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Bulletin of Botanical Research ›› 2009, Vol. 29 ›› Issue (2): 141-146.doi: 10.7525/j.issn.1673-5102.2009.02.005

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The Anatomical Study on Vegetative Organs of Endangered Plant Tugarinovia mongolica

MA Hong;ZHENG Ya-Ming;CAO Rui;SUN Ya-Yuan   

  1. (College of Life Science,Inner Mongolia University,Huhhot 010021)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-03-20 Published:2009-03-20
  • Contact: MA Hong
  • Supported by:

Abstract: The morphological features and anatomical structures of Tugarinovia mongolica were studied by means of traditional paraffin wax sections. The result showed: The leaf belongs to equilateral leaf. Each epidermis consists of a row of epidermis cells, which are arranged closely. There are many irregular stomata which exist in both higher and lower epidermis. Its palisade tissue is composed of 1 layer cells and the spongy tissue consists of 2~3 layers cells which arranged loosely. The primary structure of stem consists of epidermis, cortex and vascular cylinder. The developed pith is in the center of stem. But the root does not have this structure, which contains periderm, cortex and vascular cylinder. Many secretory structures exist in parenchyma of the root and stem. It was found that the vegetative organs of T. mongolica contain proteins by the reaction of coomassie brilliant blue. In addition, it was discussed that these structures were in conformity with the ecological environment it was located.

Key words: Tugarinovia mongolica, vegetative organs, anatomical structure

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