Spontaneous rotational inversion in Phycomyces.

The filamentary fungus Phycomyces blakesleeanus undergoes a series of remarkable transitions during aerial growth. During what is known as the stage IV growth phase, the fungus extends while rotating in a counterclockwise manner when viewed from above (stage IVa) and then, while continuing to grow,...

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Những tác giả chính: Goriely, A, Tabor, M
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2011
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author Goriely, A
Tabor, M
author_facet Goriely, A
Tabor, M
author_sort Goriely, A
collection OXFORD
description The filamentary fungus Phycomyces blakesleeanus undergoes a series of remarkable transitions during aerial growth. During what is known as the stage IV growth phase, the fungus extends while rotating in a counterclockwise manner when viewed from above (stage IVa) and then, while continuing to grow, spontaneously reverses to a clockwise rotation (stage IVb). This phase lasts for 24-48 h and is sometimes followed by yet another reversal (stage IVc) before the overall growth ends. Here, we propose a continuum mechanical model of this entire process using nonlinear, anisotropic, elasticity and show how helical anisotropy associated with the cell wall structure can induce spontaneous rotation and, under appropriate circumstances, the observed reversal of rotational handedness.
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spelling oxford-uuid:3866ae2c-3bb5-4d0b-acb7-2f7aa1c7f6772022-03-26T13:49:49ZSpontaneous rotational inversion in Phycomyces.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3866ae2c-3bb5-4d0b-acb7-2f7aa1c7f677EnglishSymplectic Elements at Oxford2011Goriely, ATabor, MThe filamentary fungus Phycomyces blakesleeanus undergoes a series of remarkable transitions during aerial growth. During what is known as the stage IV growth phase, the fungus extends while rotating in a counterclockwise manner when viewed from above (stage IVa) and then, while continuing to grow, spontaneously reverses to a clockwise rotation (stage IVb). This phase lasts for 24-48 h and is sometimes followed by yet another reversal (stage IVc) before the overall growth ends. Here, we propose a continuum mechanical model of this entire process using nonlinear, anisotropic, elasticity and show how helical anisotropy associated with the cell wall structure can induce spontaneous rotation and, under appropriate circumstances, the observed reversal of rotational handedness.
spellingShingle Goriely, A
Tabor, M
Spontaneous rotational inversion in Phycomyces.
title Spontaneous rotational inversion in Phycomyces.
title_full Spontaneous rotational inversion in Phycomyces.
title_fullStr Spontaneous rotational inversion in Phycomyces.
title_full_unstemmed Spontaneous rotational inversion in Phycomyces.
title_short Spontaneous rotational inversion in Phycomyces.
title_sort spontaneous rotational inversion in phycomyces
work_keys_str_mv AT gorielya spontaneousrotationalinversioninphycomyces
AT taborm spontaneousrotationalinversioninphycomyces