文献类型：期刊文献

英文题名：Physiological and molecular mechanisms of heavy metal accumulation in nonmycorrhizal versus mycorrhizal plants

作者：Shi, Wenguang[1] Zhang, Yuhong[1] Chen, Shaoliang[2] Polle, Andrea[2,3] Rennenberg, Heinz[4] Luo, Zhi-Bin[1]

第一作者：石文广

通信作者：Luo, ZB[1]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Key Lab Silviculture State Forestry Adm, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Beijing Forestry Univ, Beijing Adv Innovat Ctr Tree Breeding Mol Design, Coll Biol Sci & Technol, Beijing 100083, Peoples R China;[3]Univ Goettingen, Forest Bot & Tree Physiol, D-37077 Gottingen, Germany;[4]Univ Freiburg, Inst Forest Sci, D-79110 Freiburg, Germany

年份：2019

卷号：42

期号：4

起止页码：1087-1103

外文期刊名：PLANT CELL AND ENVIRONMENT

收录：;Scopus(收录号：2-s2.0-85056699934);WOS:【SCI-EXPANDED(收录号:WOS:000462360300001)】；

基金：Fundamental Research Funds for the Central Non-profit Research Institutions of CAF, Grant/Award Numbers: CAFYBB2018ZY001-2 and CAFYBB2018SY005; National Natural Science Foundation of China, Grant/Award Numbers: 31770643, 31670609, 31570587 and 31470618; Research Project of the Chinese Ministry of Education, Grant/Award Number: 113013A; Program of Introducing Talents of Discipline to Universities, Grant/Award Number: B13007

语种：英文

外文关键词：ATP-binding cassette transporter; heavy metal ATPase; phytoremediation; transcriptional regulation; transporter

摘要：Uptake, translocation, detoxification, and sequestration of heavy metals (HMs) are key processes in plants to deal with excess amounts of HM. Under natural conditions, plant roots often establish ecto- and/or arbuscular-mycorrhizae with their fungal partners, thereby altering HM accumulation in host plants. This review considers the progress in understanding the physiological and molecular mechanisms involved in HM accumulation in nonmycorrhizal versus mycorrhizal plants. In nonmycorrhizal plants, HM ions in the cells can be detoxified with the aid of several chelators. Furthermore, HMs can be sequestered in cell walls, vacuoles, and the Golgi apparatus of plants. The uptake and translocation of HMs are mediated by members of ZIPs, NRAMPs, and HMAs, and HM detoxification and sequestration are mainly modulated by members of ABCs and MTPs in nonmycorrhizal plants. Mycorrhizal-induced changes in HM accumulation in plants are mainly due to HM sequestration by fungal partners and improvements in the nutritional and antioxidative status of host plants. Furthermore, mycorrhizal fungi can trigger the differential expression of genes involved in HM accumulation in both partners. Understanding the molecular mechanisms that underlie HM accumulation in mycorrhizal plants is crucial for the utilization of fungi and their host plants to remediate HM-contaminated soils.