关键词：
Carbon density;Carbon accumulation rate;Forest age;Spatial variation;Cultural in fluence
摘要：
Understanding the spatial variation, temporal changes, and their underlying driving forces of carbon sequestration in various forests is of great importance for understanding the carbon cycle and carbon management options. How carbon density and sequestration in various Cunninghamia lanceolata forests, extensively cultivated for timber production in subtropical China, vary with biodiversity, forest structure, environment, and cultural factors remain poorly explored, presenting a critical knowledge gap for realizing carbon sequestration supply potential through management. Based on a large-scale database of 449 permanent forest inventory plots, we quantified the spatial -temporal heterogeneity of aboveground carbon densities and carbon accumulation rates in Cunninghamia lanceolate forests in Hunan Province, China, and attributed the contributions of stand structure, environmental, and management factors to the heterogeneity using quantile age -sequence analysis, partial least squares path modeling (PLS-PM), and hot -spot analysis. The results showed lower values of carbon density and sequestration on average, in comparison with other forests in the same climate zone (i.e., subtropics), with pronounced spatial and temporal variability. Specifically, quantile regression analysis using carbon accumulation rates along an age sequence showed large differences in carbon sequestration rates among underperformed and outperformed forests (0.50 and 1.80 Mg center dot ha ⠁1 center dot yr ⠁1). PLS-PM demonstrated that maximum DBH and stand density were the main crucial drivers of aboveground carbon density from young to mature forests. Furthermore, species diversity and geotopographic factors were the significant factors causing the large discrepancy in aboveground carbon density change between low- and high -carbon -bearing forests. Hotspot analysis revealed the importance of culture attributes in shaping the geospatial patterns of carbon sequestration. Our work highlighted that retaining largesized DBH trees and increasing shade -tolerant tree species were important to enhance carbon sequestration in C. lanceolate forests.
通讯机构：
[Xiang, WH ] C;Cent South Univ Forestry & Technol, Fac Life Sci & Technol, 498 Southern Shaoshan Rd, Changsha 410004, Hunan, Peoples R China.;Huitong Natl Stn Sci Observat & Res Chinese Fir Pl, Huaihua 438107, Hunan, Peoples R China.
关键词：
Fine roots;Functional trait diversity;Microbial diversity;Plant–microbial interactions;Soil properties;Subtropical forest
摘要：
AimsAlthough plant-microbial interactions are essential to sustain terrestrial ecosystem functions, root-microbial interactions remain poorly understood. Therefore, understanding how functional trait diversity of fine roots mediates soil microbial diversity and composition provides insightful information to maintain forest ecosystem functions.MethodsA total of 87 plots with 1-12 tree species richness gradient in three subtropical secondary forests were selected. Functional trait diversity (functional dispersion, FDis, and community-weighted mean, CWM) of fine roots was quantified. Soil microbial diversity and community composition were analyzed by high-throughput Illumina sequencing.ResultsBacterial and fungal richness was primarily predicted by CWM of root diameter (CWM_diam) in the humus horizon, but by FDis of specific root length (FDis_SRL) in the mineral horizon. Microbial community composition in two soil horizons increased with FDis_SRL, including the abundance of copiotrophic bacteria (r-strategists, e.g., Proteobacteria, Actinobacteria), Chloroflexi, saprotrophs and pathogens. FDis_SRL was also indirectly mediated microbial richness and composition via decreasing carbon:nitrogen ratio and increasing pH, total nitrogen, total and available phosphorus contents.ConclusionsOverall, functional trait diversity of fine roots plays a pivotal role in mediating soil microbial richness and community composition in subtropical secondary forests. These results deepen our understanding of the important role of plant-microbial interactions in terrestrial biogeochemical processes.
通讯机构：
[Zhou, B; Peng, D ] C;[Zhou, B ] N;Cent South Univ Forestry & Technol, Fac Life Sci & Biotechnol, Changsha 410004, Hunan, Peoples R China.;Huitong Natl Field Stn Sci Observat & Res Chinese, Huaihua 438107, Hunan, Peoples R China.;Natl Engn Lab Appl Technol Forestry & Ecol Souther, Changsha 410004, Hunan, Peoples R China.
关键词：
Environmental cues;genetic engineering;root development;TARGET OF MONOPTEROS;transcription factor;vascular development
摘要：
Plants have an incredible ability to sustain root and vascular growth after initiation of the embryonic root and the specification of vascular tissue in early embryos. Microarray assays have revealed that a group of transcription factors, TARGET OF MONOPTEROS (TMO), are important for embryonic root initiation in Arabidopsis. Despite the discovery of their auxin responsiveness early on, their function and mode of action remained unknown for many years. The advent of genome editing has accelerated the study of TMO transcription factors, revealing novel functions for biological processes such as vascular development, root system architecture, and response to environmental cues. This review covers recent achievements in understanding the developmental function and the genetic mode of action of TMO transcription factors in Arabidopsis and other plant species. We highlight the transcriptional and post-transcriptional regulation of TMO transcription factors in relation to their function, mainly in Arabidopsis. Finally, we provide suggestions for further research and potential applications in plant genetic engineering. Target of monopteros (TMO) transcription factors are involved in vascular development, root formation, and response to environmental cues in plants. Transcriptional and post-transcriptional regulation of TMO transcription factors is critical to plant development.
