干旱下植物根系分泌物及其介导的根际激发效应研究进展

doi:10.17521/cjpe.2023.0238

植物生态学报 ›› 2024, Vol. 48 ›› Issue (7): 817-827.DOI: 10.17521/cjpe.2023.0238 cstr: 32100.14.cjpe.2023.0238

所属专题：美丽中国建设

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干旱下植物根系分泌物及其介导的根际激发效应研究进展

龙吉兰¹, 蒋铮², 刘定琴¹, 缪宇轩¹, 周灵燕¹, 冯颖¹, 裴佳宁¹, 刘瑞强³, 周旭辉³, 伏玉玲¹^,^*()

¹华东师范大学生态与环境科学学院, 浙江天童森林生态系统国家野外科学观测研究站, 上海 200241
²上海市农业科学院生态环境保护研究所, 上海 201403
³东北林业大学林学院, 哈尔滨 150040

收稿日期:2023-08-18 接受日期:2024-01-16 出版日期:2024-07-20 发布日期:2024-04-24
通讯作者: * 伏玉玲(ylfu@re.ecnu.edu.cn)
基金资助:
国家自然科学基金(32271675);国家自然科学基金(31930072);国家自然科学基金(42261144688);上海市自然科学基金(21ZR1419200)

Effects of drought on plant root exudates and associated rhizosphere priming effect: review and prospect

LONG Ji-Lan¹, JIANG Zheng², LIU Ding-Qin¹, MIAO Yu-Xuan¹, ZHOU Ling-Yan¹, FENG Ying¹, PEI Jia-Ning¹, LIU Rui-Qiang³, ZHOU Xu-Hui³, FU Yu-Ling¹^,^*()

¹Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
²Eco-environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
³School of Forestry, Northeast Forestry University, Harbin 150040, China

Received:2023-08-18 Accepted:2024-01-16 Online:2024-07-20 Published:2024-04-24
Contact: * FU Yu-Ling(ylfu@re.ecnu.edu.cn)
Supported by:
National Natural Science Foundation of China(32271675);National Natural Science Foundation of China(31930072);National Natural Science Foundation of China(42261144688);Natural Science Foundation of Shanghai(21ZR1419200)

摘要/Abstract

摘要：

根系分泌物是植物与土壤进行物质能量交换和信息传递的重要媒介, 同时也是植物响应外界环境变化的主要形式, 在土壤碳库动态中发挥着重要作用。伴随着全球气候变化而频繁发生的极端干旱事件对植物地上地下生长过程都产生了深刻的影响, 然而, 由于根-土界面交互作用的复杂性, 以及根系分泌物收集手段与装置的不完善, 人们对干旱条件下根系分泌物及其介导的根际激发效应的响应及机制的认知尚存在较大的局限性。基于此, 该文结合国内外生态学领域的研究前沿动态, 论述了干旱下植物根系分泌物数量及组分的动态变化, 重点阐述了根系分泌物介导的根际激发效应及其机制, 在此基础上展望了未来根系分泌物研究中的重点关注方向, 以期为未来全球气候变化条件下土壤碳汇的评估提供科学依据。

关键词: 干旱胁迫, 根系分泌物, 根际激发效应, 土壤微生物, 土壤养分

Abstract:

Root exudates play an important role in soil carbon balance, acting as an important medium for material and energy exchange and information transfer between plant roots and soil, and also the crucial forms for plant response to environmental changes. Frequent extreme drought events accompanied with global climate change have imposed a profound impact on both above- and below-ground plant growth processes. However, significant limitation exists in understanding the responses of root exudates and their mediated rhizosphere priming effect to drought due to the complexity of root-soil interface interactions and the limitation in devices and methods for collecting root exudates. This paper reviews the effects of drought on the quantity and quality of plant root exudates, with emphasis on the rhizosphere priming effect mediated by root exudates under drought stress. The future research focuses on root exudates was also discussed. This study will provide suggestion for soil carbon sink assessment under the future climate change.

