广西植物2016，Vol.36Issue(12)：1422-1425,4.DOI:10.11931/guihaia.gxzw201505016
三种金花茶花粉形态的扫描电镜研究
Pollen morphology of three species in sect. Chrysantha studied by scanning electron microscope
摘要
Abstract
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.关键词
金花茶/花粉形态/电镜/花粉外壁纹饰/分类Key words
sect. Chrysanthae/pollen morphology/electron microscope/pollen exine sculpture/taxonomy分类
农业科技引用本文复制引用
谭莎,查钱慧,黄永芳,洪文泓,薛克娜..三种金花茶花粉形态的扫描电镜研究[J].广西植物,2016,36(12):1422-1425,4.基金项目
广东省林业创新专项项目(2010KJCX008-02) （2010KJCX008-02）
中央财政林业科技推广示范项目(2014GDJK-07) [Supported by Special Funds for Forestry Innova-tion in Guangdong Province(2010KJCX008-02) （2014GDJK-07）
the Central Government Program for Forestry Technology Popularization Demonstration(2014GDJK-07)]. （2014GDJK-07）
