (1.10 ng/g), revealing different spatial distributions in pomelo. Principal component analysis was performed based on the concentrations of the target pesticides in the pulp and paired samples of epicarp, leaf, topsoil, and deep soil to examine the translocation pathway of the pesticides in pomelo. Close correlations were found among the target pesticides, and the pesticides in the pulp were mainly transferred from the epicarp, topsoil, or deep soil. We also explored the factors that affected such transport and found that the main translocation pathway of the non-systemic pesticide (i.e., buprofezin) into the pulp was the epicarp, whereas the systemic pesticide (i.e., pyriproxyfen) was mainly derived from the soil. The cumulative chronic dietary risks of all the pesticides resulting from pomelo consumption were much lower than the acceptable daily intake values for the general population. However, the prolonged risk of exposure to these pesticides should not be underestimated. The potential health risks posed by legacy and current-use pesticides, which are widely and frequently utilized, should be given increased attention.
Collapse
Affiliation(s)
- Xu Li
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; School of Chemistry and Environment, Jiaying University, Meizhou 514015, China
| | - Shiming Song
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; School of Chemistry and Environment, Jiaying University, Meizhou 514015, China
| | - Fenghua Wei
- School of Chemistry and Environment, Jiaying University, Meizhou 514015, China
| | - Xiongfei Huang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yuankai Guo
- School of Chemistry and Environment, Jiaying University, Meizhou 514015, China.
| | - Tao Zhang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| |
Collapse
|
3
|
Salesa B, Torres-Gavilá J, Ferrando-Rodrigo MD, Sancho E. Pyriproxyfen Contamination in Daphnia magna: Identifying Early Warning Biomarkers. J Xenobiot 2024; 14:214-226. [PMID: 38390993 PMCID: PMC10885111 DOI: 10.3390/jox14010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/24/2024] Open
Abstract
Pyriproxyfen is an insecticide currently employed in numerous countries for the management of agricultural and indoor pests. Several studies indicate that this insecticide has been detected in multiple rivers, with concentrations reaching as high as 99.59 ng/L in the Júcar River in Spain. Therefore, the determination of some biochemical and genetic effects of this insecticide on aquatic organisms could serve as an early warning mechanism to identify potential disruptions in various biomarkers. Based on this, Daphnia magna organisms were exposed to pyriproxyfen sublethal concentrations for 21 days. Some biochemical parameters, including cholesterol, triglycerides, glucose, lactate, and LDH activity, were determined. Additionally, some genetic biomarkers associated with oxidative stress, heat shock proteins, lipid metabolism, hemoglobin, metallothioneins, and vitellogenin synthesis were evaluated in daphnids exposed to the insecticide for 21 days. LDH activity increased significantly in those daphnids exposed to the highest insecticide concentration (14.02 µg/L), while cholesterol levels decreased significantly. In contrast, glucose, total proteins, and triglycerides remained unaffected in D. magna exposed to pyriproxyfen. On the other hand, exposure to the insecticide led to notable alterations in gene expression among individuals. Specifically, genes associated with lipid metabolism and reproduction exhibited a significant reduction in gene expression. Fabd expression was decreased by approximately 20% in exposed daphnids, while vtg expression was suppressed as much as 80% when compared to control values. Furthermore, it was observed that the hgb1 and hgb2 genes, associated with hemoglobin synthesis, exhibited significant overexpression. Notably, the dysfunction observed in both hemoglobin genes was linked to an increase in pigmentation in Daphnia magna during the course of the experiment. These alterations in gene expression could serve as effective indicators of early contamination even at low pesticide concentrations.
Collapse
Affiliation(s)
- Beatriz Salesa
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain
| | - Javier Torres-Gavilá
- Instituto de Investigación en Medio Ambiente y Ciencia Marina (IMEDMAR-UCV), c/Guillem de Castro 94, 46001 Valencia, Spain
| | - María Dolores Ferrando-Rodrigo
- Laboratory of Ecotoxicology, Functional Biology and Physical Anthropology Department, Faculty of Biology, University of Valencia, Dr. Moliner 50, 46100 Valencia, Spain
| | - Encarnación Sancho
- Laboratory of Ecotoxicology, Functional Biology and Physical Anthropology Department, Faculty of Biology, University of Valencia, Dr. Moliner 50, 46100 Valencia, Spain
| |
Collapse
|
4
|
Yin C, Morita T, Parrish JZ. A cell atlas of the larval Aedes aegypti ventral nerve cord. Neural Dev 2024; 19:2. [PMID: 38297398 PMCID: PMC10829479 DOI: 10.1186/s13064-023-00178-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 11/28/2023] [Indexed: 02/02/2024] Open
Abstract
Mosquito-borne diseases account for nearly 1 million human deaths annually, yet we have a limited understanding of developmental events that influence host-seeking behavior and pathogen transmission in mosquitoes. Mosquito-borne pathogens are transmitted during blood meals, hence adult mosquito behavior and physiology have been intensely studied. However, events during larval development shape adult traits, larvae respond to many of the same sensory cues as adults, and larvae are susceptible to infection by many of the same disease-causing agents as adults. Hence, a better understanding of larval physiology will directly inform our understanding of physiological processes in adults. Here, we use single cell RNA sequencing (scRNA-seq) to provide a comprehensive view of cellular composition in the Aedes aegypti larval ventral nerve cord (VNC), a central hub of sensory inputs and motor outputs which additionally controls multiple aspects of larval physiology. We identify more than 35 VNC cell types defined in part by neurotransmitter and neuropeptide expression. We also explore diversity among monoaminergic and peptidergic neurons that likely control key elements of larval physiology and developmental timing, and identify neuroblasts and immature neurons, providing a view of neuronal differentiation in the VNC. Finally, we find that larval cell composition, number, and position are preserved in the adult abdominal VNC, suggesting studies of larval VNC form and function will likely directly inform our understanding adult mosquito physiology. Altogether, these studies provide a framework for targeted analysis of VNC development and neuronal function in Aedes aegypti larvae.
Collapse
Affiliation(s)
- Chang Yin
- Department of Biology, University of Washington, Seattle, WA, 98195, USA
- Division of Education, Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA, 02543, USA
| | - Takeshi Morita
- Division of Education, Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA, 02543, USA
- Laboratory of Neurogenetics and Behavior, The Rockefeller University, New York, NY, 10065, USA
- Howard Hughes Medical Institute, New York, NY, 10065, USA
| | - Jay Z Parrish
- Department of Biology, University of Washington, Seattle, WA, 98195, USA.
- Division of Education, Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA, 02543, USA.
| |
Collapse
|
5
|
Lewis SM, Jusoh WFA, Walker AC, Fallon CE, Joyce R, Yiu V. Illuminating Firefly Diversity: Trends, Threats and Conservation Strategies. INSECTS 2024; 15:71. [PMID: 38276820 PMCID: PMC10815995 DOI: 10.3390/insects15010071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
Fireflies are a diverse group of bioluminescent beetles belonging to the family Lampyridae. Recent research on their diversity, evolution, behavior and conservation has greatly advanced our scientific understanding of these charismatic insects. In this review, we first summarize new discoveries about their taxonomic and ecological diversity, then focus on recent endeavors to identify and protect threatened fireflies around the world. We outline the main threats linked to recent population declines (habitat loss and degradation, light pollution, pesticide overuse, climate change and tourism) and describe relevant risk factors that predict which species will be particularly vulnerable to these threats. Although global coordination of firefly conservation efforts has begun only recently, considerable progress has already been made. We describe work by the IUCN SSC Firefly Specialist Group to identify species currently facing elevated extinction risks and to devise conservation strategies to protect them. To date, IUCN Red List assessments have been completed for 150 firefly taxa, about 20% of which face heightened extinction risks. The conservation status for many species has yet to be determined due to insufficient information, although targeted surveys and community science projects have contributed valuable new data. Finally, we highlight some examples of successful firefly habitat protection and restoration efforts, and we use the framework of the IUCN SSC Species Conservation Cycle to point out high-priority actions for future firefly conservation efforts.
Collapse
Affiliation(s)
- Sara M. Lewis
- IUCN SSC Firefly Specialist Group, Gland, Switzerland; (W.F.A.J.); (C.E.F.)
- Department of Biology, Tufts University, Medford, MA 02155, USA
| | - Wan F. A. Jusoh
- IUCN SSC Firefly Specialist Group, Gland, Switzerland; (W.F.A.J.); (C.E.F.)
- School of Science, Monash University Malaysia, Subang Jaya 47500, Selangor, Malaysia
| | - Anna C. Walker
- IUCN SSC Firefly Specialist Group, Gland, Switzerland; (W.F.A.J.); (C.E.F.)
- New Mexico BioPark Society, Albuquerque, NM 87102, USA
| | - Candace E. Fallon
- IUCN SSC Firefly Specialist Group, Gland, Switzerland; (W.F.A.J.); (C.E.F.)
- The Xerces Society for Invertebrate Conservation, Portland, OR 97232, USA
| | - Richard Joyce
- IUCN SSC Firefly Specialist Group, Gland, Switzerland; (W.F.A.J.); (C.E.F.)
- The Xerces Society for Invertebrate Conservation, Portland, OR 97232, USA
| | - Vor Yiu
- IUCN SSC Firefly Specialist Group, Gland, Switzerland; (W.F.A.J.); (C.E.F.)
- Hong Kong Entomological Society, Hong Kong, China
| |
Collapse
|
6
|
Carrieri M, Albieri A, Angelini P, Soracase M, Dottori M, Antolini G, Bellini R. Effects of the Weather on the Seasonal Population Trend of Aedes albopictus (Diptera: Culicidae) in Northern Italy. INSECTS 2023; 14:879. [PMID: 37999078 PMCID: PMC10672383 DOI: 10.3390/insects14110879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 11/06/2023] [Accepted: 11/11/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Aedes albopictus, the Asian tiger mosquito, has become a prevalent pest in Italy, causing severe nuisance and posing a threat of transmission of arboviruses introduced by infected travelers. In this study, we investigated the influence of weather parameters on the seasonal population density of Aedes albopictus. METHODS A Bayesian approach was employed to identify the best meteorological predictors of species trend, using the eggs collected monthly from 2010 to 2022 by the Emilia-Romagna regional monitoring network. RESULTS The findings show that the winter-spring period (January to May) plays a crucial role in the size of the first generation and seasonal development of the species. CONCLUSIONS A temperate winter and a dry and cold March, followed by a rainy and hot spring and a rainy July, seem to favor the seasonal development of Ae. albopictus.