Key words: drought stress, root exudates, rhizosphere priming effect, soil microorganisms, soil nutrient

龙吉兰, 蒋铮, 刘定琴, 缪宇轩, 周灵燕, 冯颖, 裴佳宁, 刘瑞强, 周旭辉, 伏玉玲. 干旱下植物根系分泌物及其介导的根际激发效应研究进展. 植物生态学报, 2024, 48(7): 817-827. DOI: 10.17521/cjpe.2023.0238

LONG Ji-Lan, JIANG Zheng, LIU Ding-Qin, MIAO Yu-Xuan, ZHOU Ling-Yan, FENG Ying, PEI Jia-Ning, LIU Rui-Qiang, ZHOU Xu-Hui, FU Yu-Ling. Effects of drought on plant root exudates and associated rhizosphere priming effect: review and prospect. Chinese Journal of Plant Ecology, 2024, 48(7): 817-827. DOI: 10.17521/cjpe.2023.0238

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2023.0238

https://www.plant-ecology.com/CN/Y2024/V48/I7/817

图/表 2

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研究地点 Study site	研究类型 Study type	研究对象 Study object	干旱/对照(恢复) Drought/control (recovery)	干旱时间 Drought duration	根系分泌速率变化范围 Variation range of root exudation rate	参考文献 Reference
中国浙江 Zhejiang, China	野外实验 Field experiment	木荷 Schima superba	减少70%的降雨/正常降雨 70% lower rainfall/normal rainfall	10 a	-0.271↓	Jiang et al., 2023
		米槠 Castanopsis carlesii			-0.217↓
		苦槠 Castanopsis sclerophylla			-0.142↓
		柯 Lithocarpus glaber			-0.034=
德国 Germany	野外实验 Field experiment	欧洲水青冈 Fagus sylvatica	减少70%的降雨/正常降雨 70% lower rainfall/normal rainfall	5 a	0.071=	Brunn et al., 2022
德国 Germany	野外实验 Field experiment	欧洲云杉 Picea abies	减少70%的降雨/正常降雨 70% lower rainfall/normal rainfall	5 a	0.308↑	Brunn et al., 2022
波兰 Poland	盆栽实验 Pot experiment	无梗花栎 Quercus petraea	25% SWC/55% SWC	31 d	-0.665↓	Staszel et al., 2022
美国 America	盆栽实验 Pot experiment	格兰马草 Bouteloua gracilis	50% WHC, 25% WHC/100% WHC	30 d	0.506, 50%WHC= 3.007, 25%WHC↑	Ulrich et al., 2022
西班牙 Spain	盆栽实验 Pot experiment	欧洲赤松 Pinus sylvestris	10% SWC/20% SWC	14-17周 14-17 weeks	0.375=	Preece et al., 2021
西班牙 Spain	盆栽实验 Pot experiment	冬青栎 Quercus ilex	10% SWC/20% SWC	14-17周 14-17 weeks	0.091↑	Preece et al., 2021
英国 Britain	盆栽实验 Pot experiment	绒毛草 Holcus lanatus	20% WHC/60% WHC	14 d	0.783↑	de Vries et al., 2019
英国 Britain	盆栽实验 Pot experiment	酸模 Rumex acetosa	20% WHC/60% WHC	14 d	0.141=	de Vries et al., 2019
阿根廷 Argentina	培养皿 Culture dish	落花生 Arachis hypogaea (SEMIA6144)	Hoagland solution (-0.28 MPa)/ Hoagland solution (-0.07 MPa)	7 d	0.270↑	Cesari et al., 2019
阿根廷 Argentina	培养皿 Culture dish	落花生 Arachis hypogaea (Az39)		7 d	0.250↑	Cesari et al., 2019
西班牙 Spain	盆栽实验 Pot experiment	冬青栎 Quercus ilex	0.3%-22.6% SWC/20%-24.7% SWC	21 d	0.213↑	Preece et al., 2018
德国 Germany	盆栽实验 Pot experiment	大麦 Hordeum vulgare (cv. Golden Promise)	减少33%的降雨/正常降雨 33% lower rainfall/normal rainfall	91 d	-0.251=	Calvo et al., 2017
德国 Germany	盆栽实验 Pot experiment	大麦 Hordeum vulgare (cv. Bambina)	减少33%的降雨/正常降雨 33% lower rainfall/normal rainfall	91 d	-0.164=	Calvo et al., 2017
澳大利亚 Australia	盆栽实验 Pot experiment	向日葵 Helianthus annuus	40% WHC/65% WHC	14 d	2.207↑	Canarini et al., 2016
澳大利亚 Australia	盆栽实验 Pot experiment	大豆 Glycine max	40% WHC/65% WHC	14 d	0.495=	Canarini et al., 2016
加拿大 Canada	盆栽实验 Pot experiment	颤杨 Populus tremuloides	减少90%的水量/最佳水量 90% less water/optimum water	42 d	0.930=	Karst et al., 2017
美国 America	盆栽实验 Pot experiment	冰草 Agropyron cristatum	减少75%的水量/最佳水量 75% less water/optimum water	35 d	0.680↑	Henry et al., 2007