期刊：
Case Studies in Construction Materials,2024年20:e02768 ISSN：2214-5095
通讯作者：
Zhan, XF
作者机构：
[Zhan, Xue-fang; Yan, Heng-li; Zhan, XF; Chen, Jing-yuan; Wang, Xian] Cent South Univ Forestry & Technol, Shaoshan South Rd 568, Changsha 410004, Peoples R China.
通讯机构：
[Zhan, XF ] C;Cent South Univ Forestry & Technol, Shaoshan South Rd 568, Changsha 410004, Peoples R China.
关键词：
Crumb rubber;R-ECC mixtures;R-ECC road -bridge link slab;Mix proportion;Sensitivity finite element analysis;Crack distribution
摘要：
This paper presents a different way using crumb rubber and fine sand totally replaced for silica sand within ECC mixtures to make rubberized engineered cementitious composites (R-ECC) to solve the issues of high construction cost of the road-bridge link slab for fully jointless bridges (FJBs). The crumb rubber with a size of 80 CR was replaced with fine sand from a volume rate of 5–20% in multiples of 5% to prepare the R-ECC material. Five different R-ECC mixtures (CR0-CR20) with different mix designs were prepared and tested, then an optimum mix proportion for the R-ECC mixtures was found. An R-ECC road-bridge link slab made of the optimum mix proportion which replace with fine sand in a volume rate of 15% was constructed, and its absorptive deformation capacity, tensile performance, and crack distribution under the most unfavourable load (temperature drop load) were studied. It is found that the R-ECC slab has good absorptive deformation capacity, crack control capacity and better internal force distribution. Therefore, R-ECC mixtures can be utilized for road-bridge link slab construction. Then, a sensitivity finite element comparative analysis was carried out considering the content of crumb rubbers, the friction coefficient and the slab length. It is found that the design length has a greater influence on the tensile performance of the R-ECC slab than other factors. Finally, a preliminary design theory of road-bridge link slab for FJBs has been established.
期刊：
Journal of Cleaner Production,2024年434:140106 ISSN：0959-6526
通讯作者：
Qin, CR;Li, ZH
作者机构：
[Qin, Chengrong; Huang, Haibo] Guangxi Univ, Sch Light Ind & Food Engn, Nanning 530004, Peoples R China.;[Li, Zhihan; Li, ZH; Qing, Yan] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.;[Hu, Can] Hunan Univ Technol, Hunan Key Lab Biomass Fiber Funct Mat, Zhuzhou 412007, Peoples R China.
通讯机构：
[Li, ZH ] C;[Qin, CR ] G;Guangxi Univ, Sch Light Ind & Food Engn, Nanning 530004, Peoples R China.;Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.
关键词：
Oily sludge;Amphipathic hemicellulose derivatives;Biosurfactants;Oil recovery;Kinetic model
摘要：
This study presents an improved sustainable approach to produce high-performance hemicellulose-based biosurfactants for environmentally friendly oily sludge remediation and oil components recovery. The amphipathic hemicellulose derivatives were prepared by hydrothermal extraction from renewable bamboo resources followed by rapid homogeneous esterification with alkenyl succinic anhydrides (C12–C18). The chemical structures of the prepared amphipathic hemicellulose derivatives were analyzed by FT-IR and NMR. The amphipathic hemicellulose derivatives with different hydrophobic chains were used to improve the separation and recovery of oil components from oily sludge in the thermal washing process. The hemicellulose modified with octadecenylsuccinic anhydride (HC-ODSA) exhibited the best oil recovery rate of 79.9%. The results of the interfacial activity, foaming, emulsification, and solubilization tests confirmed that the carbon chain length in the introduced hydrophobic groups exerted a substantial influence on the surface-active characteristics of the prepared amphipathic hemicellulose derivatives. Moreover, the results of desorption kinetics revealed that the amphiphilic hemicellulose molecules can reduce the interfacial tension between oil and water by adsorption at the interface and the petroleum hydrocarbons follow the pseudo-second-order desorption kinetic mode.
