1
|
Talaga S, Compin A, Azémar F, Leroy C, Dejean A. Urbanization and Water Containers Influence the Mosquito Community with Consequences for Aedes aegypti. NEOTROPICAL ENTOMOLOGY 2024; 53:162-170. [PMID: 37882954 DOI: 10.1007/s13744-023-01091-9] [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: 12/07/2022] [Accepted: 10/03/2023] [Indexed: 10/27/2023]
Abstract
We aimed to determine how the degree of urbanization in a Neotropical city influences Aedes aegypti (L.), a pantropical vector of urban yellow fever, dengue, Zika and Chikungunia, via other mosquito species, whether they are competitors or predators, native to the area or invasive. We conducted experiments twice a month during one year in the city of Kourou, French Guiana, on three sites characterized by increasing percentages of imperviousness (i.e., 0.65%, 33.80% and 86.60%). These sites were located in a ≈5 ha forest fragment, a residential area with gardens, and in the older part of the city, respectively, and correspond to slightly, moderately and highly urbanized sites. There, we monitored twice a month during one year a total of 108 mosquito communities inhabiting four types of containers (i.e., a tank bromeliad, dry stumps of bamboo, ovitraps and car tires) installed in a random block design. In the tanks of the bromeliad, likely due to the acidity of the water, the immatures of native mosquito species prevailed, particularly Wyeomyia pertinans (Williston) in the slightly urbanized site. The general pattern was very similar in the three other types of containers where Limatus durhamii Théobald dominated in the slightly urbanized site, so that the abundance of Ae. aegypti immatures was low compared to those of native species. Yet, Ae. aegypti strongly dominated in the two more urbanized sites. These findings open up perspectives for vector management, including the conservation and/or the augmentation of natural enemies through modifications to landscape features.
Collapse
Affiliation(s)
- Stanislas Talaga
- Vector Control and Adaptation Unit, Vectopôle Amazonien Emile Abonnenc, Institut Pasteur de la Guyane, Cayenne, France
| | - Arthur Compin
- Laboratoire écologie fonctionnelle et environnement, Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse cedex 9, France
| | - Frédéric Azémar
- Laboratoire écologie fonctionnelle et environnement, Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse cedex 9, France
| | - Céline Leroy
- AMAP, Univ. Montpellier, CIRAD, CNRS, INRAE, IRD, Montpellier, France
| | - Alain Dejean
- Laboratoire écologie fonctionnelle et environnement, Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse cedex 9, France.
- UMR EcoFoGAgroParisTechCirad, CNRS, INRA, Université des Antilles, Université de Guyane, Kourou, France.
| |
Collapse
|
2
|
Cerqueira APM, Santos MDC, dos Santos Júnior MC, Botura MB. Molecular targets for the development of new acaricides against Rhipicephalus microplus: a review. Parasitology 2022; 149:1019-1026. [PMID: 35514112 PMCID: PMC11010478 DOI: 10.1017/s0031182022000506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 11/06/2022]
Abstract
The cattle tick Rhipicephalus microplus is an ectoparasite with high economic importance to bovine culture, mainly in tropical and subtropical regions. The resistance of the tick from the commercial acaricides has hindered its control, thus motivating the search for new strategies. The purpose of this study was to perform a critical review about the main molecular targets of R. microplus that are useful for the discovery of new acaricides. Bibliographic search was conducted in the databases PubMed, ScienceDirect and CAB Direct, using the following descriptors: ‘Rhipicephalus microplus’, ‘Boophilus microplus’, ‘molecular targets’ and ‘action’, published between 2010 and 2021. Out of the 212 publications identified, 17 articles were selected for study inclusion. This review described 14 molecular targets and among these 4 are targets from commercial acaricides. Most of them are enzymes to catalyse important reactions to tick survival, related to energetic metabolism, mechanisms of biotransformation and neurotransmission. The data will be helpful in the development of new more effective and selective acaricides.
