Cell wall modification induced by an arbuscular mycorrhizal fungus enhanced cadmium fixation in rice root

Gao，Meng Ying1; Chen，Xun Wen1,2; Huang，Wei Xiong1; Wu，Li1; Yu，Zheng Sheng1; Xiang，Lei1; Mo，Ce Hui1; Li，Yan Wen1; Cai，Quan Ying1; Wong，Ming Hung1,3; Li，Hui1

2021-08-15

10.1016/j.jhazmat.2021.125894

JOURNAL OF HAZARDOUS MATERIALS   影响因子和分区

0304-3894

1873-3336

The chemistry of root cell wall of rice could be changed by inoculation of arbuscular mycorrhizal fungi (AMF). Hydroponic experiments were conducted to investigate the roles of such changes on cadmium (Cd) uptake and distribution in rice. Results showed that inoculation of AM fungus Rhizophagus intraradices (RI) significantly enhanced (p < 0.05) shoot biomass, plant height and root length of rice, and decreased Cd concentration in shoot and root under Cd stress. Moreover, Cd in root was mainly found in pectin and hemicellulose 1 (HC1) components of root cell wall. Inoculation of RI increased the levels of pectin, HC1 and lignin content, accompanied by the increments of L-phenylalanine ammonia-lyase (PAL) and pectin methylesterase (PME) activities. Results of Fourier transform infrared spectroscopy further showed that more hydroxyl and carboxyl groups in root cell wall were observed in mycorrhizal treatment, compared with control. This study demonstrates that cell wall components could be the locations for Cd fixation, which reduced Cd transportation from root to shoot. Inoculation of AMF may remodel root cell wall biosynthesis and affect the characteristics of Cd fixation. The entering and fixing mechanisms should be further studied.

Cereal FTIR Heavy metal Hemicellulose Pectin methylesterase

SCI ; EI

英语

其他

WOS:000664800700003

20211810300113

Amino acids ; Ammonia ; Biochemistry ; Cadmium ; Cells ; Cytology ; Fourier transform infrared spectroscopy ; Fungi

Biological Materials and Tissue Engineering:461.2 ; Biology:461.9 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Chemistry:801 ; Biochemistry:801.2 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Cellulose, Lignin and Derivatives:811.3 ; Organic Polymers:815.1.1

ENGINEERING

2-s2.0-85104986046

Scopus

1.Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials,Department of Ecology,College of Life Science and Technology,Jinan University,Guangzhou,510632,China
2.State Environmental Protection Key Laboratory of Integrated Surface Water Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.The Education University of Hong Kong,Tai Po,Hong Kong

Gao，Meng Ying,Chen，Xun Wen,Huang，Wei Xiong,et al. Cell wall modification induced by an arbuscular mycorrhizal fungus enhanced cadmium fixation in rice root[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,416.

Gao，Meng Ying.,Chen，Xun Wen.,Huang，Wei Xiong.,Wu，Li.,Yu，Zheng Sheng.,...&Li，Hui.(2021).Cell wall modification induced by an arbuscular mycorrhizal fungus enhanced cadmium fixation in rice root.JOURNAL OF HAZARDOUS MATERIALS,416.

Gao，Meng Ying,et al."Cell wall modification induced by an arbuscular mycorrhizal fungus enhanced cadmium fixation in rice root".JOURNAL OF HAZARDOUS MATERIALS 416(2021).