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5. 番红溶液在快速伸长的节间扩散(基部第5节间, Int5)。A, B, 正在伸长节间组织的横切和纵切石蜡切片。A中可见大量的薄壁细胞(PC), B中木质部导管(V)连续。C, H, 0.5%番红溶液处理1 h和4 h时茎秆中番红扩散情况。D-G, 处理1 h时徒手切片中番红扩散情况; I-L, 处理4 h时徒手切片中番红扩散情况. D, E, I, J, 白光下的横切和纵切图; F, G, K, L, 红色滤光片(510-560 nm)下的番红荧光。

Fig. 5. Diffusion of safranine solution in the rapid elongating bamboo shoot (5th internode at base, Int5). A, B, the paraffin section in the elongating internodes. A, a large number of parenchymal cells (PC) are shown, and B shows the continuous xylem vessel (V). C, H, the diffusion of safranine in culm as treated with 0.5% safranine solution for 1 h and 4 h, respectively. D-G, I-L, the diffusion of safranine in the freehand section were showed after 1 h and 4 h treatment, respectively. D, E, I and J, the transverse and longitudinal sections respectively under white light, while F, G, K and L, the corresponding safranine fluorescence under the red filter (510-560 nm) respectively.