Запасающая паренхима

Запасающая паренхима, или запасающая ткань, — паренхима (основная ткань), выполняющая функцию хранения и запаса питательных веществ. Обычно сосредоточена в сердцевине многолетних стеблей, в луковицах, клубнях и корневищах, в плодах и семенах[1].

В качестве запасных веществ, откладывающихся в тканях запасающей паренхимы, могут быть инулин, крахмал и другие сахара, белки и жиры[1].

Слои паренхимных клеток, которые пересекают древесину и луб стеблей и корней двудольных растений, называются сердцевинными лучами. Они осуществляют перемещение веществ в горизонтальном направлении[2].

Примечания

  1. ↑ 1 2 Коровкин О. А. Анатомия и морфология высших растений: словарь терминов. — М.: Дрофа, 2007. — С. 61. — 268, [4] с. — (Биологические науки: Словари терминов). — 3000 экз. — ISBN 978-5-358-01214-1.
  2. ↑ Сердцевинные лучи // Сафлор — Соан. — М. : Советская энциклопедия, 1976. — (Большая советская энциклопедия : [в 30 т.] / гл. ред. А. М. Прохоров ; 1969—1978, т. 23).

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