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...
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| Published in | 广西植物 Vol. 36; no. 12; pp. 1422 - 1425 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| 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
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-3142 |
| DOI | 10.11931/guihaia.gxzw201505016 |
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| Abstract | 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。 |
|---|---|
| AbstractList | 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。 Q945; 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. |
| Abstract_FL | Pollen grains from 3 species of sect. Chrysantha were examined using the scanning electron microscope, in-cluding 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 50μm, blunt concave triangle in polar view. According to morphological photography, the aperture were three hole groove, namely N3 P4 C5 type. Two basic sculpes were de-fined:tuberculate-baculate, viz, ornate. C. pingguoensis, C. multipetala var. patens were the latter, C. chrysantha was the other. C. pingguoensis relatively dense mesh, mesh ridge slightly rough, C. multipetala var. patens net ridge slightly uplift, C. chrysantha short strip projections. Pollen morphology has important significance for its classification, through the pollen exine sculpture type, C. chrysantha with C. pingguoensis, C. multipetala var. patens were more distant rela-tives. Pollen morphology had variability among species, had conservation within species, but the classification of C. pingguoensis and C. multipetala var. patens still need further study. By comparing the pollen size, shape, the exine pore characteristics and morphological indexes etc, the results showed that there was an obvious similarities and differ-ences of three species of sect. Chrysantha pollen morphology but sect. chrysantha set classification is complex, not only from the palynology into consideration, has a long way for sect. Chrysantha set classification. Sect. Chrysantha found up to now, enjoyed a good reputation at home and abroad, has been enjoying by botanists, horticulturalist, but its classifi-cation system is not yet clear. In fact, classification system has been being improved, sect. Chrysanthae has ornamental value and highly potential value. The results provide sect. chrysanthae germplasm resources classification and the use of value, promote sect. Chrysanthae development of resource utilization. |
| Author | 谭莎 查钱慧 黄永芳 洪文泓 薛克娜 |
| AuthorAffiliation | 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 |
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| Author_FL | ZHA Qian-Hui TAN Sha HUANG Yong-Fang XUE Ke-Na HONG Wen-Hong |
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| DocumentTitleAlternate | Pollen morphology of three species in sect. Chrysantha studied by scanning electron microscope |
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| Keywords | 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 |
| Language | Chinese |
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| Notes | 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 |
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| Publisher | 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 |
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| Snippet | 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... Q945; 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... |
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| SubjectTerms | 分类 电镜 花粉外壁纹饰 花粉形态 金花茶 |
| Title | 三种金花茶花粉形态的扫描电镜研究 |
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