丹参三倍体与二倍体叶片特征及抗旱性分析

doi:10.19640/j.cnki.jtau.2021.01.001

天津农学院学报 ›› 2021, Vol. 28 ›› Issue (1): 1-5.doi: 10.19640/j.cnki.jtau.2021.01.001

• 研究与简报 • 下一篇

丹参三倍体与二倍体叶片特征及抗旱性分析

刘婉秋, 庞俊秀, 曹艳楠, 王辉, 孙艳杰, 孙亚菲, 龙鸿^通信作者

天津农学院园艺园林学院,天津 300392

收稿日期:2020-04-02 出版日期:2021-03-31 发布日期:2021-04-02
通讯作者: 龙鸿(1964—),男,教授,博士,主要从事果树资源、果树生物技术研究。E-mail:longhong@tjau.edu.cno
作者简介:刘婉秋(1997—),女,本科在读,林学专业。E-mail:1664883756@qq.com。
基金资助:
国家级大学生创新创业训练计划项目(201810061004)

Leaf characteristics and drought resistance of triploid and diploid Salvia miltiorrhiza

Liu Wanqiu, Pang Junxiu, Cao Yannan, Wang Hui, Sun Yanjie, Sun Yafei, Long Hong^{Corresponding Author}

College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China

Received:2020-04-02 Online:2021-03-31 Published:2021-04-02

摘要/Abstract

摘要： 采用植物解剖学方法,对人工合成的丹参三倍体和丹参二倍体植株叶片解剖特征进行了观察,并比较分析了其抗旱性。结果显示,丹参三倍体植株成熟叶片表皮毛比丹参二倍体的长,叶片下表皮气孔长度、保卫细胞长度、保卫细胞厚度均大于丹参二倍体,气孔密度仅为二倍体的62.8%。此外,丹参三倍体叶片厚度、栅栏组织厚度、海绵组织厚度、上表皮厚度均明显增厚且栅海比比值更大,栅栏组织厚度可达到丹参二倍体的1.369倍。本研究表明,丹参三倍体比二倍体具有更强的光合作用能力和防止水分蒸腾的能力,抗旱性更强。本研究可为多倍体的抗旱适应性提供试验依据,为丹参三倍体在生产上的应用提供参考。

关键词: 叶片解剖结构, 抗旱性, 三倍体, 丹参

Abstract: The plant anatomy method was used to observe the anatomical characteristicsof the leaves of artificial Salvia miltiorrhiza triploid and S. miltiorrhiza diploid plants, and their drought resistance was compared and analyzed. The results showed that the trichomes of mature leaves of triploid plants of S. miltiorrhiza was longer than that of diploid plants, and the stomatal length, guard cell length, and guard cell thickness of the abaxialtrichomes of the leaves were larger than those of the diploid of S. miltiorrhiza while stomatal density was lower, 62.8% of the diploid. Moreover, the leaf thickness, the thickness of palisade tissue and spongy tissue, and the thickness of adaxial epidermis were significantly increased in triploid of S. miltiorrhiza, and the ratio of palisade tissue to spongy tissue was higher than that of diploid plants. The thickness of palisade tissue couldreach 1.369 times of that in diploid plants. These results indicate that triploid of S. miltiorrhiza has stronger photosynthesis ability and ability to prevent water transpiration than diploid, and has higher drought resistance. This study can provide an experimental basis for drought resistance adaptability of polyploids, and provide a reference for the application of S. miltiorrhizatriploid in production.

Key words: leaf anatomical structure, drought resistance, triploid, Salvia miltiorrhiza

中图分类号:

S567.53

刘婉秋, 庞俊秀, 曹艳楠, 王辉, 孙艳杰, 孙亚菲, 龙鸿. 丹参三倍体与二倍体叶片特征及抗旱性分析[J]. 天津农学院学报, 2021, 28(1): 1-5.

Liu Wanqiu, Pang Junxiu, Cao Yannan, Wang Hui, Sun Yanjie, Sun Yafei, Long Hong. Leaf characteristics and drought resistance of triploid and diploid Salvia miltiorrhiza[J]. Journal of Tianjin Agricultural University, 2021, 28(1): 1-5.

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http://xuebao.tjau.edu.cn/CN/Y2021/V28/I1/1

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丹参三倍体与二倍体叶片特征及抗旱性分析

Leaf characteristics and drought resistance of triploid and diploid Salvia miltiorrhiza

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