作者机构：
[Zhaoyang Yu; Yuan Liu; Shanshan Chang] College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China;Hunan Taohuajiang Bamboo Science & Technology Co. Ltd., Yiyang 413400, China;Astrum Innovations Limited, Wisdom Park, Country Garden, Changsha 410006, China;[Denis Rodrigue] Department of Chemical Engineering, Laval University, Quebec, G1V 0A6, Canada;[Xiaodong (Alice) Wang] Department of Wood and Forest Sciences, Laval University, Quebec, G1V 0A6, Canada
通讯机构：
[Jinbo Hu; Gonggang Liu; Shanshan Chang] C;College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China<&wdkj&>Astrum Innovations Limited, Wisdom Park, Country Garden, Changsha 410006, China<&wdkj&>College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China<&wdkj&>College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China<&wdkj&>Hunan Taohuajiang Bamboo Science & Technology Co. Ltd., Yiyang 413400, China<&wdkj&>Astrum Innovations Limited, Wisdom Park, Country Garden, Changsha 410006, China
摘要：
Similar to transpiration, the formulation of interfacial solar evaporation has been designed to perform water treatment. The concept involves wood-based support (tree) with a graphene-based layer acting as leaves. To enhance light absorption and solar-thermal conversion capacity, a novel holly-leaf graphene (HLG) layer with an individual hollowed-out structure was engineered. The formation mechanism of this HLG was shown to be linked to the strong capillarity forces in the polyporous wood. By creating biomimetic leaves made of graphene, the light-to-heat conversion performance can be improved, while exhibiting substantially lower thermal conductivity (74 mW/m/K) than natural wood. Under solar irradiation, HLG/wood exhibits an outstanding evaporation rate of 1.96 kg/m2/h, with an impressive efficiency of 94%. A theoretical model of HLG/wood based on the thermal management capability was built to further confirm its structural superiority in facilitating photothermal conversion. Consequently, a bilayer evaporator based on HLG/wood has the potential to revolutionize water purification processes, including desalination of seawater, removal of heavy metal ions, and treatment of organic dye-contaminated wastewater.
摘要：
Diabetes is one of the most prevalent diseases worldwide. The tissue regeneration of diabetes patients is known to be rather tricky as the result of vascular dysfunction, and this leads to various clinical complications including diabetic foot ulcers. The vascular endothelial cells, which compactly line the inner surface of blood vessels, are responsible for the growth and maintenance of blood vessels and play an essential role in tissue regeneration. Although the mechanical properties of cells are generally known to be regulated by physiological/pathological conditions, few studies have been performed to investigate vascular endothelial cellular mechanics under hyperglycemia and the biological functions related to tissue regeneration. In this study, we conduct a systematic investigation of this issue. The results suggested that the stiffness of human umbilical vein endothelial cells (HUVECs) can be significantly regulated by the glucose concentration, subsequently, leading to significant alterations in cell migration and proliferation capabilities that are closely related to tissue regeneration. The rearrangement of the cytoskeleton induced by hyperglycemia through Cdc42 was found to be one of the pathways for the alteration of the cell stiffness and the subsequent cell dysfunctions. Therefore, we suggested that the inhibition of Cdc42 might be a promising strategy to facilitate various tissue regeneration for diabetes patients.
摘要：
Ellagic acid (EA) is a natural antioxidant found in many fruits and vegetables. However, its solubility in water is poor, which limits its application. To overcome this limitation, the surfactants Span 20 and Tween 60 are used to increase its solubility in water. FTIR, TEM and laser particle size and zeta potential analysis were used to characterize the morphology and structure of ellagic acid emulsions. The antioxidant activity of surfactant-compatible ellagic acid was determined using various antioxidant evaluation methods such as DPPH and ABTS radical scavenging, reducing power and total antioxidant activity. The results indicate that the solubility of ellagic acid in water was improved by the addition of Span 20 and Tween 60, and ellagic acid formed complex particles in combination with Span 20 and Tween 60. Compared to pure ellagic acid, the antioxidant activity of ellagic acid lotion was significantly enhanced.
摘要：
Light is one of the most important environmental factors for plant growth. In the production process of tung oil tree cultivation, due to the inappropriate growth of shading conditions, the lower branches are often dry and dead, which seriously affects the yield of tung oil trees. However, little is known about the key factors of light-induced tree photomorphogenesis. In this study, a total of 22 VfBBX family members were identified to provide a reference for candidate genes in tung tree seedlings. All members of the VfBBX family have different numbers of highly conserved B-box domains or CCT domains. Phylogenetic evolution clustered the VfBBX genes into four categories, and the highest density of members was on chromosome 6. Interspecific collinearity analysis suggested that there were six pairs of duplicate genes in VfBBX members, but the expression levels of all family members in different growth and development stages of the tung tree were significantly divergent. After different degrees of shading treatment and physiological data determination of tung tree seedlings, the differential expression level and chlorophyll synthesis genes correlation analysis revealed that VfBBX9 was a typical candidate nuclear localization transcription factor that was significantly differentially expressed in light response. This study systematically identified the VfBBX gene family and provided a reference for studying its molecular function, enhanced the theoretical basis for tung tree breeding, and identified excellent varieties.
