(resin canal, resin resin duct) is a secreted road. The cell is composed of secretory epithelial secretory resin resin. See Yu Songke (Pinaceae), Umbelliferae (Umbelliferae), Araliaceae (Araliaceae) etc..
Resin canal Resin profile resin
Resinduct also called Resincanal"
The leaves contain a resin pipe, called resin pipe.
In pine needles, lateral secretory epithelial cells are surrounded by thick walled cells. In the Pinaceae widely distributed in leaf, stem and root tissues, wood ray etc., which exist in the special resin called ray ray. Abies (Abies) stem injury, can produce a new resin in the vicinity of the wound, and pine (Pinus) produces a new resin in the parenchyma of the left in. Fir
Genus and Hemlock spruce
Genus (Tsuga) in the roots have a central visible resin. In addition, Spruce
Genus (Picea), larch
Genus (Larix) in two primary xylem can see a resin, but Taxodiaceae (Taxodiaceae), cypress branch is absent.
Resin canal classification
There are four kinds: exogenous type, type, endogenous, schizogenous.
They don't area are as follows:
Exogenous type: also called the "edge", on the lower crust with the cell edge, for example Masson
Endogenous resin: resin duct connected with the endothelial layer, by a bundle sheath; for example, slash pine;
In: located in the middle of mesophyll leaf resin Parenchyma
No, and the endothelial layer is not connected with the underlying layers, such as Korean pine
Schizogenous: also called the "amphitropous type" in the series of skin cells and endothelial layer formed between the lower layer Separate
For example, tropical pine.