IDEAS home Printed from https://ideas.repec.org/a/eee/phsmap/v313y2002i3p609-624.html
   My bibliography  Save this article

The mode transition of the bacterial colony

Author

Listed:
  • Eiha, Noriko
  • Komoto, Atsushi
  • Maenosono, Shinya
  • Yuichiro Wakano, Joe
  • Yamamoto, Kenji
  • Yamaguchi, Yukio

Abstract

The colony patterns of Bacillus circulans on agar medium were experimentally investigated to study about the growth mode transition. From the optical microscopic observation, the bacteria distribute inside the medium, that is, the colony grows three-dimensionally (3D) in the soft agar condition (CA<0.9wt%). On the other hand, the bacteria distribute on the surface, that is, the colony grows two-dimensionally (2D) in the hard agar condition (CA⩾0.9wt%). It indicates that the mode transition occurs by changing the hardness of the medium. The mode transition is confirmed by the discontinuous change in the pattern diagram and in the colony growth rate, which is defined as the expanding speed of the colony. Under the softer agar condition in the range of the 2D mode (0.9⩽CA⩽1.2wt%), the induction time exists. Before the induction time, the colony grows in 3D mode. The length of the induction time decreases with increasing the bacterial number density. In addition, bacterial aggregation plays a key role on 2D growth. These results suggest that the increasing bacterial number density causes bacterial aggregation resulting in the mode transition.

Suggested Citation

  • Eiha, Noriko & Komoto, Atsushi & Maenosono, Shinya & Yuichiro Wakano, Joe & Yamamoto, Kenji & Yamaguchi, Yukio, 2002. "The mode transition of the bacterial colony," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 313(3), pages 609-624.
    • Handle: RePEc:eee:phsmap:v:313:y:2002:i:3:p:609-624
    DOI: 10.1016/S0378-4371(02)00983-4
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378437102009834
    Download Restriction: Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000
    File URL: https://libkey.io/10.1016/S0378-4371(02)00983-4?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:phsmap:v:313:y:2002:i:3:p:609-624. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/physica-a-statistical-mechpplications/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.