三种金花茶花粉形态的扫描电镜研究

金花茶分类系统尚未完善,金花茶又极具观赏价值,潜在价值极高,该研究应用扫描电镜观察三种金花茶花粉形态,即平果金花茶、直脉金花茶、金花茶,并运用数理统计和图片分析的方法对其花粉形态进行了探讨。结果表明：三种金花茶花粉均属于大花粉粒,花粉平均极轴在50μm以上,花粉极面观为钝凹三角形,萌发孔为三孔沟,即N3P4C5类型。平果金花茶与直脉金花茶花粉外壁纹饰为拟网状纹饰,平果金花茶网眼较密,网脊稍不平,直脉金花茶网脊稍隆起;金花茶为蠕虫状纹饰,短条状突起。花粉形态对其分类有重要意义,通过花粉外壁纹饰的类型可知金花茶与其二者亲缘关系较远,花粉形态各指标具有种间变异性,种内具有保守性,而平果金花茶和直脉金...

Full description

Saved in:
Bibliographic Details
Published in广西植物 Vol. 36; no. 12; pp. 1422 - 1425
Main Author 谭莎 查钱慧 黄永芳 洪文泓 薛克娜
Format Journal Article
LanguageChinese
Published 华南农业大学 林学与风景园林学院,广东省森林植物种质创新与利用重点实验室,广州510642%佛山市林业科学研究所,广东 佛山,528222 2016
Subjects
分类
电镜
花粉外壁纹饰
花粉形态
金花茶
sect. Chrysanthae
pollen morphology
金花茶
electron microscope
电镜
花粉外壁纹饰
taxonomy
花粉形态
分类
pollen exine sculpture
Online AccessGet full text
ISSN1000-3142
DOI10.11931/guihaia.gxzw201505016

Cover

More Information
Summary:金花茶分类系统尚未完善,金花茶又极具观赏价值,潜在价值极高,该研究应用扫描电镜观察三种金花茶花粉形态,即平果金花茶、直脉金花茶、金花茶,并运用数理统计和图片分析的方法对其花粉形态进行了探讨。结果表明：三种金花茶花粉均属于大花粉粒,花粉平均极轴在50μm以上,花粉极面观为钝凹三角形,萌发孔为三孔沟,即N3P4C5类型。平果金花茶与直脉金花茶花粉外壁纹饰为拟网状纹饰,平果金花茶网眼较密,网脊稍不平,直脉金花茶网脊稍隆起;金花茶为蠕虫状纹饰,短条状突起。花粉形态对其分类有重要意义,通过花粉外壁纹饰的类型可知金花茶与其二者亲缘关系较远,花粉形态各指标具有种间变异性,种内具有保守性,而平果金花茶和直脉金花茶花粉外壁纹饰相同但具体分类还需进一步研究。该研究结果为金花茶种质资源分类和利用提供了参考,在一定程度上促进了金花茶资源的开发和利用。
Bibliography:TAN Sha1,ZHA Qian-Hui1,HLANG Yong-Fang1,HONG Wen-Hong1,XLE Ke-Na2（1. College of Forestry and Landscape Architecture,Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm,South China Agricultural University,Guangzhou 510642,China;2. Foshan Institute of Forestry Sciences,Foshan 528222, Guangdong,China ）
45-1134/Q
sect. Chrysanthae; pollen morphology; electron microscope; pollen exine sculpture; taxonomy
Pollen grains from 3 species of sect. Chrysantha were examined using the scanning electron microscope,including Camellia pingguoensis,C. multipetala var. patens,C. chrysantha. The characteristics of pollen morphology among the species were distinguished using data statistics and photographic analysis. The pollens were large pollen grains,mean polar axis pollen size in the three species was over 50 μm,blunt concave triangle in polar view. According to morphological photography,the aperture were three hole groove,namely N3P4C5 type. Two basic sculpes were defined： tuberculate-b
ISSN:1000-3142
DOI:10.11931/guihaia.gxzw201505016