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Dubey H, Pradeep AR, Neog K, Debnath R, Aneesha PJ, Shah SK, Kamatchi I, Ponnuvel KM, Ramesha A, Vijayan K, Nongthomba U, Bora U, Vankadara S, VijayaKumari KM, Arunkumar KP. Genome sequencing and assembly of Indian golden silkmoth, Antheraea assamensis Helfer (Saturniidae, Lepidoptera). Genomics 2024; 116:110841. [PMID: 38599255 DOI: 10.1016/j.ygeno.2024.110841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 03/19/2024] [Accepted: 04/03/2024] [Indexed: 04/12/2024]
Abstract
Muga silkworm (Antheraea assamensis), one of the economically important wild silkmoths, is unique among saturniid silkmoths. It is confined to the North-eastern part of India. Muga silk has the highest value among the other silks. Unlike other silkmoths, A. assamensis has a low chromosome number (n = 15), and ZZ/ZO sex chromosome system. Here, we report the first high-quality draft genome of A. assamensis, assembled by employing the Illumina and PacBio sequencing platforms. The assembled genome of A. assamensis is 501.18 Mb long, with 2697 scaffolds and an N50 of 683.23 Kb. The genome encompasses 18,385 protein-coding genes, 86.29% of which were functionally annotated. Phylogenetic analysis of A. assamensis revealed its divergence from other Antheraea species approximately 28.7 million years ago. Moreover, an investigation into detoxification-related gene families, CYP450, GST, and ABC-transporter, revealed a significant expansion in A. assamensis as compared to the Bombyx mori. This expansion is comparable to Spodoptera litura, suggesting adaptive responses linked to the polyphagous behavior observed in these insects. This study provides valuable insights into the molecular basis of evolutionary divergence and adaptations in muga silkmoth. The genome assembly reported in this study will significantly help in the functional genomics studies on A. assamensis and other Antheraea species along with comparative genomics analyses of Bombycoidea insects.
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Affiliation(s)
- Himanshu Dubey
- Seribiotech Research Laboratory, Central Silk Board, Kodathi, Bangalore, India
| | - A R Pradeep
- Seribiotech Research Laboratory, Central Silk Board, Kodathi, Bangalore, India
| | - Kartik Neog
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, India
| | - Rajal Debnath
- Seribiotech Research Laboratory, Central Silk Board, Kodathi, Bangalore, India; Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, India
| | - P J Aneesha
- Seribiotech Research Laboratory, Central Silk Board, Kodathi, Bangalore, India
| | - Suraj Kumar Shah
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, India
| | - Indumathi Kamatchi
- Seribiotech Research Laboratory, Central Silk Board, Kodathi, Bangalore, India
| | - K M Ponnuvel
- Seribiotech Research Laboratory, Central Silk Board, Kodathi, Bangalore, India
| | - A Ramesha
- Seribiotech Research Laboratory, Central Silk Board, Kodathi, Bangalore, India
| | | | - Upendra Nongthomba
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore, India
| | - Utpal Bora
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Guwahati, India
| | | | - K M VijayaKumari
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, India
| | - Kallare P Arunkumar
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, India.
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Yang HL, Yu JM, Cao F, Li WY, Li B, Lei X, Li SG, Liu S, Li MY. Unclassified glutathione-S-transferase AiGSTu1 confers chlorantraniliprole tolerance in Agrotis ipsilon. PEST MANAGEMENT SCIENCE 2024; 80:1107-1117. [PMID: 37862262 DOI: 10.1002/ps.7841] [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: 08/04/2023] [Revised: 10/09/2023] [Accepted: 10/20/2023] [Indexed: 10/22/2023]
Abstract
BACKGROUND Chlorantraniliprole (CAP) is a diamide insecticide with high efficacy against many pest insects, including the black cutworm, Agrotis ipsilon. Agrotis ipsilon is a serious pest causing significant yield losses in crops. Glutathione-S-transferases (GSTs) belong to a family of metabolic enzymes that can detoxify a wide range of pesticides. However, little is known about the functions of GSTs in CAP tolerance in A. ipsilon. RESULTS A cDNA sequence (designated AiGSTu1) encoding an unclassified GST was identified from A. ipsilon. AiGSTu1 is highly expressed during the 3rd -instar larval and the pupal stages. Most of the mRNA transcripts were found in larval Malpighian tubules. Exposure to CAP strongly enhanced AiGSTu1 expression, GST activity, hydrogen peroxide (H2 O2 ) and malondialdehyde levels in larvae. H2 O2 treatment upregulated the transcription level of AiGSTu1, suggesting that CAP-induced oxidative stress may activate AiGSTu1 expression. The activity of recombinant AiGSTu1 was inhibited by CAP in a dose-dependent manner. Metabolism assay results demonstrated that AiGSTu1 is capable of depleting CAP. Overexpression of AiGSTu1 enhanced the tolerance of Escherichia coli cells to H2 O2 and the oxidative stress inducer, cumene hydroperoxide. Silencing of AiGSTu1 by RNA interference increased the susceptibility of A. ipsilon larvae to CAP. CONCLUSION The findings of this study provide valuable insights into the potential role of AiGSTu1 in CAP detoxification and will improve our understanding of CAP tolerance in A. ipsilon. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Hao-Lan Yang
