Modulation of plant ethylene levels by the bacterial enzyme ACC deaminase

• Published in: FEMS microbiology letters Vol. 251; no. 1; pp. 1 - 7
• Main Author: Glick, Bernard R.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Elsevier B.V 01.10.2005; Blackwell Publishing Ltd; Blackwell; Oxford University Press
• Subjects: ACC deaminase; Bacteria; Bacteria - enzymology; Bacteria - genetics; Bacteriology; Biological and medical sciences; Biological evolution; Carbon-Carbon Lyases - genetics; Carbon-Carbon Lyases - metabolism; Environmental stress; Enzymes; Ethylene; Ethylenes - metabolism; Evolutionary genetics; Fundamental and applied biological sciences. Psychology; Gene expression; Metabolism. Enzymes; Microbiology; Microorganisms; Parasitism and symbiosis; Plant Development; Plant growth; Plant growth-promoting bacteria; Plant physiology and development; Plants - enzymology; Plants - metabolism; Plants - microbiology; Sequestering; Soil microorganisms; Symbiosis; Plant growth-promoting bacteria; Ethylene; ACC deaminase; Archaeobacteria; Escherichia coli; Gene expression; Pyrococcus; Plant; Rhizobacteria; Enzymatic activity; Deamination; Bacteria; Transgenic plant; Plant growth promoting rhizobacteria; Enterobacteriaceae
• ISSN: 0378-1097; 1574-6968
• DOI: 10.1016/j.femsle.2005.07.030

Soil microorganisms that produce the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase promote plant growth by sequestering and cleaving plant-produced ACC, and thereby lowering the level of ethylene in the plant. Decreased ethylene levels allows the plant to be more resistant to a wide variety of environmental stresses. Here, the biochemistry of ACC deaminase; the environmental distribution, regulation, evolution and expression of ACC deaminase genes; and information regarding the effect of this enzyme on different plants is documented and discussed.