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Skotomorphogy analysis. (A) Two-week-old seedlings grown on half-strength MS in dark conditions. The mesocotyl (B) and first internode (C) length of OD2 is comparable to WT, whereas the second internode (D) was obviously shortened in OD2.Values are mean ± sd, n = 12. Double asterisks stand for P < 0.01 determined by student's t-test. Arrows and arrowheads indicate the nodes and mesocotyls, respectively. Bar = 25 mm.
