Article
Plant Sciences
Hannah M. Tetreault, Tammy Gries, Sarah Liu, John Toy, Zhanguo Xin, Wilfred Vermerris, John Ralph, Deanna L. Funnell-Harris, Scott E. Sattler
Summary: The Bmr30 gene mutation results in significantly reduced CHI activity, impaired accumulation of total flavonoids and total anthocyanins. In the bmr30 mutants, the level of the flavone lignin monomer tricin was reduced 20-fold in the stem relative to wild type, and to undetectable levels in the leaf tissue of the mutants.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Xin-Wei Zhao, Qiao Wang, Dian Wang, Wei Guo, Meng-Xuan Hu, Ying-Li Liu, Gong-Ke Zhou, Guo-Hua Chai, Shu-Tang Zhao, Meng-Zhu Lu
Summary: Lignin, a major component of plant cell walls, is crucial for plant growth and development and is regulated by multiple transcription factors. The study demonstrated that the transcription factor PagERF81 negatively regulates lignin biosynthesis, as mutant lines with decreased PagERF81 expression had increased lignin content, while overexpression of PagERF81 reduced lignin. This research provides insights into the regulation of lignin biosynthesis and offers a molecular tool for engineering wood with high lignin content, which has implications for the lignin-related chemical industry and carbon sequestration.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2023)
Article
Plant Sciences
Yoshimi Nakano, Hitoshi Endo, Lorenz Gerber, Chiaki Hori, Ayumi Ihara, Masayo Sekimoto, Tomoko Matsumoto, Jun Kikuchi, Misato Ohtani, Taku Demura
Summary: Researchers have developed a self-reinforced system to enhance the formation of secondary cell walls (SCW) in poplar xylem. By using transcription factors fused with specific gene promoters, the expression levels of SCW-related genes were increased, resulting in enhanced SCW thickening in transgenic plants. Furthermore, this method was found to affect the properties of cell walls.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Multidisciplinary Sciences
Reza Ramdan Rivai, Takuji Miyamoto, Tatsuya Awano, Rie Takada, Yuki Tobimatsu, Toshiaki Umezawa, Masaru Kobayashi
Summary: Nitrogen supply significantly affects the cell wall structure and composition of sorghum seedlings, leading to a decrease in the syringyl/guaiacyl lignin unit ratio, an increase in hemicellulose content, and alterations in tissue distribution. These cell wall changes may be associated with changes in gene expression.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Ibrahim I. Shabbaj, Hamada AbdElgawad, Abdurazag Tammar, Waleed A. Alsiary, Mahmoud M. Y. Madany
Summary: The study found that elevated atmospheric CO2 levels helped reduce the severity of Phelipanche aegyptiaca infection in pea plants by decreasing the number and biomass of tubercles, modulating ROS homeostasis, and enhancing cell wall fortification.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Xianqiang Wang, Denghui Wang, Wenjian Xu, Lingfei Kong, Xiao Ye, Qianye Zhuang, Di Fan, Keming Luo
Summary: The study indicates that ATX1 regulates secondary wall biosynthesis in Arabidopsis by increasing H3K4 trimethylation levels, mediating fiber cell wall development, and positively regulating secondary wall deposition through activating the expression of secondary wall NAC master switch genes.
NUCLEIC ACIDS RESEARCH
(2021)
Article
Forestry
Katie M. Becklin, Bethanie M. Viele, Heather D. Coleman
Summary: Symbiotic associations with mycorrhizal fungi can increase biomass and root allocation of Populus tremuloides Michx, which is important for biofuel production. Nutrient availability and stoichiometry can also affect mycorrhizal responses. Leaf nutrient content is weakly correlated with wood production in mycorrhizal plants.
