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勾儿茶属和小勾儿茶属(鼠李科)的果实及种子形态研究及其系统学意义(英文)(PDF)

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2014年05期
页码:
589-595
栏目:
出版日期:
2014-09-10

文章信息/Info

Title:
"Drup and seed morphology of the Berchemia and Berche- miella(Rhamnaceae)and its systematic significance"
作者:
韦若勋12 张志耘3 陈艺林4 Joongku Lee5*
"1. 遵义师范学院 生命科学学院, 贵州 遵义 563002; 2. 贵州省赤水河流域植物资源保护和利用研究特色重点实验室, 贵州 遵义 563002; 3. 中国科学院植物研究所 系统与进化植物学国家重点实验室, 北京 100093; 4. 中国科学院植物研究所, 北京 100093; 5. Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea"
Author(s):
WEI Ruo-Xun12 ZHANG Zhi-Yun3 CHEN Yi-Lin4 Joongku Lee5*
"1. School of Life Sciences, Zunyi Normal University, Zunyi 563002, China; 2. Provincial Key Laboratory for Conservation and Utilization of Plant Resource in Chishuihe River Basin, Zunyi 563002, China; "
关键词:
果实 种子 比较形态解剖学 勾儿茶属 小勾儿茶属 鼠李科 系统学
Keywords:
drupe seed comparative anatomy Berchemia Berchemiella Rhamnaceae systematics
分类号:
Q949
DOI:
10.3969/j.issn.1000-3142.2014.05.003
文献标识码:
A
摘要:
在扫描电镜和解剖镜下研究鼠李科(Rhamnaceae)勾儿茶属(Berchemia)和小勾儿茶属(Berchemiella)共17种植物的果实和种子形态。结果表明:小勾儿茶属的核果1室,具1枚种子,勾儿茶属大多数种的核果2室,每室具1枚种子,但多叶勾儿茶(B. polyphylla)的核果1室较大,具1枚种子,另一室较小而没有种子,该种可能是连接勾儿茶属和小勾儿茶属的中间类群。这两个属的种子形状通常为不规则长椭圆形,种皮纹饰可划分为光滑或几乎光滑、具不明显或稀疏的条纹以及具明显的条纹或沟这三种类型。种皮纹饰的差异对这两个属属下种类的划分具有一定的意义。讨论了与前人研究结果不同之处和可能的原因。
Abstract:
Drupes and seeds of 17 species in Berchemia and Berchemiella (Rhamnaceae)were investigated under SEM and LM. The present study indicated that the drupe of Berchemiella is 1-loculed with one seed,and the drupes are 2-loculed,each locule with one seed in the most species of Berchemia. However,the drupe is 2-locular,but one locule big and with single seed,another locule small and without seed in B. polyphylla. This species may be a transitional taxon between Berchemiella and Berchemia. Seed shape of Berchemia and Berchemiella is usually irregularly long-ellipsoidal. Seed coat sculpture can be divided into three major types,i. e. smooth or almost smooth,indistinctly or sparsely striate with low striae,distinctly striate or sulcate. The differences in seed coat sculpture among species are of taxonomic significance for identifying some species in these two genera.

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备注/Memo

备注/Memo:
"收稿日期: 2013-10-22修回日期: 2013-12-05
基金项目: 贵州省教育厅自然科学基金([2013]20); 遵义师范学院博士基金(2012BSJJ05); “Procurement and development of foreign biological resources” funded by Ministry of Science ICT and Future Planning of Korean government(NRF-2006-08790)。
作者简介: 韦若勋(1975-),男,贵州平塘人,博士,副教授,主要研究方向为植物系统学和分子进化,(E-mail)weiruoxun1@126.com。 *通讯作者: Joongku Lee,博士,研究员,主要研究方向为植物系统学和分子系统学,(E-mail)joongku@kribb.re.kr。"
更新日期/Last Update: 2014-09-12