1
|
Larsson Herrera S, Rikk P, Köblös G, Szelényi MO, Molnár BP, Dekker T, Tasin M. Designing a species-selective lure based on microbial volatiles to target Lobesia botrana. Sci Rep 2020; 10:6512. [PMID: 32300184 PMCID: PMC7162901 DOI: 10.1038/s41598-020-63088-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/25/2020] [Indexed: 11/21/2022] Open
Abstract
Sustainable, low impact control methods, including mating disruption and microbial insecticides against L. botrana have been available for decades. Yet, successful implementation has been restricted to only a few grapevine districts in the world. A limiting factor is the lack of a female attractant to either monitor or control the damaging sex. Volatile attractants for both female and male insects can be used to assess when L. botrana populations exceed economic thresholds, and to decrease the use of synthetic pesticides within both conventional and pheromone programs. Rather than using host-plant volatiles, which are readily masked by background volatiles released by the main crop, we tested the attractiveness of volatiles that signify microbial breakdown and more likely stand out against the background odour. A two-component blend of 2-phenylethanol (2-PET) and acetic acid (AA) caught significant numbers of both sexes. Catches increased with AA and, to a minimal extent, 2-PET loads. However, a higher load of 2-PET also increased bycatches, especially of Lepidoptera and Neuroptera. Major (ethanol, ethyl acetate, 3-methyl-1-butanol) or minor (esters, aldehydes, alcohols and a ketone) fermentation volatiles, did surprisingly not improve the attraction of L. botrana compared to the binary blend of 2-PET and AA alone, but strongly increased bycatches. The most attractive lure may thus not be the best choice in terms of specificity. We suggest that future research papers always disclose all bycatches to permit evaluation of lures in terms of sustainability.
Collapse
Affiliation(s)
| | - Péter Rikk
- Plant Protection Institute, Centre for Agricultural Research, Budapest, Hungary
| | - Gabriella Köblös
- Plant Protection Institute, Centre for Agricultural Research, Budapest, Hungary
| | | | - Béla Péter Molnár
- Plant Protection Institute, Centre for Agricultural Research, Budapest, Hungary
| | - Teun Dekker
- SLU, Department of Plant Protection Biology, 230 53, Alnarp, Sweden
| | - Marco Tasin
- SLU, Department of Plant Protection Biology, 230 53, Alnarp, Sweden
| |
Collapse
|
2
|
Köblös G, François MC, Monsempes C, Montagné N, Fónagy A, Jacquin-Joly E. Molecular Characterization of MbraOR16, a Candidate Sex Pheromone Receptor in Mamestra brassicae (Lepidoptera: Noctuidae). J Insect Sci 2018; 18:5106220. [PMID: 30247742 PMCID: PMC6151874 DOI: 10.1093/jisesa/iey090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 06/08/2023]
Abstract
Sex pheromone communication in Lepidoptera has long been a valuable model system for studying fundamental aspects of olfaction and its study has led to the establishment of environmental-friendly pest control strategies. The cabbage moth, Mamestra brassicae (Linnaeus) (Lepidoptera: Noctuidae), is a major pest of Cruciferous vegetables in Europe and Asia. Its sex pheromone has been characterized and is currently used as a lure to trap males; however, nothing is known about the molecular mechanisms of sex pheromone reception in male antennae. Using homology cloning and rapid amplification of cDNA ends-PCR strategies, we identified the first candidate pheromone receptor in this species. The transcript was specifically expressed in the antennae with a strong male bias. In situ hybridization experiments within the antennae revealed that the receptor-expressing cells were closely associated with the olfactory structures, especially the long trichoid sensilla known to be pheromone-sensitive. The deduced protein is predicted to adopt a seven-transmembrane structure, a hallmark of insect odorant receptors, and phylogenetically clustered in a clade that grouped a majority of the Lepidoptera pheromone receptors characterized to date. Taken together, our data support identification of a candidate pheromone receptor and provides a basis for better understanding how this species detects a signal critical for reproduction.
