Volatile organic compounds from Starmerella bacillaris to control gray mold on apples and modulate cider aroma profile

Food Microbiology, Journal Year: 2020, Volume and Issue: 89, P. 103446 - 103446

Published: Jan. 27, 2020

Language: Английский

---

Recent trends in insect gut immunity

Frontiers in Immunology, Journal Year: 2023, Volume and Issue: 14

Published: Dec. 18, 2023

The gut is a crucial organ in insect defense against various pathogens and harmful substances their environment diet. Distinct compartments possess unique functionalities contributing to physiological processes, including immunity. gut’s cellular composition vital for humoral peritrophic membrane, mucus layer, lumen, microvilli, cells provide essential support activating regulating immune mechanisms. These components also secrete molecules enzymes that are imperative activities. Additionally, the microbiota initiates signaling pathways produces vitamins minerals help maintain homeostasis. activated within when insects ingest or hazardous materials. pathway induced depends on infection pathogen type; include deficiency (imd), Toll, JAK/STAT, Duox-ROS, JNK/FOXO regulatory pathways. produce different antimicrobial peptides (AMPs) Furthermore, mechanisms regulate recovery following infection. Although some questions regarding immunity species require additional study, this review provides insights into structure composition, commensal microorganism roles Drosophila melanogaster Tenebrio molitor life cycles, involved systems, post-infection through

Language: Английский

---

Factors influencing oviposition behaviour of the invasive pest, Drosophila suzukii, derived from interactions with other Drosophila species: potential applications for control

Pest Management Science, Journal Year: 2023, Volume and Issue: 79(11), P. 4132 - 4139

Published: July 30, 2023

Drosophila suzukii (Matsumura) or spotted wing is a worldwide invasive pest of soft- and stone-fruit production. Female D. lay their eggs in ripening fruit the hatched larvae damage from inside, rendering it unmarketable causing significant economic loss. Current methods to reduce population field primarily rely on chemical insecticides which are not sustainable long-term solution increase risk resistance developing. Several studies demonstrate that when encounter coexist with other food source, this usually disadvantage suzukii, leading reduced oviposition increased larval mortality. These effects have potential be exploited management perspective. In review we summarise recent research articles focusing interspecific interactions between species aimed at understanding how drives behaviour. Potential semiochemical microbiome impacts postulated as determinants Development control practices reducing populations deterring them laying by utilising factors drive behaviour discussed. © 2023 The Authors. Pest Management Science published John Wiley & Sons Ltd behalf Society Chemical Industry.

Language: Английский

---

A non-overwintering urban population of the African fig fly (Diptera: Drosophilidae) impacts the reproductive output of locally adapted fruit flies

Florida Entomologist, Journal Year: 2025, Volume and Issue: 108(1)

Published: Jan. 1, 2025

Abstract The African fig fly, Zaprionus indianus (Gupta) (Diptera: Drosophilidae), is a highly invasive species originally from tropical Africa that has rapidly spread across the Americas, first arriving via Brazil and subsequently Florida. Monitoring efforts have primarily focused on orchards which might underestimate actual of Z. because may also thrive in natural habitats, urban areas, other unmanaged environments are not routinely surveyed. This study investigates ability to establish non-overwintering populations its potential impact local Drosophila melanogaster (Meigen) Drosophilidae) populations. Over 41 weeks, presence population dynamics were monitored residential area Memphis, Tennessee, alongside D. . examined effects interspecific competition between these two through competitive breeding assays. Results show successfully established stable during summer fall 2023 but failed survive winter as was likely eradicated cold weather. Additionally, found reduce reproductive output females, although less severe compared intraspecific among These findings highlight need for increased monitoring areas North America, such serve reservoirs facilitating this pest into agricultural sites.

Language: Английский

---

Yeast and fruit fly mutual niche construction and antagonism against mould

Functional Ecology, Journal Year: 2022, Volume and Issue: 36(7), P. 1639 - 1654

Published: April 9, 2022

Abstract A goal in insect–microbe ecology is to understand the mechanisms regulating species associations and mutualistic interactions. The spotted wing drosophila Drosophila suzukii develops ripening fruit, unlike other drosophilids that typically feed on overripe associated with yeast Hanseniaspora uvarum . We hypothesized D. H. engage niche construction leading a relation, facilitating exploitation of fruit berries as larval substrate. show proliferates both ripe unripe raspberries, mediates attraction larvae adult flies, enhances egg‐laying mated females sufficient food substrate support development. Moreover, suppresses antagonistic grey mould, Botrytis cinerea collaboration D larvae, produces less ethanol than baker's yeast. thus creates favourable conditions for development, which susceptible mould. , hand, vectors suitable substrates such where feeding activity growth Larval also helps suppress B. otherwise outcompetes raspberry, absence fly larvae. In conclusion, development berries, promotes dispersal berries. Yeast modify their shared habitat reciprocal mutual interaction. Read free Plain Language Summary this article Journal blog.

Language: Английский

---

Microbiome Structure of a Wild Drosophila Community along Tropical Elevational Gradients and Comparison to Laboratory Lines

Applied and Environmental Microbiology, Journal Year: 2023, Volume and Issue: 89(5)

Published: May 8, 2023

Bacteria form microbial communities inside most higher-level organisms, but we know little about how the microbiome varies along environmental gradients and between natural host populations laboratory colonies. To explore such effects on insect-associated microbiomes, studied gut in four Drosophila species over two mountain tropical Australia.

