How Insects Balance Reproductive Output and Immune Investment DOI Creative Commons
Jimena Leyria, Leonardo L. Fruttero, Pedro A. Paglione

и другие.

Insects, Год журнала: 2025, Номер 16(3), С. 311 - 311

Опубликована: Март 17, 2025

Insects face the constant challenge of balancing energy allocation between reproduction and immune responses, both which are highly energy-demanding processes. Immune challenges frequently result in decreased fecundity, reduced egg viability, delayed ovarian development. Conversely, heightened reproductive activity often suppresses functions. This trade-off has profound ecological evolutionary consequences, shaping insects’ survival, adaptation, population dynamics. The intricate interplay immunity insects is regulated by neuroendocrine endocrine systems, orchestrate resource distribution alongside other biological Key hormones, such as juvenile hormone ecdysteroids, serve central regulators, influencing responses activities. Additionally, macromolecules like vitellogenin lipophorin, primarily known for their functions yolk protein precursors lipid carriers, play crucial roles pathogen recognition transgenerational priming. Advancements molecular omics tools have unveiled complexity these regulatory mechanisms, providing new insights into how dynamically allocate resources to optimize fitness. delicate balance underscores critical strategies integration physiological systems across species. review synthesizes from life history theory, oogenesis, immunity, offering perspectives on trade-offs output investment.

Язык: Английский

A tyramine receptor gene LsTAR2 is involved in reproduction and feeding in the small brown planthopper Laodelphax striatellus DOI
Gang Xu, Liran Fu, Liang Wu

и другие.

Pesticide Biochemistry and Physiology, Год журнала: 2025, Номер 209, С. 106335 - 106335

Опубликована: Фев. 18, 2025

Язык: Английский

Процитировано

2
Signaling Pathways That Regulate the Crustacean Molting Gland DOI Creative Commons
Donald L. Mykles

Frontiers in Endocrinology, Год журнала: 2021, Номер 12

Опубликована: Июнь 21, 2021

A pair of Y-organs (YOs) are the molting glands decapod crustaceans. They synthesize and secrete steroid hormones (ecdysteroids) their activity is controlled by external internal signals. The YO transitions through four physiological states over molt cycle, which mediated molt-inhibiting hormone (MIH; basal state), mechanistic Target Rapamycin Complex 1 (mTORC1; activated Transforming Growth Factor-β (TGFβ)/Activin (committed ecdysteroid (repressed state) signaling pathways. MIH, produced in eyestalk X-organ/sinus gland complex, inhibits synthesis ecdysteroids. model for MIH organized into a cAMP/Ca

Язык: Английский

Процитировано

59
Review of molecular and biochemical responses during stress induced stimulation and hormesis in insects DOI
Rachel R. Rix, G. Christopher Cutler

The Science of The Total Environment, Год журнала: 2022, Номер 827, С. 154085 - 154085

Опубликована: Фев. 24, 2022

Язык: Английский

Процитировано

58
Understanding the Invasion, Ecological Adaptations, and Management Strategies of Bactrocera dorsalis in China: A Review DOI Creative Commons
Saleem Jaffar, Syed Arif Hussain Rizvi, Yongyue Lu

и другие.

Horticulturae, Год журнала: 2023, Номер 9(9), С. 1004 - 1004

Опубликована: Сен. 5, 2023

Bactrocera dorsalis (Hendel, 1912) (Diptera: Tephritidae), commonly known as the oriental fruit fly, is a highly destructive pest that globally infests fruits and vegetables, resulting in significant annual economic losses. Initially detected Taiwan Island, it has rapidly expanded its distribution range to various regions mainland China since 1980s, with continuous northward spread. To mitigate damage caused by this pest, extensive efforts have been undertaken comprehend ecological physiological adaptations develop management strategies. This review article provides an overview of invasion history B. China, mechanisms facilitating invasion, progress made understanding major biological characteristics. Moreover, key approaches for managing or are likely be implemented presented, including quarantine measures, monitoring procedures, physical controls, sterile insect technique, RNA interference, CRISPR-Cas-9. Finally, some suggestions future research directions provided.

Язык: Английский

Процитировано

24
Endocrine factors modulating vitellogenesis and oogenesis in insects: An update DOI
Jimena Leyria

Molecular and Cellular Endocrinology, Год журнала: 2024, Номер 587, С. 112211 - 112211

Опубликована: Март 15, 2024

Язык: Английский

Процитировано

14
Hairy and Krüppel homolog 1 Comediate the Action of Juvenile Hormone/Methoprene-Tolerant Signaling Pathway in Vitellogenesis of Spodoptera frugiperda (J.E. Smith) DOI

Shipeng Han,

Xiao-Qi Wang,

Hui Han

и другие.

