scholarly journals Odorant Binding Protein C17 Contributes to the Response to Artemisia vulgaris Oil in Tribolium castaneum

2021 ◽  
Vol 3 ◽  
Author(s):  
Shan-Shan Gao ◽  
Rui-Min Li ◽  
Shuang Xue ◽  
Yuan-Chen Zhang ◽  
Yong-Lei Zhang ◽  
...  
Keyword(s):  
Tribolium Castaneum ◽  
Expression Profile ◽  
Developmental Stages ◽  
Fat Body ◽  
Profile Analysis ◽  
Control Group ◽  
Contact Toxicity ◽  
Artemisia Vulgaris ◽  
Plant Oil ◽  
Odorant Binding

The red flour beetle, Tribolium castaneum (T. castaneum), generates great financial losses to the grain storage and food processing industries. Previous studies have shown that essential oil (EO) from Artemisia vulgaris (A. vulgaris) has strong contact toxicity to larvae of the beetle, and odorant-binding proteins (OBPs) contribute to the defense of larvae against A. vulgaris. However, the functions of OBPs in insects defending against plant oil is still not clear. Here, expression of one OBP gene, TcOBPC17, was significantly induced 12–72 h after EO exposure. Furthermore, compared to the control group, RNA interference (RNAi) against TcOBPC17 resulted in a higher mortality rate after EO treatment, which suggests that TcOBPC17 involves in the defense against EO and induces a declining sensitivity to EO. In addition, the tissue expression profile analysis revealed that the expression of TcOBPC17 was more abundant in the metabolic detoxification organs of the head, fat body, epidermis, and hemolymph than in other larval tissue. The expression profile of developmental stages showed that TcOBPC17 had a higher level in early and late adult stages than in other developmental stages. Taken together, these results suggest that TcOBPC17 could participate in the sequestration process of exogenous toxicants in T. castaneum larvae.

Knockdown of Uridine Diphosphate Glucosyltransferase 86Dg Enhances Susceptibility of Tribolium castaneum (Coleoptera: Tenebrionidae) to Artemisia vulgaris (Asterales: Asteraceae) Essential Oil

2021 ◽  
Author(s):  
Shanshan Gao ◽  
Haidi Sun ◽  
Jiahao Zhang ◽  
Yonglei Zhang ◽  
Peipei Sun ◽  
...  
Keyword(s):  
Essential Oil ◽  
Tribolium Castaneum ◽  
Expression Profile ◽  
Fat Body ◽  
Detoxification Enzymes ◽  
Developmental Expression ◽  
Contact Toxicity ◽  
Uridine Diphosphate ◽  
Artemisia Vulgaris ◽  
Coleoptera Tenebrionidae

Abstract Uridine diphosphate glucosyltransferases (UGTs), which are phase II detoxification enzymes, are found in various organisms. These enzymes play an important role in the detoxification mechanisms of plant allelopathy and in insects. Artemisia vulgaris L. (Asterales: Asteraceae: Artemisia) essential oil has strong contact toxicity to Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) larvae. However, the effect of A. vulgaris essential oil on UGTs is unclear. In this study, A. vulgaris essential oil was shown to significantly induce the expression of the TcUgt86Dg transcript. Furthermore, treatment of TcUgt86Dg-silenced individuals with A. vulgaris essential oil resulted in higher mortality than for the control individuals, indicating that TcUgt86Dg is involved in detoxification of A. vulgaris essential oil in T. castaneum. The developmental expression profile showed that the expression of TcUgt86Dg in late adults was higher than in other developmental stages. Furthermore, the expression profile in adult tissues revealed higher expression of TcUgt86Dg in the head, antenna, fat body, and accessory gland than in other tissues. These data show that TcUgt86Dg may be involved in the metabolism of exogenous toxins by T. castaneum; thus, our results have elucidated one possible mechanism of resistance to A. vulgaris essential oil and provide a theoretical basis for a control scheme for T. castaneum.

scholarly journals An Expanded Survey of the Moth PBP/GOBP Clade in Bombyx mori: New Insight into Expression and Functional Roles