Language: Английский

---

The influence of Acetobacter pomorum bacteria on the developmental progression of Drosophila suzukii via gluconic acid secretion

Molecular Ecology, Journal Year: 2023, Volume and Issue: 33(2)

Published: Nov. 10, 2023

Abstract Insects are rich in various microorganisms, which play diverse roles affecting host biology. Although most Drosophila species prefer rotten fruits, the agricultural pest suzukii attacks ripening fruits before they harvested. We have reported that microbiota has positive and negative impacts on D. nutrient‐poor ‐rich diets, respectively. On microbes provide protein to facilitate larval development. But how impede development nutrient‐rich diets is unknown. Here we report Acetobacter pomorum (Apo), a commensal bacterium many rotting fruit, several detrimental effects . Feeding larvae containing live Apo significantly delayed reduced body weight of emerged adults. induced immune responses downregulated genes digestion juvenile hormone metabolism. Knockdown these germ‐free reproduced Apo‐like weakened phenotypes. was confirmed secrete substantial amounts gluconic acid. Adding acid diet hindered growth decreased adult weight. Moreover, dose adversely affected did not negatively affect melanogaster , suggesting less tolerant than Taken together, findings indicate by acid, may explain why it prefers fruit over Apo‐rich fruit. These results show an insect's tolerance can influence its ecological niche.

Language: Английский

---

Gut fungal community and its probiotic effect onBactrocera dorsalis

Insect Science, Journal Year: 2021, Volume and Issue: 29(4), P. 1145 - 1158

Published: Dec. 17, 2021

The oriental fruit fly, Bactrocera dorsalis (Diptera: Tephritidae) is a destructive horticultural pest which causes considerable economic losses every year. A collection of microorganisms live within the B. gut, and they are involved in its development, physiology, behavior. However, knowledge regarding composition function gut mycobiota still limited. Here, we comprehensively characterized across different developmental stages. High-throughput sequencing results showed significant difference fungal species abundance diversity among stages dorsalis. Quantitative polymerase chain reaction culture-dependent methods that yeast was dominant group larval stage. We isolated 13 strains from found GF (germ-free) larvae mono-associated with strain Hanseniaspora uvarum developed faster than those other tested strains. Supplementing diet H. fully rescued shortened time, increased adult wing lengths, as well body sizes weights both pupae adults. Thus, our study highlights close interactions between fungi, especially uvarum, These findings can be applied to sterile insect technique program promote host development during mass rearing.

Language: Английский

---

How gut microbiome interactions affect nutritional traits of Drosophila melanogaster

Journal of Experimental Biology, Journal Year: 2020, Volume and Issue: 223(19)

Published: Oct. 1, 2020

ABSTRACT Most research on the impact of gut microbiome animal nutrition is designed to identify effects single microbial taxa and metabolites origin, without considering potentially complex network interactions among co-occurring microorganisms. Here, we investigated how different associations their fermentation products affect host nutrition, using Drosophila melanogaster colonized with three microorganisms (the bacteria Acetobacter fabarum Lactobacillus brevis, yeast Hanseniaspora uvarum) in all seven possible combinations. Some traits could be attributed (e.g. yeast-mediated reduction insect development time), while other were sex specific driven by among-microbe male lipid content determined between both bacteria). Parallel analysis nutritional indices microbe-free flies administered (acetic acid, acetoin, ethanol lactic acid) revealed a consistent effect: that female reduced acetic acid. This effect was recapitulated A. fabarum, but not for any treatment females or males complements. These data suggest status strongly context dependent, respect combination associated sex. Taken together, our findings demonstrate can play critically important role determining physiological outcome host–microbiome and, likely, hosts.

Language: Английский

---

Persistence of diet effects on the microbiota of Drosophila suzukii (Diptera: Drosophilidae)

The Canadian Entomologist, Journal Year: 2020, Volume and Issue: 152(4), P. 516 - 531

Published: June 22, 2020

Abstract The insect commensal microbiota consists of prokaryotes and eukaryotes. We explored the effect diet persistence gut across generations in Drosophila suzukii (Matsumura) (Diptera: Drosophilidae). transferred subsets a single population D. to different fruit-based diets (blueberry ( Vaccinium Linnaeus; Ericaceae), raspberry Rubus Rosaceae), strawberry Fragaria × ananassa Duchesne; Rosaceae)) for three then returned them common, banana-based, diet. used 16S rDNA (Bacteria) ITS (internal transcribed spacer; Fungi) sequencing female endosymbiont-free flies identify microbiota. identified 2700 bacterial 350 fungal operational taxonomic units (OTUs); there was no correlation between number OTUs sample. Bacterial communities were dominated by Proteobacteria (especially Acetobacteraceae); Ascomycota communities. Species diversity both bacteria fungi differed among diets, but differences species-level when these control A principle coordinates analysis revealed or community first generation on fruit that diverged over next two generations; neither converged after one food. conclude changes microbiota, persist more than generation.

Language: Английский

---