Figure 1.

Loss of Function of CIKs Leads to Reduced Fertility.

(A) to (G) Inflorescence stems of 6-week-old plants.

(H) to (N) Scanning electron microscopy images showing stamens at flower stage 12.

(O) to (U) Alexander’s staining of mature anthers to show pollen viability.

(A), (H), and (O), wild type (Col); (B), (I), and (P), cik2/3; (C), (J), and (Q), cik2/3* (the second cik2/3 mutant); (D), (K), and (R), cik2/3/4; (E), (L), and (S), cik1/2/3; (F), (M), and (T), cik1/2/3* (the second cik1/2/3 mutant); (G), (N), and (U), cik1/2/3/4. Bars = 2 cm in (A) to (G), 200 µm in (H) to (N), and 50 µm in (O) to (U).