EXPLORE

  

  • Strategy

Proteins cause ice nucleation: a plant pathogen

The cells of Pseudomonas syringae, a plant pathogen, can cause ice nucleation via specific surface proteins.

BIOMIMICRY TAXONOMY
Summary
"P. syringae is one of the few plant pathogens known to be disseminated up into clouds (Jayaweera and Flanagan, 1982; Sands et al., 1982). It is also scrubbed from the air during rain (Constantinidou et al., 1990). Many strains of this bacterium are ice nucleation-active (Lindow, 1983), are known to survive freezing as well as induce freezing, and it has been suggested that they might even have a role in inciting rainfall via their ice nucleation activity (Morris et al., 2004)." (Morris et al. 2007:85)

"Antifreeze proteins (AFPs) inhibit the growth of ice, whereas ice-nucleation proteins (INPs) promote its formation…Although several organisms have been identified as having ice-nucleation activity, the best characterized by biochemical methods are the bacterial INPs. Of these INPs, that of Pseudomonas syringae is often used as a representative protein." (Graether and Jia 2001:1169)
About the inspiring organism
Pseudomonas
Pseudomonas

Learn more at EOL.org
Organism/taxonomy data provided by:
Species 2000 & ITIS Catalogue of Life: 2008 Annual Checklist

IUCN Red List Status: Unknown

Bioinspired products and application ideas

Application Ideas: Ice cream additive to keep nucleation events small/fast, stabilizing protein will have clinical results for human disease (eg. DMSO). Use as additive for controlling nucleation of ice.

Industrial Sector(s) interested in this strategy: Medicine, manufacturing, food, ecosystem restoration

Experts
Biochemistry
Zongchao Jia
Queen's University
Department Plant Sciences and Plant Pathology
David C. Sands
Montana State University
References
Morris, C. E.; Kinkel, L. L.; Xiao, K.; Prior, P.; Sands, D. C. 2007. Surprising niche for the plant pathogen Pseudomonas syringae. Infection, Genetics and Evolution. 7(1): 84-92.
Learn More at Google Scholar Google Scholar  

Graether, SP; Jia, Z. Modeling Pseudomonas syringae ice-nucleation protein as a b-Helical protein. Biophysical Journal. 80(3): 1169-1173.
Learn More at Google Scholar Google Scholar  

Comments

Login to Post a Comment.

No comments found.

Share