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. 2018 Feb 15;74(10):2265–2276. doi: 10.1002/ps.4823

Figure 8.

PS-4823-FIG-0008-c

Arrangement of auxin transport proteins. The plasma membrane of plant cells contains uptake carriers such as AUX1, which facilitate accumulation of IAA and 2,4‐D inside the cytoplasm. To drive polar auxin transport, two distinct families of auxin efflux proteins are situated on the polar basal sides of the cell and in the plasma membrane.