2021 ◽  
Vol 12 ◽  
Author(s):  
Xia Guo ◽  
Ning Xuan ◽  
Guoxia Liu ◽  
Hongyan Xie ◽  
Qinian Lou ◽  
...  
Keyword(s):  
Bombyx Mori ◽  
Expression Profile ◽  
Developmental Stages ◽  
Fat Body ◽  
Profile Analysis ◽  
The Elderly ◽  
Docking Studies ◽  
Ligand Docking ◽  
Elderly Adult ◽  
Adult Age

We studied the expression profile and ontogeny (from the egg stage through the larval stages and pupal stages, to the elderly adult age) of four OBPs from the silkworm moth Bombyx mori. We first showed that male responsiveness to female sex pheromone in the silkworm moth B. mori does not depend on age variation; whereas the expression of BmorPBP1, BmorPBP2, BmorGOBP1, and BmorGOBP2 varies with age. The expression profile analysis revealed that the studied OBPs are expressed in non-olfactory tissues at different developmental stages. In addition, we tested the effect of insecticide exposure on the expression of the four OBPs studied. Exposure to a toxic macrolide insecticide endectocide molecule (abamectin) led to the modulated expression of all four genes in different tissues. The higher expression of OBPs was detected in metabolic tissues, such as the thorax, gut, and fat body. All these data strongly suggest some alternative functions for these proteins other than olfaction. Finally, we carried out ligand docking studies and reported that PBP1 and GOBP2 have the capacity of binding vitamin K1 and multiple different vitamins.

scholarly journals Comparative Expression Profile Analysis of Apoptosis-Related miRNA and Its Target Gene in Leishmania major Infected Macrophages

2020 ◽  
Author(s):  
Zohreh LASJERDI ◽  
Hossein GHANBARIAN ◽  
Samira MOHAMMADI YEGANEH ◽  
Seyyed Javad SEYYED TABAEI ◽  
Mehdi MOHEBALI ◽  
...  
Keyword(s):  
Gene Expression ◽  
Expression Profile ◽  
Target Gene ◽  
Leishmania Major ◽  
Profile Analysis ◽  
Host Cells ◽  
Control Group ◽  
Apoptosis Pathway ◽  
Significant Difference ◽  
Microarray Expression

Background: Cutaneous Leishmaniasis (CL) is an emerging uncontrollable and neglected infectious disease worldwide including Iran. The aim of this study was to investigate the expression profile of apoptosis- related miRNA and its target gene in macrophages. Methods: This study was carried out in the Department of Medical Parasitology and Mycology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran from January 2016 to November 2018. Applying literature reviews, bioinformatics software, and microarray expression analysis, we selected miRNA-24-3p interfering in apoptosis pathway. The expression profile of this miRNA and target gene were investigated in Leishmania major (MRHO/IR/75/ER)-infected primary and RAW 264.7 macrophages (IBRC-C10072) compared with non-infected macrophages (control group) using quantitative Real-time PCR. Results: Results of bioinformatics analysis showed that miR-24-3p as anti-apoptotic miRNA inhibits pro-apoptotic genes (Caspases 3 and 7). Microarray expression data presented in Gene Expression Omnibus (GEO) revealed a significant difference in the expression level of selected miRNA and its target gene between two groups. QRT-PCR results showed that the expression of miR-24-3p was upregulated in L. major infectioned macrophages that approved the results of bioinformatics and microarray analysis. Conclusion: Parasite can alter miRNAs expression pattern in the host cells to establish infection and its survival. Alteration in miRNAs levels likely plays an important role in regulating macrophage functions following L. major infection. These results could highlight current understanding and new insights concerning the gene expression in macrophages during leishmaniasis and will help to development of novel strategies for control and treatment of CL.

scholarly journals Evaluation of the Efficacy of Some Plant Oil Extracts in the Management of Tribolium castaneum (Herbst)

