[1]张地莲,肖云英,李婉,等.褪黑素对镉胁迫条件下毛桃幼苗生长及镉含量的影响[J].江苏农业学报,2025,(03):573-579.[doi:doi:10.3969/j.issn.1000-4440.2025.03.016]
　ZHANG Dilian,XIAO Yunying,LI Wan,et al.Effects of melatonin on the growth and cadmium contents of peach seedlings under cadmium stress[J].,2025,(03):573-579.[doi:doi:10.3969/j.issn.1000-4440.2025.03.016]
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褪黑素对镉胁迫条件下毛桃幼苗生长及镉含量的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年03期
页码:
573-579
栏目:
园艺
出版日期:
2025-03-31

文章信息/Info

Title:
Effects of melatonin on the growth and cadmium contents of peach seedlings under cadmium stress
作者:
张地莲1; 2; 肖云英2; 李婉2; 周万木2; 张晓丽2; 林立金2; 唐懿2; 胡容平1
(1.四川省农业科学院植物保护研究所/农业部西南作物有害生物综合治理重点实验室,四川成都610066；2.四川农业大学园艺学院,四川成都611130)
Author(s):
ZHANG Dilian1; 2; XIAO Yunying2; LI Wan2; ZHOU Wanmu2; ZHANG Xiaoli2; LIN Lijin2; TANG Yi2; HU Rongping1
(1.Institute of Plant Protection, Sichuan Academy of Agricultural Sciences/Key Laboratory of Integrated Crop Pest Management in Southwest China, Ministry of Agriculture, Chengdu 610066, China;2.College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China)
关键词:
褪黑素; 镉胁迫; 镉积累; 毛桃; 生长
Keywords:
melatonin; cadmium stress; cadmium accumulation; peach; growth
分类号:
S662.1；X505；S482.8
DOI:
doi:10.3969/j.issn.1000-4440.2025.03.016
文献标志码:
A
摘要:
为明确褪黑素对镉胁迫下毛桃生长的影响,本研究拟分析1 mg/L镉胁迫下施用不同浓度褪黑素(50 μmol/L、100 μmol/L、150 μmol/L、200 μmol/L)和不施褪黑素处理对毛桃幼苗生长及镉含量的影响。结果表明,1 mg/L镉胁迫能降低毛桃幼苗生物量、株高和部分光合色素含量,提高抗氧化酶活性。镉胁迫下,150 μmol/L和200 μmol/L褪黑素处理的毛桃幼苗生物量和株高显著高于不施褪黑素处理,其中,150 μmol/L褪黑素处理的效果最好,毛桃幼苗根系生物量、地上部生物量及株高分别较不施褪黑素处理提高14.74%、23.48%和5.35%。100 μmol/L、150 μmol/L和200 μmol/L褪黑素处理的毛桃幼苗叶绿素a含量和叶绿素b含量均高于不施褪黑素处理,150 μmol/L褪黑素处理的类胡萝卜素含量高于不施褪黑素处理。不同浓度褪黑素处理的毛桃幼苗超氧化物歧化酶（SOD）、过氧化氢酶（CAT）和过氧化物酶（POD）活性均低于不施褪黑素处理。50 μmol/L褪黑素处理的毛桃幼苗根系和地上部镉含量分别较不施褪黑素处理降低23.87%和34.39%,其他浓度褪黑素处理的毛桃幼苗根系和地上部镉含量则比不施褪黑素处理有所增加或无显著差异。因此,1 mg/L镉胁迫下,高浓度(150 μmol/L和200 μmol/L)褪黑素处理能够促进毛桃生长,而50 μmol/L褪黑素处理能够降低毛桃的镉积累量。
Abstract:
In order to clarify the effect of melatonin on the growth of peach under cadmium stress, an experiment was designed to analyze the effects of different concentrations of melatonin (50 μmol/L, 100 μmol/L, 150 μmol/L, 200 μmol/L) and no melatonin treatment on the growth and cadmium content of peach seedlings under 1 mg/L cadmium stress. The results showed that 1 mg/L cadmium stress could reduce the biomass, plant height and partial photosynthetic pigment content of peach seedlings, and increase the activities of antioxidant enzymes. Under cadmium stress, the biomass and plant height of peach seedlings treated with 150 μmol/L and 200 μmol/L melatonin were significantly higher than those without melatonin treatment. Among them, the effect of 150 μmol/L melatonin treatment was the best, and the root biomass, aboveground biomass and plant height of peach seedlings were 14.74%, 23.48% and 5.35% higher than those without melatonin treatment, respectively. The chlorophyll a and chlorophyll b contents of peach seedlings treated with 100 μmol/L, 150 μmol/L and 200 μmol/L melatonin were higher than those of no melatonin treatment, and the carotenoid content of 150 μmol/L melatonin treatment was higher than that of no melatonin treatment. The activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) in peach seedlings treated with different concentrations of melatonin were lower than those without melatonin treatment. The cadmium contents in roots and shoots of peach seedlings treated with 50 μmol/L melatonin were 23.87% and 34.39% lower than those without melatonin treatment, respectively. The cadmium contents in roots and shoots of peach seedlings treated with other concentrations of melatonin were increased or weren’t significantly different from those without melatonin treatment. Therefore, under 1 mg/L cadmium stress, high concentrations (150 μmol/L and 200 μmol/L) of melatonin treatments can promote the growth of peach, while 50 μmol/L melatonin treatment can reduce the cadmium accumulation of peach.

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收稿日期：2024-08-06基金项目：国家现代农业产业技术体系四川水果创新团队项目(SCCXTD-2024-04)；四川农业大学本科生科研兴趣培养计划项目(2023505)作者简介：张地莲(2003-),女,四川成都人,本科生,主要从事果树生理生态研究工作。(E-mail)1900611014@qq.com通讯作者：胡容平,(E-mail)hurongping1215@163.com
更新日期/Last Update: 2025-04-27