Collapse
Affiliation(s)
- Marco Carrieri
- Centro Agricoltura Ambiente “G.Nicoli”, Sanitary Entomology & Zoology Department, 40014 Crevalcore, Italy; (M.C.); (R.B.)
| | - Alessandro Albieri
- Centro Agricoltura Ambiente “G.Nicoli”, Sanitary Entomology & Zoology Department, 40014 Crevalcore, Italy; (M.C.); (R.B.)
| | - Paola Angelini
- Regional Health Authority of Emilia-Romagna, 40127 Bologna, Italy; (P.A.); (M.S.)
| | - Monica Soracase
- Regional Health Authority of Emilia-Romagna, 40127 Bologna, Italy; (P.A.); (M.S.)
| | - Michele Dottori
- Istituto Zooprofilattico Sperimentale Della Lombardia e Dell’Emilia Romagna “B. Ubertini” (IZSLER), 25124 Brescia, Italy;
| | - Gabriele Antolini
- Environmental Protection Agency of Emilia-Romagna, Hydro-Meteo-Climate Service (ARPAE-SIMC), 40122 Bologna, Italy;
| | - Romeo Bellini
- Centro Agricoltura Ambiente “G.Nicoli”, Sanitary Entomology & Zoology Department, 40014 Crevalcore, Italy; (M.C.); (R.B.)
| |
Collapse
|
7
|
Nachammai KT, Amaradeepa S, Raageshwari S, Swathilakshmi AV, Poonkothai M, Langeswaran K. Unraveling the Interaction Mechanism of the Compounds From Cladophora sp to Recognize Prospective Larvicidal and Bactericidal Activities: In vitro and In Silico Approaches. Mol Biotechnol 2023:10.1007/s12033-023-00902-z. [PMID: 37843757 DOI: 10.1007/s12033-023-00902-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/01/2023] [Indexed: 10/17/2023]
Abstract
The present investigation aims to validate the larvicidal and antibacterial potential of Cladophora sp through in vitro and in silico approaches. The presence of phytoconstituents, functional groups and the compounds responsible for antibacterial and larvicidal activity were assessed through FT-IR and GC-MS analyses which unveiled the existence of active secondary metabolites, hydroxyl, alkane and carbonyl groups. The larvicidal and antibacterial activity of algal extract were examined and revealed complete mortality and substantial zone of inhibition was observed against Culex quinquefasciatus and E. coli. To support the in vitro investigation in silico studies were performed. Molecular docking investigations of the selected compounds from GC-MS which exhibited favorable agreement with drug likeness and ADMET properties indicated robust interactions with the larvicidal and bacterial proteins showcasing considerable binding affinities. Notably, 1,2,4-Oxadiazole, 3-(1,3-benzodioxol-5-yl)-5-[(4-iodo-1H-pyrazol-1-yl) methyl]- exhibited strong interactions with the target proteins. Density Functional Theory revealed that the energy gap of the lead compound was reduced and substantiates the occurrence of intermolecular charge transfer. Molecular Dynamic simulations confirms the stability and flexibility of the lead compound. Hence, this investigation offers computational perspectives on the molecular interactions of Cladophora sp, suggesting its suitability as a promising biocontrol agent.
Collapse
Affiliation(s)
- K T Nachammai
- Department of Biotechnology, Alagappa UniversityScience Campus, Karaikudi, 630003, Tamil Nadu, India
| | - S Amaradeepa
- Department of Zoology, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India
| | - S Raageshwari
- Department of Zoology, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India
| | - A V Swathilakshmi
- Department of Zoology, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India
| | - M Poonkothai
- Department of Zoology, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641043, Tamil Nadu, India.
| | - K Langeswaran
- Department of Biotechnology, Alagappa UniversityScience Campus, Karaikudi, 630003, Tamil Nadu, India.
| |
Collapse
|
8
|
Hernández-Caracheo K, Guerrero-López L, Rodríguez-Sánchez B, Rodríguez-Núñez E, Rodríguez-Chávez JL, Delgado-Lamas G, Campos-Guillén J, Amaro-Reyes A, Monroy-Dosta MDC, Zavala-Gómez CE, Chaparro-Sánchez R, Rodríguez-Morales JA, Pérez-Moreno V, Ramos-López MA. Evaluation of the Insecticidal Potential of Heterotheca inuloides Acetonic and Methanolic Extracts against Spodoptera frugiperda and Their Ecotoxicological Effect on Poecilia reticulata. PLANTS (BASEL, SWITZERLAND) 2023; 12:3555. [PMID: 37896019 PMCID: PMC10610112 DOI: 10.3390/plants12203555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/29/2023]
Abstract
For the management of Spodoptera frugiperda, botanical extracts have been used to reduce the environmental impacts of synthetic chemical pesticides. In the present investigation, the insecticidal activity of the acetonic and methanolic extracts of Heterotheca inuloides (Asteraceae) and of the main compound 7-hydroxy-3,4-dihydrocadalene on this pest as well as its ecotoxicological effect on Poecilia reticulata were evaluated. A greater insecticidal response was obtained from the acetonic extracts than from the methanolic extracts, with LC50 values of 730.4 ppm and 711.7 ppm for samples 1 and 2, respectively. Similarly, there was a lethal effect on 50% of the P. reticulata population at low concentrations in the acetonic extract compared to the methanolic extract. The sesquiterpene 7-hydroxy-3,4-dihydrocadalene has greater insecticidal activity by presenting an LC50 of 44.36 ppm; however, it is classified as moderately toxic for guppy fish.
Collapse
Affiliation(s)
- Karla Hernández-Caracheo
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| | - Lina Guerrero-López
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| | - Benjamín Rodríguez-Sánchez
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| | - Enrique Rodríguez-Núñez
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| | - José Luis Rodríguez-Chávez
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
- Ceickor University Center, Bernal Highway, Access to Ezequiel Montes Montes Km. 3, Los Benitos, CP., Queretaro 76299, Mexico
| | | | - Juan Campos-Guillén
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| | - Aldo Amaro-Reyes
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| | - María del Carmen Monroy-Dosta
- Man and His Environment Department, Metropolitan Autonomous University Xochimilco Unit, Calzada del Hueso 1100, Coyoacan, Mexico City 04960, Mexico
| | - Carlos Eduardo Zavala-Gómez
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| | - Ricardo Chaparro-Sánchez
- Faculty of Informatics, Autonomous University of Queretaro, Av. de las Ciencias s/n, Juriquilla 76101, Mexico
| | | | - Víctor Pérez-Moreno
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| | - Miguel Angel Ramos-López
- Faculty of Chemistry, Autonomous University of Queretaro, Queretaro 76010, Mexico (L.G.-L.); (A.A.-R.); (C.E.Z.-G.); (V.P.-M.)
| |
Collapse
|
9
|
Tufan-Cetin O, Cetin H. Use of micro and macroalgae extracts for the control of vector mosquitoes. PeerJ 2023; 11:e16187. [PMID: 37842039 PMCID: PMC10569164 DOI: 10.7717/peerj.16187] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/06/2023] [Indexed: 10/17/2023] Open
Abstract
Mosquitoes are one of the most dangerous vectors of human diseases such as malaria, dengue, chikungunya, and Zika virus. Controlling these vectors is a challenging responsibility for public health authorities worldwide. In recent years, the use of products derived from living organisms has emerged as a promising approach for mosquito control. Among these living organisms, algae are of great interest due to their larvicidal properties. Some algal species provide nutritious food for larvae, while others produce allelochemicals that are toxic to mosquito larvae. In this article, we reviewed the existing literature on the larvicidal potential of extracts of micro- and macroalgae, transgenic microalgae, and nanoparticles of algae on mosquitoes and their underlying mechanisms. The results of many publications show that the toxic effects of micro- and macroalgae on mosquitoes vary according to the type of extraction, solvents, mosquito species, exposure time, larval stage, and algal components. A few studies suggest that the components of algae that have toxic effects on mosquitoes show through synergistic interaction between components, inhibition of feeding, damage to gut membrane cells, and inhibition of digestive and detoxification enzymes. In conclusion, algae extracts, transgenic microalgae, and nanoparticles of algae have shown significant larvicidal activity against mosquitoes, making them potential candidates for the development of new mosquito control products.
Collapse
Affiliation(s)
- Ozge Tufan-Cetin
- Department of Environmental Protection Technology, Vocational School of Technical Sciences, Akdeniz University, Antalya, Türkiye
| | - Huseyin Cetin
- Department of Biology, Faculty of Science, Akdeniz University, Antalya, Türkiye
| |
Collapse
|
10
|
Salesa B, Torres-Gavilá J, Sancho E, Ferrando MD. Multigenerational effects of the insecticide Pyriproxyfen and recovery in Daphnia magna. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 886:164013. [PMID: 37164084 DOI: 10.1016/j.scitotenv.2023.164013] [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: 02/15/2023] [Revised: 04/27/2023] [Accepted: 05/04/2023] [Indexed: 05/12/2023]
Abstract
In the present study, an ecotoxicological approach to the evaluation of the insecticide Pyriproxifen in the crustacean Daphnia magna was done. Acute toxicity tests (48 h), feeding behavior test (5 h) and chronic toxicity test (21 days) were carried out on a parental daphnid generation (F0). Pyriproxifen D. magna EC50 value in our experimental conditions was 336.47 μg/L. Based on this result, sublethal test concentrations were selected for the feeding study and the F0 chronic experiment. Filtration and ingestion rates of D. magna exposed animals did not show any significant difference respect to control daphnids. However, daphnids from the parental F0 generation when exposed to the insecticide during 21 days showed a decreased in all the reproductive parameters tested (mean total neonates per female, mean brood size, time to first brood, and mean number of broods per female) as well as in the population statistic growth rate (r), although survival was not affected. On the other hand, offspring from F0 females exposed to the highest Pyriproxifen concentration (14.02 μg/L) were separated in two F1 generation experiments. One group was transferred during 21 days to a medium free of toxicant (F1 generation-TC group) while the other group was exposed during 21 days to the same insecticide concentration as their mothers (14.02 μg/L) (F1 generation-TT group). Results from both experiments determined a decreased in most of the reproductive parameters which was higher in the F1-TT group, although some of them were recovered in the F1-TC group. On the other hand, the morphological analysis of the daphnids showed that the coloration pattern was altered in the daphnids exposed to the insecticide, together with a significant size decreased, and neonates from F0 progeny with the same morphological abnormality. Finally, we determined that the insecticide caused the appearance of males among the offspring generated by the F0.
Collapse
Affiliation(s)
- Beatriz Salesa
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, c/Guillem de Castro 94, 46001, Valencia, Spain.
| | - Javier Torres-Gavilá
- Instituto de Investigación en Medio Ambiente y Ciencia Marina (IMEDMAR-UCV), c/Guillem de Castro 94, 46001, Valencia, Spain
| | - Encarnación Sancho
- Laboratory of Ecotoxicology, Dept. Functional Biology and Physical Anthropology, Faculty of Biology, University of Valencia, Dr. Moliner 50, E-46100 Burjassot, Valencia, Spain
| | - María Dolores Ferrando
- Laboratory of Ecotoxicology, Dept. Functional Biology and Physical Anthropology, Faculty of Biology, University of Valencia, Dr. Moliner 50, E-46100 Burjassot, Valencia, Spain
| |
Collapse
|
11
|
Gauthier M, Defrance J, Jumarie C, Vulliet E, Garric J, Boily M, Geffard O. Disruption of oogenesis and molting by methoprene and glyphosate in Gammarus fossarum: involvement of retinoic acid? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:86060-86071. [PMID: 37394563 DOI: 10.1007/s11356-023-28327-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/14/2023] [Indexed: 07/04/2023]
Abstract
In the last decade, the freshwater amphipod Gammarus fossarum proved to be a promising sentinel species in active biomonitoring programs to assess the effects of environmental contamination on non-target organisms. Given that the highly conserved retinoid (RETs) metabolism supports many biological functions and is perturbed by xenobiotics and used as biomarker for vertebrates, we explored the RETs functions in the crustacean model Gammarus fossarum. More specifically, we studied the implication of all -trans retinoic acid (atRA) in the reproduction (embryo, oocyte, and juvenile production) and development (success and delay of molting) by exposing G. fossarum females to atRA and citral (CIT), a known inhibitor of RA synthesis. In parallel, we exposed gammarids to methoprene (MET) and glyphosate (GLY), two pesticides suspected to interfere with atRA metabolism and signaling and frequently found in water systems. After 14 days of exposure, atRA, CIT, and MET reduced the number of oocytes, whereas only MET caused a reduced number of embryos. After 44 days, MET and GLY showed a tendency to decrease juvenile production. The duration of the molting cycle increased following the exposures to atRA and MET, while the treatment with CIT caused a typical endocrine disruptive inverted U-shaped curve. The exposure to GLY led to increased duration of the molting cycle at the lowest concentrations and lowered molting success at the highest concentration tested. This study highlights for the first time the implication of RA in the oogenesis and molting of G. fossarum and suggests that it may be a potential mediator of MET-induced effects on these processes. This study adds to the comprehension of the reproductive and developmental control in G. fossarum and opens new research avenues to study the effects of xenobiotics on the RET system in this sentinel species. Ultimately, our study will drive the development of RET-based biomarkers for non-target aquatic invertebrates exposed to xenobiotics.
Collapse
Affiliation(s)
- Maxime Gauthier
- Unité de Recherche RiverLy Ecotoxicology Laboratory, INRAE, 5, Rue de La Doua C.S. 20244, 69625, Villeurbanne Cedex, France
- Université du Québec À Montréal (UQAM), Département Des Sciences Biologiques, 141, Avenue du Président-Kennedy, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
| | - Jérémy Defrance
- Unité de Recherche RiverLy Ecotoxicology Laboratory, INRAE, 5, Rue de La Doua C.S. 20244, 69625, Villeurbanne Cedex, France
- École Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Univ. de Lyon, 15, Parvis René Descartes, 69342, Lyon Cedex 07, France
| | - Catherine Jumarie
- Université du Québec À Montréal (UQAM), Département Des Sciences Biologiques, 141, Avenue du Président-Kennedy, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
| | - Emmanuelle Vulliet
- Univ. Lyon, CNRS, Université Claude Bernard Lyon 1, Institut Des Sciences Analytiques, UMR 5280, 5, Rue de La Doua, 69100, Villeurbanne, France
| | - Jeanne Garric
- Unité de Recherche RiverLy Ecotoxicology Laboratory, INRAE, 5, Rue de La Doua C.S. 20244, 69625, Villeurbanne Cedex, France
| | - Monique Boily
- Université du Québec À Montréal (UQAM), Département Des Sciences Biologiques, 141, Avenue du Président-Kennedy, C.P. 8888, Succursale Centre-Ville, Montréal, Québec, H3C 3P8, Canada
| | - Olivier Geffard
- Unité de Recherche RiverLy Ecotoxicology Laboratory, INRAE, 5, Rue de La Doua C.S. 20244, 69625, Villeurbanne Cedex, France.
| |
Collapse
|
12
|
Bihal R, Al-Khayri JM, Banu AN, Kudesia N, Ahmed FK, Sarkar R, Arora A, Abd-Elsalam KA. Entomopathogenic Fungi: An Eco-Friendly Synthesis of Sustainable Nanoparticles and Their Nanopesticide Properties. Microorganisms 2023; 11:1617. [PMID: 37375119 DOI: 10.3390/microorganisms11061617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/08/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
The agricultural industry could undergo significant changes due to the revolutionary potential of nanotechnology. Nanotechnology has a broad range of possible applications and advantages, including insect pest management using treatments based on nanoparticle insecticides. Conventional techniques, such as integrated pest management, are inadequate, and using chemical pesticides has negative consequences. As a result, nanotechnology would provide ecologically beneficial and effective alternatives for insect pest control. Considering the remarkable traits they exhibit, silver nanoparticles (AgNPs) are recognized as potential prospects in agriculture. Due to their efficiency and great biocompatibility, the utilization of biologically synthesized nanosilver in insect pest control has significantly increased nowadays. Silver nanoparticles have been produced using a wide range of microbes and plants, which is considered an environmentally friendly method. However, among all, entomopathogenic fungi (EPF) have the most potential to be used in the biosynthesis of silver nanoparticles with a variety of properties. Therefore, in this review, different ways to get rid of agricultural pests have been discussed, with a focus on the importance and growing popularity of biosynthesized nanosilver, especially silver nanoparticles made from fungi that kill insects. Finally, the review highlights the need for further studies so that the efficiency of bio-nanosilver could be tested for field application and the exact mode of action of silver nanoparticles against pests can be elucidated, which will eventually be a boon to the agricultural industry for putting a check on pest populations.
Collapse
Affiliation(s)
- Ritu Bihal
- Department of Zoology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144001, India
| | - Jameel M Al-Khayri
- Department of Agricultural Biotechnology, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - A Najitha Banu
- Department of Zoology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144001, India
| | - Natasha Kudesia
- Department of Zoology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144001, India
| | - Farah K Ahmed
- Biotechnology English Program, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Rudradeb Sarkar
- Department of Zoology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144001, India
| | - Akshit Arora
- Department of Zoology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144001, India
| | - Kamel A Abd-Elsalam
- Plant Pathology Research Institute, Agricultural Research Center, Giza 12619, Egypt
| |
Collapse
|
13
|
Nelsen J, Yee DA. Non-target effects of methoprene and larvicidal surface films on invertebrate predators of mosquito larvae. JOURNAL OF VECTOR ECOLOGY : JOURNAL OF THE SOCIETY FOR VECTOR ECOLOGY 2023; 48:41-51. [PMID: 37255358 DOI: 10.52707/1081-1710-48.1.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/01/2023] [Indexed: 06/01/2023]
Abstract
Mosquito larvicides are used across a variety of aquatic habitats, although when applied they likely affect other aquatic organisms. The removal or impairment of top insect predators via larvicides could be beneficial to mosquitoes by allowing their populations to rebound once pesticide levels dissipate. Our goal was to determine if two larvicide types, growth regulators (IGRs) and surface films (SFs), harm non-target aquatic insect communities, and if these chemicals influence the ability of predatory aquatic insects to regulate mosquitoes. We surveyed aquatic sites before and after IGR and SF-application, then compared changes in insect community structure. Evenness was lower in SF treated habitats, and when analyzing prey/controphic taxa only, evenness and diversity changed in untreated reference areas, suggesting that differences measured were due to other environmental factors, not larvicide presence. A field experiment was then conducted by exposing specific predatory aquatic insects to varying doses of IGRs and SFs and then placing them in mesocosms containing mosquito larvae. Surface films were directly lethal to adult dytiscids at recommended and high concentrations. Although we found no significant differences in mosquito emergence among all treatment levels, there was a trend of negative controls (no predator mesocosms) and SF-treated predators allowing the most mosquitoes to emerge compared to positive controls (predators not exposed to larvicides) and IGR-treated predators. Thus, these larvicides may have minimal effects on mosquito larvae predators, but the direct effects of surface films on insects that interact with the water's surface require further investigation.
Collapse
Affiliation(s)
- Joseph Nelsen
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS 39460, U.S.A.,
| | - Donald A Yee
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS 39460, U.S.A
| |
Collapse
|
14
|
MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvae. Sci Rep 2023; 13:3041. [PMID: 36810640 PMCID: PMC9944263 DOI: 10.1038/s41598-023-29501-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/06/2023] [Indexed: 02/23/2023] Open
Abstract
Adult mosquito females, through their bites, are responsible for the transmission of different zoonotic pathogens. Although adult control represents a pillar for the prevention of disease spread, larval control is also crucial. Herein we characterized the effectiveness of a suitable tool, named "MosChito raft", for the aquatic delivery of a Bacillus thuringiensis var. israelensis (Bti) formulate, a bioinsecticide active by ingestion against mosquito larvae. MosChito raft is a floating tool composed by chitosan cross-linked with genipin in which a Bti-based formulate and an attractant have been included. MosChito rafts (i) resulted attractive for the larvae of the Asian tiger mosquito Aedes albopictus, (ii) induced larval mortality within a few hours of exposure and, more importantly, (iii) protected the Bti-based formulate, whose insecticidal activity was maintained for more than one month in comparison to the few days residual activity of the commercial product. The delivery method was effective in both laboratory and semi-field conditions, demonstrating that MosChito rafts may represent an original, eco-based and user-friendly solution for larval control in domestic and peri-domestic aquatic habitats such as saucers and artificial containers in residential or urban environments.
Collapse
|
15
|
Comparative Transcriptome Analysis to Investigate the Immunotoxicity Mechanism Triggered by Dimethomorph on Human Jurkat T Cell Lines. Foods 2022; 11:foods11233848. [PMID: 36496656 PMCID: PMC9738110 DOI: 10.3390/foods11233848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/20/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022] Open
Abstract
Dimethomorph (DMM) is a broad-spectrum fungicide used globally in agricultural production, but little is known regarding the immunotoxicity of DMM in humans. In this study, the immunotoxicity of DMM on human Jurkat T cells was evaluated in vitro. The results indicated that the half-effective concentration (EC50) of DMM for Jurkat cells was 126.01 mg/L (0.32 mM). To further elucidate the underlying mechanism, transcriptomics based on RNA sequencing for exposure doses of EC25 (M21) and EC10 (L4) was performed. The results indicated that compared to untreated samples (Ctr), 121 genes (81 upregulated, 40 downregulated) and 30 genes (17 upregulated, 13 downregulated) were significantly differentially regulated in the L4 and M21 samples, respectively. A gene ontology analysis indicated that the significantly differentially expressed genes (DEGs) were mostly enriched in the negative regulation of cell activities, and a KEGG pathway analysis indicated that the DEGs were mainly enriched in the immune regulation and signal transduction pathways. A quantitative real-time PCR for the selected genes showed that compared to the high-dose exposure (M21), the effect of the low-dose DMM exposure (L4) on gene expression was more significant. The results indicated that DMM has potential immunotoxicity for humans, and this toxicity cannot be ignored even at low concentrations.
Collapse
|
16
|
A Review of the Use of Pyriproxyfen for Controlling Aedes aegypti in Argentina. CURRENT TROPICAL MEDICINE REPORTS 2022. [DOI: 10.1007/s40475-022-00278-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
17
|
Larval mosquito management and risk to aquatic ecosystems: A comparative approach including current tactics and gene-drive Anopheles techniques. Transgenic Res 2022; 31:489-504. [PMID: 35798930 PMCID: PMC9489571 DOI: 10.1007/s11248-022-00315-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 06/13/2022] [Indexed: 11/23/2022]
Abstract
Genetic engineering of mosquitoes represents a promising tactic for reducing human suffering from malaria. Gene-drive techniques being developed that suppress or modify populations of Anopheles gambiae have the potential to be used with, or even possibly obviate, microbial and synthetic insecticides. However, these techniques are new and therefore there is attendant concern and uncertainty from regulators, policymakers, and the public about their environmental risks. Therefore, there is a need to assist decision-makers and public health stewards by assessing the risks associated with these newer mosquito management tactics so the risks can be compared as a basis for informed decision making. Previously, the effect of gene-drive mosquitoes on water quality in Africa was identified as a concern by stakeholders. Here, we use a comparative risk assessment approach for the effect of gene-drive mosquitoes on water quality in Africa. We compare the use of existing larvicides and the proposed genetic techniques in aquatic environments. Based on our analysis, we conclude that the tactic of gene-drive Anopheles for malaria management is unlikely to result in risks to aquatic environments that exceed current tactics for larval mosquitoes. As such, these new techniques would likely comply with currently recommended safety standards.
Collapse
|
18
|
Al-Zharani M, Al-Eissa MS, Rudayni HA, ali D, alarifi S, SurendraKumar R, Idhayadhulla A. Mosquito larvicidal activity of pyrrolidine-2,4-dione derivatives: An investigation against Culex quinquefasciatus and molecular docking studies. Saudi J Biol Sci 2022; 29:2389-2395. [PMID: 35531199 PMCID: PMC9072886 DOI: 10.1016/j.sjbs.2021.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/15/2021] [Accepted: 12/04/2021] [Indexed: 11/05/2022] Open
Abstract
The pyrrolidine-2,4-dione derivatives were used to conduct a larvicidal test on Culex quinquefasciatus larvae of the second instar. Mannich base condensation method was used to synthesis the pyrrolidine-2,4-dione derivatives by grindstone method. The reaction conditions were mild, resulting in high yields. An analysis of the synthesized compounds was carried out using FTIR, 1H NMR, 13C NMR, mass spectrometry, and elemental analysis. Synthesized compounds (1a-h) were evaluated for larvicidal activities. Compound 1e (LD50: 26.06 µg/mL), and 1f (LD50: 26.89 µg/mL), and were notably more active against Culex quinquefasciatus than permethrin (LD50: 26.14 µg/mL). The docking studies also demonstrated that 1e, and 1f are potent larvicides with higher binding energy (−12.6 kcal/mol) than the control in the mosquito odorant binding protein (PDB ID: 3OGN). The larvicidal properties of lead molecules have made them important for use as insecticides.
