CO2浓度倍增对红松幼苗根尖和叶解剖结构及生理功能的影响
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王娜, 张韫, 钱文丽, 王政权, 谷加存
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Effects of elevated CO2 concentration on root and needle anatomy and physiological functions in Pinus koraiensis seedlings
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WANG Na,ZHANG Yun,QIAN Wen-Li,WANG Zheng-Quan,GU Jia-Cun
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| 表2 不同CO2浓度处理对红松幼苗根尖解剖结构的影响(平均值±标准误差) |
| Table 2 Effects of different CO2 concentration treatments on root tip anatomy of Pinus koraiensis seedlings (mean ± SE) |
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| CO2浓度 CO2 concentration | p | | 350 µmol·mol-1 | 700 µmol·mol-1 | | 根尖直径 Root tips diameter (µm) | 400.68 ± 10.90 | 453.79 ± 15.94 | < 0.01 | | 中柱直径 Stele diameter (µm) | 216.23 ± 7.59 | 228.83 ± 12.13 | 0.38 | | 皮层层数 Cortical layer number (No.) | 4.77 ± 0.11 | 5.87 ± 0.12 | < 0.01 | | 皮层厚度 Cortical thickness (µm) | 79.39 ± 2.11 | 99.19 ± 2.88 | < 0.01 | | 皮层细胞面积 Cortical cell area (µm2) | 464.17 ± 18.06 | 525.72 ± 21.36 | < 0.05 | | 管胞数 Tracheid number (No.) | 25.23 ± 0.76 | 24.03 ± 0.81 | 0.28 | | 管胞直径 Tracheid diameter (µm) | 12.18 ± 0.21 | 11.41 ± 0.21 | < 0.05 | | 管胞密度 Tracheid density (No.·µm -2) | 0.0008 ± 0.00006 | 0.0007 ± 0.00006 | 0.09 | | 管胞壁厚度 Tracheid wall thickness (µm) | 0.92 ± 0.02 | 1.08 ± 0.03 | < 0.01 |
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