Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
Language: Английский
Current Opinion in Insect Science, Journal Year: 2024, Volume and Issue: 67, P. 101287 - 101287
Published: Oct. 24, 2024
Language: Английский
Citations
4
International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 140079 - 140079
Published: Jan. 1, 2025
Language: Английский
Citations
0
Published: Jan. 1, 2025
Language: Английский
Citations
0
Frontiers in Physiology, Journal Year: 2025, Volume and Issue: 16
Published: March 14, 2025
Insect diapause is a vital survival strategy that enables insects to enter state of suspended development, allowing them withstand unfavorable environmental conditions. During diapause, significantly lower their metabolic rate and build up energy reserves, which they gradually utilize throughout this period. The regulation involves complex interaction hormones enzymes. Juvenile (JHs) affect adults larvae differently; in adults, the absence JH typically triggers while larvae, presence encourages state. Ecdysteroids, regulate molting metamorphosis, are carefully controlled prevent premature development. Reduced signaling insulin-like peptides enhances stress resistance promotes storage. Several enzymes play crucial roles adjustments necessary for diapause. These include degradation JH, ecdysteroidogenic pathway, metabolism fatty acids, glycogen, cryoprotectants, responses. Understanding diapause's molecular biochemical mechanisms essential fundamental entomological research practical applications. Despite recent advances, many aspects regulation, especially interactions among hormonal pathways role enzymes, remain poorly understood. This review analyzes approximately 250 papers consolidate current knowledge on enzymatic It offers comprehensive overview key processes based studies suggests future directions fill gaps our understanding significant biological phenomenon. also lays groundwork enhancing pest control strategies ecological conservation by deepening mechanisms.
Language: Английский
Citations
0
Archives of Insect Biochemistry and Physiology, Journal Year: 2025, Volume and Issue: 118(4)
Published: April 16, 2025
ABSTRACT Understanding gene expression in specific tissues and their modulation under environmental stimuli, such as nutritional deficiency, reveals the key physiological regulatory mechanisms of an organism. This study examined tissue‐specific insulin‐like peptide (ILP) genes ( BmX BmZ ) Bombyx mori larvae responses to hyperglycaemia, food deprivation hormonal (20‐hydroxyecdysone bovine insulin) treatments. mRNA levels were analyzed brain, fat body, midgut ovary. The results revealed that was highly expressed while both abundant Hyperglycaemia increased level (3.07‐fold) brain (7.53‐fold), all except midgut. Nutrient deficiency upregulated (1.36‐fold) body reducing it (−0.53‐fold) Food progressively (0.77‐fold at 24 h 2.34‐fold 72 h) transcripts declined Insulin suppressed (−0.25‐fold) (−0.91‐fold) food‐deprived whereas 20E consistently downregulated BmX, , BmInR (insulin receptor) conditions. These findings complex interaction expression, tissue specificity, factors B. provided insights into adaptive stress regulation insect with potential applications sericulture agricultural biotechnology.
Language: Английский
Citations
0
Frontiers in Ecology and Evolution, Journal Year: 2024, Volume and Issue: 12
Published: June 21, 2024
Phenotypic plasticity is a fundamental property of developing organisms and thought to play an important role in diversification. Plastic responses themselves are remarkably diverse respond wide range environmental factors. Here I focus on response variation nutrition insects since 1) widespread factor that impacts most organisms, 2) models study phenotypic plasticity. First, provide brief overview our current mechanistic understanding the regulation nutritionally cued insects, both traditional as well emerging model systems. Then, explore evolutionary mechanisms enabling diversification across taxa, emphasizing gene duplication regulatory network co-option. Furthermore, examine nutrition-responsive phenotypes suites multiple traits develop coordinated manner. argue how these integrated at molecular level can shed light evolution complex phenotypes. Finally, discuss potential challenges opportunities further plasticity, its regulation, evolution.
Language: Английский
Citations
2
Journal of Insect Physiology, Journal Year: 2024, Volume and Issue: unknown, P. 104709 - 104709
Published: Sept. 1, 2024
Language: Английский
Citations
1
Current Opinion in Neurobiology, Journal Year: 2024, Volume and Issue: 89, P. 102930 - 102930
Published: Oct. 28, 2024
Language: Английский
Citations
1
Insect Science, Journal Year: 2024, Volume and Issue: unknown
Published: July 29, 2024
Abstract Syntaxin 1A (Syx1A) has diverse and indispensable functions in animals. Previous studies have mainly focused on the roles of Syx1A Drosophila , so how operates during development other insects remains poorly understood. This study investigated whether disrupting LmSyx1A using RNA interference (RNAi) affects growth Locusta migratoria. was expressed all tissues tested, with highest expression observed fat body. After 5th‐instar nymphs were injected double‐stranded (ds ), none able to molt normally eventually died. The silencing resulted cessation feeding, body weight loss, atrophy midgut gastric cecum locusts. Hematoxylin eosin (H&E) staining showed that columnar cells severely damaged, microvilli defects visible ds ‐injected nymphs. Secretory vesicles transmission electron microscopy (TEM). In addition, reverse transcription quantitative polymerase chain reaction (RT‐qPCR) further indicates repressed genes involved insulin/mammalian target rapamycin (mTOR)‐associated nutritional pathway. Taken together, these results suggest significantly cell layer locust nymphs, which partially associated downregulation insulin/mTOR‐associated Thus, we argue is a suitable for developing dsRNA‐based biological pesticides managing L. migratoria .
Language: Английский
Citations
0
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 30, 2024
ABSTRACT L-3,4-dihydroxyphenylalanine (L-DOPA), a naturally occurring tyrosine derivative, is prevalent in environments that include mosquito habitats, potentially serving as part of their diet. Given its role precursor for melanin synthesis we investigated the effect dietary L-DOPA on physiology and immunity to Plasmodium falciparum Cryptococcus neoformans infection. Dietary was incorporated into via non-canonical pathway had profound transcriptional effects were associated with enhanced immunity, increased pigmentation, reduced lifespan. Increased melanization resulted an capacity absorb electromagnetic radiation affected temperatures. Bacteria microbiome sources dopamine, which substrate melanization. Our results illustrate how environmentally abundant amino acid analogue can affect suggest potential usefulness friendly vector control agent reduce malaria transmission, warranting further research field studies.
Language: Английский
Citations
0