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Jia-Min Yu
- Sichuan Branch of China National Tobacco Corporation, Chengdu, China
| | - Fu Cao
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Wu-Ye Li
- Tobacco Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Bin Li
- Sichuan Branch of China National Tobacco Corporation, Chengdu, China
| | - Xiao Lei
- Luzhou Branch of Sichuan Tobacco Corporation, Luzhou, China
| | - Shi-Guang Li
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Su Liu
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Mao-Ye Li
- Key Laboratory of Agri-Products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, China
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Cao F, Yu JM, Sun HM, He JX, Li SG, Liu S, Li MY. Epsilon Class Glutathione S-Transferase Confers Phoxim Tolerance in the Black Cutworm Agrotis ipsilon (Lepidoptera: Noctuidae). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20680-20689. [PMID: 38088263 DOI: 10.1021/acs.jafc.3c07964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
The black cutworm Agrotis ipsilon is a serious crop pest. Phoxim, an organophosphorus insecticide, has been widely used to control A. ipsilon. When phoxim is extensively applied, the susceptibility of A. ipsilon to insecticide is reduced. However, the mechanisms of tolerance of A. ipsilon to phoxim remain unclear. Herein, we report that an epsilon class glutathione S-transferase, AiGSTE1, confers phoxim tolerance in A. ipsilon. Exposure to a sublethal concentration (LC50) of phoxim caused oxidative stress and activated the transcription of AiGSTe1 genes in A. ipsilon larvae. Recombinant AiGSTE1 expressed in Escherichia coli could metabolize phoxim. Furthermore, E. coli cells overexpressing AiGSTE1 displayed significant tolerance to oxidative stress. Knockdown of AiGSTe1 by RNA interference significantly increased the mortality of A. ipsilon larvae to phoxim. These results demonstrate that AiGSTE1 confers phoxim tolerance in A. ipsilon by metabolizing the insecticide and preventing phoxim-induced oxidative stress.
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Affiliation(s)
- Fu Cao
- Key Laboratory of Agri-products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Jia-Min Yu
- Sichuan Tobacco Science Institute, Sichuan Branch of China National Tobacco Corporation, Chengdu 610041, China
| | - Hui-Mei Sun
- Key Laboratory of Agri-products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Ji-Xian He
- Guangyuan Branch of Sichuan Tobacco Corporation, Guangyuan 628017, China
| | - Shi-Guang Li
- Key Laboratory of Agri-products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Su Liu
- Key Laboratory of Agri-products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Mao-Ye Li
- Key Laboratory of Agri-products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
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Schwartz M, Boichot V, Muradova M, Fournier P, Senet P, Nicolai A, Canon F, Lirussi F, Ladeira R, Maibeche M, Chertemps T, Aubert E, Didierjean C, Neiers F. Structure-activity analysis suggests an olfactory function for the unique antennal delta glutathione transferase of Apis mellifera. FEBS Lett 2023; 597:3038-3048. [PMID: 37933500 DOI: 10.1002/1873-3468.14770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/04/2023] [Accepted: 10/09/2023] [Indexed: 11/08/2023]
Abstract
Glutathione transferases (GST) are detoxification enzymes that conjugate glutathione to a wide array of molecules. In the honey bee Apis mellifera, AmGSTD1 is the sole member of the delta class of GSTs, with expression in antennae. Here, we structurally and biochemically characterized AmGSTD1 to elucidate its function. We showed that AmGSTD1 can efficiently catalyse the glutathione conjugation of classical GST substrates. Additionally, AmGSTD1 exhibits binding properties with a range of odorant compounds. AmGSTD1 has a peculiar interface with a structural motif we propose to call 'sulfur sandwich'. This motif consists of a cysteine disulfide bridge sandwiched between the sulfur atoms of two methionine residues and is stabilized by CH…S hydrogen bonds and S…S sigma-hole interactions. Thermal stability studies confirmed that this motif is important for AmGSTD1 stability and, thus, could facilitate its functions in olfaction.
