Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

The Present Status of the Mode of Action of Insect Juvenile Hormone

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

For more content, see Archives Néerlandaises de Zoologie (Vol 1-17) and Animal Biology (Vol 53 and onwards).

Some old and recent views concerning the mode of action of insect juvenile hormone (JH) have been reviewed. The original, 60-year-old hormone concepts were based on the qualitative, inhibitory role of JH in insect metamorphosis. After 1950, insect endocrinologists created a model of quantitative JH mode of action, on the basis of findings on epidermal transplantations in Galleria. According to this model, a single epidermal cell would produce larval characters at high concentrations of JH, pupal characters at intermediate concentrations, whereas in the absence of JH it would give rise to adult epidermal patterns. This simple model of JH action became the leading concept of insect endocrinology until this time. However, direct experimental proof that qualitative structural changes between the juvenile and adult stage are controlled by the JH concentration has never been provided. Moreover, essential aspects of the concept, such as 'reversal of metamorphosis', appear to be completely illusive. Alternative views, explaining the mode of action ofJH by inhibition of morphogenesis in some genetically determined ontogenetic periods have been presented. According to these views JH cannot cause the 'reversal of metamorphosis' and its action at the cellular level would proceed according to the common 'all-or-none' rule.

Affiliations: 1: Institute of Entomology, Academy of Sciences, Branišovská 31, 37005 české Budějovaice, Czech Republic

10.1163/156854295X00618
/content/journals/10.1163/156854295x00618
dcterms_title,pub_keyword,dcterms_description,pub_author
6
3
Loading
Loading

Full text loading...

/content/journals/10.1163/156854295x00618
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156854295x00618
Loading

Article metrics loading...

/content/journals/10.1163/156854295x00618
1994-01-01
2016-12-06

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Netherlands Journal of Zoology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation