Department of Biology, Wake Forest University, Winston-Salem, North Carolina 27109.
Plant Physiol. 1983 May;72(1):177-81. doi: 10.1104/pp.72.1.177.
A microcomputer based video image analyzer is described and demonstrated in the analysis and comparison of tissue types of 6-month-old Ethrel-treated and control seedlings of loblolly pine (Pinus taeda L.). Two different programs were employed. ;Topographer I' sought, identified, and measured cell or resin canal lumen areas, and ;Area' measured tracheid length and silhouette areas. Ethrel treatment induced an increase in radial growth and a decrease in shoot elongation and needle growth. Bark production was stimulated by the same treatment. The tracheid lumens of Ethrel-treated plants were shorter and had a smaller cross-sectional area, whereas the tracheid cell walls increased in thickness. The treatment also increased resin canal formation in the xylem.
本文介绍并演示了一种基于微机的视频图像分析系统，用于分析和比较 6 个月大小的乙烯利处理和对照的火炬松（Pinus taeda L.）幼苗的组织类型。采用了两种不同的程序。“地形仪 I' 寻找、识别和测量细胞或树脂管腔面积，而“面积”测量管胞长度和轮廓面积。乙烯利处理诱导径向生长增加，而梢端伸长和针叶生长减少。树皮的产生也受到同样处理的刺激。处理过的植物的管胞腔更短，横截面积更小，而管胞细胞壁厚度增加。该处理还增加了木质部中树脂管的形成。