Article
Biochemistry & Molecular Biology
Gaomin Wang, Mingjun Huang, Fucheng Li, Qiang Li, Fushan Chen, Songlin Wang, Zhe Ling, Zhe Ji
Summary: In this study, a combination of microcosmic and chemical analysis methods was used to investigate the effects of deep eutectic solvent (DES) pretreatment on the micromorphology of cell walls and the dissolution regular of lignin, aiming to achieve high-performance biorefinery. The results showed that DES pretreatment removed non-cellulose components and improved enzymatic saccharification efficiency. It also disrupted the beta-O-4 bond in lignin units, resulting in a decrease in molecular weight. Additionally, DES exhibited good recoverability and maintained the typical structure of regenerated lignin.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Plant Sciences
Peng-Fei Jiang, Xiao-Yang Lin, Xiu-Yan Bian, Qing-Yin Zeng, Yan-Jing Liu
Summary: PtoMYB10, an R2R3-MYB transcription factor, positively regulates SCW thickening in xylem fiber cells and redirects metabolic flux from anthocyanin biosynthesis to monolignol biosynthesis.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Plant Sciences
Shenquan Cao, Mengjie Guo, Jiyao Cheng, Hao Cheng, Xiaomeng Liu, Huanhuan Ji, Guanjun Liu, Yuxiang Cheng, Chuanping Yang
Summary: The AP17 and AP45 genes in Populus trichocarpa play important roles in xylem maturation during wood development by regulating programmed cell death of fibres. Mutations or overexpression of these genes affect lignin content and fibre cell wall thickness, and significantly increase saccharification yield in wood. Thus, they are potential candidate genes for engineering lignocellulosic wood for biofuel utilization.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Biology
Alan Crivellaro, Alma Piermattei, Jiri Dolezal, Paul Dupree, Ulf Buentgen
Summary: More than 200 years after von Humboldt's pioneering work on the treeline, our understanding of the cold distribution limit of upright plant growth is still incomplete. Contrary to popular belief, this study shows that the lignification of cell walls in 'woody' herbs can vary greatly, and small plants above the treeline may contain less lignin. The findings suggest that extremely cold temperatures can affect a plant's ability to lignify their secondary cell walls.
COMMUNICATIONS BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Yaowei Wang, Jessica Perez-Sancho, Matthieu Pierre Platre, Brenda Callebaut, Marija Smokvarska, Karoll Ferrer, Yongming Luo, Trevor M. M. Nolan, Takeo Sato, Wolfgang Busch, Philip N. N. Benfey, Miroslav Kvasnica, Johan M. M. Winne, Emmanuelle M. M. Bayer, Nemanja Vukasinovic, Eugenia Russinova
Summary: Brassinosteroids are important phytohormones for plant growth and adaptation to stress. Our study reveals that plasmodesmata play a role in the short-distance transport of brassinosteroids between neighboring cells. The intracellular brassinosteroid content can modulate plasmodesmata permeability, thereby regulating brassinosteroid biosynthesis and signaling. This work uncovers a new mode of steroid transport in eukaryotes and adds a layer of regulation to brassinosteroid homeostasis in plants.
NATURE CHEMICAL BIOLOGY
(2023)
Article
Plant Sciences
Shuai Fang, Xiaoguang Shang, Qingfei He, Weixi Li, Xiaohui Song, Baohong Zhang, Wangzhen Guo
Summary: A cell wall-localized β-1,3-glucanase, GhGLU18, enhances polysaccharide metabolism and cell wall synthesis to promote fiber cell elongation and thickening in cotton. GhGLU18 specifically expressed in fibers and plays a role in fiber cell wall development.
Article
Green & Sustainable Science & Technology
Meishan Fan, Jun Li, Zhu Liu, Caiqun Li, Hongdan Zhang, Jun Xie, Yong Chen
Summary: In this study, CrCl3 and CrCl3-catalyzed ethanol pretreatment were investigated as green and effective depolymerization processes to improve cellulose conversion from poplar pretreated residues. The influence of pretreatment temperature on delignification, lignin structure, and glucose and ethanol yields was analyzed to highlight the synergy effect of CrCl3 and ethanol solvent. The results showed that CrCl3-catalyzed ethanol pretreatment at 200 degrees C achieved high hemicellulose and lignin removal rates, leading to significant glucose and ethanol yields. The structural changes of lignin were observed and their relationship with enzymatic hydrolysis and fermentation efficiency was determined.
