enzymes generally returned to pre-treatment levels in the progeny. Thus, transgenerational effects on SHR frequency are not a general response to abiotic stress in Arabidopsis and may require special conditions. Notes: Cited Reference Count: 60 ref. URL: <Go to ISI>://20103247754 Author Address: Gregor Mendel Institute of Molecular Plant Biology (GMI), Austrian Academy of Sciences, Vienna, Austria. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Author: Penna Suprasanna, TR Ganapathi Year: 2010 Title: * Engineering the plant genome: Prospects of selection systems using nonantibiotic marker genes. Journal: GM Crops Volume 1, Issue 3 May/June 2010 Pages 128 - 136 DOI: 10.4161/gmcr.1.3.12383 Label: Bioengineering Traceur Abstract: In the past 2-3 decades, great progress has been achieved in the field of plant genetic manipulation. This progress is based on fine-tuning of gene transfer methods, selection of transformed cells, and regulation of transgene expression. Transgenic plant production requires selectable marker genes that enable the selection of transformed cells, tissue and plants. The most used are those that exhibit resistance to antibiotics or herbicides. Although this type of selection is routinely practiced, there are perceived risks in the deployment of transgenic plants containing these markers. A number of strategies have emerged on the development of alternate selection systems referred to as positive selection and marker-free systems. Transgenes that permit plant cells to utilize new carbon sources are being employed in transformation research. Current research on marker-free transgenics is growing rapidly and its application is being tested in different plant species. URL: http://www.landesbioscience.com/journals/gmcrops/article/12383/ Author Address: Nuclear Agriculture And Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 India Nuclear Agriculture And Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Author: Peremarti Ariadna, Bassie Ludovic, Zhu Changfu, Christou Paul, Capell Teresa, Year: 2010 Title: * Molecular characterization of the Arginine decarboxylase gene family in rice. Secondary Title: Transgenic Research 19, 5, 785-797. Publisher: Springer Netherlands Date: 2010-10-01 ISBN/ISSN: 0962-8819 Label: Physiol ReEn Secheresse Keywords: Biomedical and Life Sciences Abstract: Arginine decarboxylase (ADC) is a key enzyme in plants that converts arginine into putrescine, an important mediator of abiotic stress tolerance. Adc genes have been isolated from a number of dicotyledonous plants but the oat and rice Adc genes are the only representatives of monocotyledonous species described thus far. Rice has a small family of Adc genes, and OsAdc1 expression has been shown to fluctuate under drought and chilling stress. We identified and characterized a second rice Adc gene (OsAdc2) which encodes a 629amino-acid protein with a predicted molecular mass of 67 kDa. An unusual feature of the OsAdc2 gene is the presence of an intron and a short upstream open reading frame in the 5′-UTR. Sequence comparisons showed that OsAdc2 is more closely related to the oat Adc gene than to OsAdc1 or to its dicot homologs, and mRNA analysis showed that the two rice genes are also differently regulated. Whereas OsAdc1 is expressed in leaf, root and stem, OsAdc2 expression is restricted to stem tissue. Protein expression was investigated with specific antibodies against ADC1 and ADC2, corroborating the mRNA data. We discuss the expression profiles of OsAdc1 and OsAdc2 and potential functions for the two corresponding proteins. Notes: 55 Ref. URL: http://dx.doi.org/10.1007/s11248-009-9354-0 Author Address: (1) Departament de Producció Vegetal i Ciència Forestal, ETSEA, Universitat de Lleida, Av. Alcalde Rovira Roure 191, 25198 Lleida, Spain
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