Spiralling in sporangiophores of phycomyces following a temporary cessation of growth


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ABSTRACT AN attempt was made some time ago1 to relate spiral growth in sporangiophores of _Phycomyces_ to the physical properties of the wall, and the successful semi-quantitative test of


the relation proposed against the data of Castle2, as well as the more recent extension to the case of spiral grain in conifers3, makes it reasonable to assume that, oversimplified though


the relation undoubtedly is, it does express spiral growth in terms of the appropriate parameters. Assuming for simplicity that the ‘fibrils’ in the wall of the growth-zone are circular in


section (though this is not an essential part of the theory) it appears that the rotation of the tip of the sporangiophore, Δφ, associated with a length increase of ΔL is given by the


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support SIMILAR CONTENT BEING VIEWED BY OTHERS HELICAL GROWTH DURING THE PHOTOTROPIC RESPONSE, AVOIDANCE RESPONSE, AND IN STIFF MUTANTS OF _PHYCOMYCES BLAKESLEEANUS_ Article Open access 11


February 2021 PREDICTION AND EXPERIMENTAL EVIDENCE OF DIFFERENT GROWTH PHASES OF THE _PODOSPORA ANSERINA_ HYPHAL NETWORK Article Open access 25 May 2023 TOPOLOGICAL TRANSITION IN FILAMENTOUS


CYANOBACTERIA: FROM MOTION TO STRUCTURE Article Open access 20 November 2024 REFERENCES * Preston, R. D., _Biochim. et Biophys. Acta_, 2, 155 (1948). Article  CAS  Google Scholar  * See,


for example, Castle, E. S., _Amer. J. Bot._, 29, 654 (1942). Article  Google Scholar  * Preston, R. D., _Forestry_ (in the press, 1949). Download references AUTHOR INFORMATION AUTHORS AND


AFFILIATIONS * University of Leeds, R. D. PRESTON & Mavis Middlebrook Authors * R. D. PRESTON View author publications You can also search for this author inPubMed Google Scholar * Mavis


Middlebrook View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE


PRESTON, R., Middlebrook, M. Spiralling in Sporangiophores of Phycomyces Following a Temporary Cessation of Growth. _Nature_ 164, 217–218 (1949). https://doi.org/10.1038/164217a0 Download


citation * Issue Date: 06 August 1949 * DOI: https://doi.org/10.1038/164217a0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable


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