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‘晚银桂’的小孢子发生和雄配子体发育(PDF/HTML)

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

Issue:
2015年04期
Page:
44-50
Column:
研究论文
publishdate:
2015-07-20

Article Info:/Info

Title:
The microsporogenesis and the development of male gametophyte in Osmanthus fragrans ‘Wanyingui’
Article ID:
1000-2006(2015)04-0044-07
Author(s):
DONG Lige12 DING Yulong13*WANG Xianrong2 HU Bo2
1. Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China;
2.College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China;
3. Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
Keywords:
Osmanthus fragrans ‘Wanyingui’ microsporogenesis male gametophyte
Classification number :
S718
DOI:
10.3969/j.issn.1000-2006.2015.04.008
Document Code:
A
Abstract:
The microsporogenesis and development of male gametophytes of Osmanthus fragrans‘Wanyingui’ were studied by paraffin-embedded sectioning and photomicrography technique. The results showed that each floret of inflorescence usually has two fertile stamens,few have three. Each anther has four locules. The development of anther walls was classified as dicotyledonous, and the tapetum was of glandular heterotypic,its cells had one or two nuclears. The meiosis of microspore mother cell was synchronous or asynchronous. There were obvious asynchronous phenomenon in the different pollen sac, and the phenomenon covered all of the period. In addition even found asynchronous phenomenon in a same pollen sac occasionally, and considered that because of poor coordination within the anther development.The cytokinesis was simultneaous type. The microspore tetrad was tetrahedral more, minority fordecussate. Maturepollen grains were 2-celledtype, nearly round and with three grooves. Occasionally there were abortive phenomenons during the development.

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Last Update: 2015-07-31