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Control of Moulting and Metamorphosis in the Tobacco Hornworm, Manduca Sexta (L.): Growth of the Last-Instar Larva and the Decision to Pupate
Abstract
The dynamics of growth and the timing of release of the brain ‘s pro-thoracicotropic hormone (PTTH) in final instar larvae of Manduca sexta are consistent with the following hypothesis. When a 5th-stage larva reaches a critical weight of about 5 g an unidentified process is initiated which requires 24 h to be completed. At the completion of this process the brain is rendered competent to release PTTH. The actual release of PTTH is gated by the photoperiod and occurs when the gate opens during the very next photophase.
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Citations
Cited by
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How flies get their size: genetics meets physiology
Edgar, B. A. (2006) · Nature Reviews Genetics · doi:10.1038/nrg1989 · Cited by 441
Nijhout, H. F., & Williams, C. M. (1974) · Journal of Experimental Biology · doi:10.1242/jeb.61.2.493 · Cited by 409
Self-citationSize and shape: the developmental regulation of static allometry in insects
Shingleton, A. W., Frankino, W. A., Flatt, T., Nijhout, H. F., & Emlen, D. J. (2007) · BioEssays · doi:10.1002/bies.20584 · Cited by 355
Self-citationJuvenile hormone regulates body size and perturbs insulin signaling in Drosophila
Mirth, C. K., Tang, H. Y., Makohon-Moore, S. C., Salhadar, S., Gokhale, R. H., Warner, R. D., Koyama, T., Riddiford, L. M., & Shingleton, A. W. (2014) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1313058111 · Cited by 211
Metadata
- Authors
- Nijhout, H. F., & Williams, C. M.
- Venue
- Journal of Experimental Biology
- Publisher
- The Company of Biologists
- Published
- 1974-10-01
- Volume
- 61
- Issue
- 2
- Pages
- 481-491
- ISSN
- 0022-0949 (ISSN-L)
- 1477-9145
- OpenAlex
- W2147565105
- Cited by
- 376
- References
- 0
- FWCI
- 3.17
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Control of Moulting and Metamorphosis in the Tobacco Hornworm, Manduca Sexta (L.): Growth of the Last-Instar Larva and the Decision to Pupate. https://app.cochat.ai/papers/10.1242/jeb.61.2.481
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- Nijhout, H. F., & Williams, C. M. (1974). Control of Moulting and Metamorphosis in the Tobacco Hornworm, Manduca Sexta (L.): Growth of the Last-Instar Larva and the Decision to Pupate. Journal of Experimental Biology. https://doi.org/10.1242/jeb.61.2.481
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