Collapse
|
19
|
Córdoba-Aguilar A, San Miguel-Rodríguez M, Rocha-Ortega M, Lanz-Mendoza H, Cime-Castillo J, Benelli G. Adult damselflies as possible regulators of mosquito populations in urban areas. PEST MANAGEMENT SCIENCE 2021; 77:4274-4287. [PMID: 34086403 DOI: 10.1002/ps.6496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/28/2021] [Accepted: 06/04/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Dragonfly and damselfly larvae have been considered as possible biocontrol agents against young instars of mosquito vectors in urban environments. Yet our knowledge about adult odonate predation against mosquito adults is scarce. We quantified daily and annual predation rates, consumption rates and prey preferences of adult Hetaerina vulnerata male damselflies in an urban park. A focus on predation of mosquito species was provided, quantified their arbovirus (dengue, chikungunya and Zika) infection rates and biting activity. RESULTS Foraging times of H. vulnerata overlapped with those of the maximum activity of hematophagous mosquitoes. The most consumed preys were Diptera and Hymenoptera and, in lower quantities, Hemiptera, Coleoptera, Trichoptera, Psocoptera and Neuroptera. Of note, 7% of the diet was represented by hematophagous dipterans, with 2.4% being Aedes aegypti and Aedes albopictus. Prey abundance in the diet coincided with that of the same species in the environment. The arboviral infection rate (dengue, chikungunya and Zika) was 1.6% for A. aegypti and A. albopictus. The total biting rate of these mosquito vectors was 16 bites per person per day, while the annual rate of infectious bites was 93.4. CONCLUSION Although 2.4% for both Aedes species seems a low consumption, considering the presence of 12 odonate species at the park, it can be argued that adult odonates may play a relevant role as mosquito vector regulators, therefore impacting the spread of mosquito-borne diseases. Our study outlines the need for further research on the topic of the possible role of adult odonates for mosquito biocontrol. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Alex Córdoba-Aguilar
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Coyoacán, Mexico
| | | | - Maya Rocha-Ortega
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Coyoacán, Mexico
| | - Humberto Lanz-Mendoza
- Centro de Investigaciones Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Jorge Cime-Castillo
- Centro de Investigaciones Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| |
Collapse
|
20
|
Hapairai LK, Mysore K, James LD, Scheel ND, Realey JS, Sun L, Gerber LE, Feng RS, Romero-Severson E, Mohammed A, Duman-Scheel M, Severson DW. Evaluation of large volume yeast interfering RNA lure-and-kill ovitraps for attraction and control of Aedes mosquitoes. MEDICAL AND VETERINARY ENTOMOLOGY 2021; 35:361-370. [PMID: 33377553 PMCID: PMC11095413 DOI: 10.1111/mve.12504] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/23/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
Aedes mosquitoes (Diptera: Culicidae), principle vectors of several arboviruses, typically lay eggs in man-made water-filled containers located near human dwellings. Given the widespread emergence of insecticide resistance, stable and biofriendly alternatives for mosquito larviciding are needed. Laboratory studies have demonstrated that inactivated yeast interfering RNA tablets targeting key larval developmental genes can be used to facilitate effective larvicidal activity while also promoting selective gravid female oviposition behaviour. Here we examined the efficacy of transferring this technology toward development of lure-and-kill ovitraps targeting Aedes aegypti (L.) and Aedes albopictus (Skuse) female mosquitoes. Insectary, simulated field and semi-field experiments demonstrated that two mosquito-specific yeast interfering RNA pesticides induce high levels of mortality among larvae of both species in treated large volume containers. Small-scale field trials conducted in Trinidad, West Indies demonstrated that large volume ovitrap containers baited with inactivated yeast tablets lure significantly more gravid females than traps containing only water and were highly attractive to both A. aegypti and A. albopictus females. These studies indicate that development of biorational yeast interfering RNA-baited ovitraps may represent a new tool for control of Aedes mosquitoes, including deployment in existing lure-and-kill ovitrap technologies or traditional container larviciding programs.
Collapse
Affiliation(s)
- Limb K. Hapairai
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, South Bend, IN, 46617 U.S.A
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
| | - Keshava Mysore
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, South Bend, IN, 46617 U.S.A
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
| | - Lester D. James
- Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad, Trinidad and Tobago
| | - Nicholas D. Scheel
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
| | - Jacob S. Realey
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, South Bend, IN, 46617 U.S.A
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
| | - Longhua Sun
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, South Bend, IN, 46617 U.S.A
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
| | - Laura E. Gerber
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, South Bend, IN, 46617 U.S.A
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
| | - Rachel Shui Feng
- Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad, Trinidad and Tobago
| | - Ethan Romero-Severson
- Theoretical Biology and Biophysics Group, Los Alamos National Laboratory, Los Alamos, NM, 87545 U.S.A
| | - Azad Mohammed
- Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad, Trinidad and Tobago
| | - Molly Duman-Scheel
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, South Bend, IN, 46617 U.S.A
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
| | - David W. Severson
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, South Bend, IN, 46617 U.S.A
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
- Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad, Trinidad and Tobago
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556 U.S.A
| |
Collapse
|
21
|
Kondapaneni R, Malcolm AN, Vazquez BM, Zeng E, Chen TY, Kosinski KJ, Romero-Weaver AL, Giordano BV, Allen B, Riles MT, Killingsworth D, Campbell LP, Caragata EP, Lee Y. Mosquito Control Priorities in Florida-Survey Results from Florida Mosquito Control Districts. Pathogens 2021; 10:pathogens10080947. [PMID: 34451411 PMCID: PMC8401384 DOI: 10.3390/pathogens10080947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/24/2021] [Accepted: 07/25/2021] [Indexed: 11/16/2022] Open
Abstract
Florida lies within a subtropical region where the climate allows diverse mosquito species including invasive species to thrive year-round. As of 2021, there are currently 66 state-approved Florida Mosquito Control Districts, which are major stakeholders for Florida public universities engaged in mosquito research. Florida is one of the few states with extensive organized mosquito control programs. The Florida State Government and Florida Mosquito Control Districts have long histories of collaboration with research institutions. During fall 2020, we carried out a survey to collect baseline data on the current control priorities from Florida Mosquito Control Districts relating to (1) priority control species, (2) common adult and larval control methods, and (3) major research questions to address that will improve their control and surveillance programs. The survey data showed that a total of 17 distinct mosquito species were considered to be priority control targets, with many of these species being understudied. The most common control approaches included truck-mounted ultra-low-volume adulticiding and biopesticide-based larviciding. The districts held interest in diverse research questions, with many prioritizing studies on basic science questions to help develop evidence-based control strategies. Our data highlight the fact that mosquito control approaches and priorities differ greatly between districts and provide an important point of comparison for other regions investing in mosquito control, particularly those with similar ecological settings, and great diversity of potential mosquito vectors, such as in Florida. Our findings highlight a need for greater alignment of research priorities between mosquito control and mosquito research. In particular, we note a need to prioritize filling knowledge gaps relating to understudied mosquito species that have been implicated in arbovirus transmission.
Collapse
Affiliation(s)
- Rishi Kondapaneni
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Ashley N. Malcolm
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Brian M. Vazquez
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Eric Zeng
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Tse-Yu Chen
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Kyle J. Kosinski
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Ana L. Romero-Weaver
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Bryan V. Giordano
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Benjamin Allen
- Mosquito Control Division, City of Jacksonville, Jacksonville, FL 32202, USA;
| | - Michael T. Riles
- Beach Mosquito Control District, Panama City Beach, FL 32413, USA;
| | | | - Lindsay P. Campbell
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Eric P. Caragata
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
| | - Yoosook Lee
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL 32962, USA; (R.K.); (A.N.M.); (B.M.V.); (E.Z.); (T.-Y.C.); (K.J.K.); (A.L.R.-W.); (B.V.G.); (L.P.C.); (E.P.C.)
- Correspondence:
| |
Collapse
|
22
|
Duarte B, Gameiro C, Matos AR, Figueiredo A, Silva MS, Cordeiro C, Caçador I, Reis-Santos P, Fonseca V, Cabrita MT. First screening of biocides, persistent organic pollutants, pharmaceutical and personal care products in Antarctic phytoplankton from Deception Island by FT-ICR-MS. CHEMOSPHERE 2021; 274:129860. [PMID: 33607598 DOI: 10.1016/j.chemosphere.2021.129860] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/27/2021] [Accepted: 02/01/2021] [Indexed: 05/26/2023]
Abstract
In recent years, the Antarctic territory has seen a rise in the number of tourists and scientists. This has led to an increase in the anthropogenic footprint in Antarctic ecosystems, namely in terms of emerging contaminants, such as Biocides, Persistent Organic Pollutants (POPs) as well as Pharmaceutical and Personal Care Products (PPCPs). Yet scarce information on the presence of these emerging contaminants is available for trophic compartments, especially the phytoplankton community. Using high resolution Fourier-transform ion cyclotron-resonance mass spectrometry (FT-ICR-MS), an untargeted screening of the metabolome of the phytoplankton community was performed. Seventy different contaminant compounds were found to be present in phytoplankton collected at two sites in Port Foster Bay at Deception Island. These emerging contaminants included 1 polycyclic aromatic hydrocarbon (PAH), 10 biocides (acaricides, fungicides, herbicides, insecticides and nematicides), 11 POPs (flame retardants, paints and dyes, polychlorinated biphenyl (PCB), phthalates and plastic components), 5 PCPs (cosmetic, detergents and dietary compounds), 40 pharmaceutical compounds and 3 illicit drugs. Pharmaceutical compounds were, by far, the largest group of emerging contaminants found in phytoplankton cells (anticonvulsants, antihypertensives and beta-blockers, antibiotics, analgesic and anti-inflammatory drugs). The detection of several of these potentially toxic compounds at the basis of the marine food web has potentially severe impacts for the whole ecosystem trophic structure. Additionally, the present findings also point out that the guidelines proposed by the Antarctic Treaty and Protocol on Environmental Protection to the Antarctic Treaty should be revisited to avoid the proliferation of these and other PPCPs in such sensitive environments.
Collapse
Affiliation(s)
- Bernardo Duarte
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Departamento de Biologia Vegetal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal.
| | - Carla Gameiro
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Instituto Do Mar e da Atmosfera (IPMA), Rua Alfredo Magalhães Ramalho, 6, 1495-006, Algés, Lisboa, Portugal
| | - Ana Rita Matos
- BioISI - Biosystems and Integrative Sciences Institute, Plant Functional Genomics Group, Departamento de Biologia Vegetal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Departamento de Biologia Vegetal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Andreia Figueiredo
- BioISI - Biosystems and Integrative Sciences Institute, Plant Functional Genomics Group, Departamento de Biologia Vegetal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Departamento de Biologia Vegetal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Marta Sousa Silva
- Laboratório de FT-ICR e Espectrometria de Massa Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo-Grande, 1749-016, Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Carlos Cordeiro
- Laboratório de FT-ICR e Espectrometria de Massa Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo-Grande, 1749-016, Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Isabel Caçador
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Departamento de Biologia Vegetal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Patrick Reis-Santos
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Southern Seas Ecology Laboratories, School of Biological Sciences, The University of Adelaide, SA, 5005, Australia
| | - Vanessa Fonseca
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Maria Teresa Cabrita
- Centro de Estudos Geográficos (CEG), Instituto de Geografia e Ordenamento Do Território (IGOT), Universidade de Lisboa, Rua Branca Edmée Marques, 1600-276, Lisboa, Portugal
| |
Collapse
|
23
|
Tudi M, Daniel Ruan H, Wang L, Lyu J, Sadler R, Connell D, Chu C, Phung DT. Agriculture Development, Pesticide Application and Its Impact on the Environment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1112. [PMID: 33513796 PMCID: PMC7908628 DOI: 10.3390/ijerph18031112] [Citation(s) in RCA: 437] [Impact Index Per Article: 145.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/13/2021] [Accepted: 01/19/2021] [Indexed: 12/12/2022]
Abstract
Pesticides are indispensable in agricultural production. They have been used by farmers to control weeds and insects, and their remarkable increases in agricultural products have been reported. The increase in the world's population in the 20th century could not have been possible without a parallel increase in food production. About one-third of agricultural products are produced depending on the application of pesticides. Without the use of pesticides, there would be a 78% loss of fruit production, a 54% loss of vegetable production, and a 32% loss of cereal production. Therefore, pesticides play a critical role in reducing diseases and increasing crop yields worldwide. Thus, it is essential to discuss the agricultural development process; the historical perspective, types and specific uses of pesticides; and pesticide behavior, its contamination, and adverse effects on the natural environment. The review study indicates that agricultural development has a long history in many places around the world. The history of pesticide use can be divided into three periods of time. Pesticides are classified by different classification terms such as chemical classes, functional groups, modes of action, and toxicity. Pesticides are used to kill pests and control weeds using chemical ingredients; hence, they can also be toxic to other organisms, including birds, fish, beneficial insects, and non-target plants, as well as air, water, soil, and crops. Moreover, pesticide contamination moves away from the target plants, resulting in environmental pollution. Such chemical residues impact human health through environmental and food contamination. In addition, climate change-related factors also impact on pesticide application and result in increased pesticide usage and pesticide pollution. Therefore, this review will provide the scientific information necessary for pesticide application and management in the future.
