热带喀斯特季节性雨林12个树种木质部栓塞抗性与其解剖结构及相关性状间的关系

马琳, 巢林, 何雨莎, 李忠国, 王爱华, 刘晟源, 胡宝清, 刘艳艳

Relationship of embolism resistance with xylem anatomical structure and related traits of 12 tree species in tropical karst seasonal rainforests

MA Lin, CHAO Lin, HE Yu-Sha, LI Zhong-Guo, WANG Ai-Hua, LIU Sheng-Yuan, HU Bao-Qing, LIU Yan-Yan

图2 热带喀斯特季节性雨林植物木质部导管组分与纹孔。A, 光学显微镜下的各组织细胞。紫色箭头是导管, 红色箭头是射线薄壁细胞, 绿色箭头是轴向薄壁细胞, 黄色框中是纤维。B, 扫描电子显微镜下的非覆物纹孔。红色实线代表纹孔膜, 虚线代表纹孔口。C, 扫描电子显微镜下的覆物纹孔。D, 透射电镜下的纹孔膜结构。蓝色箭头依次代表纹孔腔深度(Lp)和纹孔膜厚度(Tm)。

Fig. 2 Xylem tissue components and pits of plants in tropical karst seasonal rainforest. A, Various tissue cells under an optical microscope. Purple, red, green arrows and the yellow box represent the vessel, ray parenchyma, axial parenchyma, and fiber, respectively. B, Non-vestured pits under a scanning electron microscope. Red solid and dashed lines represent the pit membrane and the pit aperture, respectively. C, Vestured pits under a scanning electron microscope. D, Pit membrane under an transmission electron microscopy. Blue arrows are the depth of pit cavity (Lp) and the thickness of pit membrane (Tm).