棉花竹花形态与结构研究

doi:10.7525/j.issn.1673-5102.2019.06.001

植物研究 ›› 2019, Vol. 39 ›› Issue (6): 801-807.doi: 10.7525/j.issn.1673-5102.2019.06.001

• 研究报告 • 下一篇

棉花竹花形态与结构研究

邓琳^1,2, 黄玲¹, 初彩华¹, 王茜¹, 詹卉¹, 王曙光¹

1. 西南林业大学生命科学学院, 昆明 650224;
2. 毕节第三实验高级中学, 毕节 553100

收稿日期:2019-02-28 出版日期:2019-11-05 发布日期:2019-11-16
通讯作者: 王曙光 E-mail:stevenwang1979@126.com
作者简介:邓琳(1988-),女,硕士,主要从事竹类植物研究。
基金资助:
国家自然科学基金（31560196）；云南省农业联合基金项目（2017FG001-092）；竹笋转化酶的组织定位方法的建立与优化（50097505）

Study on the Flower Morphology and Structure of Fargesia fungosa

DENG Lin^1,2, HUANG Ling¹, CHU Cai-Hua¹, WANG Qian¹, ZHAN Hui¹, WANG Shu-Guang¹

1. College of life Science, Southwest Forestry University, Kunming 650224;
2. The No.3 experimental High school of Bijie, Bijie 553100

Received:2019-02-28 Online:2019-11-05 Published:2019-11-16
Supported by:
The National Natural Science Foundation of China(31560196);Yunnan Provincial Joint Special Project for Basic Research in Agriculture(2017FG001-092);Establishment and optimization of tissue localization of invertase in shoots(50097505)

摘要/Abstract

摘要： 棉花竹（Fargesia fungosa）是箭竹属重要经济竹种，有关其花器官的形态与解剖结构研究至今尚无报道。本文通过对棉花竹花器官的形态与解剖结构进行观察和分析，结果显示棉花竹花序为“混合花序”，小穗基部具潜伏芽，由单个叶片形成的“佛焰苞”包裹多枚小穗。小穗单次发生，均长3.05±0.390 cm，每枚小穗具有3~7朵小花，小花均长1.85±0.167 cm，颖片2枚。每朵小花皆具有内、外稃各1片，3枚浆片，雄蕊3枚，雌蕊1枚组成。未成熟花药具有4药室，花药壁由外到内依次为表皮、药室内壁、中层和绒毡层。花药成熟后纵裂散粉。成熟花粉粒为2或3细胞型，且具有1个萌发孔。子房1室，上位，侧膜胎座，倒生胚珠，雌蕊具2分叉羽毛状柱头。花药发育异常，导致出现大量败育现象。

关键词: 棉花竹, 花药, 子房, 败育

Abstract: Fargesia fungosa was an important economic bamboo species in the genera Fargeisa.The studies on the morphology and anatomical structure of their organs were lack.In this paper, the morphology and anatomical characteristics of F.fungosa flowers were observed and analyzed. The results showed that the flowers of F.fungosa belong tothemixed inflorescence and the base of spikelets had resting bud, besides several spikelets were wrapped by the "floral bud" was formed of singal leaf. The mean length of spikelets was 3.05±0.390 cm, containing 3-7 small flowers per spikelet. The mean length of florets was 1.85±0.167 cm, with 2 glumes,1 lemma and palea, 3 lodicules, 3 stamens, and 1 pistil. The young anther wall contained epidermis, endothecium, middle layer and tapetum from outside to inside. The matureanthers were splited longitudinally for pollen releasing.The mature pollen grainsweretwo- or three-celledand with 1 germination aperture. The ovary was unilocular, superior andand lateral membranous placenta with a anatropous ovule. The stigma of pistils has two feather-liking stigmas. The anther developed abnormally, resulting abortion phenomenonin the majority of anthers.

Key words: Fargesia fungosa, anther, ovary, anther wall

中图分类号:

S795.2

邓琳, 黄玲, 初彩华, 王茜, 詹卉, 王曙光. 棉花竹花形态与结构研究[J]. 植物研究, 2019, 39(6): 801-807.

DENG Lin, HUANG Ling, CHU Cai-Hua, WANG Qian, ZHAN Hui, WANG Shu-Guang. Study on the Flower Morphology and Structure of Fargesia fungosa[J]. Bulletin of Botanical Research, 2019, 39(6): 801-807.

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棉花竹花形态与结构研究

Study on the Flower Morphology and Structure of Fargesia fungosa

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