Fig. 2. Phenotypes of atbrm and syd. (A) atbrm-1 mutant (top) has a smaller rosette and curled leaves compared with the co-segregating wild-type plant (bottom). (B,C) Whereas the flowers in the wild-type inflorescence are completely open (C), flowers remain closed in the atbrm-1 inflorescence (B). (D,E) Fused stamen filaments (red arrowheads) can be found in the flowers of atbrm-1 (D) and syd-2 (E). (F) Root growth is retarded in atbrm-3 seedlings (left) relative to the wild type (right). Scale bars in B,C: 2.5 mm.