Response of Root Morphology and Physiological Characteristics of Atractylodes chinensis to Water Regulation

doi:10.11924/j.issn.1000-6850.casb2023-0241

Abstract

Abstract:

To investigate the effect of moisture on root growth and physiological characteristics of seedlings of Atractylodes chinensis, moisture regulation was carried out on 2-year-old A. chinensis. The results showed that root length, root surface area, root diameter and root volume of A. chinensis increased significantly when the relative soil moisture content was 60%, and the specific root length and specific surface area increased when the soil moisture content was lower than 60%. Root vigor increased and then decreased with the decrease of soil water content. Malondialdehyde content decreased and then increased with decreasing soil water content. The osmoregulatory substances proline, soluble sugar and soluble protein content showed higher accumulation at 50% and 60% of soil water content in each sampling period, and the peroxidase (POD) and superoxide dismutase (SOD) activities showed a trend of increasing and then decreasing in each treatment. Its soil water content of 50%-60% at the time of water management during the seedling stage of A. chinensis is conducive to promoting the root growth of A. chinensis and enhancing its water adaptation ability.

Key words: Atractylodes chinensis, root characteristics, physiological characteristics, water regulation, root vigor

WANG Zicheng, ZHANG Ruifu, WANG Lingfei, JIA Junying, GUO Yuan, LI Zhijun, SUN Dezhi. Response of Root Morphology and Physiological Characteristics of Atractylodes chinensis to Water Regulation[J]. Chinese Agricultural Science Bulletin, 2023, 39(25): 48-53.

Figures/Tables 13

References 24

[1]	国家药典委员会. 中华人民共和国药典(一部)[M]. 北京: 中国医药科技出版社, 2020:168-169.
[2]	新型冠状病毒肺炎诊疗方案(试行第九版)[J]. 中国病毒病杂志, 2022, 12(3):161-169.
[3]	李志军, 贾俊英, 陈晶, 等. 北苍术有性生殖特性研究[J]. 时珍国医国药, 2021, 32(2):447-449.
[4]	领航, 涂济源, 詹鑫, 等. 基于中药道地性优势对苍术现行质量标准的思考[J]. 中国实验方剂学杂志, 2022(3):212-219.
[5]	FAROOQ M, WAHID A, KOBAYASHI N, et al. Plant drought stress: Effects, mechanisms and management[J]. Agronomy for sustainable development, 2009, 29(1):185-212. doi: 10.1051/agro:2008021 URL
[6]	GUO Y Y, YU H Y, YANG M M, et al. Effect of drought stress on lipid peroxidation, osmotic adjustment and antioxidant enzyme activity of leaves and roots of Lycium ruthenicum Murr. seedling[J]. Russian journal of plant physiology, 2018, 65(2):244-250. doi: 10.1134/S1021443718020127
[7]	ALZAHRANI Y, KUSVURAN A, ALHARBY H F, et al. The defensive role of silicon in wheat against stress conditions induced by drought, salinity or cadmium[J]. Ecotoxicology and environmental safety, 2018, 154:187-196. doi: S0147-6513(18)30144-1 pmid: 29475124
[8]	周秀丽, 翁丽丽, 姜大成, 等. 干旱胁迫下北苍术的光合特性及抗逆生理响应[J]. 中药材, 2020, 43(1):15-19.
[9]	张翠梅, 师尚礼, 吴芳. 干旱胁迫对不同抗旱性苜蓿品种根系生长及生理特性影响[J]. 中国农业科学, 2018, 51(5):868-882. doi: 10.3864/j.issn.0578-1752.2018.05.006
[10]	黄海霞, 杨琦琦, 崔鹏, 等. 裸果木幼苗根系形态和生理特征对水分胁迫的响应[J]. 草业学报, 2021, 30(1):197-207. doi: 10.11686/cyxb2020057
[11]	邹琦. 植物生理学实验指导[M]. 北京: 中国农业出版社, 2003:60-63,127-130,159-162,173-174.
[12]	高俊凤. 植物生理学实验指导[M]. 北京: 高等教育出版社, 2006:217-219.
[13]	种培芳, 李航逸, 李毅. 荒漠植物红砂根系对干旱胁迫的生理响应[J]. 草业学报, 2015, 24(1):72-80. doi: 10.11686/cyxb20150110
[14]	孙天雨. 黄土高原草地植物根系形态及生物量沿环境梯度的变化规律[D]. 杨凌: 西北农林科技大学, 2021.
[15]	张旭东, 王智威, 韩清芳, 等. 玉米早期根系构型及其生理特性对土壤水分的响应[J]. 生态学报, 2016, 36(10):2969-2977.
[16]	吕爽, 张现慧, 张楠, 等. 胡杨幼苗根系生长与构型对土壤水分的响应[J]. 西北植物学报, 2015, 35(5):1005-1012.
[17]	耿东梅, 单立山, 李毅. 土壤水分胁迫对红砂幼苗细根形态和功能特征的影响[J]. 水土保持通报, 2014, 34(6):36-42.
[18]	胥生荣. 干旱区土壤环境调控对枸杞水分吸收利用的影响[D]. 兰州: 甘肃农业大学, 2020.
[19]	PIRNAJMEDIN Fatemeh, MAJIDI Mohammad Mahdi, GHEYSARI Mahdi. Root and physiological characteristics associated with drought tolerance in Iranian tall fescue[J]. Euphytica, 2015, 202(1).
[20]	王曦, 胡红玲, 胡庭兴, 等. 干旱胁迫对桢楠幼树渗透调节与活性氧代谢的影响及施氮的缓解效应[J]. 植物生态学报, 2018, 42(2):240-251. doi: 10.17521/cjpe.2017.0225
[21]	洪文泓. 山茶属4种植物对模拟干旱的生理响应[D]. 广州: 华南农业大学, 2017.
[22]	张琪. 水分调控对蒙古黄芪药效成分及生物合成基因表达的影响[D]. 长春: 吉林农业大学, 2021.
[23]	廖沛然. 三七对不同水分条件的生理响应及其机理研究[D]. 昆明: 昆明理工大学, 2016.
[24]	WANG J, CHEN G, ZHANG C. The effects of water stress on soluble protein content, the activity of SOD, POD and CAT of two ecotypes of reeds (Phragmites communis)[J]. Acta botanica boreali-occidentalia sinica, 2002, 22(3):561-565.