2021 ◽  
pp. 1-10
Author(s):  
P. O. Ukatu ◽  
L. J. Agah ◽  
E. D. Elemi ◽  
M. Agenyi ◽  
M. U. Agim ◽  
...  
Keyword(s):  
Essential Oils ◽  
Tribolium Castaneum ◽  
Azadirachta Indica ◽  
Jatropha Curcas ◽  
Contact Toxicity ◽  
Stored Products ◽  
Effective Management ◽  
Plant Oil

Four-way olfactometer was used to evaluate Laboratory repellency activities of Azadirachta indica, Jatropha curcas and Dennitia tripetala oil extracts on Tribolium castaneum at 10µl of each oil. Each arm of the olfactometer served as treatment arm with the 3 arms accommodating the 3 test substances, respectively and the 4th arm as control. Various concentrations (1, 2 and 3% V/V) of the essential oils were evaluated for fumigant and contact toxicity against T. castaneum at 8, 16 and 24 hours durations. The results obtained showed that T. castaneum spent significantly (p<0.05) more time (min) in the control arm than the 3 arms accommodating the essential oils. Similarly, significantly (p<0.05) more number of entries were made by the insect into the control arm compared with the test arms. The application of the essential oils significantly (p<0.05) caused higher mortality at 8, 16 and 24hrs than the control for both fumigant and contact tests. The mortality of the T. castaneum increased with increase in the concentration of the essential oils. The 3% concentrations of the oil extracts significantly caused the highest mortality, 67.23±8.72, 69.22± 18.74 and 79.55±9.29% by A. indica, D. tripetala and J. curcas, respectively after 24 hours application in fumigant test. The result also indicated that the contact application of A. indica, D. tripetala and J. curcas at 3% concentrations resulted in 63.07±6.55, 70.10±2.51 and 67.4±4.06% mortality of T. castaneum, respectively. The results suggest that the oil extracts from A. indica, J. curcas and D. tripetala can be used for effective management of T. castaneum infesting stored products.

scholarly journals Gene Discovery and Expression Profile Analysis through Sequencing of Expressed Sequence Tags from Different Developmental Stages of the Chytridiomycete Blastocladiella emersonii

2005 ◽  
Vol 4 (2) ◽  
pp. 455-464 ◽  
Author(s):  
Karina F. Ribichich ◽  
Silvia M. Salem-Izacc ◽  
Raphaela C. Georg ◽  
Ricardo Z. N. Vêncio ◽  
Luci D. Navarro ◽  
...  
Keyword(s):  
Life Cycle ◽  
Expression Profile ◽  
Expressed Sequence Tags ◽  
Developmental Stages ◽  
Profile Analysis ◽  
Protein Biosynthesis ◽  
Northern Analysis ◽  
Cdna Clones ◽  
Blastocladiella Emersonii ◽  
Expressed Sequence

ABSTRACT Blastocladiella emersonii is an aquatic fungus of the chytridiomycete class which diverged early from the fungal lineage and is notable for the morphogenetic processes which occur during its life cycle. Its particular taxonomic position makes this fungus an interesting system to be considered when investigating phylogenetic relationships and studying the biology of lower fungi. To contribute to the understanding of the complexity of the B. emersonii genome, we present here a survey of expressed sequence tags (ESTs) from various stages of the fungal development. Nearly 20,000 cDNA clones from 10 different libraries were partially sequenced from their 5′ end, yielding 16,984 high-quality ESTs. These ESTs were assembled into 4,873 putative transcripts, of which 48% presented no matches with existing sequences in public databases. As a result of Gene Ontology (GO) project annotation, 1,680 ESTs (35%) were classified into biological processes of the GO structure, with transcription and RNA processing, protein biosynthesis, and transport as prevalent processes. We also report full-length sequences, useful for construction of molecular phylogenies, and several ESTs that showed high similarity with known proteins, some of which were not previously described in fungi. Furthermore, we analyzed the expression profile (digital Northern analysis) of each transcript throughout the life cycle of the fungus using Bayesian statistics. The in silico approach was validated by Northern blot analysis with good agreement between the two methodologies.

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