Isolation and Identification of Juvenile Hormones by Means of a Radioactive Isotope Dilution Method: Evidence for JH III in Eight Species from Four Orders

Trautmann, K. H.; Suchý, M.; Masner, P.; Wipf, H.‐K.; Schuler, Alexandre Ricardo Pereira

doi:10.1007/978-1-4684-7947-8_9

Cited by 8 publications

(1 citation statement)

References 13 publications

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“…Agronomy 2023, 13, 2177 2 of 15 Eight natural JHs have been identified, with JH III being predominant in most insects [13,14] and JH I and JH II being predominant in lepidopteran insects [15]. This suggests that JH I and JH II may serve as morphogenetic hormones, whereas JH III primarily functions as a gonadotropin [16], although this interpretation is questionable given the detection of both JH I and JH II in most morphogenetic insects.…”

Section: Introductionmentioning

confidence: 99%

Interactions between 20-Hydroxyecdysone and Juvenile Hormone I, II, and III during the Developmental Stages of Spodoptera frugiperda

Li,

Liao,

Hou

et al. 2023

Agronomy

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Juvenile hormones (JHs) play a crucial role in the development of the fall armyworm, Spodoptera frugiperda, with varying types and concentrations observed at different stages. However, the interplay between JHs and 20-hydroxyecdysone (20E) in co-ordinating the life cycle of S. frugiperda remains unknown. In this study, by using high-precision UPLC-MS/MS and qRT-PCR, we detected changes in JH and 20E levels and identified important 20E receptor and response genes. Our findings revealed that JH I antagonises JH II, whereas JH II promotes JH III synthesis. High JH I and JH II concentrations in the larval stage strongly affected moulting to the next instar. Furthermore, these hormones inhibit 20E synthesis and reduce its receptor expression, thereby affecting 20E signalling. During pupation, JH II plays a crucial role in stimulating 20E synthesis for larval–pupal transformation. JH I and JH II are essential for eclosion, precisely controlling emergence timing and subsequent reproductive organ maturation. These hormones likely regulate larval development, pupation, and adult reproduction in S. frugiperda. Further studies are warranted to explore the regulatory advantages of JH I and JH II over JH III.

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Section: Introductionmentioning

confidence: 99%

Interactions between 20-Hydroxyecdysone and Juvenile Hormone I, II, and III during the Developmental Stages of Spodoptera frugiperda

Li,

Liao,

Hou

et al. 2023

Agronomy

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Identification of an hemipteran juvenile hormone: In vitro biosynthesis of JH III by Dysdercus fasciatus

1983

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Corpora allata of the African cotton stainer, Dysdercus fasciatus Sign. (Hemiptera: Pyrrhocoridae), produce radiolabeled methyl-l0,ll-epoxy-3,7,11-trimethyldodeca-2E,6E-dienoate (JH 111) when cultured in a medium containing L-[meth~l-'~C] methionine. Similar in vitro studies show JH TI1 biosynthesis by cultured corpora allata of Lygaeid and Pentatomid species. This is the first identification of a juvenile hormone in Hemiptera.

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Hormonal Control of Insect Migratory Behavior

Rankin¹

1978

Proceedings in Life Sciences

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Isolation and Identification of Juvenile Hormones by Means of a Radioactive Isotope Dilution Method: Evidence for JH III in Eight Species from Four Orders

Cited by 8 publications

References 13 publications

Interactions between 20-Hydroxyecdysone and Juvenile Hormone I, II, and III during the Developmental Stages of Spodoptera frugiperda

Interactions between 20-Hydroxyecdysone and Juvenile Hormone I, II, and III during the Developmental Stages of Spodoptera frugiperda

Identification of an hemipteran juvenile hormone: In vitro biosynthesis of JH III by Dysdercus fasciatus

Hormonal Control of Insect Migratory Behavior

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