Collapse
Affiliation(s)
- Amanda Ponce Morais Cerqueira
- Departamento de Biologia, Programa de Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil
| | - Matheus da Cunha Santos
- Departamento de Saúde, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil
| | | | - Mariana Borges Botura
- Departamento de Saúde, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil
| |
Collapse
|
3
|
Chen ME, Tsai MH, Huang HT, Tsai CC, Chen MJ, Yang DS, Yang TZ, Wang J, Huang RN. Transcriptome profiling reveals the developmental regulation of NaCl-treated Forcipomyia taiwana eggs. BMC Genomics 2021; 22:792. [PMID: 34732124 PMCID: PMC8567638 DOI: 10.1186/s12864-021-08096-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 10/14/2021] [Indexed: 01/22/2023] Open
Abstract
Background The biting midge, Forcipomyia taiwana, is one of the most annoying blood-sucking pests in Taiwan. Current chemical control methods only target the adult, not the immature stages (egg to pupa), of F. taiwana. Discovering new or alternative tactics to enhance or replace existing methods are urgently needed to improve the effectiveness of F. taiwana control. The egg is the least understood life stage in this pest species but may offer a novel point of control as addition of NaCl to the egg environment inhibits development. Thus, the objective of this study was to use RNA profiling to better understand the developmental differences between wild-type melanized (black) and NaCl-induced un-melanized (pink), infertile F. taiwana eggs. Results After de novo assembly with Trinity, 87,415 non-redundant transcripts (Ft-nr) with an N50 of 1099 were obtained. Of these, 26,247 (30%) transcripts were predicted to have long open reading frames (ORFs, defined here as ≥300 nt) and 15,270 (17.5%) transcripts have at least one predicted functional domain. A comparison between two biological replicates each of black and pink egg samples, although limited in sample size, revealed 5898 differentially expressed genes (DEGs; 40.9% of the transcripts with long ORFs) with ≥2-fold difference. Of these, 2030 were annotated to a Gene Ontology biological process and along with gene expression patterns can be separated into 5 clusters. KEGG pathway analysis revealed that 1589 transcripts could be assigned to 18 significantly enriched pathways in 2 main categories (metabolism and environmental information processing). As expected, most (88.32%) of these DEGs were down-regulated in the pink eggs. Surprisingly, the majority of genes associated with the pigmentation GO term were up-regulated in the pink egg samples. However, the two key terminal genes of the melanin synthesis pathway, laccase2 and DCE/yellow, were significantly down-regulated, and further verified by qRT-PCR. Conclusion We have assembled and annotated the first egg transcriptome for F. taiwana, a biting midge. Our results suggest that down-regulation of the laccase2 and DCE/yellow genes might be the mechanism responsible for the NaCl-induced inhibition of melanization of F. taiwana eggs. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-08096-x.
Collapse
Affiliation(s)
- Mu-En Chen
- Department of Entomology and Research Center for Plant Medicine, College of Bioresources and Agriculture, National Taiwan University, Taipei, 10617, Taiwan.,Biodiversity Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Mong-Hsun Tsai
- Institute of Biotechnology, College of Bioresources and Agriculture, National Taiwan University, Taipei, 10617, Taiwan.,Centers for Genomics and Precision Medicine, National Taiwan University, Taipei, 10617, Taiwan.,Agricultural Biotechnology Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Hsiang-Ting Huang
- Department of Entomology and Research Center for Plant Medicine, College of Bioresources and Agriculture, National Taiwan University, Taipei, 10617, Taiwan
| | - Ching-Chu Tsai
- Department of Entomology and Research Center for Plant Medicine, College of Bioresources and Agriculture, National Taiwan University, Taipei, 10617, Taiwan
| | - Mei-Ju Chen
- Centers for Genomics and Precision Medicine, National Taiwan University, Taipei, 10617, Taiwan
| | - Da-Syuan Yang
- Department of Entomology and Research Center for Plant Medicine, College of Bioresources and Agriculture, National Taiwan University, Taipei, 10617, Taiwan
| | - Teng-Zhi Yang
- Department of Entomology and Research Center for Plant Medicine, College of Bioresources and Agriculture, National Taiwan University, Taipei, 10617, Taiwan
| | - John Wang
- Biodiversity Research Center, Academia Sinica, Taipei, 11529, Taiwan.
| | - Rong-Nan Huang
- Department of Entomology and Research Center for Plant Medicine, College of Bioresources and Agriculture, National Taiwan University, Taipei, 10617, Taiwan.
