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Evolutionary Structure Studies On The Part Of Plants Of Glycine In Jilin Province

Posted on:2016-04-30Degree:MasterType:Thesis
Country:ChinaCandidate:W GaoFull Text:PDF
GTID:2283330464457387Subject:Botany
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In this study, the experimental Glycine materials were collected from Jilin province(wild soybean 2013-001-01, wild soybean 2013-001-02, semi-wild soybean 2013-002, semi-cultured soybean 2013-003 and cultured soybean 2013-004), they were experimented by the paraffin section technology, the Plant Print, the optical microscopy photography and the analysis of mathematical statistical to compare their anatomical structure of vegetative organ and their apparent structure of leaves.The result of the anatomical experiment has shown that: In the suitable environment, the cultured soybean had these following characteristics compared with the others. Roots: It diameter and cortex were thicker, the phloem was more developed. It had more paratracheal parenchyma cells and pore clusters. The lengths of the ray were shorter. Stems: It diameter was thicker, the phloem was more developed. It had more trichomes, vascular bundle and vessel elements. It diameter of the pith was also thicker. Leaves: The mesophyll, palisade and primary veins were thicker, It had more trichomes and vessel elements in the primary vein vascular bundle. The diam of xylem vessels were bigger and the abnormal vascular bundle had been evolved. It had the highest CTR value and SR value. In this study, except the semi-wild soybean, we found the roots of wild soybean, semi-cultivated soybean and cultivated soybean were all the pentarch of vascular cylinder. The roots of the semi-wild were the tetrarch of vascular cylinder. The starch sheath has been found in the stem cortex of semi-cultured soybean and cultured soybean. The secretory cavity were evolved in pith and the four layers of cells were evolved in palisade tissue of cultured soybean. Above all, we can make a conclusion of evolutionary pattern of the Glycine plants from these structure characteristics. It is the wild soybean â†' semi-wild soybean â†' semi-cultured soybean â†' cultured soybean from lower to more evolutionary. Under the different ecological environment, the wild soybean 2013-001-01(under the saline stress environment) had these following characteristics compared with the wild soybean 2013-001-02(under the suitable environment). Roots: The more complete cortical tissue was retention, the developed phloem fiber become to “phloem fiber barrier”. Unlike the wild soybean 2013-001-02 of the pentarch of vascular cylinder, the wild soybean 2013-001-01 of the tetrarch of vascular cylinder evolved from the pentarch. We could find the tylosis was appeared in the vessels of the secondary xylem, a large number of paratracheal parenchyma cells and the lengths of the ray were shorter. Stem: The diameter was thicker, the phloem fiber was developed, the diameter of vessels and the diameter of pith were larger. Leaves: The more developed mechanical tissue, the more orderly and closed cells of the mechanical tissue, the more vessel elements in the primary vein vascular bundle, the high CTR value and the abnormal vascular bundle was appeared. The conclusions were as follows through these characteristics: The structure of antagonism to the saline stress appeared in the wild soybean 2013-001-01 which had a better adaptability for environment of salt stress.The result of the Plant Print has shown that: the leaves of different soybeans had the same characteristics, the type of subsidiary cells was phagocytic anxiolytic, the type of wall epidermal cells was A and the trichomes were unicellular. High Similar properties of all the soybeans were expressed by the similar characteristics of the Plant Print. The length of the sequence was wild soybean<semi-wild soybean<semi-cultured soybean<cultured soybean, although all the lengths of guard cell were between MS and M. A greater difference has been shown after mathematical statistics. The correlation and the mean characteristics of the Plant Prints after quantization were different from each other. They have established their own regression equation。Based on the different characteristics of the Plant Print, we can find a method to resolve the classification problem of Glycine.
Keywords/Search Tags:Glycine, Anatomical Structure, Plant Print, Phylogeny Evolution, Classification, Antagonism to the Saline Stress
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