Article
Engineering, Environmental
Lili Qu, Zicheng Xu, Wuxing Huang, Dan Han, Bingjun Dang, Xiaohan Ma, Yizan Liu, Jiayang Xu, Wei Jia
Summary: This study reveals the molecular mechanism of Se-Mo interactions in alleviating chromium toxicity, including the enhancement of cell wall chelation ability through increased pectin and cellulose levels, as well as the reinforcement of cell wall through increased lignin content and thickness.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Multidisciplinary Sciences
Haitao Xing, Xiaokang Fu, Chen Yang, Xiaofeng Tang, Li Guo, Chaofeng Li, Changzheng Xu, Keming Luo
SCIENTIFIC REPORTS
(2018)
Article
Plant Sciences
Chaofeng Li, Xiaodong Ma, Hong Yu, Yongyao Fu, Keming Luo
FRONTIERS IN PLANT SCIENCE
(2018)
Article
Biochemistry & Molecular Biology
Yongyao Fu, Papa Win, Huijuan Zhang, Chaofeng Li, Yun Shen, Fu He, Keming Luo
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2019)
Article
Biochemistry & Molecular Biology
Li Guo, Chaofeng Li, Yuanzhong Jiang, Keming Luo, Changzheng Xu
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2020)
Article
Biotechnology & Applied Microbiology
Shifei Qin, Chunfen Fan, Xiaohong Li, Yi Li, Jian Hu, Chaofeng Li, Keming Luo
BIOTECHNOLOGY FOR BIOFUELS
(2020)
Article
Plant Sciences
Changzheng Xu, Yuanxun Tao, Xiaokang Fu, Li Guo, Haitao Xing, Chaofeng Li, Ziwei Yang, Huili Su, Xianqiang Wang, Jian Hu, Di Fan, Vincent L. Chiang, Keming Luo
Summary: The study identified a Populus-specific miR476a microRNA that regulates wound-induced adventitious rooting by orchestrating mitochondrial homeostasis. MiR476a influences adventitious rooting development through dynamic regulation of mitochondrial homeostasis and directly targets Restorer of Fertility-like genes encoding mitochondrion-localized proteins.
Article
Plant Sciences
Chaofeng Li, Jinli Pei, Xin Yan, Xin Cui, Momi Tsuruta, Ying Liu, Chunlan Lian
Summary: Through the study of Populus trichocarpa BBX transcription factors, 16 candidate genes were identified, of which 5 were mainly expressed in young leaves and roots, with BBX23 showing a significant response to high light. Overexpression of BBX23 activated the expression of structural genes and MYB transcription factors in the flavonoid pathway, leading to increased accumulation of proanthocyanidins and anthocyanins.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Plant Sciences
Jiali Li, Chaofeng Li, Momi Tsuruta, Norihisa Matsushita, Susumu Goto, Zhenguo Shen, Daisuke Tsugama, Shijie Zhang, Chunlan Lian
Summary: Ectomycorrhizal fungi, including Cenococcum geophilum, play an important role in improving the salt tolerance of host plants. This study investigated the mechanisms of salt tolerance in different isolates of C. geophilum through in vitro mycelial growth experiments and analysis of ion concentrations and pH. RNA-sequencing and qRT-PCR analysis identified differentially expressed genes involved in transmembrane transport and oxidoreductase activity pathways. The study also found that salt-sensitive isolates exhibited more active accumulation and scavenging of reactive oxygen species compared to salt-tolerant isolates.
Article
Plant Sciences
Shijie Zhang, Momi Tsuruta, Chaofeng Li, Lu-Min Vaario, Yan Xia, Norihisa Matsushita, Hiroyuki Kurokochi, Ruiyang Xu, Jiali Li, Chunlan Lian
Summary: This study investigated the effects of nitrogen application on the growth of ectomycorrhizal fungi and the formation of sporocarps, and determined the most suitable nitrogen concentration. The results have important implications for increasing the production of edible ECM fungus sporocarps in natural forests.
