{"title":"Pollen Morphology of Pinus mugo Turra × Pinus sylvestris L. Hybrids and Parental Species in an Experimental Culture","authors":"Joanna Bykowska, M. Klimko","doi":"10.1515/ABCSB-2015-0009","DOIUrl":null,"url":null,"abstract":"Pollen grains of Pinus mugo, P. sylvestris and P. ×rhaetica (= P. mugo × P. sylvestris) were examined by light and scanning electron microscopy. The pollen grains were bisaccate and monosulcate. The corpus-saccus attachment was distinct. The pollen corpus exine sculpture was verrucate-rugulate and deeply sculptured. The surface of the tectum was covered with small grana and it was perforate. The saccus sexine ornamentation was reticulate and irregularly perforate. The tectum surface characters in the proximal and distal view of the corpus and saccus were less variable and they did not provide good criteria to identify the species under study. However, some differences were observed in the size of elevation on the corpus between pollen grains of the same species and between the parental species. This study of the pollen grain morphology of the corpus and saccus provided some important new data.","PeriodicalId":45465,"journal":{"name":"Acta Biologica Cracoviensia Series Botanica","volume":"57 1","pages":"149-160"},"PeriodicalIF":0.5000,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/ABCSB-2015-0009","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Biologica Cracoviensia Series Botanica","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1515/ABCSB-2015-0009","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 7
Abstract
Pollen grains of Pinus mugo, P. sylvestris and P. ×rhaetica (= P. mugo × P. sylvestris) were examined by light and scanning electron microscopy. The pollen grains were bisaccate and monosulcate. The corpus-saccus attachment was distinct. The pollen corpus exine sculpture was verrucate-rugulate and deeply sculptured. The surface of the tectum was covered with small grana and it was perforate. The saccus sexine ornamentation was reticulate and irregularly perforate. The tectum surface characters in the proximal and distal view of the corpus and saccus were less variable and they did not provide good criteria to identify the species under study. However, some differences were observed in the size of elevation on the corpus between pollen grains of the same species and between the parental species. This study of the pollen grain morphology of the corpus and saccus provided some important new data.
用光镜和扫描电镜对马丘松、西尔维斯特松和×rhaetica (= P. mugo × P. sylvestris)的花粉粒进行了研究。花粉粒呈双盐型和单盐型。体囊附着明显。花粉体外壁雕刻呈疣状,雕刻深刻。顶盖表面覆盖小颗粒,呈穿孔状。囊性纹饰呈网状,不规则穿孔。胼胝体和囊体近端和远端视图的顶盖表面特征变化较小,不能提供很好的标准来识别所研究的物种。但是,同一种花粉粒与亲本花粉粒在花粉体上的高度大小存在一定差异。本研究提供了一些重要的新资料。
期刊介绍:
ACTA BIOLOGICA CRACOVIENSIA Series Botanica is an English-language journal founded in 1958, devoted to plant anatomy and morphology, cytology, genetics, embryology, tissue culture, physiology, biochemistry, biosystematics, molecular phylogenetics and phylogeography, as well as phytochemistry. It is published twice a year.