Collapse
Affiliation(s)
- Gabriella Köblös
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Marie-Christine François
- Inra, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Diderot, Institute of Ecology and Environmental Sciences of Paris, Paris and Versailles, France
| | - Christelle Monsempes
- Inra, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Diderot, Institute of Ecology and Environmental Sciences of Paris, Paris and Versailles, France
| | - Nicolas Montagné
- Inra, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Diderot, Institute of Ecology and Environmental Sciences of Paris, Paris and Versailles, France
| | - Adrien Fónagy
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Emmanuelle Jacquin-Joly
- Inra, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Diderot, Institute of Ecology and Environmental Sciences of Paris, Paris and Versailles, France
| |
Collapse
|
3
|
Fodor J, Hull JJ, Köblös G, Jacquin-Joly E, Szlanka T, Fónagy A. Identification and functional characterization of the pheromone biosynthesis activating neuropeptide receptor isoforms from Mamestra brassicae. Gen Comp Endocrinol 2018; 258:60-69. [PMID: 28579335 DOI: 10.1016/j.ygcen.2017.05.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/26/2017] [Accepted: 05/31/2017] [Indexed: 11/19/2022]
Abstract
In most moth species, including Mamestra brassicae, pheromone biosynthesis activating neuropeptide (PBAN) regulates pheromone production. Generally, PBAN acts directly on the pheromone gland (PG) cells via its specific G protein-coupled receptor (i.e. PBANR) with Ca2+ as a second messenger. In this study, we identified cDNAs encoding three variants (A, B and C) of the M. brassicae PBANR (Mambr-PBANR). The full-length coding sequences were transiently expressed in cultured Trichoplusia ni cells and Sf9 cells for functional characterization. All three isoforms dose-dependently mobilized extracellular Ca2+ in response to PBAN analogs with Mambr-PBANR-C exhibiting the greatest sensitivity. Fluorescent confocal microscopy imaging studies demonstrated binding of a rhodamine red-labeled ligand (RR10CPBAN) to all three Mambr-PBANR isoforms. RR10CPBAN binding did not trigger ligand-induced internalization in cells expressing PBANR-A, but did in cells expressing the PBANR-B and -C isoforms. Furthermore, activation of the PBANR-B and -C isoforms with the 18 amino acid Mambr-pheromonotropin resulted in co-localization with a Drosophila melanogaster arrestin homolog (Kurtz), whereas stimulation with an unrelated peptide had no effect. PCR-based profiling of the three transcripts revealed a basal level of expression throughout development with a dramatic increase in PG transcripts from the day of adult emergence with PBANR-C being the most abundant.
Collapse
Affiliation(s)
- József Fodor
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, H-1022 Budapest, Hungary
| | - J Joe Hull
- Agricultural Research Service, United States Department of Agriculture, Arid Land Agricultural Research Center, Maricopa, AZ, USA
| | - Gabriella Köblös
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, H-1022 Budapest, Hungary.
| | - Emmanuelle Jacquin-Joly
- INRA iEES-Paris, Institute of Ecology and Environmental Sciences, Route de Saint-Cyr, Cedex 78026 Versailles, France
| | - Tamás Szlanka
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary
| | - Adrien Fónagy
- Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, H-1022 Budapest, Hungary
| |
Collapse
|
4
|
Köblös G, Dankó T, Sipos K, Geiger Á, Szlanka T, Fodor J, Fónagy A. The regulation of Δ11-desaturase gene expression in the pheromone gland of Mamestra brassicae (Lepidoptera; Noctuidae) during pheromonogenesis. Gen Comp Endocrinol 2015; 221:217-27. [PMID: 25796477 DOI: 10.1016/j.ygcen.2015.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/27/2015] [Accepted: 03/06/2015] [Indexed: 11/20/2022]
Abstract
Cabbage moth (Mamestra brassicae) females produce sex pheromones to attract conspecific males. In our M. brassicae colony, the pheromone blend is composed of Z11-hexadecenyl acetate (Z11-16Ac) and hexadecyl acetate (16Ac) in a 93:7 ratio. A fatty acyl Δ11-desaturase is involved in the production of the main pheromone component. The release of Pheromone Biosynthesis Activating Neuropeptide (PBAN) regulates the pheromone production in the pheromone gland (PG). We cloned a cDNA encoding the MambrΔ11-desaturase and analyzed its expression profile over time in M. brassicae tissues. Transcript levels of the Δ11-desaturase in larvae, pupal PGs, fat body, brain and muscle tissues were <0.1% of that in female PGs, whereas expression in male genitalia was 2%. In the PGs of virgin females the expression level increased continuously from eclosion to the end of the 1st day when it reached a plateau without further significant fluctuation up to the 8th day. In contrast, we recorded a characteristic daily rhythmicity in pheromone production with a maximum around 200 ng Z11-16Ac/PG. In some experiments, females were decapitated to prevent PBAN release and thereby inhibit pheromone production, which remarkably increased after treatment with Mambr-Pheromonotropin. Further experiments revealed that mating resulted in a significant suppression of pheromone production. However, expression of the Δ11-desaturase was not affected by any of these interventions, suggesting that it's not regulated by PBAN. Fluorescent microscopy was used to study the potential role of lipid droplets during pheromone production, however, no lipid droplets were identified indicating that pheromonogenesis is regulated via de novo fatty acid synthesis.
