| 也门铁花叶性状及机理的细胞学研究 |
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| 引用本文： | 刘和平,何业华.也门铁花叶性状及机理的细胞学研究[J].北方园艺,2012(16):35-38. |
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| 作者姓名： | 刘和平 何业华 |
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| 作者单位： | 阳江职业技术学院,广东阳江,529566;华南农业大学园艺学院,广东广州,510642 |
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| 摘 要： | 以也门铁3个不同品种为试材,从细胞学角度研究了也门铁花叶特性和机理。结果表明:也门铁茎尖分生组织符合原体-原套学说,由2层排列整齐的原套细胞和数层排列不规则的原体细胞组成。金心也门铁黄色细胞叶绿体退化程度相对较轻,形状呈圆形,结构相对完整,基粒扭曲,叶绿素的总含量较低,所以表现为淡绿色。金边也门铁黄色细胞没有完整的叶绿体结构,叶绿体破坏十分严重,基粒降解,片层膜结构降解,故表现出黄色。
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| 关 键 词： | 也门铁 花叶 嵌合体 叶绿体 |
Cytology Study on Leaf-variegation Character and Mechanism of Dracaena fragrans |
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| LIU He-ping
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HE Ye-hua.Cytology Study on Leaf-variegation Character and Mechanism of Dracaena fragrans[J].Northern Horticulture,2012(16):35-38. |
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| Authors: | LIU He-ping HE Ye-hua |
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| Institution: | 1.Yangjiang Vocational and Technical College,Yangjiang,Guangdong 529566;2.College of Horticulture,South China Agriculture University,Guangzhou,Guangdong 510642) |
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| Abstract: | Taking Dracaena fragran 3 different varieties as test materials,from the angle of cytology the characteristics and mechanism of Dracaena fragran leaves were studied.The results showed that the stem apex of D.fragrans was consistent with tunica-corpus theory.It was composed of two layers of neatly arranged tunica cell and several layers of irregular corpus cell.Degradation of chloroplast in yellow cell of D.fragrans cv.massangeana was relatively light,round in shape,relatively integrity structure,distorted grana,total chlorophyl content was fairly low.Therefore,the appearance was light green.There was almost no complete chloroplast structure in the yellow cell of D.fragrans cv.lindenii.The chloroplast was destroyed very seriously,grana degraded,and the structure of lamellar membrane degraded,so it appeared to be yellow. |
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| Keywords: | Dracaena fragrans leaf-variegation chimera chloroplast |
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