Water pore

Japanese: water pore(英語表記)waterpore
Water pore

…In this way, the relationship between the formation of stomata and plant affinities is also important. Water pores are also used as a device to expel excess water from plants. These are located at the end of the veins at the tips and edges of leaves and are composed of two guard cells. However, the guard cells of water pores do not have any special wall thickening and do not have chloroplasts, so they do not open or close by cell deformation. The small droplets of water that accumulate at the ends of leaves in the early morning when the temperature is low are drops of water that have been expelled from the water pores. …

*Some of the terminology that mentions "water pore" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このように,気孔の形成過程と植物の類縁との関連も重視されている。また,植物体内の過剰水分を排出する装置としては水孔water poreもあるが,これは葉の先端や葉縁などの脈端にあって,2個の孔辺細胞で構成されるが,水孔の孔辺細胞には特殊な壁肥厚もなく,葉緑体ももっていないので細胞の変形による開閉は行わない。温度の低い早朝など,葉末にたまる小さな水玉は水孔から排出された水の滴である。…

※「water pore」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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