Journal of Agricultural and Food Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Spodoptera frugiperda is a major migratory invasive pest and of global concern. Vitellogenesis, crucial process for population multiplication in oviparous insects, regulated by endocrine hormones. In this study, three primary responders to JH signaling, the receptor gene Met, downstream transcription factor Kr-h1 Hairy, were first cloned identified. RNA interference results showed that silencing SfMet significantly down-regulated levels SfKr-h1 SfHairy, as well key reproductive genes Vitellogenin (SfVg) (SfVgR). Similarly, SfHairy also inhibited SfVg SfVgR. Silencing SfMet, SfKr-h1, resulted blocked ovarian development significant decrease reproduction. These findings confirm Hairy comediate action JH-Met signaling pathway vitellogenesis S. frugiperda, providing new targets insights control.

Язык: Английский

Процитировано

2
The vitellogenin receptor functionality of the migratory locust depends on its phosphorylation by juvenile hormone DOI Open Access
Yu-Pu Jing, Xinpeng Wen,

Lunjie Li

и другие.

Proceedings of the National Academy of Sciences, Год журнала: 2021, Номер 118(37)

Опубликована: Сен. 7, 2021

Significance During vitellogenesis of oviparous animals, vitellogenin receptor (VgR)–mediated endocytosis is crucial for the incorporation yolk proteins into oocytes. VgR also serves as a gatekeeper vertical transmission pathogenic microbes and symbionts. Juvenile hormone (JH) acts gonadotrophic stimulates this process in many insect species, but regulatory mechanisms remain elusive. We find that JH activates GPCR-PLC-PKC-ι cascade phosphorylates an EGF-precursor homology domain. Endosomal acidification leads to dephosphorylation. Phosphorylation essential translocate from oocyte cytoplasm membrane bind with on internalize Moreover, JH-promoted phosphorylation intracellular recycling deposition evolutionarily conserved across divergent orders.

Язык: Английский

Процитировано

52
Role of Endocrine System in the Regulation of Female Insect Reproduction DOI Creative Commons
Muhammad Zaryab Khalid, Sajjad Ahmad, Patrick Maada Ngegba

и другие.

Biology, Год журнала: 2021, Номер 10(7), С. 614 - 614

Опубликована: Июль 2, 2021

The proper synthesis and functioning of ecdysteroids juvenile hormones (JHs) are very important for the regulation vitellogenesis oogenesis. However, their role function contrast among different orders, even in same insect order. For example, JH is main hormone that regulates hemimetabolous which include Orthoptera, Blattodea, Hemiptera, while regulate orders Diptera, some Hymenoptera Lepidoptera. These endocrine also each other. Even at specific stage life, they positively other, other stages negatively control Such positive negative interaction 20-hydroxyecdysone (20E) discussed this review article to better understand these regulating reproduction. Therefore, purpose present deeply complex with insulin signaling pathway. microbiomes system reviewed, as significantly affected by compounds produced microbiota.

Язык: Английский

Процитировано

50
Involvement of Microbiota in Insect Physiology: Focus on B Vitamins DOI Creative Commons
Javier Serrato-Salas, Mathilde Gendrin

mBio, Год журнала: 2022, Номер 14(1)

Опубликована: Дек. 13, 2022

Insects are highly successful in colonizing a wide spectrum of ecological niches and feeding on diversity diets. This is notably linked to their capacity get from microbiota any essential component lacking the diet such as vitamins amino acids. Over century research based dietary analysis, antimicrobial treatment, gnotobiotic rearing, culture-independent microbe detection progressively generated wealth information about role specific aspects insect fitness. Thanks recent increase sequencing capacities, whole-genome number symbionts has facilitated tracing biosynthesis pathways, validation experimental data evolutionary analyses. field considerable set hosts harboring or nonspecific members. Here, we review current knowledge involvement tick nutrition, with particular focus B vitamin provision. We specifically question if there specificity provision by compared redundant yet contribution microbes. successively highlight known microbial during three main life stages invertebrates: postembryonic development, adulthood, reproduction.

Язык: Английский

Процитировано

39
Kr-h1, a Cornerstone Gene in Insect Life History DOI Creative Commons
Qianyu He, Yuanxi Zhang

Frontiers in Physiology, Год журнала: 2022, Номер 13

Опубликована: Апрель 27, 2022

Insect life cycle is coordinated by hormones and their downstream effectors. Krüppel homolog1 (Kr-h1) one of the crucial effectors which mediates actions two critical insects, juvenile hormone (JH) 20-hydroxyecdysone (20E). It a transcription factor with DNA-binding motif eight C 2 H zinc fingers found to be conserved among insect orders. The expression Kr-h1 fluctuant during development high abundance in instars lower levels final instar pupal stage, reappearance adults, governed coordination JH, 20E, miRNAs. dynamic pattern closely linked its function entire insects. Over past several years, accumulating studies have advanced our understanding role development. acts as universal antimetamorphic both hemimetabolous holometabolous species directly inhibiting 20E signaling genes Broad-Complex ( Br-C ) Ecdysone induced protein 93F E93 ), steroidogenic enzyme involved ecdysone biosynthesis. Meanwhile, it promotes vitellogenesis ovarian majority studied In addition, regulates behavioral plasticity caste identity, neuronal morphogenesis, maturation sexual behavior, well embryogenesis metabolic homeostasis. Hence, cornerstone regulator life.

Язык: Английский

Процитировано

36