Collapse
Affiliation(s)
- Muyesaier Tudi
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, No. 11 Datun Road, Beijing 100101, China; (M.T.); (J.L.)
- Centre for Environment and Population Health, School of Medicine, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia; (H.D.R.); (R.S.); (C.C.); (D.T.P.)
| | - Huada Daniel Ruan
- Centre for Environment and Population Health, School of Medicine, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia; (H.D.R.); (R.S.); (C.C.); (D.T.P.)
- Environmental Science Program, Beijing Normal University-Hong Kong Baptist University United International College, 2000 Jintong Road, Tangjiawan, Zhuhai 519080, China
| | - Li Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, No. 11 Datun Road, Beijing 100101, China; (M.T.); (J.L.)
- Faculty of Health, Medicine and Life Sciences, Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Jia Lyu
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, No. 11 Datun Road, Beijing 100101, China; (M.T.); (J.L.)
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, No. 29 Nanwei Road, Beijing 100050, China
| | - Ross Sadler
- Centre for Environment and Population Health, School of Medicine, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia; (H.D.R.); (R.S.); (C.C.); (D.T.P.)
| | - Des Connell
- School of Environment and Science, Griffith University, 170 Kessel Road, Nathan, QLD 4111, Australia;
| | - Cordia Chu
- Centre for Environment and Population Health, School of Medicine, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia; (H.D.R.); (R.S.); (C.C.); (D.T.P.)
| | - Dung Tri Phung
- Centre for Environment and Population Health, School of Medicine, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia; (H.D.R.); (R.S.); (C.C.); (D.T.P.)
| |
Collapse
|
24
|
Yusoff N, Abd Ghani I, Othman NW, Aizat WM, Hassan M. Toxicity and Sublethal Effect of Farnesyl Acetate on Diamondback Moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae). INSECTS 2021; 12:109. [PMID: 33513706 PMCID: PMC7910910 DOI: 10.3390/insects12020109] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 12/30/2022]
Abstract
The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is the most important pest of cruciferous vegetables worldwide. In this study, we evaluated the properties of selected farnesyl derivative compounds against P. xylostella. The toxicity and sublethal concentration (LC50) of farnesyl acetate, farnesyl acetone, farnesyl bromide, farnesyl chloride, and hexahydrofarnesyl acetone were investigated for 96 h. The leaf-dip bioassays showed that farnesyl acetate had a high level of toxicity against P. xylostella compared to other tested farnesyl derivatives. The LC50 value was 56.41 mg/L on the second-instar larvae of P. xylostella. Then, the sublethal effects of farnesyl acetate on biological parameters of P. xylostella were assessed. Compared to the control group, the sublethal concentration of farnesyl acetate decreased pupation and emergence rates, pupal weight, fecundity, egg hatching rate, female ratio, and oviposition period. Furthermore, the developmental time of P. xylostella was extended after being exposed to farnesyl acetate. Moreover, the application of farnesyl acetate on P. xylostella induced morphogenetic abnormalities in larval-pupal intermediates, adults that emerged with twisted wings, or complete adults that could not emerge from the cocoon. These results suggested that farnesyl acetate was highly effective against P. xylostella. The sublethal concentration of farnesyl acetate could reduce the population of P. xylostella by increasing abnormal pupal and adults, and by delaying its development period.
Collapse
Affiliation(s)
- Norazila Yusoff
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi 43600 UKM, Selangor, Malaysia; (N.Y.); (W.M.A.)
| | - Idris Abd Ghani
- Centre for Insect Systematics, Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600 UKM, Selangor, Malaysia; (I.A.G.); (N.W.O.)
| | - Nurul Wahida Othman
- Centre for Insect Systematics, Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600 UKM, Selangor, Malaysia; (I.A.G.); (N.W.O.)
| | - Wan Mohd Aizat
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi 43600 UKM, Selangor, Malaysia; (N.Y.); (W.M.A.)
| | - Maizom Hassan
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi 43600 UKM, Selangor, Malaysia; (N.Y.); (W.M.A.)
| |
Collapse
|
25
|
Falqueto SA, Pitaluga BF, de Sousa JR, Targanski SK, Campos MG, de Oliveira Mendes TA, da Silva GF, Silva DHS, Soares MA. Bacillus spp. metabolites are effective in eradicating Aedes aegypti (Diptera: Culicidae) larvae with low toxicity to non-target species. J Invertebr Pathol 2020; 179:107525. [PMID: 33383067 DOI: 10.1016/j.jip.2020.107525] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/14/2020] [Accepted: 12/23/2020] [Indexed: 11/18/2022]
Abstract
The growing spread of dengue, chikungunya and Zika viruses demand the development of new and environmentally safe control methods for their vector, the mosquito Aedes aegypti. This study aims to find novel larvicidal agents from mutualistic (endophytic and rhizospheric) or edaphic bacteria that have no action against non-target organisms. Eleven out of the 254 bacterial strains tested were able to kill Ae. aegypti larvae. Larvicidal activity did not depend on presence of cells, since culture supernatants or crude lipopeptide extracts (CLEs) killed the larvae. Bacillus safensis BacI67 and Bacillus paranthracis C21 supernatants were the best performing supernatants, displaying the lowest lethal concentrations (LC50 = 31.11 µL/mL and 45.84 µL/mL, respectively). Bacillus velezensis B64a and Bacillus velezensis B15 produced the best performing CLEs (LC50 = 0.11 mg/mL and 0.12 mg/mL, respectively). Mass spectrometry analysis of CLEs detected a mixture of surfactins, iturins, and fengycins. The samples tested were weakly- or non-toxic to mammalian cells (RAW 264.7 macrophages and VERO cells) and non-target organisms (Caenorhabditis elegans, Galleria mellonella, Scenedesmus obliquus, and Tetrahymena pyriformis) - especially B. velezensis B15 CLE. The biosynthetic gene clusters related to secondary metabolism identified by whole genome sequencing of the four best performing bacteria strains revealed clusters for bacteriocin, beta-lactone, lanthipeptide, non-ribosomal peptide synthetases, polyketide synthases (PKS), siderophores, T3PKS, type 1 PKS-like, terpenes, thiopeptides, and trans-AT-PKS. Purification of lipopeptides may clarify the mechanisms by which these extracts kill Ae. aegypti larvae.
Collapse
Affiliation(s)
- Silvia Altoé Falqueto
- Departamento de Botânica e Ecologia, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa 2367, 78060-900 Cuiabá, Brazil
| | - Bruno Faria Pitaluga
- Departamento de Botânica e Ecologia, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa 2367, 78060-900 Cuiabá, Brazil
| | - Janaína Rosa de Sousa
- Departamento de Botânica e Ecologia, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa 2367, 78060-900 Cuiabá, Brazil
| | - Sabrina Ketrin Targanski
- Departamento de Botânica e Ecologia, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa 2367, 78060-900 Cuiabá, Brazil
| | - Mateus Gandra Campos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, Brazil
| | | | | | - Dulce Helena Siqueira Silva
- Centro de Inovação em Biodiversidade e Fármacos, Instituto de Química, Universidade Estadual Paulista Júlio de Mesquita Filho, Araraquara, Brazil
| | - Marcos Antônio Soares
- Departamento de Botânica e Ecologia, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa 2367, 78060-900 Cuiabá, Brazil.
| |
Collapse
|
26
|
Feng J, Chen W, Liu Q, Chen Z, Yang J, Yang W. Development of abamectin-loaded nanoemulsion and its insecticidal activity and cytotoxicity. PEST MANAGEMENT SCIENCE 2020; 76:4192-4201. [PMID: 32592445 DOI: 10.1002/ps.5976] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/04/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Owing to the advantages of high-efficiency, environmental protection and safety, nanoemulsions have become a highly popular water-insoluble pesticide delivery system in recent years. RESULTS In this study, abamectin-loaded nanoemulsion with remarkable physical stability and application performance was obtained by selecting the type and concentration of surfactant and the emulsification method. The optimal formula was 2% abamectin and 5% castor oil polyoxyethylene (EL-40) dissolved in 7.5% hydrocarbon solvent (S-200) made up to 100% with deionized water, which conformed to the quality indicators from the Food and Agriculture Organization (FAO) standards. Droplets on cabbage leaves showed a small dynamic contact angle, which ensured that the resulting nanoemulsion exhibited excellent wettability and diffusivity. Compared with emulsifiable concentrates (EC) and microemulsions (ME), the abamectin-loaded nanoemulsion had the lowest LC50 (0.0686 mg L-1 ) to third-instar larva of Plutella xylostella, causing the larval body to blacken and shrivel, which improved insecticidal activity. In addition, the abamectin-loaded nanoemulsion had low cytotoxicity. The viability of dendritic cells with added nanoemulsion reached 100% after 2 h, whereas that of cells with EC and ME was lower. After 24 h, the cell viability of dendritic cells with added ME was 0. CONCLUSION This research facilitated the design and fabrication of nanoemulsions for water-insoluble pesticide to enhance insecticidal activity, lower cytotoxicity and reduce environmental pollution. © 2020 Society of Chemical Industry.
Collapse
Affiliation(s)
- Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - Wang Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - Qi Liu
- Medical College, Yangzhou University, Yangzhou, China
| | - Zhiyang Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - Jinghan Yang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - Wenchao Yang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| |
Collapse
|
27
|
Zhou G, Lo E, Githeko AK, Afrane YA, Yan G. Long-lasting microbial larvicides for controlling insecticide resistant and outdoor transmitting vectors: a cost-effective supplement for malaria interventions. Infect Dis Poverty 2020; 9:162. [PMID: 33243294 PMCID: PMC7691065 DOI: 10.1186/s40249-020-00767-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 10/19/2020] [Indexed: 01/19/2023] Open
Abstract
The issues of pyrethroid resistance and outdoor malaria parasite transmission have prompted the WHO to call for the development and adoption of viable alternative vector control methods. Larval source management is one of the core malaria vector interventions recommended by the Ministry of Health in many African countries, but it is rarely implemented due to concerns on its cost-effectiveness. New long-lasting microbial larvicide can be a promising cost-effective supplement to current vector control and elimination methods because microbial larvicide uses killing mechanisms different from pyrethroids and other chemical insecticides. It has been shown to be effective in reducing the overall vector abundance and thus both indoor and outdoor transmission. In our opinion, the long-lasting formulation can potentially reduce the cost of larvicide field application, and should be evaluated for its cost-effectiveness, resistance development, and impact on non-target organisms when integrating with other malaria vector control measures. In this opinion, we highlight that long-lasting microbial larvicide can be a potential cost-effective product that complements current front-line long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) programs for malaria control and elimination. Microbial larviciding targets immature mosquitoes, reduces both indoor and outdoor transmission and is not affected by vector resistance to synthetic insecticides. This control method is a shift from the conventional LLINs and IRS programs that mainly target indoor-biting and resting adult mosquitoes.
