Cells chloroplasts collenchyma occurs layers hypodermis dicotyledonous stems

Collenchyma occurs in layers as hypodermis in most dicotyledonous stems, with thickened corners of cellulose, hemicellulose, and pectin; it can assimilate food when containing chloroplasts and provides mechanical support to young parts.

La collenchima si trova nell'ipoderma dei fusti dicotiledoni, con angoli ispessiti di cellulosa, emicellulosa e pectina; può assorbire cibo se contiene cloroplasti e fornisce supporto meccanico alle parti giovani.

Text	The collenchyma occurs in layers as the hypodermis in most of the dicotyledonous stems. It is found either as a homogeneous layer or in patches. It consists of cells which are much thickened at the corners due to a deposition of cellulose, hemicellulose and pectin. Collenchymatous cells may be oval, spherical or polygonal and often contain chloroplasts. These cells assimilate food when they contain chloroplasts. Intercellular spaces are absent. They provide mechanical support to the growing parts of the plant such as young stem and petiole of a leaf.

Text

The collenchyma occurs in layers as the hypodermis in most of the dicotyledonous stems. It is

found either as a homogeneous layer or in patches.

It consists of cells which are much thickened at the

corners due to a deposition of cellulose,

hemicellulose and pectin. Collenchymatous cells

may be oval, spherical or polygonal and often

contain chloroplasts. These cells assimilate food

when they contain chloroplasts. Intercellular spaces

are absent. They provide mechanical support to the

growing parts of the plant such as young stem and

petiole of a leaf.

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