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Affiliation(s)
- Mathieu Schwartz
- CSGA, Flavour Perception: Molecular Mechanisms (Flavours), Université de Bourgogne, INRAE, CNRS, Institut Agro, Dijon, France
| | - Valentin Boichot
- CSGA, Flavour Perception: Molecular Mechanisms (Flavours), Université de Bourgogne, INRAE, CNRS, Institut Agro, Dijon, France
| | - Mariam Muradova
- CSGA, Flavour Perception: Molecular Mechanisms (Flavours), Université de Bourgogne, INRAE, CNRS, Institut Agro, Dijon, France
- International Research Center "Biotechnologies of the Third Millennium", Faculty of Biotechnologies (BioTech), ITMO University, Saint-Petersburg, Russia
| | | | - Patrick Senet
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne Franche-Comté, Dijon, France
| | - Adrien Nicolai
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne Franche-Comté, Dijon, France
| | - Francis Canon
- CSGA, Flavour Perception: Molecular Mechanisms (Flavours), Université de Bourgogne, INRAE, CNRS, Institut Agro, Dijon, France
| | - Frederic Lirussi
- Plateforme PACE, Laboratoire de Pharmacologie-Toxicologie, Bioinformatique & Big Data Au Service de La Santé 2B2S, UFR Santé, Université de Franche-Comté, INSERM U1231, Centre Hospitalier Universitaire, Besançon, France
| | - Ruben Ladeira
- Plateforme PACE, Laboratoire de Pharmacologie-Toxicologie, Bioinformatique & Big Data Au Service de La Santé 2B2S, UFR Santé, Université de Franche-Comté, INSERM U1231, Centre Hospitalier Universitaire, Besançon, France
| | - Martine Maibeche
- Institut d'Ecologie et des Sciences de l'Environnement de Paris, Sorbonne Université, INRAE, CNRS, IRD, UPEC, Paris, France
| | - Thomas Chertemps
- Institut d'Ecologie et des Sciences de l'Environnement de Paris, Sorbonne Université, INRAE, CNRS, IRD, UPEC, Paris, France
| | | | | | - Fabrice Neiers
- CSGA, Flavour Perception: Molecular Mechanisms (Flavours), Université de Bourgogne, INRAE, CNRS, Institut Agro, Dijon, France
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Catto MA, Labadie PE, Jacobson AL, Kennedy GG, Srinivasan R, Hunt BG. Pest status, molecular evolution, and epigenetic factors derived from the genome assembly of Frankliniella fusca, a thysanopteran phytovirus vector. BMC Genomics 2023; 24:343. [PMID: 37344773 DOI: 10.1186/s12864-023-09375-5] [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: 11/30/2022] [Accepted: 05/13/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND The tobacco thrips (Frankliniella fusca Hinds; family Thripidae; order Thysanoptera) is an important pest that can transmit viruses such as the tomato spotted wilt orthotospovirus to numerous economically important agricultural row crops and vegetables. The structural and functional genomics within the order Thysanoptera has only begun to be explored. Within the > 7000 known thysanopteran species, the melon thrips (Thrips palmi Karny) and the western flower thrips (Frankliniella occidentalis Pergrande) are the only two thysanopteran species with assembled genomes. RESULTS A genome of F. fusca was assembled by long-read sequencing of DNA from an inbred line. The final assembly size was 370 Mb with a single copy ortholog completeness of ~ 99% with respect to Insecta. The annotated genome of F. fusca was compared with the genome of its congener, F. occidentalis. Results revealed many instances of lineage-specific differences in gene content. Analyses of sequence divergence between the two Frankliniella species' genomes revealed substitution patterns consistent with positive selection in ~ 5% of the protein-coding genes with 1:1 orthologs. Further, gene content related to its pest status, such as xenobiotic detoxification and response to an ambisense-tripartite RNA virus (orthotospovirus) infection was compared with F. occidentalis. Several F. fusca genes related to virus infection possessed signatures of positive selection. Estimation of CpG depletion, a mutational consequence of DNA methylation, revealed that F. fusca genes that were downregulated and alternatively spliced in response to virus infection were preferentially targeted by DNA methylation. As in many other insects, DNA methylation was enriched in exons in Frankliniella, but gene copies with homology to DNA methyltransferase 3 were numerous and fragmented. This phenomenon seems to be relatively unique to thrips among other insect groups. CONCLUSIONS The F. fusca genome assembly provides an important resource for comparative genomic analyses of thysanopterans. This genomic foundation allows for insights into molecular evolution, gene regulation, and loci important to agricultural pest status.
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Affiliation(s)
- Michael A Catto
- Department of Entomology, University of Georgia, Athens, GA, 30602, USA
| | - Paul E Labadie
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, 27695, USA
| | - Alana L Jacobson
- Department of Entomology and Plant Pathology, Auburn University College of Agriculture, Auburn, AL, 36849, USA
| | - George G Kennedy
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, 27695, USA
| | | | - Brendan G Hunt
- Department of Entomology, University of Georgia, Griffin, GA, 30223, USA.
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Liu JN, Xi JH, Wang Z, Zhao SW, Wang X, Bu YW, Zhou KX, Pan Y, Wang S. Glutathione S-Transferase Highly Expressed in Holotrichia parallela Antennae Inactivates the Odorant Unsaturated Aldehyde Volatiles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37256838 DOI: 10.1021/acs.jafc.3c00915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Odorant-degrading enzymes in insects play a vital role in maintaining olfactory sensitivity. However, the role and molecular mechanism of glutathione S-transferases (GSTs) in odorant inactivation has been rarely studied. In the present study, 31 GSTs were identified from the antennal transcriptome of Holotrichia parallela. HpGSTd1 possesses the highest transcriptome expression level. Recombinant HpGSTd1 showed degradation activity toward various unsaturated aldehyde volatiles. Furthermore, the metabolite of cinnamaldehyde was identified by high-resolution mass spectrometry (HRMS). The molecular docking analysis and site-directed mutagenesis revealed the key residues of HpGSTd1 in degrading odorants. In addition, the unsaturated aldehyde volatiles elicited the behavioral and electrophysiological responses of H. parallela. Taken together, our findings suggest that HpGSTd1 may play an essential role in inactivating odorants in H. parallela, which provides new insights for identifying molecular targets and exploring effective olfactory regulators for this underground pest.
