Stroma

Japanese: stroma
Stroma

…Next is the Bowman's membrane, which is a thin, structureless layer under a microscope. Next is the stroma, which makes up the majority of the cornea's thickness. Collagen fibers, each about 300 Å thick, are arranged in layers, making them transparent and extremely strong. …

From [Chloroplasts]

...The number of chloroplasts in a mesophyll cell is usually on the order of a few dozen to a few hundred, but there are also known cases where a single cell contains several thousand chloroplasts or even just one.
[Internal structure]
The internal structure of the chloroplast is broadly divided into the envelope, the stroma enclosed by it, the membrane system contained within the stroma (thylakoids, formerly called lamellae), and other structures (Figure 1).

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…次はボーマン膜Bowman’s membraneと呼ばれ,顕微鏡的には無構造の薄い層である。次が角膜実質(固有層)stromaであり,これは角膜の厚さの大部分を占める。可視光波長よりも短い太さ約300Åのコラーゲン繊維が層構造をなして整然と並んでいて透明であり,またきわめてじょうぶにできている。…

【葉緑体】より

…葉肉細胞に含まれている葉緑体の数は通常数十~数百個程度であるが,1個の細胞に数千個以上の葉緑体が含まれる例や,ただ1個だけ含まれている例も知られている。
[内部構造]
 葉緑体の内部構造は,包膜envelopeとそれに包まれた基質(ストロマstroma)およびストロマ中に含まれる膜系(チラコイドthylakoid。かつてはラメラlamellaと呼んだ),その他の構造体に大別される(図1)。…

※「stroma」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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