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http://dx.doi.org/10.5010/JPB.2013.40.3.156

Physiological responses to drought stress of transgenic Chinese cabbage expressing Arabidopsis H+-pyrophosphatase  

Jeong, Mihye (Department of Agro-Food Safety, National Academy of Agricultural Science, Rural Development Administration)
Kang, In-Kyu (Department of Horticultural Science, Kyungpook National University)
Kim, Chang Kil (Department of Horticultural Science, Kyungpook National University)
Park, Kyung Il (Department of Horticulture and Life Science, Yeungnam University)
Choi, Cheol (Department of Horticultural Science, Kyungpook National University)
Han, Jeung-Sul (Department of Ecological Environment, Kyungpook National University, Department of Ecological Science, Graduate School, Kyungpook National University)
Publication Information
Journal of Plant Biotechnology / v.40, no.3, 2013 , pp. 156-162 More about this Journal
Abstract
Plant tolerance to drought is a beneficial trait for stabilizing crop productivity under water deficits. Here we report that genetically engineered Chinese cabbage expressing Arabidopsis $H^+$-pyrophosphatase (AVP1) shows enhanced physiological parameters related to drought tolerance. In comparison with wild type plants under soil water deficit stress created by cessation of irrigation, soil water potential in pot with AVP1-expressing plants was more rapidly decreased that might lead to increased relative water content in leaves, while both genotypes had indistinguishable wilting phenotypes. Transgenic plants subjected to drought treatment also exhibited higher photosystem II quantum yield in addition to lower electrolyte leakage and $H_2O_2-3,3^{\prime}$-diaminobenzidine content when compared to wild type plants.
Keywords
Chinese cabbage; $H^+$-pyrophosphatase; Genetic transformation; Drought tolerance;
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Times Cited By KSCI : 2  (Citation Analysis)
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