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Affiliation(s)
- Jia-Nan Liu
- College of Plant Science, Jilin University, Changchun, Jilin 130062, People's Republic of China
| | - Jing-Hui Xi
- College of Plant Science, Jilin University, Changchun, Jilin 130062, People's Republic of China
| | - Zhun Wang
- Changchun Customs Technology Center, Changchun, Jilin 130062, People's Republic of China
| | - Shi-Wen Zhao
- College of Plant Science, Jilin University, Changchun, Jilin 130062, People's Republic of China
| | - Xiao Wang
- College of Plant Science, Jilin University, Changchun, Jilin 130062, People's Republic of China
| | - Yun-Wei Bu
- College of Plant Science, Jilin University, Changchun, Jilin 130062, People's Republic of China
| | - Ke-Xin Zhou
- College of Plant Science, Jilin University, Changchun, Jilin 130062, People's Republic of China
| | - Yu Pan
- College of Plant Science, Jilin University, Changchun, Jilin 130062, People's Republic of China
| | - Shang Wang
- College of Plant Science, Jilin University, Changchun, Jilin 130062, People's Republic of China
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Schwartz M, Boichot V, Fraichard S, Muradova M, Senet P, Nicolai A, Lirussi F, Bas M, Canon F, Heydel JM, Neiers F. Role of Insect and Mammal Glutathione Transferases in Chemoperception. Biomolecules 2023; 13:biom13020322. [PMID: 36830691 PMCID: PMC9953322 DOI: 10.3390/biom13020322] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Glutathione transferases (GSTs) are ubiquitous key enzymes with different activities as transferases or isomerases. As key detoxifying enzymes, GSTs are expressed in the chemosensory organs. They fulfill an essential protective role because the chemosensory organs are located in the main entry paths of exogenous compounds within the body. In addition to this protective function, they modulate the perception process by metabolizing exogenous molecules, including tastants and odorants. Chemosensory detection involves the interaction of chemosensory molecules with receptors. GST contributes to signal termination by metabolizing these molecules. By reducing the concentration of chemosensory molecules before receptor binding, GST modulates receptor activation and, therefore, the perception of these molecules. The balance of chemoperception by GSTs has been shown in insects as well as in mammals, although their chemosensory systems are not evolutionarily connected. This review will provide knowledge supporting the involvement of GSTs in chemoperception, describing their localization in these systems as well as their enzymatic capacity toward odorants, sapid molecules, and pheromones in insects and mammals. Their different roles in chemosensory organs will be discussed in light of the evolutionary advantage of the coupling of the detoxification system and chemosensory system through GSTs.
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Affiliation(s)
- Mathieu Schwartz
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Valentin Boichot
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Stéphane Fraichard
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Mariam Muradova
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Patrick Senet
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne Franche-Comté, 21078 Dijon, France
| | - Adrien Nicolai
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne Franche-Comté, 21078 Dijon, France
| | - Frederic Lirussi
- UMR 1231, Lipides Nutrition Cancer, INSERM, 21000 Dijon, France
- UFR des Sciences de Santé, Université de Bourgogne Franche-Comté, 25000 Besançon, France
- Plateforme PACE, Laboratoire de Pharmacologie-Toxicologie, Centre Hospitalo-Universitaire Besançon, 25000 Besançon, France
| | - Mathilde Bas
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Francis Canon
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Jean-Marie Heydel
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Fabrice Neiers
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
- Correspondence:
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Heisi HD, Awosusi AA, Nkuna R, Matambo TS. Phytoextraction of anthropogenic heavy metal contamination of the Blesbokspruit wetland: Potential of wetland macrophytes. JOURNAL OF CONTAMINANT HYDROLOGY 2023; 253:104101. [PMID: 36379730 DOI: 10.1016/j.jconhyd.2022.104101] [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: 06/28/2022] [Revised: 10/09/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Blesbokspruit wetland is one of the least conserved ecosystems in the Southern Africa region with active and latent threats of anthropogenic contamination stretching over decades of mining wastewater discharge, agricultural run-off, and a consistent influx of untreated sewage. This study provides an insight into the present-day spatial distribution of heavy metal contamination and the role of localised macrophytes in their phytoremediation. With exception of the first sampling point, the concentration of heavy metals in water samples throughout the wetland was within limits however findings from sediment samples were the inverse. The concentrations of Chromium and Nickel significantly exceeded both effect range low (ERL) and effect range medium (ERM) limits (250-430 mg/Kg and 73-151 mg/Kg respectively) as set out by international sediment quality guidelines. Emergent- Phragmites australis, Typha capensis, and free-flowing-Eichhornia crassipes macrophytes, which are naturally localised to the wetland were found to have varying bioaccumulation potential for different heavy metals; Bioconcentration of heavy metals in emergent macrophytes was relatively low especially for Nickel and Chromium compared to free-flowing macrophytes. E. crassipes accumulated significant amounts of the heavy metals with root concentrations of up to 17.23, 116.6, 330.5, and 342.9 mg/Kg for Arsenic, Lead, Nickel, and Chromium respectively. The emergent macrophytes were however found to bioconcentrate Arsenic up to 1.15 L/Kg (T. capensis) and 9.9 L/Kg (P. Australis) at sites 4 and 5 respectively. Findings with regards to bioconcentration especially of the E. crassipes, validate recommendations for the utilization of hyperaccumulating macrophytes for the natural recovery of these heavy metals towards alleviating the anthropogenic stress on this valuable ecosystem.
