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Effect of Exogenous Brassinolide on Growth and Anatomical Characteristics for Stems and Leaves of Dwarf Pear in vitro (PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年11期
Page:
7-11
Research Field:
Publishing date:

Info

Title:
Effect of Exogenous Brassinolide on Growth and Anatomical Characteristics for Stems and Leaves of Dwarf Pear in vitro
Author(s):
CHEN Bao-yinWANG Cai-hongCHU Qing-gangTIAN Yi-keSUN Jing-xianXU Yan-shuai
College of Horticulture,Qingdao Agricultural University,Qingdao,Shandong 266109
Keywords:
brassinolidedwarf pearplantletgrowth characteristicsanatomical structures
PACS:
S 661.2
DOI:
-
Abstract:
Taking dwarfing pear of tube seedling as material,different concentrations of exogenous brassinolides (BR)(0.001,0.010,0.100,1.000 mg/L)were added to the media and the effect on phenotypes of the plantlets in vitro were observed,with no added BR as control,in order to reveal the relationship between the dwarf trait of pear and BR.The results showed that the higher concentration of BR increased the height and internode length of the plantlet.Furthermore,by the technique of paraffin section,it was observed that the treatment of 1.000 mg/L BR distinctively accelerated the differentiation of vascular bundles in stems and primary veins of leaves,and increased the density of mesophyll cells and the thickness of cuticle.

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Last Update: 2014-08-04