Pollen morphology of Parnassia L. (Parnassiaceae) and its systematic implications

	Pollen morphology of Parnassia L. (Parnassiaceae) and its systematic implications
	Wu, D ; Wang, H; Li, DZ; Blackmore, S
通讯作者	wanghong@mail.kib.ac.cn
	2005
发表期刊	JOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN	1672-9072
卷号	47 期号:1 页码:2-12
摘要	The pollen morphology of 28 species of Parnassia L. was investigated with light microscopy and scanning electron microscopy (SEM). The shape of pollen grains in this genus varies from subspheroidal to prolate in equatorial view and is three-lobed circular in the polar view. Pollen grains are usually radially symmetrical, isopolar, tricolporate or syntricolporate, with reticulate sculpture. The pollen characteristics among species are fairly similar to each other. Morphological information regarding the pollen grains shows that Parnassia is a natural genus. Based on exine ornamentation observed under SEM, three types of pollen grains were recognized: (i) type I, with foveolate-reticulate sculpture; (ii) type II, with a finely reticulate sculpture; and (iii) type III, with a coarsely reticulate sculpture. Most sections of this genus have one type of sculpture of pollen morphology, but Sect. Nectarotrilobos has three types of sculpture and Sect. Saxifragastrum has two types of sculpture. All three types of sculpture can be found in Southwest China, with species with the longest (Parnassia delavayi Franch.) and shortest (Parnassiafaberi Oliv.) colpi, implying that Southwest China is the center of diversification of the genus.
关键词	Parnassia l Pollen Morphology Systematic Implications
学科领域	Biochemistry & Molecular Biology ; Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000227090100001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/2988
专题	中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Lab Biodivers & Plant Biogeog, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Royal Bot Gardens, Edinburgh EH3 5LR, Midlothian, Scotland
推荐引用方式 GB/T 7714	Wu, D,Wang, H,Li, DZ,et al. Pollen morphology of Parnassia L. (Parnassiaceae) and its systematic implications[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2005,47(1):2-12.
APA	Wu, D,Wang, H,Li, DZ,&Blackmore, S.(2005).Pollen morphology of Parnassia L. (Parnassiaceae) and its systematic implications.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,47(1),2-12.
MLA	Wu, D,et al."Pollen morphology of Parnassia L. (Parnassiaceae) and its systematic implications".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 47.1(2005):2-12.

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