Collapse
Affiliation(s)
- Guofa Zhou
- Program in Public Health, University of California, Irvine, CA 92697 USA
| | - Eugenia Lo
- Program in Public Health, University of California, Irvine, CA 92697 USA
- Department of Biological Sciences, University of North Carolina, Charlotte, NC 28223 USA
| | - Andrew K. Githeko
- Central for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Yaw A. Afrane
- Department of Medical Microbiology, University of Ghana, Accra, Ghana
| | - Guiyun Yan
- Program in Public Health, University of California, Irvine, CA 92697 USA
| |
Collapse
|
28
|
Maharajan K, Muthulakshmi S, Karthik C, Nataraj B, Nambirajan K, Hemalatha D, Jiji S, Kadirvelu K, Liu KC, Ramesh M. Pyriproxyfen induced impairment of reproductive endocrine homeostasis and gonadal histopathology in zebrafish (Danio rerio) by altered expression of hypothalamus-pituitary-gonadal (HPG) axis genes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 735:139496. [PMID: 32480152 DOI: 10.1016/j.scitotenv.2020.139496] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 06/11/2023]
Abstract
Pyriproxyfen (PPF), a broad-spectrum insecticide known to cause reproductive and endocrine disruption in invertebrates, while the data is scarce in aquatic vertebrates. The goal of this study is to investigate the impact of PPF on reproductive endocrine system of male and female zebrafish along hypothalamus-pituitary-gonadal (HPG) axis. In brain, PPF caused significant alteration in the transcripts of erα, lhβ, and cyp19b genes in male and fshβ, lhβ, and cyp19b genes in female zebrafish. The downstream genes of steroidogenic pathway like, star, 3βhsd, 17βhsd, and cyp19a expression were significantly altered in gonad of both sexes. Subsequent changes in circulatory steroid hormone levels lead to imbalance in hormone homeostasis as revealed from estradiol/testosterone (E2/T) ratio. Further, the vitellogenin transcript level was enhanced in hepatic tissues and their blood plasma content was increased in male (16.21%) and declined in female (21.69%). PPF also induced histopathological changes in gonads such as, reduction of mature spermatocytes in male and vitellogenic oocytes in female zebrafish. The altered E2/T ratio and gonadal histopathology were supported by the altered transcript levels of HPG axis genes. Overall, these findings provide new insights of PPF in zebrafish reproductive system and highlights for further investigations on its potential risks in aquatic environment.
Collapse
Affiliation(s)
- Kannan Maharajan
- DRDO-BU Center for Life Sciences, Bharathiar University Campus, Coimbatore 641046, India; Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore 641046, India; Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan 250103, China
| | - Sellamani Muthulakshmi
- DRDO-BU Center for Life Sciences, Bharathiar University Campus, Coimbatore 641046, India
| | - Chinnannan Karthik
- DRDO-BU Center for Life Sciences, Bharathiar University Campus, Coimbatore 641046, India
| | - Bojan Nataraj
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore 641046, India
| | - Kanthan Nambirajan
- Division of Ecotoxicology, Sálim Ali Centre for Ornithology and Natural History, Coimbatore 641108, India
| | - Devan Hemalatha
- Department of Zoology, PSG College of Arts & Science, Coimbatore 641014, India
| | - Swaminathan Jiji
- DRDO-BU Center for Life Sciences, Bharathiar University Campus, Coimbatore 641046, India
| | - Krishna Kadirvelu
- DRDO-BU Center for Life Sciences, Bharathiar University Campus, Coimbatore 641046, India
| | - Ke-Chun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan 250103, China
| | - Mathan Ramesh
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore 641046, India.
| |
Collapse
|
29
|
Doshi M, Bosak A, Neal CJ, Isis N, Kumar U, Jeyaranjan A, Sakthivel TS, Singh S, Willenberg A, Hines RB, Seal S, Willenberg BJ. Exposure to nanoceria impacts larval survival, life history traits and fecundity of Aedes aegypti. PLoS Negl Trop Dis 2020; 14:e0008654. [PMID: 32976503 PMCID: PMC7540862 DOI: 10.1371/journal.pntd.0008654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 10/07/2020] [Accepted: 07/28/2020] [Indexed: 01/02/2023] Open
Abstract
Effectively controlling vector mosquito populations while avoiding the development of resistance remains a prevalent and increasing obstacle to integrated vector management. Although, metallic nanoparticles have previously shown promise in controlling larval populations via mechanisms which are less likely to spur resistance, the impacts of such particles on life history traits and fecundity of mosquitoes are understudied. Herein, we investigate the chemically well-defined cerium oxide nanoparticles (CNPs) and silver-doped nanoceria (AgCNPs) for larvicidal potential and effects on life history traits and fecundity of Aedes (Ae.) aegypti mosquitoes. When 3rd instar larvae were exposed to nanoceria in absence of larval food, the mortality count disclosed significant activity of AgCNPs over CNPs (57.8±3.68% and 17.2±2.81% lethality, respectively) and a comparable activity to Ag+ controls (62.8±3.60% lethality). The surviving larvae showed altered life history traits (e.g., reduced egg hatch proportion and varied sex ratios), indicating activities of these nanoceria beyond just that of a larvicide. In a separate set of experiments, impacts on oocyte growth and egg generation resulting from nanoceria-laced blood meals were studied using confocal fluorescence microscopy revealing oocytes growth-arrest at 16-24h after feeding with AgCNP-blood meals in some mosquitoes, thereby significantly reducing average egg clutch. AgCNPs caused ~60% mortality in 3rd instar larvae when larval food was absent, while CNPs yielded only ~20% mortality which contrasts with a previous report on green-synthesized nanoceria and highlights the level of detail required to accurately report and interpret such studies. Additionally, AgCNPs are estimated to contain much less silver (0.22 parts per billion, ppb) than the amount of Ag+ needed to achieve comparable larvicidal activity (2.7 parts per million, ppm), potentially making these nanoceria ecofriendly. Finally, this work is the first study to demonstrate the until-now-unappreciated impacts of nanoceria on life history traits and interference with mosquito egg development.
Collapse
Affiliation(s)
- Mona Doshi
- University of Central Florida College of Medicine, Department of Internal Medicine, Orlando, Florida, United States of America
| | - Alexander Bosak
- University of Central Florida College of Medicine, Department of Internal Medicine, Orlando, Florida, United States of America
| | - Craig J. Neal
- University of Central Florida College of Engineering, Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, Orlando, Florida, United States of America
| | - Nour Isis
- University of Central Florida College of Medicine, Department of Internal Medicine, Orlando, Florida, United States of America
| | - Udit Kumar
- University of Central Florida College of Engineering, Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, Orlando, Florida, United States of America
| | - Aadithya Jeyaranjan
- University of Central Florida College of Engineering, Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, Orlando, Florida, United States of America
| | - Tamil Selvan Sakthivel
- University of Central Florida College of Engineering, Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, Orlando, Florida, United States of America
| | - Sushant Singh
- University of Central Florida College of Engineering, Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, Orlando, Florida, United States of America
| | - Alicia Willenberg
- University of Central Florida College of Medicine, Department of Internal Medicine, Orlando, Florida, United States of America
| | - Robert B. Hines
- University of Central Florida College of Medicine, Department of Population Health Sciences, Orlando, Florida, United States of America
| | - Sudipta Seal
- University of Central Florida College of Engineering, Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, Orlando, Florida, United States of America
- University of Central Florida College of Medicine, NanoScience Technology Center, Orlando, Florida, United States of America
| | - Bradley J. Willenberg
- University of Central Florida College of Medicine, Department of Internal Medicine, Orlando, Florida, United States of America
| |
Collapse
|
30
|
Rang J, He H, Yuan S, Tang J, Liu Z, Xia Z, Khan TA, Hu S, Yu Z, Hu Y, Sun Y, Huang W, Ding X, Xia L. Deciphering the Metabolic Pathway Difference Between Saccharopolyspora pogona and Saccharopolyspora spinosa by Comparative Proteomics and Metabonomics. Front Microbiol 2020; 11:396. [PMID: 32256469 PMCID: PMC7093602 DOI: 10.3389/fmicb.2020.00396] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 02/26/2020] [Indexed: 12/12/2022] Open
Abstract
Butenyl-spinosyn, a secondary metabolite produced by Saccharopolyspora pogona, exhibits strong insecticidal activity than spinosyn. However, the low synthesis capacity and unknown metabolic characteristics of butenyl-spinosyn in wild-type S. pogona limit its broad application and metabolic engineering. Here, we showed that S. pogona exhibited increased glucose consumption ability and growth rate compared with S. spinosa, but the production of butenyl-spinosyn was much lower than that of spinosyn. To further elucidate the metabolic mechanism of these different phenotypes, we performed a comparative proteomic and metabolomic study on S. pogona and S. spinosa to identify the change in the abundance levels of proteins and metabolites. We found that the abundance of most proteins and metabolites associated with glucose transport, fatty acid metabolism, tricarboxylic acid cycle, amino acid metabolism, energy metabolism, purine and pyrimidine metabolism, and target product biosynthesis in S. pogona was higher than that in S. spinosa. However, the overall abundance of proteins involved in butenyl-spinosyn biosynthesis was much lower than that of the high-abundance protein chaperonin GroEL, such as the enzymes related to rhamnose synthesis. We speculated that these protein and metabolite abundance changes may be directly responsible for the above phenotypic changes in S. pogona and S. spinosa, especially affecting butenyl-spinosyn biosynthesis. Further studies revealed that the over-expression of the rhamnose synthetic genes and methionine adenosyltransferase gene could effectively improve the production of butenyl-spinosyn by 2.69- and 3.03-fold, respectively, confirming the reliability of this conjecture. This work presents the first comparative proteomics and metabolomics study of S. pogona and S. spinosa, providing new insights into the novel links of phenotypic change and metabolic difference between two strains. The result will be valuable in designing strategies to promote the biosynthesis of butenyl-spinosyn by metabolic engineering.
Collapse
Affiliation(s)
- Jie Rang
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Haocheng He
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Shuangqin Yuan
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Jianli Tang
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Zhudong Liu
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Ziyuan Xia
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Tahir Ali Khan
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Shengbiao Hu
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Ziquan Yu
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Yibo Hu
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Yunjun Sun
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Weitao Huang
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Xuezhi Ding
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | - Liqiu Xia
- Hunan Provincial Key Laboratory for Microbial Molecular Biology, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| |
Collapse
|
31
|
Cuvillier-Hot V, Lenoir A. Invertebrates facing environmental contamination by endocrine disruptors: Novel evidences and recent insights. Mol Cell Endocrinol 2020; 504:110712. [PMID: 31962147 DOI: 10.1016/j.mce.2020.110712] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 02/08/2023]
Abstract
The crisis of biodiversity we currently experience raises the question of the impact of anthropogenic chemicals on wild life health. Endocrine disruptors are notably incriminated because of their possible effects on development and reproduction, including at very low doses. As commonly recorded in the field, the burden they impose on wild species also concerns invertebrates, with possible specificities linked with the specific physiology of these animals. A better understanding of chemically-mediated endocrine disruption in these species has clearly gained from knowledge accumulated on vertebrate models. But the molecular pathways specific to invertebrates also need to be reckoned, which implies dedicated research efforts to decipher their basic functioning in order to be able to assess its possible disruption. The recent rising of omics technologies opens the way to an intensification of these efforts on both aspects, even in species almost uninvestigated so far.