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Affiliation(s)
- Hlalele D Heisi
- Centre for Competence in Environmental Biotechnology, College of Animal and Environmental Science, University of South Africa, Florida Science Campus, South Africa
| | - Ayo A Awosusi
- Centre for Competence in Environmental Biotechnology, College of Animal and Environmental Science, University of South Africa, Florida Science Campus, South Africa
| | - Rosina Nkuna
- Centre for Competence in Environmental Biotechnology, College of Animal and Environmental Science, University of South Africa, Florida Science Campus, South Africa
| | - Tonderayi S Matambo
- Centre for Competence in Environmental Biotechnology, College of Animal and Environmental Science, University of South Africa, Florida Science Campus, South Africa.
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Zhang F, Chen Y, Zhao X, Guo S, Hong F, Zhi Y, Zhang L, Zhou Z, Zhang Y, Zhou X, Li X. Antennal transcriptomic analysis of carboxylesterases and glutathione S-transferases associated with odorant degradation in the tea gray geometrid, Ectropis grisescens (Lepidoptera, Geometridae). Front Physiol 2023; 14:1183610. [PMID: 37082242 PMCID: PMC10110894 DOI: 10.3389/fphys.2023.1183610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 03/21/2023] [Indexed: 04/22/2023] Open
Abstract
Introduction: Carboxylesterases (CXEs) and glutathione S-transferases (GSTs) can terminate olfactory signals during chemosensation by rapid degradation of odorants in the vicinity of receptors. The tea grey geometrid, Ectropis grisescens (Lepidoptera, Geometridae), one of the most devastating insect herbivores of tea plants in China, relies heavily on plant volatiles to locate the host plants as well as the oviposition sites. However, CXEs and GSTs involved in signal termination and odorant clearance in E. grisescens remains unknown. Methods: In this study, identification and spatial expression profiles of CXEs and GSTs in this major tea pest were investigated by transcriptomics and qRT-PCR, respectively. Results: As a result, we identified 28 CXEs and 16 GSTs from female and male antennal transcriptomes. Phylogenetic analyses clustered these candidates into several clades, among which antennal CXEs, mitochondrial and cytosolic CXEs, and delta group GSTs contained genes commonly associated with odorants degradation. Spatial expression profiles showed that most CXEs (26) were expressed in antennae. In comparison, putative GSTs exhibited a diverse expression pattern across different tissues, with one GST expressed specifically in the male antennae. Disscussion: These combined results suggest that 12 CXEs (EgriCXE1, 2, 4, 6, 8, 18, 20-22, 24, 26, and 29) and 5 GSTs (EgriGST1 and EgriGST delta group) provide a major source of candidate genes for odorants degradation in E. grisescens.
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Affiliation(s)
- Fangmei Zhang
- College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yijun Chen
- College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, China
- College of Agriculture, Xinjiang Agricultural University, Urumqi, China
| | - Xiaocen Zhao
- College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Shibao Guo
- College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Feng Hong
- College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Yanan Zhi
- College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Li Zhang
- College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Zhou Zhou
- College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Yunhui Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xuguo Zhou
- Department of Entomology, University of Kentucky, Lexington, KY, United states
| | - Xiangrui Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Xiangrui Li,
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10
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Zhang L, Shen Y, Jiang X, Liu S. Transcriptomic Identification and Expression Profile Analysis of Odorant-Degrading Enzymes from the Asian Corn Borer Moth, Ostrinia furnacalis. INSECTS 2022; 13:1027. [PMID: 36354851 PMCID: PMC9697913 DOI: 10.3390/insects13111027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/03/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
The Asian corn borer moth Ostrinia furnacalis is an important lepidopteran pest of maize in Asia. Odorant-degrading enzymes (ODEs), including carboxylesterases (CCEs), glutathione S-transferases (GSTs), cytochrome P450s (CYPs), UDP-glycosyltransferases (UGTs), and aldehyde oxidases (AOXs), are responsible for rapid inactivation of odorant signals in the insect antennae. In this study, we performed a transcriptome assembly for the antennae of O. furnacalis to identify putative ODE genes. Transcriptome sequencing revealed 35,056 unigenes, and 21,012 (59.94%) of these were annotated by searching against the reference sequences in the NCBI non-redundant (NR) protein database. For functional classification, these unigenes were subjected to Gene Ontology (GO), Eukaryotic Orthologous Groups (KOG), and Kyoto Encyclopedia of Genes and Genomes (KEGG) annotations. We identified 79 genes encoding putative ODEs: 19 CCEs, 17 GSTs, 24 CYPs, 13 UGTs, and 6 AOXs. BLASTX best hit results indicated that these genes shared quite high amino acid identities with their respective orthologs from other lepidopteran species. Reverse transcription-quantitative PCR showed that OfurCCE2, OfurCCE5, and OfurCCE18 were enriched in male antennae, while OfurCCE7 and OfurCCE10 were enriched in female antennae. OfurCCE14 and OfurCCE15 were expressed at near-equal amounts in the antennae of both sexes. Our findings establish a solid foundation for future studies aimed at understanding the olfactory functions of these genes in O. furnacalis.
