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HISTO-ANATOMICAL AND BIOCHEMICAL ASPECTS REGARDING THYMUS COMOSUS HEUFF


IRINA BERCIU, IOAN BURZO, CONSTAMTIN TOMA

Issue:

SCSB, Volume XVI

Section:

Volume XVI - Vegetal Biology

Abstract:

This paper presents the results of histo-anatomical and biochemical investigations regarding T. comosus.

The histo-anatomical research was carried out on the aerial vegetative organs; a peculiar attention has been given to the structure of the glandular hairs, which are always multicellular, consisting in a basal cell, a unicellular pedicel and a uni- or multicellular gland.

The stem has a secondary structure resulted from the activity of the cambium.

The cortex of the stem is collenchymatous in the ribs and parenchymatous of meatic type between the ribs and the ends, with an endodermis of Casparyan type.

The essential oil were extracted by hydrodistillation, the separation and identifying of their components were made using a gas-chromatograph coupled with masspectometry.

The main constituents of the essential oil are: β-caryophyllene (14,27%), germacrene D (10,73%), δ-cadinol (7,96%), spatulenol (7,10%), limonene (5,35%), α-cadinol (4,91%) and cis-β-ocimene (4,18%).

Due to the many applications of the components, the essential oil of T. comosus can be used in medical interest and as a pesticide.

Keywords:

[n/a]

Code [ID]:

SCSB200916V16S01A0010 [0003195]


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