Collapse
Affiliation(s)
- Gabriella Köblös
- Department of Pathophysiology, Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Herman Ottó út 15, H-1022 Budapest, Hungary
| | - Tamás Dankó
- Ecotoxicology and Environmental Analysis Group, Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Herman Ottó út 15, H-1022 Budapest, Hungary
| | - Kitti Sipos
- Ecotoxicology and Environmental Analysis Group, Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Herman Ottó út 15, H-1022 Budapest, Hungary
| | - Ágnes Geiger
- Department of Entomology, Faculty of Horticultural Science, Corvinus University of Budapest, H-1118 Ménesi út, 44, H-1118 Budapest, Hungary
| | - Tamás Szlanka
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - József Fodor
- Department of Pathophysiology, Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Herman Ottó út 15, H-1022 Budapest, Hungary
| | - Adrien Fónagy
- Ecotoxicology and Environmental Analysis Group, Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Herman Ottó út 15, H-1022 Budapest, Hungary.
| |
Collapse
|
5
|
Köblös G, Andrikovics H, Prohászka Z, Tordai A, Váradi A, Arányi T. The R1141X loss-of-function mutation of the ABCC6 gene is a strong genetic risk factor for coronary artery disease. Genet Test Mol Biomarkers 2010; 14:75-8. [PMID: 19929409 DOI: 10.1089/gtmb.2009.0094] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Loss-of-function mutations of ABCC6 cause pseudoxanthoma elasticum (PXE). This Mendelian disorder is characterized by elastic calcification leading to dermal, ocular, and cardiovascular symptoms like coronary artery disease (CAD) and stroke. Although PXE is a recessive disease, microscopic dermal lesions, serum alterations, and higher anecdotal incidence of stroke or CAD among carriers were reported. Here we investigated the association of the c.3421C>T loss-of-function mutation of ABCC6 and CAD and stroke. A previous study demonstrated the association of the c.3421C>T mutation with CAD; however, the frequency found in the control population was unexpectedly high, contradicting, thus, the prevalence of PXE. In the present study, genomic DNA from 749 healthy blood donors was used as control, while 363 and 361 patients suffering from stroke and CAD were investigated, respectively. One carrier was found in our control group, which is in accordance with the reported prevalence of this mutation. No significant association was found between carrier status and stroke in our cohort. In contrast, a significant association of carrier status and CAD was observed (5/361 carriers: p = 0.016, odds ratio [OR] = 10.5). We propose that carriers of ABCC6 loss-of-function mutations benefit from CAD prevention therapy.
Collapse
Affiliation(s)
- Gabriella Köblös
- Institute of Enzymology, Hungarian Academy of Sciences, Budapest, Hungary
| | | | | | | | | | | |
Collapse
|
6
|
de Boussac H, Ratajewski M, Sachrajda I, Köblös G, Tordai A, Pulaski L, Buday L, Váradi A, Arányi T. The ERK1/2-hepatocyte nuclear factor 4alpha axis regulates human ABCC6 gene expression in hepatocytes. J Biol Chem 2010; 285:22800-8. [PMID: 20463007 DOI: 10.1074/jbc.m110.105593] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
ABCC6 mutations are responsible for the development of pseudoxanthoma elasticum, a rare recessive disease characterized by calcification of elastic fibers. Although ABCC6 is mainly expressed in the liver the disease has dermatologic, ocular, and cardiovascular symptoms. We investigated the transcriptional regulation of the gene and observed that hepatocyte growth factor (HGF) inhibits its expression in HepG2 cells via the activation of ERK1/2. Similarly, other factors activating the cascade also inhibited ABCC6 expression. We identified the ERK1/2 response element in the proximal promoter by luciferase reporter gene assays. This site overlapped with a region conferring the tissue-specific expression pattern to the gene and with a putative hepatocyte nuclear factor 4alpha (HNF4alpha) binding site. We demonstrated that HNF4alpha regulates the expression of ABCC6, acts through the putative binding site, and determines its cell type-specific expression. We also showed that HNF4alpha is inhibited by the activation of the ERK1/2 cascade. In conclusion we describe here the first regulatory pathway of ABCC6 expression showing that the ERK1/2-HNF4alpha axis has an important role in regulation of the gene.
