MCD BIO C141 Chapter Notes - Chapter N/A: Stoma, Plasmodesma, Callose
19 May 2020
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Is movement capacity: stomata are pores on the abaxialized portion of the leaf. S5)] and corrected forlowerdensity offunctionalstomata in sid (fig. S6) is also only half of wild type (wt)(sid,0. 20 0. 01molh 2om 2 s 1;wt,0. 38 0. 03 mol h2om 2 s 1) (fig. 4c): punctate patterns of callose staining a marker for plasmodesmata (14) around gmcs (fig. 3e: yfp-bdmute expressed in arabidopsis with the gmc-specific atmute promoter (13) was visible in the neighbor cells, unlike gmc-only expression of atmute-yfp (fig. 3,g and h, and fig. S3), and bdmute-yfp signal in neighbors is not just a consequence of differential protein stability (fig. S3e): wt stomata quickly responded to changing light conditions, whereas both reaction times and amplitudes of the response were dampened in sid (fig. 4e): suggested that bdmute is sufficient to specify smc identity throughout the leaf, secondary plasmodesmata connecting the nonsister gmcs and smcs area available route of transport. In summary, sid stomata lacking scs cannot open as wide (gsmax) (fig.
