文献类型： 外文期刊

作者： Zhao, Xinlin ² ; Wang, Yuanchang ² ; Wang, Chenyuan ² ; Zhou, Wei ² ; Ouyang, Da ⁵ ; Gao, Shuaishuai ⁶ ; Tan, Xiaofei ⁷ ; Huang, Rong ² ; Guo, Yuan ¹ ;

作者机构： 1.Changsha Univ, Sch Mat & Environm Engn, Changsha 41000, Hunan, Peoples R China

2.Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Hunan, Peoples R China

3.Chinese Acad Agr Sci, Ctr Southern Econ Crops, Changsha 410205, Hunan, Peoples R China

4.Hunan Prov Key Lab TCM Agr Biogenom, Changsha 410205, Hunan, Peoples R China

5.Zhejiang Agr & Forestry Univ, Sch Environm & Resource Sci, Key Lab Soil Contaminat Bioremediat Zhejiang Prov, Hangzhou 311300, Peoples R China

6.Hunan Acad Agr Sci, Hunan Inst Microbiol, Hunan Prov Engn & Technol Res Ctr Agr Microbiol Ap, Changsha 410009, Peoples R China

7.Hunan Univ, Minist Educ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China

8.Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Peoples R China

9.Hunan Univ, Shenzhen Res Inst, Shenzhen 518055, Peoples R China

关键词： Antioxidant; Bioconcentration; Biomass; Cannabis sativa; Heavy metal; Phytomanagement

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.0； 五年影响因子：9.5 ）

ISSN： 0960-8524

年卷期： 2025 年 418 卷

页码：

收录情况： SCI

摘要： Hemp has been widely used for cadmium (Cd) remediation. However, its remediation efficiency needs to be improved. Chitooligosaccharides can enhance plant resistance and growth; however, their effects on hemp for Cd-remediation remain unclear. Herein, a greenhouse pot experiment was conducted to investigate the effects of three doses (0, 22.5, and 45 mu g m- 2) of chitooligosaccharides (COS), chitin-oligosaccharides (NACOS), and hetero-chitooligosaccharides (HTCOS) on the growth and Cd-remediation efficiency of hemp. Results showed that chitooligosaccharides promoted the antioxidant system and aerial biomass (maximum 84 %) depending on doses and types. COS (22.5 mu g m- 2 under 60 mg cadmium kg- 1 soil), NACOS, and HTCOS significantly elevated the Cd concentration in hemp. Consequently, NACOS and HTCOS (45 mu g m- 2) significantly increased the average Cd removal up to 61 % and 81 %, respectively, compared with the control. Therefore, spraying chitooligo- saccharides can enhance growth and phytoremediation efficiency of hemp by elevating aerial biomass and cadmium concentration of hemp.