Role of gut symbionts of insect pests: A novel target for insect-pest control

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Март 13, 2023

Insects possess beneficial and nuisance values in the context of agricultural sector human life around them. An ensemble gut symbionts assists insects to adapt diverse extreme environments occupy every available niche on earth. Microbial symbiosis helps host by supplementing necessary diet elements, providing protection from predators parasitoids through camouflage, modulation signaling pathway attain homeostasis trigger immunity against pathogens, hijacking plant pathways circumvent defence, acquiring capability degrade chemical pesticides, degradation harmful pesticides. Therefore, a microbial strategy can lead overpopulation insect pests, which drastically reduce crop yield. Some studies have demonstrated increased mortality via destruction symbionts; use antibiotics. The review summarizes various roles played microbiota pests some that been conducted pest control targeting symbionts. Manipulation or exploitation alters growth population is consequently potential target for development better strategies. Methods such as CRISPR/Cas9, RNAi combining IIT SIT increase are further discussed. In ongoing management scenario, proving be reliable, eco-friendly novel approach integrated management.

Язык: Английский

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Insect Microbial Symbionts: Ecology, Interactions, and Biological Significance

Microorganisms, Год журнала: 2023, Номер 11(11), С. 2665 - 2665

Опубликована: Окт. 30, 2023

The guts of insect pests are typical habitats for microbial colonization and the presence bacterial species inside gut confers several potential advantages to insects. These bacteria located symbiotically digestive tracts insects help in food digestion, phytotoxin breakdown, pesticide detoxification. Different shapes chemical assets gastrointestinal have a significant impact on structure makeup population. number communities system differs owing varying shape composition tracts. Due their short generation times rapid evolutionary rates, can develop numerous metabolic pathways adapt diverse ecological niches. In addition, despite hindering insecticide management programs, they still biotechnological uses, including industrial, clinical, environmental uses. This review discusses prevalent associated with guts, mode symbiotic interaction, role resistance, various other biological significance, along knowledge gaps future perspectives. practical consequences microbiome its interaction host may lead encountering mechanisms behind evolution resistance

Язык: Английский

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Insecticide Resistance and Its Management in Two Invasive Cryptic Species of Bemisia tabaci in China

International Journal of Molecular Sciences, Год журнала: 2023, Номер 24(7), С. 6048 - 6048

Опубликована: Март 23, 2023

The sweet potato whitefly Bemisia tabaci is a major agricultural pest with wide host range throughout the world. species designation for B. includes numerous distinct cryptic or biotypes. Two invasive biotypes, MEAM1 (B) and MED (Q), were found in China at end of 20th century beginning 21st century. (Q) show higher pesticide resistance levels than native strains, vary changes insecticide selection pressure. Recent studies have revealed metabolic mechanisms target site mutations strains that render them resistant to insecticides uncovered frequency these resistance-related populations China. Novel control agents, such as RNA-based pesticides nano-pesticides, achieved effective effects laboratory are expected be applied field future. In this review, we discuss developed by since their invasion into We also provide suggestions ecologically sound efficient control.

Язык: Английский

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Lactic acid bacteria modulate the CncC pathway to enhance resistance to β-cypermethrin in the oriental fruit fly

The ISME Journal, Год журнала: 2024, Номер 18(1)

Опубликована: Янв. 1, 2024

Abstract The gut microbiota of insects has been shown to regulate host detoxification enzymes. However, the potential regulatory mechanisms involved remain unknown. Here, we report that bacteria increase insecticide resistance by activating cap “n” collar isoform-C (CncC) pathway through enzymatically generated reactive oxygen species (ROS) in Bactrocera dorsalis. We demonstrated Enterococcus casseliflavus and Lactococcus lactis, two lactic acid-producing bacteria, B. dorsalis β-cypermethrin regulating cytochrome P450 (P450) enzymes α-glutathione S-transferase (GST) activities. These symbionts also induced expression CncC muscle aponeurosis fibromatosis. BdCncC knockdown led a decrease caused bacteria. Ingestion ROS scavenger vitamin C resistant strain affected BdCncC/BdKeap1/BdMafK, resulting reduced GST activity. Furthermore, feeding with E. or L. lactis showed BdNOX5 increased production, BdCncC/BdMafK genes. Moreover, acid activated ROS-associated regulation Collectively, our findings indicate symbiotic modulate intestinal pathways affecting physiological biochemistry, thus providing new insights into involvement insect microbes development resistance.

Язык: Английский

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The role of insect gut microbiota in host fitness, detoxification and nutrient supplementation

Antonie van Leeuwenhoek, Год журнала: 2024, Номер 117(1)

Опубликована: Апрель 26, 2024

Язык: Английский

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