HISTOCHEMICAL VISUALIZATION OF THE PATTERN OF STARCH DEPLETION IN EASTER LILY SCALES
Starch localization in bulb scales of Lilium longiflorum Thunb. 'Nellie White' was studied to determine the physical pattern of starch hydrolysis during bulb reserve export. Prior to onset of significant starch depletion, and export, staining was uniform throughout the scale cross-section. In the initial stages of reserve hydrolysis, starch was preferentially utilized in the peripheral areas of the scale, as judged by an absence of staining in the outer scale areas. At penultimate stages of scale depletion, staining was seen in the central area of the scale, in cells adjacent to vascular bundles. Eventually, even this starch was utilized as no staining was seen in the final stages of depletion. The results are discussed in relation to other leaf and storage organ systems in which patterns of starch mobilization have been studied.
Miller, W. B. (1992). HISTOCHEMICAL VISUALIZATION OF THE PATTERN OF STARCH DEPLETION IN EASTER LILY SCALES. Acta Hortic. 325, 297-302