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Affiliation(s)
- Liya Zhang
- Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Yidan Shen
- Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Xingchuan Jiang
- Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Su Liu
- Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
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11
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Koirala B K S, Moural T, Zhu F. Functional and Structural Diversity of Insect Glutathione S-transferases in Xenobiotic Adaptation. Int J Biol Sci 2022; 18:5713-5723. [PMID: 36263171 PMCID: PMC9576527 DOI: 10.7150/ijbs.77141] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/29/2022] [Indexed: 01/12/2023] Open
Abstract
As a superfamily of multifunctional enzymes that is mainly associated with xenobiotic adaptation, glutathione S-transferases (GSTs) facilitate insects' survival under chemical stresses in their environment. GSTs confer xenobiotic adaptation through direct metabolism or sequestration of xenobiotics, and/or indirectly by providing protection against oxidative stress induced by xenobiotic exposure. In this article, a comprehensive overview of current understanding on the versatile functions of insect GSTs in detoxifying chemical compounds is presented. The diverse structures of different classes of insect GSTs, specifically the spatial localization and composition of their amino acid residues constituted in their active sites are also summarized. Recent availability of whole genome sequences of numerous insect species, accompanied by RNA interference, X-ray crystallography, enzyme kinetics and site-directed mutagenesis techniques have significantly enhanced our understanding of functional and structural diversity of insect GSTs.
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Affiliation(s)
- Sonu Koirala B K
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA
| | - Timothy Moural
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA
| | - Fang Zhu
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.,Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA.,✉ Corresponding author: Dr. Fang Zhu, Department of Entomology and Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA. Phone: +1-814-863-4432; Fax: +1- 814-865-3048; E-mail:
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12
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Venthur H, Lizana P, Manosalva L, Rojas V, Godoy R, Rocha A, Aguilera I, Palma-Millanao R, Fajardo V, Quiroz A, Mutis A. Analysis of glutathione-S-transferases from larvae of Galleria mellonella (Lepidoptera, Pyralidae) with potential alkaloid detoxification function. Front Physiol 2022; 13:989006. [PMID: 36148307 PMCID: PMC9486002 DOI: 10.3389/fphys.2022.989006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
The greater wax moth, Galleria mellonella, is a global pest for beehives, doing damage in the larval stage. Although a significant number of studies have reported on larvae and adults, to date no effective pest control has been implemented. In this study, we tested larval resistance to alkaloids from Berberis microphylla, and the objective was to identify enzymes that participate in alkaloid detoxification through enzymatic assays, bioinformatics analysis and qRT-PCR. Findings suggest glutathione-S-transferases (GSTs), from an increased metabolic mechanism, are responsible for alkaloid detoxification rather than cytochrome P450 (CYP), carboxylesterases (CarE). A bioinformatics analysis from transcriptome data revealed 22 GSTs present in both G. mellonella larvae and adults. The qRT-PCR experiments corroborated the presence of the 22 GSTs in larvae, where GST8 and GST20 stood out with the highest expression after berberine treatment. Structural information around GST8 and GST20 suggests that GST8 could bind berberine stronger than GST20. These findings represent an important advance in the study of detoxification enzymes in G. mellonella, expanding the role of delta-class GSTs towards alkaloids. Likewise, GST inhibition by alkaloid analogs is proposed in the framework of integrated pest management strategies.
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Affiliation(s)
- Herbert Venthur
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente, CIBAMA, Universidad de La Frontera, Temuco, Chile
| | - Paula Lizana
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - Loreto Manosalva
- Facultad de Ciencias, Universidad de Magallanes, Punta Arenas, Chile
| | - Valentina Rojas
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - Ricardo Godoy
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - Adonis Rocha
- Carrera de Bioquímica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - Iván Aguilera
- Carrera de Bioquímica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - Rubén Palma-Millanao
- Laboratorio de Ciencias de Insectos, Instituto de Investigaciones Agropecuarias, INIA, Vilcún, Chile
| | - Victor Fajardo
- Facultad de Ciencias, Universidad de Magallanes, Punta Arenas, Chile
| | - Andrés Quiroz
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente, CIBAMA, Universidad de La Frontera, Temuco, Chile
| | - Ana Mutis
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente, CIBAMA, Universidad de La Frontera, Temuco, Chile
- *Correspondence: Ana Mutis,
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13
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Toxicity and biochemical impact of methoxyfenozide/spinetoram mixture on susceptible and methoxyfenozide-selected strains of Spodoptera littoralis (Lepidoptera: Noctuidae). Sci Rep 2022; 12:6974. [PMID: 35484385 PMCID: PMC9050723 DOI: 10.1038/s41598-022-10812-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/11/2022] [Indexed: 11/08/2022] Open
Abstract
Methoxyfenozide (M) is one of the selective insecticides used in integrated pest management (IPM) programs for lepidopteran pests. However, recent studies reported a development of M-resistance, which prompted us to look for alternatives. Here, we investigate the potency of a mixture of M with spinetoram (Sp) on M-resistant insects. In the laboratory, a selection pressure with M has carried out on Spodoptera littoralis (Lepidoptera: Noctuidae) strains. A dipping technique was used to evaluate the toxicity of a sublethal concentration of M and Sp. on S. littoralis larvae, and the same concentrations were used to assess the toxic impact of their combination on susceptible (SUS) and M-selected (MS) strains. The toxicity of M/Sp mixtures was computed using a combination index equation, and a potentiation effect was observed in the two tested strains. Synergism tests revealed that piperonyl butoxide had considerable synergistic effects on M toxicity in the MS strain. The results revealed that the M/Sp mixture's negative effect on both monooxygenases and esterases is most likely the cause of its potentiation effect on the SUS and MS strains. It was concluded that M/Sp mixtures are effective against M-resistant S. littoralis strains, so these can be used in IPM programs.
