Figure 4.

Impact of WHIRLY1 on the structure of prolamellar bodies and prothylakoids of etioplasts (A) and thylakoids of barley chloroplasts (B,C). Ultrathin sections were prepared from primary foliage leaves of RNAi-W1-7 and wild-type plants. For analysis of etioplast structure, plants were grown in darkness for 8 days. For studies of chloroplasts, plants were grown in continuous light of either 120 (B) or 320 μmol m⁻² s⁻¹ (C). Ultrastructural analyses were performed as described (Golin et al., 2020). Bars represent 500 nm.