[1]蒋恕,黄金生.杉木小孢子发育过程中细胞的超微结构——Ⅱ.四分体、小孢子、绒毡层[J].南京林业大学学报(自然科学版),1989,13(02):009-12.[doi:10.3969/j.jssn.1000-2006.1989.02.002]
 Jiang Shu Huang Jinsheng(Department of Forestry).ULTRASTRUCTURE AND DEVELOPMENT OF THE MICROSPORE IN CUNNINGHAMIA LANCEOLATA (LAMB.) HOOK——Ⅱ. TETRADS, MICROSPORE, AND TAPETUM[J].Journal of Nanjing Forestry University(Natural Science Edition),1989,13(02):009-12.[doi:10.3969/j.jssn.1000-2006.1989.02.002]
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杉木小孢子发育过程中细胞的超微结构——Ⅱ.四分体、小孢子、绒毡层
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
13
期数:
1989年02期
页码:
009-12
栏目:
研究论文
出版日期:
1900-01-01

文章信息/Info

Title:
ULTRASTRUCTURE AND DEVELOPMENT OF THE MICROSPORE IN CUNNINGHAMIA LANCEOLATA (LAMB.) HOOK——Ⅱ. TETRADS, MICROSPORE, AND TAPETUM
文章编号:
1000-2006(1989)02-0009-04
作者:
蒋恕;黄金生
南京林业大学林学系;南京林业大学电镜室
Author(s):
Jiang Shu Huang Jinsheng(Department of Forestry)
Electron Microscopic Rroom
关键词:
杉木超微结构四分体小孢子绒毡层
Keywords:
Cunninghamia lanceolata Ultrastructure Tetrad Microspore Tapetum
DOI:
10.3969/j.jssn.1000-2006.1989.02.002
文献标志码:
A
摘要:
<正>研究发现杉木四分体属同时型。四分小孢子时期细胞质极浓厚,细胞质的代谢活动旺盛,外壁内层直接由细胞质分泌物形成。游离小孢子分为收缩期和液泡期,进入液泡期出现大的中央液泡,小孢子体积显著增大。小孢子时期绒毡层细胞出现大量膜内褶,形成港湾结构;小孢子发育后期,绒毡层细胞内出现大量髓鳞脂体以及自体吞噬泡。研究表明,杉木小孢子发育过程中代谢作用十分旺盛;细胞结构变化明显;绒毡层参与小孢子壁的形成。
Abstract:
In this paper, based on a ultrastructure level, structure changes of the tetrads, microspore, and tapetum during the development process of the microspore in Cunninghamia lanceolata (Lamb.) Hook are investigated. It shows that the tetrads are simultaneous type, cytoplasm of the microspore tetrds is extremely dense, metablism of cytoplasm is very active, and endexine is directly formed by the secretory substances of cytoplasm. The free microspores belong to the constricted stage and vacuolar stage respectively. Occurrence of the large central vacuole and rapidly increasing volume of the microspore are followed by the vacuolar stage. The tapetum has its own changes. Numerous endoplicates which form a "bayed-stracture" on the membranece occur during the free microspore stage. In the late development process of the microspore, there are a large number of myelin-like bodies and autophagia vacuoles. It seems that metablism is considerably active and changes of the cellular structure are conspicuous. The tapetum in Cunninghamia lanceolata narticipates in wall formatoin of the microspore.

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更新日期/Last Update: 1900-01-01