Figure 7.

Effects of the overexpression of VIP1-SRDX on the outermost root cap layers. A, Categorization of the conditions of the outermost root cap layers. The wild type (WT) and two transgenic lines overexpressing the VIP1-SRDX fusion protein (VIP1-SRDXox #4 and #7) were grown for 1 week on an agar medium tilted at a 45° angle. Representative images of the root tips are presented for each line and category for the conditions of the outermost root cap layers. B, Proportions of the root cap layers classified into each category. The images in A were used to classify the conditions of the outermost root cap layers. VIP1-SRDXox #10 plants also were grown and photographed as described in A. The number of plants in each category is provided in Table I. The indicated percentages were calculated based on these numbers.