研究地点 Study site	研究类型 Study type	研究对象 Study object	干旱/对照(恢复) Drought/control (recovery)	干旱时间 Drought duration	根系分泌速率变化范围 Variation range of root exudation rate	参考文献 Reference
中国浙江 Zhejiang, China	野外实验 Field experiment	木荷 Schima superba	减少70%的降雨/正常降雨 70% lower rainfall/normal rainfall	10 a	-0.271↓	Jiang et al., 2023
		米槠 Castanopsis carlesii			-0.217↓
		苦槠 Castanopsis sclerophylla			-0.142↓
		柯 Lithocarpus glaber			-0.034=
德国 Germany	野外实验 Field experiment	欧洲水青冈 Fagus sylvatica	减少70%的降雨/正常降雨 70% lower rainfall/normal rainfall	5 a	0.071=	Brunn et al., 2022
德国 Germany	野外实验 Field experiment	欧洲云杉 Picea abies	减少70%的降雨/正常降雨 70% lower rainfall/normal rainfall	5 a	0.308↑	Brunn et al., 2022
波兰 Poland	盆栽实验 Pot experiment	无梗花栎 Quercus petraea	25% SWC/55% SWC	31 d	-0.665↓	Staszel et al., 2022
美国 America	盆栽实验 Pot experiment	格兰马草 Bouteloua gracilis	50% WHC, 25% WHC/100% WHC	30 d	0.506, 50%WHC= 3.007, 25%WHC↑	Ulrich et al., 2022
西班牙 Spain	盆栽实验 Pot experiment	欧洲赤松 Pinus sylvestris	10% SWC/20% SWC	14-17周 14-17 weeks	0.375=	Preece et al., 2021
西班牙 Spain	盆栽实验 Pot experiment	冬青栎 Quercus ilex	10% SWC/20% SWC	14-17周 14-17 weeks	0.091↑	Preece et al., 2021
英国 Britain	盆栽实验 Pot experiment	绒毛草 Holcus lanatus	20% WHC/60% WHC	14 d	0.783↑	de Vries et al., 2019
英国 Britain	盆栽实验 Pot experiment	酸模 Rumex acetosa	20% WHC/60% WHC	14 d	0.141=	de Vries et al., 2019
阿根廷 Argentina	培养皿 Culture dish	落花生 Arachis hypogaea (SEMIA6144)	Hoagland solution (-0.28 MPa)/ Hoagland solution (-0.07 MPa)	7 d	0.270↑	Cesari et al., 2019
阿根廷 Argentina	培养皿 Culture dish	落花生 Arachis hypogaea (Az39)		7 d	0.250↑	Cesari et al., 2019
西班牙 Spain	盆栽实验 Pot experiment	冬青栎 Quercus ilex	0.3%-22.6% SWC/20%-24.7% SWC	21 d	0.213↑	Preece et al., 2018
德国 Germany	盆栽实验 Pot experiment	大麦 Hordeum vulgare (cv. Golden Promise)	减少33%的降雨/正常降雨 33% lower rainfall/normal rainfall	91 d	-0.251=	Calvo et al., 2017
德国 Germany	盆栽实验 Pot experiment	大麦 Hordeum vulgare (cv. Bambina)	减少33%的降雨/正常降雨 33% lower rainfall/normal rainfall	91 d	-0.164=	Calvo et al., 2017
澳大利亚 Australia	盆栽实验 Pot experiment	向日葵 Helianthus annuus	40% WHC/65% WHC	14 d	2.207↑	Canarini et al., 2016
澳大利亚 Australia	盆栽实验 Pot experiment	大豆 Glycine max	40% WHC/65% WHC	14 d	0.495=	Canarini et al., 2016
加拿大 Canada	盆栽实验 Pot experiment	颤杨 Populus tremuloides	减少90%的水量/最佳水量 90% less water/optimum water	42 d	0.930=	Karst et al., 2017
美国 America	盆栽实验 Pot experiment	冰草 Agropyron cristatum	减少75%的水量/最佳水量 75% less water/optimum water	35 d	0.680↑	Henry et al., 2007

干旱下植物根系分泌物及其介导的根际激发效应研究进展

Effects of drought on plant root exudates and associated rhizosphere priming effect: review and prospect

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