This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Maki, L. R. Articles by Caldwell, D. R. Search for Related Content PubMed Articles by Maki, L. R. Articles by Caldwell, D. R. Agricola Articles by Maki, L. R. Articles by Caldwell, D. R.

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1974 September; 28(3): 456-459
Copyright © 1974 American Society for Microbiology. All Rights Reserved.

Ice Nucleation Induced by Pseudomonas syringae¹

Division of Microbiology and Veterinary Medicine, University of Wyoming, Laramie, Wyoming 82071

ABSTRACT

Broth cultures of suspensions of Pseudomonas syringae isolated from decaying alder leaves (Alnus tenuifolia) were found to freeze at very warm (-1.8 to -3.8 C) temperatures. The initiation of freezing appears associated with the intact cell and not with extracellular material. Chemical treatments and physical destruction of the cell destroy activity. Bacteria must be in concentrations of approximately 10⁶/ml before freezing at warm temperatures occurs.

¹ Wyoming Agricultural Experiment Station Journal article no. 673.