Article
Forestry
Siqin Liu, Tao Long, Zihao Chen, Jikai Liu, Wenli Cui, Haiqin Leng, Yuhang Xing, Lucas Gutierrez Rodriguez, Victor Resco de Dios, Yongfeng Gao, Yinan Yao
Summary: In this study, ten PtrNRAMP genes were identified and analyzed in poplar trees, revealing their involvement in growth and development, as well as their role in mediating the uptake and transport of heavy metals. Most PtrNRAMP proteins showed absorption activity for Cd2+, Fe2+, and Mn2+ in yeast cells. These findings provide new insights into the biological functions of PtrNRAMP genes and their potential for phytoremediation of heavy metal-polluted soils.
TREE GENETICS & GENOMES
(2023)
Article
Environmental Sciences
Jun Ge, Shengke Tian, Haiyue Yu, Jianqi Zhao, Junwen Chen, Lijia Pan, Ruohan Xie, Lingli Lu
Summary: Sedum alfredii, a Cd/Zn hyperaccumulator native to China, showed high tolerance and accumulation ability to Mn while also significantly affecting the hyperaccumulation of Cd. High Mn exposure reduced the plant uptake of Cd, but at the same time increased its accumulation in the roots and shoots of the plant.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Jun-Xiu Chen, Yue Cao, Xiangjuan Yan, Yanshan Chen, Lena Q. Ma
Summary: The ACR3 genes in arsenic hyperaccumulator Pteris vittata were studied in yeast and tobacco, showing their roles in regulating arsenic translocation and sequestration. PvACR3;2 facilitated AsIII translocation to the shoots and efflux from the roots in tobacco, while PvACR3;3 sequestered AsIII in tobacco root vacuoles.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Environmental Sciences
Jingyu Tao, Lingli Lu
Summary: Cadmium is a highly toxic heavy metal for plants, animals, and humans. Understanding the latest advances in Cd transporters is important for understanding the mechanisms of Cd accumulation in plants.
Article
Engineering, Environmental
Chang Ju, Li Wang, Yongqiang You, Fang Ma
Summary: Salt interference significantly affects the behavior of heavy metals in the environment. This study compared and analyzed the response process, migration, and transformation of cadmium (Cd) in the hyperaccumulator Solanum nigrum (S. nigrum) under different NaCl levels to reveal the interference mechanisms of salt in plant remediation of Cd-contaminated soil. The findings suggest that salt can activate Cd in plants, enhance Cd bioavailability, and inhibit Cd transport to the aboveground. These results provide valuable insights for the phytoremediation of Cd contamination under saline soil conditions.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Yuchen Kang, Jiaxin Liu, Li Yang, Na Li, Yuhao Wang, Tianqi Ao, Wenqing Chen
Summary: This study aimed to improve the efficiency of phytoremediation by enhancing Cd tolerance in Amaranthus hypochondriacus through exogenous rutin application. The addition of rutin reduced cell membrane damage, increased Cd immobilization in the cell wall, and advanced the conversion of glutathione to phytochelatins, leading to higher Cd accumulation in the leaves. Overall, the efficiency of phytoremediation and phytoextraction of Amaranthus hypochondriacus were significantly increased with rutin application, providing a constructive approach for soil remediation in Cd-contaminated fields.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biotechnology & Applied Microbiology
Guangyu Shi, Jiayuan Hu, Fanqi Ding, Shiqian Li, Weilin Shi, Yan Chen
Summary: Pot experiments were conducted to investigate the effect of Pseudomonas aeruginosa on the phytoremediation efficiency of ryegrass in Cu- and Cd-contaminated soil. The application of P. aeruginosa promoted the growth of ryegrass and increased the uptake and translocation of Cu and Cd. It also improved the bioavailability of Cu and Cd and enhanced their removal efficiencies from the soil. The subcellular distribution analysis showed that Cu and Cd were mainly distributed in the cell wall and cell-soluble fraction of ryegrass. The results suggest that the application of P. aeruginosa culture can enhance the phytoremediation of Cu-Cd co-contaminated soil by ryegrass.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Horticulture
Mengsi Xia, Wenbo Zhang, Yanting Chang, Yanjun Ma, Yayun Deng, Keke Fan, Xue Zhang, Zehui Jiang, Tao Hu
Summary: Studying the critical genes and regulatory factors in peony somatic embryo development is of great significance for accelerating the process of molecular breeding in peony and achieving directed breeding and improvements in efficiency through genetic engineering breeding technology.
