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Anatomical investigations on root, stem, and leaf of Gentiana olivieri Griseb.

Tüzün CY, Toker MC, Toker G - Pharmacogn Mag (2011)

Bottom Line: Gentiana olivieri Griseb. (Afat) (Gentianaceae), which has many bioactive compounds is used as antidiabetic, hepatoprotective, digestive aid, antidepressant, and antianemic in traditional medicine.Anatomical characters of the species were observed to be similar to the usual features of Gentianaceae anatomy.Intraxylary phloem, which was primarily the distinguishing feature between Gentianoideae and Menyanthoideae sub-families was observed in G. olivieri roots.

View Article: PubMed Central - PubMed

Affiliation: Ankara University, Science Faculty, Department of Biology, Tandogan, 06100, Ankara, Turkey.

ABSTRACT

Background: Gentiana olivieri Griseb. (Afat) (Gentianaceae), which has many bioactive compounds is used as antidiabetic, hepatoprotective, digestive aid, antidepressant, and antianemic in traditional medicine.

Materials and methods: Root, stem, and leaf sections of G. olivieri were taken free hand or by sliding microtome and examined on light microscope.

Results: Anatomical characters of the species were observed to be similar to the usual features of Gentianaceae anatomy.

Conclusion: Intraxylary phloem, which was primarily the distinguishing feature between Gentianoideae and Menyanthoideae sub-families was observed in G. olivieri roots.

No MeSH data available.


a, b. Cross-section of root c. Central cylinder of the root. Epidermis (e), cortex (co), sclerenchyma (sc), endodermis (en), pericycle (pe), phloem (ph), xylem (x), intraxylary phloem (xph).
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Figure 0002: a, b. Cross-section of root c. Central cylinder of the root. Epidermis (e), cortex (co), sclerenchyma (sc), endodermis (en), pericycle (pe), phloem (ph), xylem (x), intraxylary phloem (xph).

Mentions: The root system of G. olivieri consisted of thick, fleshy storage roots from which fibrous adventitious roots grew out, like G. asclepiadea.[27] Root hairs were absent. The outer surface of root was covered by a single layer epidermis, which consisted of thin layered, crushed, and broke up isodiametric shaped cells. Epidermis was papillose. Cortex was multi-layered. Its cells were also crushed and had large intercellular spaces. Mycorrhiza was present in the root system.[19] There were sclerenchyma cells and bundles in the area of the contact point of adventitious roots [Figure 2a]. Endodermis was well defined and consisted of longitudinally elongated cells. Casparian strips were observed in anticlinal walls of endodermis cells [Figure 2b]. Some of the cells of endodermis were completely thickened. Pericycle was 1–2 layered. The central cylinder was composed of multi-layered cells, which had radial symmetry. Vascular bundles were collateral, diarch, and had not a cambium. Very broad parenchymatic phloem was present in interfascicular area. These cells also showed radial symmetry [Figure 2a,c]. Sieve-tube elements and companion cells were very rare and adjacent to xylem zone. Intraxylary phloem between xylems was present in pith as mentioned in the “Anatomy of the Dicotyledones”.[19]


Anatomical investigations on root, stem, and leaf of Gentiana olivieri Griseb.

Tüzün CY, Toker MC, Toker G - Pharmacogn Mag (2011)

a, b. Cross-section of root c. Central cylinder of the root. Epidermis (e), cortex (co), sclerenchyma (sc), endodermis (en), pericycle (pe), phloem (ph), xylem (x), intraxylary phloem (xph).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3065163&req=5

Figure 0002: a, b. Cross-section of root c. Central cylinder of the root. Epidermis (e), cortex (co), sclerenchyma (sc), endodermis (en), pericycle (pe), phloem (ph), xylem (x), intraxylary phloem (xph).
Mentions: The root system of G. olivieri consisted of thick, fleshy storage roots from which fibrous adventitious roots grew out, like G. asclepiadea.[27] Root hairs were absent. The outer surface of root was covered by a single layer epidermis, which consisted of thin layered, crushed, and broke up isodiametric shaped cells. Epidermis was papillose. Cortex was multi-layered. Its cells were also crushed and had large intercellular spaces. Mycorrhiza was present in the root system.[19] There were sclerenchyma cells and bundles in the area of the contact point of adventitious roots [Figure 2a]. Endodermis was well defined and consisted of longitudinally elongated cells. Casparian strips were observed in anticlinal walls of endodermis cells [Figure 2b]. Some of the cells of endodermis were completely thickened. Pericycle was 1–2 layered. The central cylinder was composed of multi-layered cells, which had radial symmetry. Vascular bundles were collateral, diarch, and had not a cambium. Very broad parenchymatic phloem was present in interfascicular area. These cells also showed radial symmetry [Figure 2a,c]. Sieve-tube elements and companion cells were very rare and adjacent to xylem zone. Intraxylary phloem between xylems was present in pith as mentioned in the “Anatomy of the Dicotyledones”.[19]

Bottom Line: Gentiana olivieri Griseb. (Afat) (Gentianaceae), which has many bioactive compounds is used as antidiabetic, hepatoprotective, digestive aid, antidepressant, and antianemic in traditional medicine.Anatomical characters of the species were observed to be similar to the usual features of Gentianaceae anatomy.Intraxylary phloem, which was primarily the distinguishing feature between Gentianoideae and Menyanthoideae sub-families was observed in G. olivieri roots.

View Article: PubMed Central - PubMed

Affiliation: Ankara University, Science Faculty, Department of Biology, Tandogan, 06100, Ankara, Turkey.

ABSTRACT

Background: Gentiana olivieri Griseb. (Afat) (Gentianaceae), which has many bioactive compounds is used as antidiabetic, hepatoprotective, digestive aid, antidepressant, and antianemic in traditional medicine.

Materials and methods: Root, stem, and leaf sections of G. olivieri were taken free hand or by sliding microtome and examined on light microscope.

Results: Anatomical characters of the species were observed to be similar to the usual features of Gentianaceae anatomy.

Conclusion: Intraxylary phloem, which was primarily the distinguishing feature between Gentianoideae and Menyanthoideae sub-families was observed in G. olivieri roots.

No MeSH data available.