Figure 6.

Number of Leaf-Like and Stipule/Scale-Like Organs in Apical Buds of P. tremula × P. alba after 6 Weeks of Short-Day Treatment in Wild-Type, PtABI3-Overexpressing (S8, S11, and S16), and Antisense (AS3, AS18, AS22, and AS29) Lines.

The number of organs irrespective of size was counted in serial microscopic sections of a bud and is expressed as average number ± se. The number of buds analyzed per line is given in brackets. wt, wild type.

(A) Number of leaf-like (embryonic leaves; dark gray) and stipule/scale-like (bud scales and stipules; light gray) organs per bud, given with decreasing number of leaf-like organs.

(B) Index of stipules per leaf as calculated by dividing the number of stipules by the number of embryonic leaves, given with decreasing index.