Healing properties, toxicity and economical value of gymnosperms

Čukelj, Dora (2014) Healing properties, toxicity and economical value of gymnosperms. Bachelor's thesis, Faculty of Science > Department of Biology.

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Abstract

The gymnosperms are a group of woody plants that contains about 800 different species. The biggest and most famous group of the gymnosperms are conifers (subclass Pinidae). Flowers of the gymnosperms are monosexual on monoecious or dioecious. The gymnosperm's principal generation phase is sporophyte. The tallest (Sequoia sempervirens (D.Don) Endl.), most massive (Sequoiadendron giganteum (Lindl.) J.Buchh) and the oldest (Pinus longaeva D.K. Bailey) plants on Earth are the ones from group of the gymnosperms. Cells of the gymnosperms contain a great number of chemical compounds. The most famous chemical compounds found in the gymnosperms are alkaloids, flavonoids, glycosides, tannins and terpenes. Those are secundary compounds of plant metabolism, which means that they are not essential for life of plant cells. However, secundary compounds are essential for survival and adjustments of the plant on different environmental conditions. The greatest economical importance of the gymnosperms is their use in paper industry, furniture industry and their use as building material. Some of the world’s most important poisonous, healing and economicaly important species of the gymnosperms are Cycas revoluta Thunb., Ginko biloba L., Ephedra sp., Taxus sp. and Pinus strobus. While Ephedra sp., Taxus sp. and Cycas revoluta Thunb. are known for their poisonous and healing benefits, Ginko biloba L. is famous for its medical use, endurance and horticultural value. Pinus strobus is one of the economically most valuable conifer trees of eastern part of Northern America.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Liber, Zlatko
Date: 2014
Number of Pages: 16
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 13 Nov 2014 12:47
Last Modified: 13 Nov 2014 12:47
URI: http://digre.pmf.unizg.hr/id/eprint/3265

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