| 多羽实蕨配子体发育的新观察 |
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| 引用本文： | 苑惠惠,;刘保东.多羽实蕨配子体发育的新观察[J].热带生物学报,2014(1):43-47. |
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| 作者姓名： | 苑惠惠 ;刘保东 |
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| 作者单位： | [1]哈尔滨师范大学生命科学与技术学院,黑龙江哈尔滨150025; [2]黑龙江省普通高等学校植物生物学重点实验室,黑龙江哈尔滨150025 |
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| 基金项目： | 国家自然科学基金（31170294） |
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| 摘 要： | 采用Olympus-BX53光学显微镜,观察了人工培养条件下多羽实蕨(Bolbitis angustipinna(Hayata)H.Ito)配子体各发育阶段的结构特征,其中,重点观察了边缘细胞的形态特征及假根的分化。结果发现,配子体的发育过程包括孢子萌发、原丝体发育、片状体形成、原叶体形成等4个阶段;配子体的毛状体、边缘细胞、假根具有稳定的系统学特征,即毛状体为单细胞棒状,边缘细胞具有齿槽和突起2种形态,假根除具有弯曲、分叉和顶端膨大的特征外,还具有不规则缢缩和锯齿形的特征。
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| 关 键 词： | 多羽实蕨 配子体 发育 |
New Observation of Gametophyte Development of Bolbitis angustipinna |
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| Institution: | YUAN Huihui , LIU Baodong(1. College of Life Science and Technology, Harbin Normal University, Harbin 150025, China; 2. Key Laboratory of Plant Biology, College of Heilongjiang Province, Harbin 150025, China) |
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| Abstract: | The structural features of gametophytes of Bolbitis angustipinna （Hayata） H. Ito at each stage of development were observed under the condition of artificial culture by using Olympus-BX53 optical microscope. The morphological characteristics of the border cell and the rhizoid differentiation were observed. It was found that the development of B. angustipinna gametophyte included spore germination, protonema development, formation of the prothallial plate, and prothallus formation. And the gametophyte of trichome, border cell and rhizoid had stable systematic characteristics： the trichome was unicellular and clavate; the border cell had two special forms, alveoli and protuberance; rhizoids were not only bended, bifurcated and top swollen but also con stricted irregularly and serrated. |
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| Keywords: | Bolbitis angustipinna gametophyte development |
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