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Identification of Enhanced Resistance to Abiotic Stress Induced by Methyl Viologen in Progeny from a Cross of Transgenic Lines of Petunia  

Lee, Su Young (National Institute of Horticultural & Herbal Science, Rural Development Administration)
Lee, Jung Lim (National Institute of Horticultural & Herbal Science, Rural Development Administration)
Kim, Seung Tae (National Institute of Horticultural & Herbal Science, Rural Development Administration)
Lee, Eun Kyung (National Institute of Horticultural & Herbal Science, Rural Development Administration)
Kwon, O Hyeon (National Institute of Horticultural & Herbal Science, Rural Development Administration)
Kim, Won Hee (National Institute of Horticultural & Herbal Science, Rural Development Administration)
Publication Information
FLOWER RESEARCH JOURNAL / v.19, no.4, 2011 , pp. 269-273 More about this Journal
Abstract
This study was conducted to investigate the resistance to abiotic stress in the progeny obtained by a cross between NDPK2-transgenic line (NDPK2-7-1) and MnSOD (SOD2) transgenic line (SOD2-2-1-1-35) to develop transgenic petunia highly resistant to environmental stress. At the treatment of 100 and $200{\mu}M$ methyl viologene (MV), the progeny was significantly less damaged than its parental plants (SOD2- or NDPK2-transgenic lines) as well as non-transgenic plants, implying its resistance to oxidative stress enhanced than SOD2- or NDPK2-transgenic plants. In an expression of 11 quantitative traits, the progeny remained similar to control plants, although it infrequently displayed slightly longer or wider than non-transgenic control plants. In the color and shape of flowers, there was no significant difference between the progeny and its parents or non-transgenic control.
Keywords
Environmental stress; Morphological traits; Oxidative stress; Petunia hybrida; Resistance;
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