Role of peptide hormones in insect gut physiology

Asrar, Rania Abou El; Cools, Dorien; Broeck, Jozef Vanden

doi:10.1016/j.cois.2020.07.004

Cited by 28 publications

(18 citation statements)

References 94 publications

(98 reference statements)

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“…Among the other genes, NlApoD3 / 7 / 8 were specifically expressed in the digestive tract, with age‐differential expression, particularly during late embryogenesis, implying that NlApoD3 / 7 / 8 might participate in metabolism, immunity, and even neuro‐related processes (Abou El Asrar et al. , 2020; Ma et al. , 2021).…”

Section: Resultsmentioning

confidence: 99%

The evolution and functional divergence of 10 Apolipoprotein D‐like genes in Nilaparvata lugens

Ren

et al. 2023

Insect Science

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Apolipoprotein D (ApoD), a member of the lipocalin superfamily of proteins, is involved in lipid transport and stress resistance. Whereas only a single copy of the ApoD gene is found in humans and some other vertebrates, there are typically several ApoD‐like genes in insects. To date, there have been relatively few studies that have examined the evolution and functional differentiation of ApoD‐like genes in insects, particularly hemi‐metabolous insects. In this study, we identified 10 ApoD‐like genes (NlApoD1−10) with distinct spatiotemporal expression patterns in Nilaparvata lugens (BPH), which is an important pest of rice. NlApoD1−10 were found to be distributed on 3 chromosomes in a tandem array of NlApoD1/2, NlApoD3−5, and NlApoD7/8, and show sequence and gene structural divergence in the coding regions, indicating that multiple gene duplication events occurred during evolution. Phylogenetic analysis revealed that NlApoD1−10 can be clustered into 5 clades, with NlApoD3−5 and NlApoD7/8 potentially evolving exclusively in the Delphacidae family. Functional screening using an RNA interference approach revealed that only NlApoD2 was essential for BPH development and survival, whereas NlApoD4/5 are highly expressed in testes, and might play roles in reproduction. Moreover, stress response analysis revealed that NlApoD3−5/9, NlApoD3−5, and NlApoD9 were up‐regulated after treatment with lipopolysaccharide, H2O2, and ultraviolet‐C, respectively, indicating their potential roles in stress resistance.

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Section: Resultsmentioning

confidence: 99%

The evolution and functional divergence of 10 Apolipoprotein D‐like genes in Nilaparvata lugens

Ren

et al. 2023

Insect Science

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“…This suggests that BSF may have first undergone environmental information transduction metabolism after UV induction to produce signaling molecules [ 32 ]. These molecules may have acted as messengers to stimulate the digestion of starch and sugars in food waste by the BSF digestive system [ 33 ]. This situation affects BSF metabolism and energy metabolism, including amino acid metabolism, lipid metabolism, and cofactor metabolism, further promoting the overall ability of BSF to produce bioactive compounds [ 34 ].…”

Section: Resultsmentioning

confidence: 99%

Food Waste Management Employing UV-Induced Black Soldier Flies: Metabolomic Analysis of Bioactive Components, Antioxidant Properties, and Antibacterial Potential

Guo

Muhmood

et al. 2022

IJERPH

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Food waste, as a major part of municipal solid waste, has been increasingly generated worldwide. Efficient and feasible utilization of this waste material for biomanufacturing is crucial to improving economic and environmental sustainability. In the present study, black soldier flies (BSF) larvae were used as carriers to treat and upcycle food waste. Larvae of the BSF were incubated with UV light for 10, 20, and 30 min at a wavelength of 257.3 nm and an intensity of 8 W. The food waste utilization efficiency, antioxidant assays, antibacterial activity, and bioactive metabolites without and with UV treatment were determined and compared. Results showed that the BSF larvae feed utilization rate was around 75.6%, 77.7%, and 71.2% after UV treatment for 10, 20, and 30 min respectively, contrasting with the non-UV induced group (73.7%). In addition, it was perceived that the UV exposure enhanced antioxidant and antimicrobial properties of BSF extracts, and the maximum values were observed after 20 min UV induction time. Moreover, UV-induced BSF extracts showed an improved metabolic profile than the control group, with a change in the amino acids, peptides, organic acids, lipids, organic oxides, and other derivatives. This change in metabolomics profile boosted environmental signaling, degradation of starch, amino acids, sugars, and peptide metabolism. It was concluded that the bioconversion of food wastes using UV-induced BSF larvae can enhance the generation of a variety of functional proteins and bioactive compounds with potent antioxidant and antimicrobial activity. However, more studies are required to exploit the efficiency of UV treatment in improving BSF’s potential for upcycling of food wastes.

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“…In Tenebrio molitor and Zophobas atratus , they have myotropic effects in the regulation of contractile activity of the heart, ejaculatory duct, oviduct and the hindgut [ 46 ]. Allatotropins ( m/z 1367.77) and allatostatins such as allatostatin-3 (ALL3_RHOPR, m/z 1846.97), identified in the haemolymph of P. melas , have inhibitory or stimulatory effects, respectively, on juvenile hormone biosynthesis in the corpora allata [ 47 ]. The role of these peptides has also been demonstrated in regulating several other functions including release of digestive enzymes in the midgut [ 48 ], myostimulation influencing the physiology of hearts in the dorsal vassel, gut, and reproductive system.…”

Section: Resultsmentioning

confidence: 99%

Mass Spectrometry-Based Peptide Profiling of Haemolymph from Pterostichus melas Exposed to Pendimethalin Herbicide

et al. 2022

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Pendimethalin-based herbicides are used worldwide for pre-emergence selective control of annual grasses and weeds in croplands. The endurance of herbicides residues in the environment has an impact on the soil biodiversity and fertility, also affecting non-target species, including terrestrial invertebrates. Carabid beetles are known as natural pest control agents in the soil food web of agroecosystems, and feed on invertebrates and weed seeds. Here, a mass spectrometry untargeted profiling of haemolymph is used to investigate Pterostichus melas metabolic response after to pendimethalin-based herbicide exposure. Mass spectrometric data are examined with statistical approaches, such as principal component analysis, for possible correlation with biological effects. Those signals with high correlation are submitted to tandem mass spectrometry to identify the associated biomarker. The time course exposure showed many interesting findings, including a significant downregulation of related to immune and defense peptides (M-lycotoxin-Ls4a, Peptide hormone 1, Paralytic peptide 2, and Serine protease inhibitor 2). Overall, the observed peptide deregulations concur with the general mechanism of uptake and elimination of toxicants reported for Arthropods.

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Role of peptide hormones in insect gut physiology

Abstract: Gut physiology is regulated by a complex interplay between neuropeptides.The gut is innervated by the central and stomatogastric nervous systems.

Cited by 28 publications

References 94 publications

The evolution and functional divergence of 10 Apolipoprotein D‐like genes in Nilaparvata lugens

The evolution and functional divergence of 10 Apolipoprotein D‐like genes in Nilaparvata lugens

Food Waste Management Employing UV-Induced Black Soldier Flies: Metabolomic Analysis of Bioactive Components, Antioxidant Properties, and Antibacterial Potential

Mass Spectrometry-Based Peptide Profiling of Haemolymph from Pterostichus melas Exposed to Pendimethalin Herbicide

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