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. 2015 Jun 10;66(17):5351–5365. doi: 10.1093/jxb/erv285

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© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 6. — Histochemical analysis of promoter:GUS expression using the promoters of IDA and IDL1 to IDL5 genes. (A) pIDA:GUS is expressed during lateral root emergence in endodermis (63× magnification), cortex and epidermis cells; pIDL1:GUS in columella root cap cells (40×); pIDL3:GUS and pIDL4:GUS in the vasculature and pIDL5:GUS next to the hypocotyl (20×). (B) pIDL2:GUS and pIDL3:GUS are, in contrast to pIDL1:GUS, expressed in the cotyledons 3 d after germination (40×). (C) pIDL3:GUS, pIDL4:GUS and pIDL5:GUS are expressed in the vasculature of the first true leaves, including the hydathodes (20×). (D) pIDL4:GUS is expressed in the guard cells (40×); (E) pIDL4:GUS and IDL5:GUS are expressed in the shoot apical meristem (40×), (F) pIDL2:GUS, pIDL3:GUS and pIDL4:GUS are expressed in the vasculature of flowers at developmental stage 6.0F (20×). (G) pIDL1:GUS, pIDL2:GUS and pIDL3:GUS are expressed in the vasculature in the abscission zone region after the floral organs have been shed (20×). (H) pIDL2:GUS and pIDL3:GUS are in contrast to pIDL1:GUS expressed in vestigial abscission zones at the base of pedicels and branches (20×).