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. 2016 Dec 27;114(2):E245–E254. doi: 10.1073/pnas.1613199114

Fig. 2.

Fig. 2.

HB21, HB40, and HB53 are expressed in axillary buds. GUS activity in axillary buds of transgenic HB21p:GUS (A–C), HB40p:GUS (D–J), and HB53p:GUS (K–Q) lines. HB21p:GUS leaf vascular tissue stained at the position where the axillary meristem will initiate (A), underneath young axillary meristem (B), and at the inner layers of young axillary buds but absent from leaf primordia (C). (D–G) HB40p:GUS activity is present in the axillary meristem but is excluded from leaf primordia. (H–J) In HB40p:GUS older axillary buds, GUS signal is restricted to the base of the bud (arrowheads). (K–M) HB53p:GUS activity in young axillary meristems. (N–Q) HB53p:GUS activity at the base of leaf primordia in buds (arrowheads). K, O, and Q are sections of stained material embedded in plastic. am, axillary meristem; lf, leaf; lp, leaf primordia; sam, shoot apical meristem.