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Fig. 2. Phenotypes of arf6-2, arf8-3 and arf6-2 arf8-3 double mutant plants. (A) 47-day-old plants. (B) Flowers of wild-type and arf6-2 arf8-3 double mutant plants. Flower buds from a single inflorescence are arranged from youngest to oldest. (C) Inflorescence stem of an arf6-2 arf8-3 plant showing arrested flower buds. (D) Scanning electron micrographs of apices of gynoecia of mature wild-type (left) and arrested arf6-2 arf8-3 (right) flowers of the same age. Scale bar: 0.1 mm. (E) Mature wild-type flower at the stage of self-fertilization. (F) arf6-2 arf8-3 flower bud untreated (left), or 2-3 days after application of linolenic acid, OPDA or jasmonic acid. In E and F, buds were dissected to reveal internal organs.





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