Article
Engineering, Environmental
Chenjing Liu, Hai Lin, Bing Li, Yingbo Dong, Tingting Yin, Xi Chen
Summary: Endophyte inoculation significantly improved plant growth and heavy metal (Cd) accumulation, as well as enhanced the nutrient content and bioavailability in soil aggregates. The study showed that endophyte inoculation had significant effects on soil aggregates and promoted the bioavailability of Cd.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Yazhu Mi, Kun Tong, Guangsen Zhu, Xu Zhang, Xiaohong Liu, Youbin Si
Summary: Surface spraying of anthocyanin can promote rice growth and reduce Cd accumulation in rice grains. This is mainly attributed to increased antioxidant activities and subcellular sequestration of Cd in organelles and soluble fractions in rice leaves.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2021)
Article
Environmental Sciences
Shen Zheng, Chao Xu, Guanghui Lv, Hong Shuai, Quan Zhang, Qihong Zhu, Hanhua Zhu, Daoyou Huang
Summary: Cadmium (Cd) pollution in paddy soils can be mitigated by foliar zinc (Zn) application. This study investigated the effects of foliar Zn application on Cd transport and immobilization in rice tissues and the physiological state of rice plants. The results showed that foliar Zn reduced Cd concentration in rice grains and increased Cd concentration in husks, rachises, first internodes, and roots. Zn application also reduced xylem Cd content and inhibited photosynthesis. Overall, foliar Zn can reduce Cd concentration in rice grains by promoting Cd immobilization in other parts of the plant.
ENVIRONMENTAL POLLUTION
(2023)
Article
Genetics & Heredity
Xiaogai Zhao, Bingbing Li, Xiaoqiao Zhai, Haifang Liu, Minjie Deng, Guoqiang Fan
Summary: This study identified 138 R2R3-MYB genes in Paulownia, which were classified into 27 subfamilies based on gene structures and phylogenetic relationships. The upregulation of PfR2R3-MYB15 in response to phytoplasma infections was observed, and its overexpression induced branching symptoms in another plant species. PfR2R3-MYB15 was found to interact with PfTAB2 and may participate in biosynthesis of photosystem elements. These findings lay a foundation for future investigations on the R2R3-MYB TF family in Paulownia and other plants.
Article
Agronomy
Xiong Li, Di Chen, Boqun Li, Yongping Yang
Summary: S. tiliifolia was able to tolerate all Cd concentrations, with higher Cd concentrations in roots than shoots and low translocation factors. Rhizosphere pH decreased with increasing Cd concentrations, and soil pH and organic matter content may jointly affect soil available Cd. Soil enzyme activities and bacterial diversity were affected to varying degrees under Cd stress, with induced bacterial ABC transporters contributing to Cd detoxification and accumulation in both soil microbial communities and S. tiliifolia plants.
Article
Plant Sciences
Yaping Ma, Yun Xie, Rong Ha, Bing Cao, Lihua Song
Summary: Exposure to elevated CO2 levels led to increased photosynthesis rate in goji berry plants, resulting in decreased sugar content in leaves and fruits, accompanied by increased activities of sucrose metabolism-related enzymes.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Wei Gao, Xiao Jin Wang, Chong Chong Yu, Wen Jing Feng, Dang Ling Hua, Guo Zhang Kang, Peng Zhao
Summary: Different wheat cultivars exhibit individual defense responses to heavy metal stress, with Cd-tolerant cultivars showing higher Cd concentration in roots and shoots and lower Cd distribution in organelles, leading to lower H2O2 concentration. On the other hand, sensitive cultivars have lower expression of certain genes and cell death responses, resulting in weaker Cd uptake capacity.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)