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|Table of Contents|

厚壁毛竹与毛竹地下茎发育规律的比较(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2018年02期
Page:
197-201
Column:
研究简报
publishdate:
2018-03-20

Article Info:/Info

Title:
Morphological and cellular characterization of rhizome development of Phyllostachys edulis ‘Pachyloen'and Phyllostachys edulis
Article ID:
1000-2006(2018)02-0202-05
Author(s):
WEI Qiang1 GAO Zhipeng1 CHEN Ming1 CAO Junjie1 GUO Lin1 YU Fen3 YANG Guangyao3 DING Yulong1*
1. Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China; 2. Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Jiangxi Agriculture University, Nanchang 330045, China
Keywords:
Keywords:moso thick wall moso shoot apical meristem rhizome vascular tissue formation pith tissue
Classification number :
S718.3; S795
DOI:
10.3969/j.issn.1000-2006.201611021
Document Code:
A
Abstract:
【Objective】The present study aims to disclose the cellular mechanism underlying the thick wall phenotype with small pith cavity of the Phyllostachys edulis ‘Pachyloen' rhizome. 【Method】A paraffin section observation was used to compare the cell structure. Gielis' superellipse equation was used to precisely analyze the morphology of the shoot apical meristem(SAM)of the thick wall variant and wild-type(WT)moso plants.【Results】The results revealed that the apical meristem of the thick wall variant, which is thinner and longer with a larger area and more cells, does not differentiate into any visible pith tissues. However, it does differentiate into more vascular tissues. Outlines of the apical meristems of both the thick wall variant and WT moso plants could be precisely described by the superellipse formula. However, the angle between the horizontal axis and the major axis of the thick wall variant was near 90 degrees, whereas that of the WT moso was about 45 degrees. Additionally, the SAM cell morphology of the thick wall variant was more regular with a denser protoplasm than that of the WT moso.【Conclusion】Our results indicated that the abnormal structure of the SAM of the thick wall variant moso possibly results in its solid rhizome internode phenotype.

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Last Update: 2018-06-12