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14
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Godoy R, Mutis A, Carabajal Paladino L, Venthur H. Genome-Wide Identification of Aldehyde Oxidase Genes in Moths and Butterflies Suggests New Insights Into Their Function as Odorant-Degrading Enzymes. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.823119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aldehyde oxidases (AOXs) are common detoxifying enzymes in several organisms. In insects, AOXs act in xenobiotic metabolism and as odorant-degrading enzymes (ODEs). These last appear as crucial enzymes in the life cycle of insects, helping to reset their olfactory system, particularly in lepidopterans, which fulfill important ecological roles (e.g., pollination or destructive life cycles). A comprehensive understanding of their olfactory system has provided opportunities to study key chemosensory proteins. However, no significant advance has been made around lepidopteran AOXs research, and even less around butterflies, a recently evolved lineage. In this study we have identified novel AOX gene families in moths and butterflies in order to understand their role as ODEs. Eighteen genomes from both moths and butterflies were used for phylogenetics, molecular evolution and sequence analyses. We identified 164 AOXs, from which 91 are new. Their phylogeny showed two main clades that are potentially related to odorant-degrading function, where both moths and butterflies have AOXs. A first ODE-related clade seems to have a non-ditrysian origin, likely related to plant volatiles. A second ODE-related clade could be more pheromone-biased. Molecular evolution analysis suggests a slight purifying selection process, though a number of sites appeared under positive selection. ODE-related AOXs have changed a phenylalanine residue by proline in the active site. Finally, this study could serve as a reference for further evolutionary and functional studies around Lepidopteran AOXs.
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15
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Liu H, Tang Y, Wang Q, Shi H, Yin J, Li C. Identification and Characterization of an Antennae-Specific Glutathione S-Transferase From the Indian Meal Moth. Front Physiol 2021; 12:727619. [PMID: 34512396 PMCID: PMC8427598 DOI: 10.3389/fphys.2021.727619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 07/20/2021] [Indexed: 11/13/2022] Open
Abstract
Insect glutathione-S-transferases (GSTs) play essential roles in metabolizing endogenous and exogenous compounds. GSTs that are uniquely expressed in antennae are assumed to function as scavengers of pheromones and host volatiles in the odorant detection system. Based on this assumption, antennae-specific GSTs have been identified and functionally characterized in increasing number of insect species. In the present study, 17 putative GSTs were identified from the antennal transcriptomic dataset of the Indian meal moth, Plodia interpunctella, a severe stored-grain pest worldwide. Among the GSTs, only PiGSTd1 is antennae-specific according to both Fragments Per Kilobase Million (FPKM) and quantitative real-time PCR (qRT-PCR) analysis. Sequence analysis revealed that PiGSTd1 has a similar identity as many delta GSTs from other moths. Enzyme kinetic assays using 1-chloro-2,4-dinitrobenzene (CDNB) as substrates showed that the recombinant PiGSTd1 gave a Km of 0.2292 ± 0.01805 mM and a Vmax of 14.02 ± 0.2545 μmol·mg−1·min−1 under the optimal catalytic conditions (35°C and pH = 7.5). Further analysis revealed that the recombinant PiGSTd1 could efficiently degrade the sex pheromone component Z9-12:Ac (75.63 ± 5.52%), as well as aldehyde volatiles, including hexanal (89.10 ± 2.21%), heptanal (63.19 ± 5.36%), (E)-2-octenal (73.58 ± 3.92%), (E)-2-nonenal (75.81 ± 1.90%), and (E)-2-decenal (61.13 ± 5.24%). Taken together, our findings suggest that PiGSTd1 may play essential roles in degrading and inactivating a variety of odorants, especially sex pheromones and host volatiles of P. interpunctella.
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Affiliation(s)
- Hongmin Liu
- College of Agronomy, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Yin Tang
- College of plant protection, Hebei Agricultural University, Baoding, China
| | - Qinying Wang
- College of plant protection, Hebei Agricultural University, Baoding, China
| | - Hongzhong Shi
- College of Agronomy, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Jian Yin
- College of Agronomy, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Chengjun Li
- Tobacco Research Institute, Henan Academy of Agricultural Sciences, Xuchang, China
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16
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Zatsepina OG, Nikitina EA, Shilova VY, Chuvakova LN, Sorokina S, Vorontsova JE, Tokmacheva EV, Funikov SY, Rezvykh AP, Evgen'ev MB. Hsp70 affects memory formation and behaviorally relevant gene expression in Drosophila melanogaster. Cell Stress Chaperones 2021; 26:575-594. [PMID: 33829398 PMCID: PMC8065088 DOI: 10.1007/s12192-021-01203-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/20/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022] Open
Abstract
Heat shock proteins, in particular Hsp70, play a central role in proteostasis in eukaryotic cells. Due to its chaperone properties, Hsp70 is involved in various processes after stress and under normal physiological conditions. In contrast to mammals and many Diptera species, inducible members of the Hsp70 family in Drosophila are constitutively synthesized at a low level and undergo dramatic induction after temperature elevation or other forms of stress. In the courtship suppression paradigm used in this study, Drosophila males that have been repeatedly rejected by mated females during courtship are less likely than naive males to court other females. Although numerous genes with known function were identified to play important roles in long-term memory, there is, to the best of our knowledge, no direct evidence implicating Hsp70 in this process. To elucidate a possible role of Hsp70 in memory formation, we used D. melanogaster strains containing different hsp70 copy numbers, including strains carrying a deletion of all six hsp70 genes. Our investigations exploring the memory of courtship rejection paradigm demonstrated that a low constitutive level of Hsp70 is apparently required for learning and the formation of short and long-term memories in males. The performed transcriptomic studies demonstrate that males with different hsp70 copy numbers differ significantly in the expression of a few definite groups of genes involved in mating, reproduction, and immunity in response to rejection. Specifically, our analysis reveals several major pathways that depend on the presence of hsp70 in the genome and participate in memory formation and consolidation, including the cAMP signaling cascade.
