Effects of arbuscular mycorrhizal fungi on redox homeostasis of rice under Cd stress

Li, Hui1; Chen, Xun Wen2,3; Wu, Li1; Luo, Na1; Huang, Wei Xiong1; Mo, Ce Hui1; Li, Yan Wen1; Xiang, Lei1; Zhao, Hai Ming1; Cai, Quan Ying1; Wong, Ming Hung1,4

2020-08-17

10.1007/s11104-020-04678-y

PLANT AND SOIL   影响因子和分区

0032-079X

1573-5036

Aims Arbuscular mycorrhizal fungi (AMF) can enhance cadmium (Cd) tolerance and decrease Cd uptake of rice plant. However, in these processes, the essential role of reactive oxygen species (ROS)-antioxidants interactions is so far not investigated. Methods We inoculated AMF,Funneliformis mosseae(Fm) andRhizophagus intraradices(Ri), to upland rice subjected to 0, 2 or 10 mg Cd kg(-1)in soil. ROS, antioxidants, chlorophyll, mesophyll cell ultrastructure, Cd concentration and Cd transporters were measured. Results Results showed that the levels of ROS (i.e., superoxide, hydrogen peroxide and lipid peroxidation) were mitigated in +AMF + Cd treatments, especially in +Ri + Cd, compared with -AMF + Cd. For antioxidants, lower levels of catalase, peroxidase and superoxide dismutase, whereas higher levels of glutathione and glutathione peroxidase were observed in +AMF + Cd compared with -AMF + Cd. Chlorophyll content and mesophyll cell ultrastructure were improved by AMF. Cd concentrations in plants were significantly decreased in +AMF + Cd (10 mg Cd kg(-1)) treatments. Conclusions AMF not only decreased Cd accumulation in rice but also regulated the ROS scavenging activities. The variations of ROS and antioxidants were restrained to smaller ranges by AMF. AMF may assist in Cd restriction and thus helping the host to release glutathione for ROS scavenging.

Crop Heavy metal Symbiosis Reactive oxygen species Antioxidant Cd transporter

SCI

英语

其他

National Natural Science Foundation of China[41877350] ; Guangzhou Municipal Science and Technology Project[201904010084] ; National Key R&D Program of China[2018YFD0800701] ; NSFC-Guangdong Joint Fund[U1501233] ; Research Team Project of the Natural Science Foundation of Guangdong Province[2016A030312009] ; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control[2017B030301012]

Agriculture ; Plant Sciences

Agronomy ; Plant Sciences ; Soil Science

WOS:000560907800001

SPRINGER

AGRICULTURAL SCIENCES

Web of Science

1.Jinan Univ, Coll Life Sci & Technol, Guangdong Prov Res Ctr Environm Pollut Control &, Dept Ecol, Guangzhou 510632, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518055, Peoples R China
4.Educ Univ Hong Kong, Tai Po, Hong Kong, Peoples R China

Li, Hui,Chen, Xun Wen,Wu, Li,et al. Effects of arbuscular mycorrhizal fungi on redox homeostasis of rice under Cd stress[J]. PLANT AND SOIL,2020,455(1-2):121-138.

Li, Hui.,Chen, Xun Wen.,Wu, Li.,Luo, Na.,Huang, Wei Xiong.,...&Wong, Ming Hung.(2020).Effects of arbuscular mycorrhizal fungi on redox homeostasis of rice under Cd stress.PLANT AND SOIL,455(1-2),121-138.

Li, Hui,et al."Effects of arbuscular mycorrhizal fungi on redox homeostasis of rice under Cd stress".PLANT AND SOIL 455.1-2(2020):121-138.