Multicellular stalk-like structures in Saccharomyces cerevisiae.

Abstract:

:Stalk formation is a novel pattern of multicellular organization. Yeast cells which survive UV irradiation form colonies that grow vertically to form very long (0.5 to 3.0 cm) and thin (0.5 to 4 mm in diameter) multicellular structures. We describe the conditions required to obtain these stalk-like structures reproducibly in large numbers. Yeast mutants, mutated for control of cell polarity, developmental processes, UV response, and signal transduction cascades were tested and found capable of forming stalk-like structures. We suggest a model that explains the mechanism of stalk formation by mechanical environmental forces. We show that other microorganisms (Candida albicans, Schizosaccharomyces pombe, and Escherichia coli) also form stalks, suggesting that the ability to produce stalks may be a general property of microorganisms. Diploid yeast stalks sporulate at an elevated frequency, raising the possibility that the physiological role of stalks might be disseminating spores.

journal_name

J Bacteriol

journal_title

Journal of bacteriology

authors

Engelberg D,Mimran A,Martinetto H,Otto J,Simchen G,Karin M,Fink GR

doi

10.1128/JB.180.15.3992-3996.1998

subject

Has Abstract

pub_date

1998-08-01 00:00:00

pages

3992-6

issue

15

eissn

0021-9193

issn

1098-5530

journal_volume

180

pub_type

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