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景天属Sedum植物隶属于景天科Crassulaceae,为1年生或多年生草本,是景天科分布最为广泛的,数量最多的属。全属约470种,主要分布在北半球,在西半球以墨西哥种类最为丰富,中国约150种,分布遍及全国,其中西南地区种类繁多[1]。景天属植物具有观赏价值高、适应性强、耐瘠薄、低维护等特性,是创建节约型及生态型园林中不可或缺的优良植物材料[2-3]。不仅于此,景天属植物在药用、生态修复[4-5]等方面同样具有相当高的应用价值和潜力。中国虽是重要的种质资源分布区,目前大多植物资源还处于野生状态,仅有少量景天属植物成功被人工引种驯化栽培及应用,开发力度远远不够。近年来,随着对景天属植物重视程度的提高,国内外对景天属的研究逐渐增多,国内研究多集中在资源分布与分类、园林应用、药用价值、植物修复及抗逆性研究[5-7]等方面,而在分子生物学方面的研究较为少见,国外对景天属的研究主要侧重在屋顶绿化应用[8-10]。中国具有丰富的景天属植物资源,合理开展种质资源的调查、保存和利用,对选育优质、抗逆、抗病新品种具有重要意义。为了更好地了解其特性及合理利用,现对近年来国内外景天属植物的研究进展进行概述,探讨研究中存在的问题,旨在为后续发展提供一定的理论依据。
An overview of Sedum spp. Research
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摘要: 景天属Sedum植物具有观赏价值高、低维护、适应性强等优点,是创建节约型园林、保持生态系统稳定不可缺少的宿根花卉,同时也兼顾食用及药用价值。为了深入研究及开发利用国内景天属植物资源,从资源分布与分类、资源应用、栽培繁殖、抗逆性等4个方面概述了近年来国内外景天属植物的研究进展,阐明了景天属植物研究过程中存在的问题,并对未来发展方向提出了一些建议,为进一步推动中国景天属植物种质资源的深入研究与合理开发利用提供参考。Abstract: Sedum plants have characteristics of effective aesthetic, low maintenance and wide adaption, which are indispensable perennials for creating conservation oriented gardens and maintaining ecosystem stability. Meanwhile, they also have high edible and medicinal values. In order to further study and exploit the resources of Sedum in China, this paper summarized current research progress regarding resource distribution and classification, resource application, cultivation and propagation, and resistance to abiotic stress. Moreover, the existing problems and future development were also prospected in order to stimulate more research and rational exploitation and utilization in the future.
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Key words:
- botany /
- Sedum /
- resource distribution /
- resource classification /
- resource application /
- cultivation and propagation /
- stress resistance /
- review
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