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Affiliation(s)
- O G Zatsepina
- Engelhardt Institute of Molecular Biology of Russian Academy of Sciences, Moscow, Russia
| | - E A Nikitina
- Department of Neurogenetics, Pavlov Institute of Physiology, Russian Academy of Sciences, St. Petersburg, Russia
- Department of Human and Animal Anatomy and Physiology, Herzen State Pedagogical University, St. Petersburg, Russia
| | - V Y Shilova
- Engelhardt Institute of Molecular Biology of Russian Academy of Sciences, Moscow, Russia
| | - L N Chuvakova
- Engelhardt Institute of Molecular Biology of Russian Academy of Sciences, Moscow, Russia
| | - S Sorokina
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Moscow, Russia
| | - J E Vorontsova
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Moscow, Russia
| | - E V Tokmacheva
- Department of Neurogenetics, Pavlov Institute of Physiology, Russian Academy of Sciences, St. Petersburg, Russia
| | - S Y Funikov
- Engelhardt Institute of Molecular Biology of Russian Academy of Sciences, Moscow, Russia
| | - A P Rezvykh
- Engelhardt Institute of Molecular Biology of Russian Academy of Sciences, Moscow, Russia
| | - M B Evgen'ev
- Engelhardt Institute of Molecular Biology of Russian Academy of Sciences, Moscow, Russia.
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17
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Modulation of Sex Pheromone Discrimination by A UDP-Glycosyltransferase in Drosophila melanogaster. Genes (Basel) 2020; 11:genes11030237. [PMID: 32106439 PMCID: PMC7140800 DOI: 10.3390/genes11030237] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 01/08/2023] Open
Abstract
The detection and processing of chemical stimuli involve coordinated neuronal networks that process sensory information. This allows animals, such as the model species Drosophila melanogaster, to detect food sources and to choose a potential mate. In peripheral olfactory tissues, several classes of proteins are acting to modulate the detection of chemosensory signals. This includes odorant-binding proteins together with odorant-degrading enzymes (ODEs). These enzymes, which primarily act to eliminate toxic compounds from the whole organism also modulate chemodetection. ODEs are thought to neutralize the stimulus molecule concurrently to its detection, avoiding receptor saturation thus allowing chemosensory neurons to respond to the next stimulus. Here, we show that one UDP-glycosyltransferase (UGT36E1) expressed in D. melanogaster antennal olfactory sensory neurons (OSNs) is involved in sex pheromone discrimination. UGT36E1 overexpression caused by an insertion mutation affected male behavioral ability to discriminate sex pheromones while it increased OSN electrophysiological activity to male pheromones. Reciprocally, the decreased expression of UGT36E1, controlled by an RNAi transgene, improved male ability to discriminate sex pheromones whereas it decreased electrophysiological activity in the relevant OSNs. When we combined the two genotypes (mutation and RNAi), we restored wild-type-like levels both for the behavioral discrimination and UGT36E1 expression. Taken together, our results strongly suggest that this UGT plays a pivotal role in Drosophila pheromonal detection.
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18
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Olfactory cleft proteome does not reflect olfactory performance in patients with idiopathic and postinfectious olfactory disorder: A pilot study. Sci Rep 2018; 8:17554. [PMID: 30510230 PMCID: PMC6277379 DOI: 10.1038/s41598-018-35776-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 11/09/2018] [Indexed: 01/15/2023] Open
Abstract
Technical advances including liquid chromatography–tandem mass spectrometry and its data analysis enable detailed proteomic analysis of the nasal mucus. Alterations of the nasal mucus proteome may provoke substantial changes of the nasal physiology and have already been associated with rhinologic diseases such as allergic rhinitis. This study was conducted as a pilot study to map the olfactory cleft proteome using current techniques for proteomic analysis. Furthermore, we aimed to investigate proteomic changes as potential biomarkers in patients suffering from idiopathic and postinfectious olfactory disorders compared to healthy controls. Seven patients with idiopathic hyposmia and anosmia, seven patients with postinfectious hyposmia and anosmia and seven healthy controls were included in this study. In total, 1117 different proteins were detected in at least five patients in at least one group. Results of this study did not reveal significant differences regarding the proteomic composition of the olfactory cleft mucus between patients versus healthy controls. Among proteins involved in olfactory perception the G protein family was detected but also found unchanged between groups. Investigation of protein composition by liquid chromatography–tandem mass spectrometry enabled us to perform an in–depth analysis of the olfactory cleft mucus proteome regarding the diversity of different proteins in individual patients. However untargeted proteomics of the olfactory cleft mucus may not be an applicable approach to develop biomarkers for olfactory disorders. Targeted analyses of distinct proteins known to be involved in olfactory perception but not detected by our approach, e.g. odorant binding proteins, may provide more information regarding pathophysiology of olfactory diseases.
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