Article
Microbiology
Yuyu Shi, Tianyi Yan, Chao Yuan, Chaofeng Li, Christopher Rensing, Yahua Chen, Rongzhang Xie, Taoxiang Zhang, Chunlan Lian
Summary: This study investigated the physiological and molecular responses of different strains of Cenococcum geophilum to cadmium exposure. It was found that cadmium inhibited the growth of all strains but had a lesser effect on tolerant strains, which may be due to lower cadmium content and higher activity of antioxidant enzymes. Transcriptomic analysis identified differentially expressed genes related to ion transport, compound metabolism, and redox pathways. These findings provide valuable insights into the cadmium tolerance mechanism of ectomycorrhizal fungi.
Article
Biology
Chaofeng Li, Haitao Xing, Can Li, Yun Ren, Honglei Li, Xue-Qin Wan, Chunlan Lian, Jia-Xuan Mi, Shengkui Zhang
Summary: In this study, the genome of Populus wilsonii was sequenced and assembled, revealing its high cellulose content and resistance to environmental damage. Phylogenetic analysis suggested a close evolutionary relationship between P. wilsonii, P. deltoides, and P. trichocarpa. Our findings provide insights into the genetic evolution of P. wilsonii and have significant implications for further biological research and breeding.
COMMUNICATIONS BIOLOGY
(2022)
Article
Plant Sciences
Xiupeng Mei, Zikun Zhao, Yang Bai, Qiuyue Yang, Yuling Gan, Wenqin Wang, Chaofeng Li, Jiuguang Wang, Yilin Cai
Summary: Salt stress is a significant factor that restricts crop growth and productivity. This study reveals that ZmSTG1 contributes to salt tolerance in maize by maintaining photosystem activity. ZmSTG1 is an endoplasmic reticulum localized protein, and its expression levels in maize inbred lines are influenced by retrotransposon insertion in the promoter region. Overexpressing ZmSTG1 enhances plant growth vigor, while knocking out ZmSTG1 weakens plant growth under normal and salt stress conditions. Transcriptome and metabolome analyses suggest that ZmSTG1 may regulate the expression of lipid trafficking-related genes through the abscisic acid (ABA) signaling pathway, leading to increased concentrations of galactolipids and phospholipids in the photosynthetic membrane under salt stress. Knocking out ZmSTG1 impairs plant photosystem II (PSII) activity, while overexpressing ZmSTG1 improves PSII activity under salt stress conditions. Additionally, the application of the salt-tolerant locus enhances salt tolerance in hybrid maize plants.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Lingfei Kong, Qin Song, Hongbin Wei, Yanhong Wang, Minghui Lin, Kuan Sun, Yuqian Zhang, Jiarui Yang, Chaofeng Li, Keming Luo
Summary: This study provides molecular evidence for the involvement of the PtoERF15PtoMYC2b transcription cascade in regulating xylem vessel development and improving drought tolerance in poplar.
Article
Forestry
Yuanxun Tao, Chaofeng Li, Ying Liu, Changzheng Xu, Shin Okabe, Norihisa Matsushita, Chunlan Lian
Summary: In this study, high-throughput sequencing of small RNAs and degradome tags from Populus tomentosa roots inoculated with Cenococcum geophilum revealed changes in the accumulation of multiple miRNAs and miRNA-mediated mRNA cleavage during ECM formation. These findings suggest important roles of miRNAs in the regulatory network underlying symbiotic development.
Article
Chemistry, Multidisciplinary
Yun Shen, Jie Li, Shan Zhang, Xiaoxue Jiang, Jincheng Liang, Tao Li, Rong Guo, Weisheng Guan, Li Yang
Summary: The use of biogenic hydroxyapatite nanoparticles can effectively reduce the negative effects of heavy metal cadmium on seedling growth and block the translocation of cadmium in plants. In addition, biogenic hydroxyapatite nanoparticles can eliminate oxidative stress caused by cadmium toxicity and restore the synthesis of photosynthetic pigments in plants.
ENVIRONMENTAL SCIENCE-NANO
(2022)
