首页|北苍术叶片功能性状种源变异及其对科尔沁沙地环境的响应

北苍术叶片功能性状种源变异及其对科尔沁沙地环境的响应

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[目的]探究北苍术叶片功能性状对科尔沁沙地的响应与适应规律.[方法]选择4个种源地北苍术半野生种子通过同质园实验育苗移栽于奈曼旗中(蒙)药材科研基地,以3年生北苍术叶片为材料,研究北苍术叶片结构与功能特性对科尔沁沙地的响应与适应规律.[结果]扎鲁特旗种源北苍术下部叶叶裂程度较明显,叶片革质化;北苍术叶上表皮细胞厚度、下表皮细胞厚度变异系数与可塑性指数均较大,围场县种源北苍术叶片上表皮细胞厚度、扎鲁特旗种源北苍术叶片下表皮细胞厚度显著高于其他种源,栅海比、组织结构紧密度较大;阿荣旗、扎鲁特旗种源地北苍术叶片上表皮气孔数量较多,喀喇沁旗种源上表皮气孔数量极少、气孔密度较小,喀喇沁旗种源叶片下表皮气孔数量显著高于其他3个种源地;围场县、扎鲁特旗种源地北苍术叶片光合能力较强.[结论]围场县、扎鲁特旗种源地的北苍术对科尔沁沙地有较强的适应能力.
Provenance variation of the leaf anatomical structures of Atractylodes chinensis and its response to the sandy environment in Horqin
[Objective]To explore the response and adaptation of leaf functional traits of Atractylodes chinensis to Horqin sandy land.[Methods]Semi-wild A.chinensis.seeds from four seed sources were transplanted to the Chinese(Mongolian)medicinal herb research base in Naiman Banner through a homo-geneous gardening experiment.The leaves of three-year-old A.chinensis were used as materials,to exam-ine how A.chinensis's leaf structure and functional properties responded to and adapted to the sandy land of Horqin.[Results]The degree of leaf cleavage in the lower portion of the A.chinensis introduced from Zhalute Banner was evident.Additionally,the thickness of the upper and lower epidermal cells of the leav-es of the A.chinensis introduced from Weichang County and Zhalute Banner were found to have signifi-cantly higher coefficients of variation and plasticity indices than those of the other seed source sites;addi-tionally,their palisade/spongy ratios and the tightness of their tissues and structures were greater.The top layer of A.chinensis leaves from Arong Banner and Zhalute Banner sources had a greater number of stomata,whereas the upper layer of A.chinensis leaves from Harqin Banner had less stomata and a low stomatal density.A.chinensis leaves from the Zhalute Banner and Weichang County sources had a robust photosynthetic capacity,and the leaves from the Harqin Banner sources had a notably greater number of stomata in the lower epidermis than the leaves from the other three sources.[Conclusion]The results show that A.chinensis from Weichang County and Zhalute Banner are highly adaptable to the Horqin Sandy land.

Atractylodes chinensisleaf morphologyanatomical structureadaptationphotosynthetic characteristics

李凯、王刚、王凌飞、杨恒山、郭园、贾俊英

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内蒙古民族大学 农学院,内蒙古通辽 028000

内蒙古自治区高校中(蒙)药材生态种植工程研究中心(培育),内蒙古通辽 028000

奈曼旗药材研究发展中心,内蒙古通辽 028000

北苍术 叶片形态 解剖结构 适应性 光合特性

内蒙古自治区科技计划项目内蒙古自治区重点研发与科技成果转化项目内蒙古自治区高校中(蒙)药材生态种植工程研究中心(培育)开放课题项目内蒙古自治区高校中(蒙)药材生态种植工程研究中心(培育)开放课题项目

2020GG02942022YFXZ0034MDK2021021MDK2022030

2024

10.7606/j.issn.1000-4025.20230487

西北植物学报
西北农林科技大学,陕西省植物学会

西北植物学报

CSTPCD北大核心
影响因子：1.031
ISSN：1000-4025
年,卷(期)：2024.44(2)
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