竹笋期竹箨和笋体的日间蒸腾特性及其对水分运输的影响

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李唐吉¹, 王懋林¹^,², 曹颖¹^,^*(

), 徐刚¹, 杨琪祺¹, 任思源¹, 胡尚连¹^,²^,^*(

)

Diurnal transpiration of bamboo culm and sheath and their potential effects on water transport during the bamboo shoot stage

LI Tang-Ji¹, WANG Mao-Lin¹^,², CAO Ying¹^,^*(

), XU Gang¹, YANG Qi-Qi¹, REN Si-Yuan¹, HU Shang-Lian¹^,²^,^*(

)

图2. 慈竹不同发育阶段笋体(茎秆)的气孔形态。A-F, 不同高度竹笋茎秆基部形态。基部第一节间正在伸长(A, B); 基部第一节间完全伸长, 节间部分露出竹箨(C, D), 箭头指向节间露出位置(C); 基部第一节间成熟, 竹箨松动并开始脱落(E, F), 箭头指向竹箨松动处(E)。B, D, F中的方框为取样部位, 箭头指向气孔, 虚线以上为无根节, 虚线以下为有根节。G-L, 扫描电镜下竹笋茎秆基部第一节间的气孔形态。G-I分别为节间的伸长期, 完全伸长期和成熟期; J-L分别为G-I中方框位置的局部放大图。

Fig. 2. Stoma morphology of shoot body (culm) at different development stages of Bambusa emeiensis. A-F, the morphology of basal bamboo shoots with different height, in elongating (A, B), elongated fully (C, D), and mature (E, F) stages respectively in the first basal internodes. Above the dotted line are rootless nodes, below the dotted line are rooted nodes (B, D, F). The arrow in C points to the culm exposed from the culm sheath; arrow in E, to the loose position of the culm sheath. G-L, the stomatal morphology, under scanning electron microscope, in elongating (G), elongated fully (H), and mature (I) stages respectively in the first basal internode, the arrow points to the stomata. J-L, enlarged pictures of the boxes in G-I, respectively.