Title |
Functional characterization of an ornithine cyclodeaminase-like protein of Arabidopsis thaliana
|
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Published in |
BMC Plant Biology, November 2013
|
DOI | 10.1186/1471-2229-13-182 |
Pubmed ID | |
Authors |
Sandeep Sharma, Suhas Shinde, Paul E Verslues |
Abstract |
In plants, proline synthesis occurs by two enzymatic steps starting from glutamate as a precursor. Some bacteria, including bacteria such as Agrobacterium rhizogenes have an Ornithine Cyclodeaminase (OCD) which can synthesize proline in a single step by deamination of ornithine. In A. rhizogenes, OCD is one of the genes transferred to the plant genome during the transformation process and plants expressing A. rhizogenes OCD have developmental phenotypes. One nuclear encoded gene of Arabidopsis thaliana has recently been annotated as an OCD (OCD-like; referred to here as AtOCD) but nothing is known of its function. As proline metabolism contributes to tolerance of low water potential during drought, it is of interest to determine if AtOCD affects proline accumulation or low water potential tolerance. |
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