E-viri
Recenzirano
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Jun, S.S. (Seoul National University, Seoul, Republic of Korea); Yang, J.Y. (Seoul National University, Seoul, Republic of Korea); Choi, H.J. (Seoul National University, Seoul, Republic of Korea); Kim, N.R. (The Catholic University of Korea, Puchon, Republic of Korea); Park, M.C. (The Catholic University of Korea, Puchon, Republic of Korea); Hong, Y.N. (Seoul National University, Seoul, Republic of Korea), E-mail: ynhong@snu.ac.kr
Journal of plant biology = Singmul Hakhoe chi, 12/2005, Letnik: 48, Številka: 4Journal Article
Transgenic tobacco (Nicotiana tabacum L. var. SR1) plants that over-express the Escherichia coli trehalose-6-phosphate synthase (TPS) gene (otsA) synthesized small amounts of trehalose (less than400 ㎍ g-¹ leaf) while non-transformants produced no detectable trehalose. Some transgenic plants expressing a high level of otsA exhibited stunted growth and morphologically altered leaves. We tested F₂ homozygous plants devoid of phenotypic changes to determine their physiological responses to dehydration and salinity stresses. All transgenic plants maintained better leaf turgidity under a limited water supply or after treatment with polyethylene glycol (PEG).