| |
Collapse
|
4
|
da Silva RM, Vital WO, Martins RS, Moraes J, Gomes H, Calixto C, Konnai S, Ohashi K, da Silva Vaz I, Logullo C. Differential expression of PEPCK isoforms is correlated to Aedes aegypti oogenesis and embryogenesis. Comp Biochem Physiol B Biochem Mol Biol 2021; 256:110618. [PMID: 34015437 DOI: 10.1016/j.cbpb.2021.110618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 05/05/2021] [Accepted: 05/14/2021] [Indexed: 11/19/2022]
Abstract
The mosquito Aedes aegypti undertakes a shift in carbohydrate metabolism during embryogenesis, including an increase in the activity of phosphoenolpyruvate carboxykinase (PEPCK), a key gluconeogenic enzyme, at critical steps of embryo development. All eukaryotes studied to date present two PEPCK isoforms, namely PEPCK-M (mitochondrial) and PEPCK-C (cytosolic). In A. aegypti, however, these proteins are so far uncharacterized. In the present work we describe two A. aegypti PEPCK isoforms by sequence alignment, protein modeling, and transcription analysis in different tissues, as well as PEPCK enzymatic activity assays in mitochondrial and cytoplasmic compartments during oogenesis and embryogenesis. First, we characterized the protein sequences compared to other organisms, and identified conserved sites and key amino acids. We also performed structure modeling for AePEPCK(M) and AePEPCK(C), identifying highly conserved structural sites, as well as a signal peptide in AePEPCK(M) localized in a very hydrophobic region. Moreover, after blood meal and during mosquito oogenesis and embryogenesis, both PEPCKs isoforms showed different transcriptional profiles, suggesting that mRNA for the cytosolic form is transmitted maternally, whereas the mitochondrial form is synthesized by the zygote. Collectively, these results improve our understanding of mosquito physiology and may yield putative targets for developing new methods for A. aegypti control.
Collapse
Affiliation(s)
- Renato Martins da Silva
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Wagner Oliveira Vital
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, RJ, Brazil
| | | | - Jorge Moraes
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, RJ, Brazil
| | - Helga Gomes
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, RJ, Brazil
| | - Christiano Calixto
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, RJ, Brazil
| | - Satoru Konnai
- Laboratory of Infectious Diseases, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Kita-ku Sapporo 060-0818, Japan
| | - Kazuhiko Ohashi
- Laboratory of Infectious Diseases, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Kita-ku Sapporo 060-0818, Japan
| | - Itabajara da Silva Vaz
- Centro de Biotecnologia and Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Carlos Logullo
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil.
| |
Collapse
|
5
|
Waltero C, Martins R, Calixto C, da Fonseca RN, Abreu LAD, da Silva Vaz I, Logullo C. The hallmarks of GSK-3 in morphogenesis and embryonic development metabolism in arthropods. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2020; 118:103307. [PMID: 31857215 DOI: 10.1016/j.ibmb.2019.103307] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 11/26/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
Several research groups around the world have studied diverse aspects of energy metabolism in arthropod disease vectors, with the aim of discovering potential control targets. As in all oviparous organisms, arthropod embryonic development is characterized by the mobilization of maternally-derived metabolites for the formation of new tissues and organs. Glycogen synthase kinase-3 (GSK-3) is a serine-threonine kinase described as an important regulator of metabolism and development in a wide range of organisms. GSK-3 was first identified based on its action upon glycogen synthase, a central enzyme in glycogen biosynthesis. Currently, it is recognized as a key component of multiple cellular processes such as glucose metabolism, apoptosis, cell proliferation, transcription, cell migration, and immune response. The present review will describe the current knowledge on GSK-3 activation and its role in morphogenesis and embryonic metabolism in arthropods. Altogether, the information discussed here can spark new approaches and strategies for further studies, enhancing our understanding of these important arthropod vectors and strengthening the resources in the search for novel control methods.
Collapse
Affiliation(s)
- Camila Waltero
- Instituto de Biodiversidade e Sustentabilidade NUPEM, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Brazil
| | - Renato Martins
- Instituto de Biodiversidade e Sustentabilidade NUPEM, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Brazil
| | - Christiano Calixto
- Instituto de Biodiversidade e Sustentabilidade NUPEM, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Brazil
| | - Rodrigo Nunes da Fonseca
- Instituto de Biodiversidade e Sustentabilidade NUPEM, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Brazil; Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular (INCT-EM), Brazil
| | - Leonardo Araujo de Abreu
- Instituto de Biodiversidade e Sustentabilidade NUPEM, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Brazil; Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular (INCT-EM), Brazil
| | - Itabajara da Silva Vaz
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular (INCT-EM), Brazil; Centro de Biotecnologia and Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Brazil
| | - Carlos Logullo
- Instituto de Biodiversidade e Sustentabilidade NUPEM, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Brazil; Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular (INCT-EM), Brazil.
| |
Collapse
|