Collapse
Affiliation(s)
| | - Alain Lenoir
- IRBI, Institut de Recherche sur la Biologie de l'Insecte, UMR CNRS, Faculté des Sciences, Parc de Grandmont, Université de Tours, Tours, France
| |
Collapse
|
32
|
Hu XL, Tang YY, Kwok ML, Chan KM, Chu KH. Impact of juvenile hormone analogue insecticides on the water flea Moina macrocopa: Growth, reproduction and transgenerational effect. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 220:105402. [PMID: 31927065 DOI: 10.1016/j.aquatox.2020.105402] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/20/2019] [Accepted: 01/01/2020] [Indexed: 06/10/2023]
Abstract
The increasing quantities of insecticides that leach into water bodies severely affect the health of the aquatic environment. Juvenile hormone analogue (JHA) insecticides are endocrine disrupters that interfere with hormonal activity in insects by mimicking juvenile hormones (JHs). Because the structure and functions of methyl farnesoate in crustaceans are similar to the insect JHs, exogenous JHA insecticides may cause adverse effects on the growth and reproduction in crustaceans similar to those observed in insects. This study examined the toxic effects of two JHA insecticides, methoprene and fenoxycarb, on the water flea Moina macrocopa. The 24-h and 48-h LC50 values for fenoxycarb and methoprene were 0.53 and 0.32 mg/L and 0.70 and 0.54 mg/L, respectively. Chronic exposure to the two JHAs caused a series of toxic effects in M. macrocopa, including shortening of life expectancy, repression of body growth, reduction in fecundity, and disturbed the expression of genes involved in the JH signaling pathway, in cuticle development, and in the carbohydrate, amino acid, and ATP metabolic processes. Moreover, JHA exposure impaired the growth and reproduction of the offspring of M. macrocopa exposed to JHAs, even when the neonates were not exposed to the chemicals. In addition, changes in the expression of genes related to histone methylation indicate that epigenetic changes may promote transgenerational impairment in M. macrocopa. These results demonstrate the toxic effects of fenoxycarb and methoprene on non-target aquatic organisms. The damages done by these JHA insecticides to the aquatic environment is worthy of our attention and further studies.
Collapse
Affiliation(s)
- Xue Lei Hu
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Yuan Yuan Tang
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Man Long Kwok
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - King Ming Chan
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Ka Hou Chu
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
| |
Collapse
|
33
|
Tall JA, Gatton ML. Flooding and Arboviral Disease: Predicting Ross River Virus Disease Outbreaks Across Inland Regions of South-Eastern Australia. JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:241-251. [PMID: 31310648 DOI: 10.1093/jme/tjz120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Indexed: 06/10/2023]
Abstract
Flood frequency is expected to increase across the globe with climate change. Understanding the relationship between flooding and arboviral disease can reduce disease risk and associated costs. South-eastern Australia is dominated by the flood-prone Murray-Darling River system where the incidence of Australia's most common arboviral disease, Ross River virus (RRV), is high. This study aimed to determine the relationship between riverine flooding and RRV disease outbreaks in inland south-eastern Australia, specifically New South Wales (NSW). Each study month from 1991 to 2013, for each of 37 local government areas (LGAs) was assigned 'outbreak/non-outbreak' status based on long-term trimmed-average age-standardized RRV notification rates and 'flood/non-flood' status based on riverine overflow. LGAs were grouped into eight climate zones with the relationship between flood and RRV outbreak modeled using generalized estimating equations. Modeling adjusted for rainfall in the previous 1-3 mo. Spring-summer flooding increased the odds of summer RRV outbreaks in three climate zones before and after adjusting for rainfall 1, 2, and 3 mo prior to the outbreak. Flooding at any time of the year was not predictive of RRV outbreaks in the remaining five climate zones. Predicting RRV disease outbreaks with flood events can assist with more targeted mosquito spraying programs, thereby reducing disease transmission and mosquito resistance.
Collapse
Affiliation(s)
- Julie A Tall
- School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, O Block, Kelvin Grove, Queensland, Australia
| | - Michelle L Gatton
- School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, O Block, Kelvin Grove, Queensland, Australia
| |
Collapse
|
34
|
Allgeier S, Friedrich A, Brühl CA. Mosquito control based on Bacillus thuringiensis israelensis (Bti) interrupts artificial wetland food chains. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:1173-1184. [PMID: 31412513 DOI: 10.1016/j.scitotenv.2019.05.358] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/23/2019] [Accepted: 05/23/2019] [Indexed: 06/10/2023]
Abstract
The biocide Bacillus thuringiensis israelensis (Bti) has become the most commonly used larvicide to control mosquitoes in seasonal wetlands. Although Bti is considered non-toxic to most aquatic organisms, the non-biting chironomids show high susceptibilities towards Bti. As chironomids are a key element in wetland food webs, major declines in their abundance could lead to indirect effects that may be passed through aquatic and terrestrial food chains. We conducted two mesocosm experiments to address this hypothesis by assessing direct and indirect effects of Bti-modified availability of macroinvertebrate and zooplankton food resources on the predatory larvae of palmate and smooth newts (Urodelans: Lissotriton helveticus, Lissotriton vulgaris). We examined newt survival rates and dietary composition by means of stable isotope (δ15N and δ13C) analysis in the presence of Bti treatment and a predator (Odonata: Aeshna cyanea). We assessed palmate newts' body size at and time to metamorphosis while developing in Bti treated mesocosms. Chironomid larvae were the most severely affected aquatic invertebrates in all Bti treated food chains and experienced abundance reductions by 50 to 87%. Moreover, stable isotope analysis revealed that chironomids were preferred over other invertebrates and comprised the major part in newts' diet (56%) regardless of their availability. The dragonfly A. cyanea decreased survival of newt larvae by 27% in Bti treated mesocosms showing affected chironomid abundances. Increasing intraguild predation is most likely favored by the Bti-induced reduction of alternative prey such as chironomid larvae. The decreased food availability after Bti treatment led to slightly smaller L. helveticus metamorphs while their developmental time was not affected. Our findings highlight the crucial role of chironomids in the food webs of freshwater ecosystems. We are also emphasizing the importance of reconsidering human-induced indirect effects of mosquito control on valuable wetland ecosystems particularly in the context of worldwide amphibian and insect declines.
Collapse
Affiliation(s)
- Stefanie Allgeier
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstraße 7, 76829 Landau, Germany.
| | - Anna Friedrich
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstraße 7, 76829 Landau, Germany
| | - Carsten A Brühl
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstraße 7, 76829 Landau, Germany
| |
Collapse
|
35
|
Hu XL, Niu JJ, Meng Q, Chai YH, Chu KH, Chan KM. Effects of two juvenile hormone analogue insecticides, fenoxycarb and methoprene, on Neocaridina davidi. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:89-99. [PMID: 31302406 DOI: 10.1016/j.envpol.2019.06.120] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/28/2019] [Accepted: 06/28/2019] [Indexed: 06/10/2023]
Abstract
Juvenile hormone analogue (JHA) insecticides are endocrine disrupters that interfere with hormonal action in insects by mimicking their juvenile hormones (JH). As the structure and functions of methyl farnesoate in crustaceans are similar to those of JH in insects, exogenous JHA insecticides could have adverse effects on the development and reproduction of crustaceans. This study examined the toxic effects of two JHA insecticides, fenoxycarb and methoprene, on a freshwater shrimp model of cherry shrimp, Neocaridina davidi. Both insecticides had detrimental effects on cherry shrimp, but fenoxycarb was more toxic than methoprene. Chronic exposure to these insecticides reduced the shrimp's body length and molting frequency. Based on transcriptome annotations for N. davidi, we identified important gene homologues that were active in both insect JH biosynthetic and degradative pathways as well as JH and ecdysteroid signaling pathways. Chronic treatments with JHAs had significant effects on these genes in N. davidi. Our transcriptomic analysis showed that genes involved in the pathways related to cuticle development, serine protease activity, and carbohydrate, peptide and lipid metabolic processes were differentially expressed in shrimp exposed to JHAs. These results demonstrate the toxicity of fenoxycarb and methoprene to freshwater crustaceans and indicate the need to monitor the use of JHA insecticides.
Collapse
Affiliation(s)
- Xue Lei Hu
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Jiao Jiao Niu
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Qi Meng
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Yuet Hung Chai
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Ka Hou Chu
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - King Ming Chan
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
| |
Collapse
|
36
|
Dieng H, The CC, Satho T, Miake F, Wydiamala E, Kassim NFA, Hashim NA, Morales Vargas RE, Morales NP. The electronic song "Scary Monsters and Nice Sprites" reduces host attack and mating success in the dengue vector Aedes aegypti. Acta Trop 2019; 194:93-99. [PMID: 30922800 DOI: 10.1016/j.actatropica.2019.03.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 03/24/2019] [Accepted: 03/24/2019] [Indexed: 10/27/2022]
Abstract
Sound and its reception are crucial for reproduction, survival, and population maintenance of many animals. In insects, low-frequency vibrations facilitate sexual interactions, whereas noise disrupts the perception of signals from conspecifics and hosts. Despite evidence that mosquitoes respond to sound frequencies beyond fundamental ranges, including songs, and that males and females need to struggle to harmonize their flight tones, the behavioral impacts of music as control targets remain unexplored. In this study, we examined the effects of electronic music (Scary Monsters and Nice Sprites by Skrillex) on foraging, host attack, and sexual activities of the dengue vector Aedes aegypti. Adults were presented with two sound environments (music-off or music-on). Discrepancies in visitation, blood feeding, and copulation patterns were compared between environments with and without music. Ae. aegypti females maintained in the music-off environment initiated host visits earlier than those in the music-on environment. They visited the host significantly less often in the music-on than the music-off condition. Females exposed to music attacked hosts much later than their non-exposed peers. The occurrence of blood feeding activity was lower when music was being played. Adults exposed to music copulated far less often than their counterparts kept in an environment where there was no music. In addition to providing insight into the auditory sensitivity of Ae. aegypti to sound, our results indicated the vulnerability of its key vectorial capacity traits to electronic music. The observation that such music can delay host attack, reduce blood feeding, and disrupt mating provides new avenues for the development of music-based personal protective and control measures against Aedes-borne diseases.
Collapse
|
37
|
Pavela R, Maggi F, Iannarelli R, Benelli G. Plant extracts for developing mosquito larvicides: From laboratory to the field, with insights on the modes of action. Acta Trop 2019; 193:236-271. [PMID: 30711422 DOI: 10.1016/j.actatropica.2019.01.019] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 01/27/2023]
Abstract
In the last decades, major research efforts have been done to investigate the insecticidal activity of plant-based products against mosquitoes. This is a modern and timely challenge in parasitology, aimed to reduce the frequent overuse of synthetic pesticides boosting resistance development in mosquitoes and causing serious threats to human health and environment. This review covers the huge amount of literature available on plant extracts tested as mosquito larvicides, particularly aqueous and alcoholic ones, due to their easy formulation in water without using surfactants. We analysed results obtained on more than 400 plant species, outlining that 29 of them have outstanding larvicidal activity (i.e., LC50 values below 10 ppm) against major vectors belonging to the genera Anopheles, Aedes and Culex, among others. Furthermore, synergistic and antagonistic effects between plant extracts and conventional pesticides, as well as among selected plant extracts are discussed. The efficacy of pure compounds isolated from the most effective plant extracts and - when available - their mechanism of action, as well as the impact on non-target species, is also covered. These belong to the following class of secondary metabolites: alkaloids, alkamides, sesquiterpenes, triterpenes, sterols, flavonoids, coumarins, anthraquinones, xanthones, acetogenonins and aliphatics. Their mode of action on mosquito larvae ranges from neurotoxic effects to inhibition of detoxificant enzymes and larval development and/or midugut damages. In the final section, current drawbacks as well as key challenges for future research, including technologies to synergize efficacy and improve stability - thus field performances - of the selected plant extracts, are outlined. Unfortunately, despite the huge amount of laboratory evidences about their efficacy, only a limited number of studies was aimed to validate their efficacy in the field, nor the epidemiological impact potentially arising from these vector control operations has been assessed. This strongly limits the development of commercial mosquito larvicides of botanical origin, at variance with plant-borne products developed in the latest decades to kill or repel other key arthropod species of medical and veterinary importance (e.g., ticks and lice), as well as mosquito adults. Further research on these issues is urgently needed.
