倭竹（禾本科—竹亚科）长寿叶片中二氧化硅的积累
Silica accumulation in long-lived leaves of Sasa veitchii (Carrière) Rehder (Poaceae-Bambusoideae).
作者信息
Motomura H, Mita N, Suzuki M
机构信息
The Botanical Garden, Graduate School of Science, Tohoku University, Sendai, Japan.
出版信息
Ann Bot. 2002 Jul;90(1):149-52. doi: 10.1093/aob/mcf148.
Abstract
Silica accumulation in long-lived leaves of Sasa veitchii was investigated using the molybdenum blue method. In general, silica accumulation was rapid during spring and summer, and slow during winter. The leaves continuously accumulate silica throughout their life. The significance of these observations is discussed in relation to two hypotheses for silica accumulation in plants: (1) that silica accumulation is a result of water consumption by the plant: and (2) that silica is actively accumulated to protect the plant. The results of the present study support the former hypothesis.
摘要
采用钼蓝法对翠竹长寿叶片中的硅积累进行了研究。一般来说，硅的积累在春季和夏季较快，而在冬季较慢。叶片在其整个生命周期中持续积累硅。结合关于植物硅积累的两个假说对这些观察结果的意义进行了讨论：（1）硅积累是植物水分消耗的结果；（2）硅是为保护植物而主动积累的。本研究结果支持前一个假说。
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