Pollen morphology and its in systematic and ecological significance in Rheum (Polygonaceae) from China

	Pollen morphology and its in systematic and ecological significance in Rheum (Polygonaceae) from China
	Yang, MH ; Zhang, DM ; Zheng, JH ; Liu, JQ
刊名	nordic journal of botany
	2001
卷号	21 期号:4 页码:411-418
合作状况	其它
中文摘要	pollen morphology of 40 species of rheum, belonging to eight sections, was investigated under lm and sem. four new exine patterns were found in the species: a) microcchinate-foveolate, b) rugulate, c) verrucate-perforate, and d) verrucaterugulate ornamentation. in addition, two patterns, the rheum-type pollens with microechinate-perforate and fine-reticulate, as previously described, were also confirmed in the present study. based on above study the evolution trends of pollen morphology in the taxa involved were discussed phylogenetically as below. as microechinate-perforate exine pattern existed commonly, the pattern is, therefore, regarded as the most primitive among all the six types. the fine-reticulate type was thought as a derivative type, deriving from the basic micro echinate-foveolate-perforate pattern, and followed by the rugulate and verrucate-perforate ornamentation. the verrucate-rugulate ornamentation should be the most advanced. more than one pollen type often exist in most of the sections in rheum. the pollen morphology of rheum was strongly correlated with its geographical and ecological distribution. three medicinally important species r. officinale, r. palmation and r. tanguticum can be palynologically distinguished by their ornamentations.
英文摘要	pollen morphology of 40 species of rheum, belonging to eight sections, was investigated under lm and sem. four new exine patterns were found in the species: a) microcchinate-foveolate, b) rugulate, c) verrucate-perforate, and d) verrucaterugulate ornamentation. in addition, two patterns, the rheum-type pollens with microechinate-perforate and fine-reticulate, as previously described, were also confirmed in the present study. based on above study the evolution trends of pollen morphology in the taxa involved were discussed phylogenetically as below. as microechinate-perforate exine pattern existed commonly, the pattern is, therefore, regarded as the most primitive among all the six types. the fine-reticulate type was thought as a derivative type, deriving from the basic micro echinate-foveolate-perforate pattern, and followed by the rugulate and verrucate-perforate ornamentation. the verrucate-rugulate ornamentation should be the most advanced. more than one pollen type often exist in most of the sections in rheum. the pollen morphology of rheum was strongly correlated with its geographical and ecological distribution. three medicinally important species r. officinale, r. palmation and r. tanguticum can be palynologically distinguished by their ornamentations.
学科主题	植物学
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	plant sciences
研究领域[WOS]	plant sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000174425200010
公开日期	2009-12-10
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/1421]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.CAS, NW Plateau Inst Biol, Qinghai 810001, Peoples R China 2.Beijing Med Univ, Sch Pharmaceut Sci, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Bot, Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 4.Beijing Med Univ, Sch Pharmaceut Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Yang, MH,Zhang, DM,Zheng, JH,et al. Pollen morphology and its in systematic and ecological significance in Rheum (Polygonaceae) from China[J]. nordic journal of botany,2001,21(4):411-418.
APA	Yang, MH,Zhang, DM,Zheng, JH,&Liu, JQ.(2001).Pollen morphology and its in systematic and ecological significance in Rheum (Polygonaceae) from China.nordic journal of botany,21(4),411-418.
MLA	Yang, MH,et al."Pollen morphology and its in systematic and ecological significance in Rheum (Polygonaceae) from China".nordic journal of botany 21.4(2001):411-418.