Arid
DOI10.1016/j.envexpbot.2013.10.018
The role of ectomycorrhizas in heavy metal stress tolerance of host plants
Luo, Zhi-Bin1,2,3; Wu, Chenhan1,2; Zhang, Chao3; Li, Hong4; Lipka, Ulrike5; Polle, Andrea5
通讯作者Luo, Zhi-Bin
来源期刊ENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN0098-8472
EISSN1873-7307
出版年2014
卷号108页码:47-62
英文摘要

Ectomycorrhizas (EMS) are mutualistic associations between certain soil fungi and higher plants. EMs can modulate the cellular, physiological and molecular processes of host plants, resulting in altered responses of the colonized plants to heavy metals. Progress in elucidating the role of EMs in modulating heavy metal tolerance of host trees is reviewed. In the last decade, a number of ectomycorrhizal fungal isolates and host plants have been characterized for their tolerance to heavy metals. Additionally, the cellular processes have been investigated with regard to heavy metal uptake, transport, distribution, toxicity and detoxification by ectomycorrhizal fungi and/or host plants. At the cellular level, mechanisms of heavy metal detoxification include (i) binding of heavy metals to cell wall and extracellular exudates, (ii) decreased uptake and/or pumping metal ions out of cytosol, (iii) chelation of metal ions in cytosol, (iv) compartmentation of metals in vacuoles or other subcellular structures, and (v) repair of damaged biomolecules. The efficiency of these protective measures is often increased by EMs, resulting in improved physiological status and rescued growth. While physiological and cellular responses to heavy metals have been well studied, experimental data on the underlying molecular mechanisms, especially those induced by the interaction of ectomycorrhizal fungi and hosts, are scattered. Progress in genome sequencing of EM partners has revealed the importance of metal transporters in mediating tolerance. A better understanding of the molecular mechanisms is essential for effective application of selected fungal isolates and hosts to improve the efficiency of bioremediation on heavy metal polluted sites. (C) 2013 Elsevier B.V. All rights reserved.


英文关键词Abiotic and biotic stress Mycorrhizal fungi Nutrient Reactive oxygen species Subcellular localization Transcriptional regulation
类型Article
语种英语
国家Peoples R China ; Germany
收录类别SCI-E
WOS记录号WOS:000342248000006
WOS关键词PINUS-SYLVESTRIS SEEDLINGS ; FUNGUS PAXILLUS-INVOLUTUS ; POPULUS X CANESCENS ; HYPERACCUMULATOR ARABIDOPSIS-HALLERI ; MENZIESII VAR. MENZIESII ; INDUCED OXIDATIVE STRESS ; NORWAY SPRUCE SEEDLINGS ; INDUSTRIAL DESERT SOIL ; SYLVATICA L. SEEDLINGS ; SOLANUM-NIGRUM L.
WOS类目Plant Sciences ; Environmental Sciences
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology
来源机构西北农林科技大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/181809
作者单位1.Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China;
2.Northwest A&F Univ, State Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Shaanxi, Peoples R China;
3.Northwest A&F Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China;
4.Northwest A&F Univ, Coll Plant Protect, Yangling 712100, Shaanxi, Peoples R China;
5.Univ Gottingen, Busgen Inst, Dept Forest Bot & Tree Physiol, D-37077 Gottingen, Germany
推荐引用方式
GB/T 7714
Luo, Zhi-Bin,Wu, Chenhan,Zhang, Chao,et al. The role of ectomycorrhizas in heavy metal stress tolerance of host plants[J]. 西北农林科技大学,2014,108:47-62.
APA Luo, Zhi-Bin,Wu, Chenhan,Zhang, Chao,Li, Hong,Lipka, Ulrike,&Polle, Andrea.(2014).The role of ectomycorrhizas in heavy metal stress tolerance of host plants.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,108,47-62.
MLA Luo, Zhi-Bin,et al."The role of ectomycorrhizas in heavy metal stress tolerance of host plants".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 108(2014):47-62.
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