Collapse
Affiliation(s)
- Roman Pavela
- Crop Research Institute, Drnovska 507, 161 06, Prague 6, Ruzyne, Czech Republic
| | - Filippo Maggi
- School of Pharmacy, University of Camerino, via Sant'Agostino, 62032 Camerino, Italy.
| | - Romilde Iannarelli
- School of Pharmacy, University of Camerino, via Sant'Agostino, 62032 Camerino, Italy
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy.
| |
Collapse
|
38
|
Michaelakis A, Papachristos DP, Rumbos CI, Benelli G, Athanassiou CG. Larvicidal activity of spinosad and its impact on oviposition preferences of the West Nile vector Culex pipiens biotype molestus - A comparison with a chitin synthesis inhibitor. Parasitol Int 2019; 74:101917. [PMID: 31004804 DOI: 10.1016/j.parint.2019.04.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 04/13/2019] [Accepted: 04/17/2019] [Indexed: 12/13/2022]
Abstract
In the present study, the larvicidal activity of ageing aqueous suspensions of spinosad against larvae of Culex pipiens biotype molestus, as well as their effect on the oviposition preferences of adult gravid females were evaluated in laboratory bioassays. Spinosad was applied at its label dose and the aqueous stock suspensions were stored for various ageing intervals up to 38 days. Untreated distilled water and diflubenzuron served as negative and positive control, respectively. Stock suspensions were taken after 0, 2, 6, 8, 16, 30 and 38 days of storage for diflubenzuron and after 0, 2, 6, 8, 20 and 27 days for spinosad, and were used for the bioassays. Furthermore, the effect of spinosad on the oviposition response of Cx. p. biotype molestus gravid females was investigated in two-choice oviposition preference bioassays. Spinosad was evaluated at half of its label dose and at its label dose, whereas diflubenzuron and distilled water served as positive and negative control, respectively. Results showed that both insecticides were found highly effective for the control of Cx. p. biotype molestus larvae, for ageing intervals up to 27 and 38 days for spinosad and diflubenzuron, respectively. Spinosad acted immediately after the preparation of the insecticidal solution (LT50 = 1.5 h), whereas for aged samples, LT50 values increased with the increase of the ageing interval (LT50 = 5 days for the 27 days old sample). For diflubenzuron, ageing time increased its insecticidal activity, as for aged diflubenzuron-treated solutions, lower LT50 values were achieved. In the oviposition preference bioassays, significantly fewer egg rafts were laid in water treated with spinosad at its label dose compared to control. However, this was not the case for water treated with spinosad at half of its label dose. Oviposition Activity Index (OAI) values were always comprised between -0.3 and 0.3, showing no relevant oviposition deterrence or attraction. The results of the present study contribute to our understanding of the effect of ageing on insecticidal solutions widely used in urban areas to control Cx. p. biotype molestus. Although an important vector of high public health importance, Cx. p. biotype molestus has been scarcely studied as target of environmentally and toxicologically reduced risk insecticides, such as spinosad.
Collapse
Affiliation(s)
- Antonios Michaelakis
- Department of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 S. Delta Str. 14561 Kifissia, Athens, Greece
| | - Dimitrios P Papachristos
- Department of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 S. Delta Str. 14561 Kifissia, Athens, Greece
| | - Christos I Rumbos
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Phytokou str., 38446, N. Ionia, Magnesia, Greece
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Christos G Athanassiou
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Phytokou str., 38446, N. Ionia, Magnesia, Greece.
| |
Collapse
|
39
|
Rubio NR, Fish KD, Trimmer BA, Kaplan DL. In Vitro Insect Muscle for Tissue Engineering Applications. ACS Biomater Sci Eng 2019; 5:1071-1082. [PMID: 33405797 DOI: 10.1021/acsbiomaterials.8b01261] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Tissue engineering is primarily associated with medical disciplines, and research has thus focused on mammalian cells. For applications where clinical relevance is not a constraint, it is useful to evaluate the potential of alternative cell sources to form tissues in vitro. Specifically, skeletal muscle tissue engineering for bioactuation and cultured foods could benefit from the incorporation of invertebrate cells because of their less stringent growth requirements and other versatile features. Here, we used a Drosophila muscle cell line to demonstrate the benefits of insect cells relative to those derived from vertebrates. The cells were adapted to serum-free media, transitioned between adherent and suspension cultures, and manipulated with hormones. Furthermore, we analyzed edible scaffolds to support cell adhesion and assayed cellular protein and minerals to evaluate nutrition potential. The insect muscle cells exhibited advantageous growth patterns and hold unique functionality for tissue engineering applications beyond the medical realm.
Collapse
Affiliation(s)
- Natalie R Rubio
- Department of Biomedical Engineering, Tufts University, Science & Technology Center, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Kyle D Fish
- Department of Biomedical Engineering, Tufts University, Science & Technology Center, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Barry A Trimmer
- Department of Biology, Tufts University, 200 Boston Avenue #4700, Medford, Massachusetts 02155, United States
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Science & Technology Center, 4 Colby Street, Medford, Massachusetts 02155, United States
| |
Collapse
|
40
|
Vajravijayan S, Pletnev S, Pletnev VZ, Nandhagopal N, Gunasekaran K. Crystal structure of a novel Kunitz type inhibitor, alocasin with anti-Aedes aegypti activity targeting midgut proteases. PEST MANAGEMENT SCIENCE 2018; 74:2761-2772. [PMID: 29737039 DOI: 10.1002/ps.5063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/13/2018] [Accepted: 04/30/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND The pesticidal properties of many Kunitz-type inhibitors have been reported previously; however, the mechanism of action is not well established. In this study, the activity of alocasin against Aedes aegypti is demonstrated and the structure-activity relationship of this Kunitz-type inhibitor is explained through X-ray structure analyses. RESULTS Alocasin was purified from mature rhizomes of Alocasia as a single polypeptide chain of ∼ 20 kDa. The structure at 2.5 Å resolution revealed a Kunitz-type fold, but variation in the loop regions makes this structure unique; one loop with a single disulfide bridge is replaced by a long loop with two bridges. Alignment of homologous sequences revealed that this long loop contains a conserved Arg residue and modeling studies showed interaction with the catalytic Ser residue of trypsin-like enzymes. The anti-Aedes aegypti activity of alocasin is examined and discussed in detail. The in vitro activity of alocasin against midgut proteases of Aedes aegypti showed profound inhibition. Further, morphological changes in larvae upon treatment with alocasin revealed its activity against Ae. aegypti. Docking studies of alocasin with trypsin (5G1), a midgut protease involved in the development cycle and blood meal digestion, illustrated its insecticidal activity. CONCLUSION The three-dimensional structure of alocasin was determined and its structure-function relationship established for its anti Ae. aegypti activity. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Senthilvadivel Vajravijayan
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai, India
| | - Sergei Pletnev
- Macromolecular Crystallography Laboratory, National Cancer Institute, and Basic Science Program, Leidos Biomedical Research Inc., Argonne, IL, USA
| | - Vladimir Z Pletnev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Narayanasamy Nandhagopal
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai, India
| | - Krishnasamy Gunasekaran
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai, India
| |
Collapse
|
41
|
Maharajan K, Muthulakshmi S, Nataraj B, Ramesh M, Kadirvelu K. Toxicity assessment of pyriproxyfen in vertebrate model zebrafish embryos (Danio rerio): A multi biomarker study. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 196:132-145. [PMID: 29407799 DOI: 10.1016/j.aquatox.2018.01.010] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/10/2018] [Accepted: 01/11/2018] [Indexed: 06/07/2023]
Abstract
Pyriproxyfen (2-[1-methyl-2-(4-phenoxyphenoxy) ethoxy] pyridine) (PPF), a pyridine-based pesticide widely used to control agricultural insect pests and mosquitoes in drinking water sources. However, its ecotoxicological data is limited in aquatic vertebrates particularly in fish. Hence, the present study aimed to evaluate the adverse effect of PPF in zebrafish embryo development (Danio rerio). In order to investigate the impact of PPF, embryos were exposed to 0.16, 0.33 and 1.66 μg/mL (0.52, 1.04 and 5.2 μM, respectively) for 96 hpf and various biomarker indices such as developmental toxicity (edema formation, hyperemia, heart size and scoliosis), oxidative stress (reactive oxygen species (ROS), lipid peroxidation (LPO) and nitric oxide (NO)), antioxidant responses (superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), glutathione peroxidase (GPx) and reduced glutathione (GSH)), biochemical (lactate dehydrogenase (LDH) and acid phosphatase (AP)), neurotoxicity (acetylcholinesterase (AChE)), genotoxicity (apoptosis and DNA damage) and histopathological changes were determined. The results showed that severe developmental deformities and changes in heart rate were observed in embryos treated with highest (1.66 μg/mL) concentration than the control (P < 0.05). Heart size measurement showed that, significant change in heart size (P < 0.01) was observed in embryos of 96 hpf only at 1.66 μg/mL PPF exposure. The oxidative stress was apparent at highest test concentration (1.66 μg/mL) as reflected by the elevated ROS, LPO and NO and changes in antioxidant enzyme activities including SOD, CAT, GST and GPx (P < 0.05). Besides, GSH level and AChE activity were significantly lowered in 1.66 μg/mL PPF exposed group than the control. After 96 hpf of PPF exposure, no significant changes were found in AP activity whereas, a biphasic response was observed in the LDH activity. There was no genotoxic effect in embryos exposed to PPF at 0.16 and 0.33 μg/mL, while significant (P < 0.05) DNA damage and apoptosis were found in 1.66 μg/mL treated group. Histopathological analysis revealed that exposure to PPF at 1.66 μg/mL resulted in thinning of heart muscles, pericardial edema and hyperemia while there was no obvious changes were observed in other treatment groups. Hence, the results of the present study demonstrate that PPF could cause adverse effect on early developmental stages of zebrafish at higher concentration.
Collapse
Affiliation(s)
- Kannan Maharajan
- DRDO-BU Center for Life Sciences, Bharathiar University Campus, Coimbatore, India
| | | | - Bojan Nataraj
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore, India
| | - Mathan Ramesh
- DRDO-BU Center for Life Sciences, Bharathiar University Campus, Coimbatore, India; Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore, India.
| | - Krishna Kadirvelu
- DRDO-BU Center for Life Sciences, Bharathiar University Campus, Coimbatore, India
| |
Collapse
|
42
|
Zhang L, Zhao G, Hu X, Liu J, Li M, Batool K, Chen M, Wang J, Xu J, Huang T, Pan X, Xu L, Yu XQ, Guan X. Cry11Aa Interacts with the ATP-Binding Protein from Culex quinquefasciatus To Improve the Toxicity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10884-10890. [PMID: 29215274 DOI: 10.1021/acs.jafc.7b04427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cry11Aa displays high toxicity to the larvae of several mosquito species, including Aedes, Culex, and Anopheles. To study its binding characterization against Culex quinquefasciatus, Cry11Aa was purified and western blot results showed that Cry11Aa could bind successfully to the brush border membrane vesicles. To identify Cry11Aa-binding proteins in C. quinquefasciatus, a biotin-based protein pull-down experiment was performed and seven Cry11Aa-binding proteins were isolated from the midgut of C. quinquefasciatus larvae. Analysis of liquid chromatography-tandem mass spectrometry showed that one of the Cry11Aa-binding proteins is the ATP-binding domain 1 family member B. To investigate its binding property and effect on the toxicity of Cry11Aa, western blot, far-western blot, enzyme-linked immunosorbent assay, and bioassays of Cry11Aa in the presence and absence of the recombinant ATP-binding protein were performed. Our results showed that the ATP-binding protein interacted with Cry11Aa and increased the toxicity of Cry11Aa against C. quinquefasciatus. Our study suggests that midgut proteins other than the toxin receptors may modulate the toxicity of Cry toxins against mosquitoes.
Collapse
Affiliation(s)
- Lingling Zhang
- Division of Cell Biology and Biophysics, University of Missouri-Kansas City , Kansas City, Missouri 64110, United States
| | | | | | | | | | | | | | | | | | | | | | | | - Xiao-Qiang Yu
- Division of Cell Biology and Biophysics, University of Missouri-Kansas City , Kansas City, Missouri 64110, United States
| | | |
Collapse
|