Skip to content

Research at St Andrews

Holographic and single beam optical manipulation of hyphal growth in filamentous fungi

Research output: Contribution to journalArticle

Author(s)

D. R. Burnham, G. D. Wright, N. D. Read, D. McGloin

School/Research organisations

Abstract

We report on the ability of holographic light fields to alter the normal growth patterns of filamentous fungi. The light fields are produced on a microscopic scale by borrowing methods from the field of optical tweezers, but without the aim of directly trapping or manipulating objects. Extended light fields are shown to redirect and constrict hyphal tip growth, and induce hyphal branching in a highly reproducible manner. The merits of using discrete and continuous light fields produced using a spatial light modulator are discussed and the use of three-dimensional 'pseudowalls' of light to control the growth patterns is reported. We also demonstrate the dependence of hyphal tip growth on the wavelength of light, finding that less power is needed at shorter wavelengths to effect changes in the growth dynamics of fungal hyphae.

Close

Details

Original languageEnglish
Pages (from-to)S172-S179
Number of pages8
JournalJournal of Optics A: Pure and Applied Optics
Volume9
Issue number8
DOIs
Publication statusPublished - Aug 2007

    Research areas

  • filamentous fungi, micromanipulation, optical tweezers, holography, Neurospora, hyphal tip growth, COMPUTER-GENERATED HOLOGRAMS, SPATIAL LIGHT MODULATORS, LASER MICROBEAM, NEUROSPORA-CRASSA, GENOME SEQUENCE, NEURONAL GROWTH, TWEEZERS, MICROMANIPULATION, CELLS, DNA

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by journal

  1. Spin and angular momentum operators and their conservation

    Mazilu, M., 27 Apr 2009, In : Journal of Optics A: Pure and Applied Optics. 11, 9, 4 p., 094005.

    Research output: Contribution to journalArticle

  2. Colloidal sorting in dynamic optical lattices

    Smith, R. L., Spalding, G. C., Dholakia, K. & MacDonald, M. P., Aug 2007, In : Journal of Optics A: Pure and Applied Optics. 9, 8, p. S134-S138 5 p.

    Research output: Contribution to journalArticle

  3. Eye-safe broadband output at 1.55 microns through the use of a fan-out grating structure in MgO:PPLN

    Terry, J. A. C., Tsiminis, G., Dunn, M. H. & Rae, C. F., Mar 2007, In : Journal of Optics A: Pure and Applied Optics. 9, 3, p. 229-234 6 p.

    Research output: Contribution to journalArticle

  4. Quantum optics of spatial transformation media

    Leonhardt, U. & Philbin, T. G., Sep 2007, In : Journal of Optics A: Pure and Applied Optics. 9, 9, p. S289-S293 5 p.

    Research output: Contribution to journalArticle

ID: 646510

Top