Figure 8.

Spatial distribution of PHB in a transplastomic tobacco plant grown from a T1 seed of a pCAB transformant. T1 line 2.2 (Fig. 5) was sectioned to determine the spatial distribution of PHB. A, Leaves obtained from the main stem (stem 1), side stems, bolts, and side shoots were sectioned as shown, and the dry weight of each sample was recorded. Numbers within the leaf sections indicate the PHB content (percent dry weight) of each sample as measured by GC-MS. B, Diagram illustrating the positions of stems, bolts, and side shoots in the original plant before sectioning. For purposes of simplicity, the PHB values in stem tissue were recorded as an average value obtained for the whole stem. Leaf slices designated with an “x” were not measured. [See online article for color version of this figure.]