Difference Analysis on Stem and Leaf Anatomical Structure of  Different Ploidy Psammosilene tunicoides(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Difference Analysis on Stem and Leaf Anatomical Structure of  Different Ploidy Psammosilene tunicoides

Author(s):: XIN Yalong1; 2; KUANG Fan3; TANG Junrong1; 2; QIU Fen1; 2; LI Bin1; 2; XIN Peiyao1; 2; (1.Key Laboratory for Forest Genetic and Tree Improvement & Propagation in Universities of Yunnan Province,Southwest Forestry University,Kunming,Yunnan 650224;2.Key Laboratory of Biodiversity Conservation in Southwest Region of China，State Forestry Administration，Southwest Forestry University，Kunming，Yunnan 650224;3.College of Life and Environmental Sciences，Gannan Normal University,Ganzhou,Jiangxi 341000)

Keywords:: Psammosilene tunicoides; ploidy; leaf; stem; anatomical structure

Abstract:: Two tetraploid(T1,T2) Psammosilene tunicoides and one diploid Psammosilene tunicoides(CK) were used as materials to observe the anatomical structure difference in different ploidy with paraffin method.The results demonstrated that the significant difference were existed in stem and leaf anatomical structure of different ploidy P.tunicoides tissue culture seedlings.The different ploidy P.tunicoides tissue culture seedlings had no obvious differentiation on both palisade tissue and spongy tissue.The blade thickness of the polyploidy material of T1 and T2 were 1.77,1.60 times of diploid;the thickness of leaf primary vein were 2.34,1.67 times of the diploid;the diameter cross-cutting size of T2 stem was 1.40 times of the diploid，and the cross-cutting size of stem catheter of T1 and T2 were 1.81，1.23 times of the diploid;the cross-cutting size of stem hollow in T1 and T2 were 1.80,1.73 times of the diploid.Obviously，significant variation had taken place in the anatomical structure of stem and leaf after being polyploidized.Theoretical reference would be provided to Polyploid Breeding of P.tunicoides from these results.

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Last Update: 2017-05-08