Collapse
Affiliation(s)
- Hugues de Boussac
- Institute of Enzymology, Hungarian Academy of Sciences, Karolina ut 29, 1113 Budapest, Hungary
| | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Bors A, Ribiczey P, Köblös G, Brózik A, Ujfaludi Z, Magócsi M, Váradi A, Tordai A, Kovács T, Arányi T. External cell control polymerase chain reaction: replacing internal standards with an unbiased strategy for quantitative polymerase chain reaction normalization. Anal Biochem 2007; 372:261-3. [PMID: 17945177 DOI: 10.1016/j.ab.2007.08.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2007] [Revised: 08/10/2007] [Accepted: 08/20/2007] [Indexed: 10/22/2022]
Affiliation(s)
- András Bors
- Institute of Haematology and Immunology, National Medical Centre, Diószegi u. 64, 1113 Budapest, Hungary
| | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Ozvegy-Laczka C, Köblös G, Sarkadi B, Váradi A. Single amino acid (482) variants of the ABCG2 multidrug transporter: major differences in transport capacity and substrate recognition. Biochim Biophys Acta 2005; 1668:53-63. [PMID: 15670731 DOI: 10.1016/j.bbamem.2004.11.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2004] [Revised: 10/19/2004] [Accepted: 11/10/2004] [Indexed: 11/23/2022]
Abstract
The human ABCG2 protein is an ATP binding cassette half-transporter, which protects our cells and tissues against various xenobiotics, while overexpression of ABCG2 in tumor cells confers multidrug resistance. It has been documented that single amino acid changes at position 482 resulted in altered drug resistance and transport capacity. In this study, we have generated nine Arg-482 mutants (G, I, M, S, T, D, N, K, Y) of ABCG2, and expressed them in insect cells. All ABCG2 variants showed cell surface expression and, in isolated membranes, an ABCG2-specific ATPase activity. When methotrexate accumulation was measured in inside-out membrane vesicles, this transport was supported only by the wild-type ABCG2. In intact cells, mitoxantrone was transported by all ABCG2 variants, except by R482K. Rhodamine 123 was extruded by most of the mutants, except by R482K, Y and by wild-type ABCG2. Hoechst 33342 was pumped out from cells expressing the wild-type and all Arg-482 variants, but not from those expressing R482K and Y. Our study demonstrates that the substrate specificity of the Arg (wild-type) form is unique and that amino acid replacements at position 482 induce major alterations in both the transport activity and substrate specificity of this protein.
Collapse
Affiliation(s)
- Csilla Ozvegy-Laczka
- National Medical Center, Institute of Haematology and Immunology, Membrane Research Group of the Hungarian Academy of Sciences, Diószegi út 64., H-1113 Budapest, Hungary
| | | | | | | |
Collapse
|
9
|
Ozvegy-Laczka C, Várady G, Köblös G, Ujhelly O, Cervenak J, Schuetz JD, Sorrentino BP, Koomen GJ, Váradi A, Német K, Sarkadi B. Function-dependent conformational changes of the ABCG2 multidrug transporter modify its interaction with a monoclonal antibody on the cell surface. J Biol Chem 2004; 280:4219-27. [PMID: 15557326 DOI: 10.1074/jbc.m411338200] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The human ABCG2 protein is an important primary active transporter for hydrophobic compounds in several cell types, and its overexpression causes multidrug resistance in tumors. A monoclonal antibody (5D3) recognizes this protein on the cell surface. In ABCG2-expressing cells 5D3 antibody showed a saturable labeling and inhibited ABCG2 transport and ATPase function. However, at low antibody concentrations 5D3 binding to intact cells depended on the actual conformation of the ABCG2 protein. ATP depletion or the addition of the ABCG2 inhibitor Ko143 significantly increased, whereas the vanadate-induced arrest of ABCG2 strongly decreased 5D3 binding. The binding of the 5D3 antibody to a non-functional ABCG2 catalytic center mutant (K86M) in intact cells was not affected by the addition of vanadate but still increased with the addition of Ko143. In isolated membrane fragments the ligand modulation of 5D3 binding to ABCG2 could be analyzed in detail. In this case 5D3 binding was maximum in the presence of ATP, ADP, or Ko143, whereas the non-hydrolysable ATP analog, adenosine 5'-(beta,gamma-imido)triphosphate (AMP-PNP), and nucleotide trapping by vanadate decreased antibody binding. In membranes expressing the ABCG2-K86M mutant, ATP, ADP, and AMP-PNP decreased, whereas Ko143 increased 5D3 binding. Based on these data we suggest that the 5D3 antibody can be used as a sensitive tool to reveal intramolecular changes, reflecting ATP binding, the formation of a catalytic intermediate, or substrate inhibition within the transport cycle of the ABCG2 protein.
Collapse
Affiliation(s)
- Csilla Ozvegy-Laczka
- National Medical Center, Institute of Haematology and Immunology, Membrane Research Group and Hungarian Academy of Sciences, 1113 Budapest, Hungary
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|