通讯机构：
[Yan, EP ] C;Cent South Univ Forestry & Technol, Res Ctr Forestry Remote Sensing & Informat Engn, Changsha 410004, Peoples R China.;Hunan Prov Key Lab Forestry Remote Sensing Based B, Changsha 410004, Peoples R China.;Key Lab Natl Forestry & Grassland Adm Forest Resou, Changsha 410004, Peoples R China.
关键词：
Close -range photography;Field Camera;Camellia Oleifera;Phenology features;YOLO v5
摘要：
A rapid and accurate yield estimation is of great significance to the management and sustainable development of Camellia Oleifera forests. Consequently, the simultaneous and accurate detection of key phenology features of Camellia Oleifera (buds, flowers, fruits) is crucial for precise yield estimation. This not only enables robotic harvesting but also allows for the prediction of peak flowering and fruit ripening periods to determine the optimal harvesting time. However, in recent studies, only Camellia Oleifera fruits have been marked and detected. Therefore, to enable rapid yield estimation, it is necessary to simultaneously detect the key phenology stages (buds, flowers, fruits) of Camellia Oleifera. In this study, we annotated, trained, and predicted Camellia Oleifera buds, flowers, and fruits collected via field cameras to observe their daily quantitative changes. Quantity change curves were generated to estimate crucial phenology stages. Phenology feature detection and transfer learning were performed using the YOLO v5 model, widely used YOLO v3 model, and CenterNet model with center point prediction, all trained on the same dataset. The best model for phenology feature detection was selected based on a comparison of average precision, with the YOLO v5 model achieving a higher mean Average Precision (mAP) value of 91.31 % compared to the CenterNet (85.43 %) and YOLO v3 (81.00 %) models. In YOLO v5, the AP values for bud, flower, and fruit detection were 82.80 %, 98.13 %, and 92.99 %, respectively, surpassing the CenterNet model by 3.97 %, 2.44 %, and 11.23 %, and the YOLO v3 model by 6.39 %, 17.13 %, and 11.67 %. The image size was adapted from 4000 x 3000 pixels to 512 x 512 pixels for model optimization. Additionally, data from the Seedling Center of Liuyang City collected at different years and times were utilized to showcase the generalizability and scalability of the selected models, resulting in mAP values of 86.14 %, 80.17 %, and 69.20 % for the three above-mentioned models respectively. The plotted phenology change curves unveiled that Camellia Oleifera undergoes four stages: fruit enlargement period, bud enlargement period, flowering period, and flower wilting period. The conclusion can be drawn that using field cameras and YOLOv5 can simultaneously achieve real-time detection of key phenology features (buds, flowers, and fruits) of Camellia Oleifera, in order to further record crucial phenology patterns (such as flowering peaks and fruit ripening periods). This study offers theoretical references and scientific evidence for monitoring changes in key phenology features of Camellia Oleifera.
摘要：
Metal-based materials are widely regarded as promising catalysts for activating peroxymonosulfate (PMS) to remove refractory organic contaminants with high efficiency. In our study, Ni-Fe layered double hydroxide (LDH)-biochar (BC) composite-induced PMS-based advanced oxidation process (AOP) was utilized to elucidate the degradation of tetracycline hydrochloride (TCH). In Ni-Fe LDH-BC/PMS system, more than 99% TCH (45 mu M) could be removed effectively at low doses of oxidant (PMS, 0.10 mM) and catalyst (Ni-Fe LDH-BC, 0.10 g/L) addition within 80 min. Besides, the Ni-Fe LDH-BC/PMS system showed high resistance to some inorganic anions, and the Ni-Fe LDH-BC composite possessed excellent reusability in the degradation of TCH (>99% in four cyclic experiments). The reaction mechanisms were investigated via electron paramagnetic resonance detection, chemical quenching tests, probe experiments, and electrochemical measurements. These results indicated that the electron-shuttle mechanism played the dominant role in the removal of TCH. It is worth noting that determination of PMS concentration can reflect the reliability of quenching experiments. In the Ni-Fe LDH-BC composite, BC could not only improve the dispersion of Ni-Fe LDH, but also increase the conductivity of Ni-Fe LDH. Overall, a successful modification strategy was proposed in our study to improve the catalytic property of Ni-Fe LDH, and reaction mechanisms of TCH degradation were discussed deeply and comprehensively.
摘要：
Single-atom catalysts have wide application prospects in peroxydisulfate (PDS)-based advanced oxidation process to degrade organic pollutants, but its catalytic performance is limited due to its cost, Metal-N coordination number, and single-atom loading amount. Herein, a novel nitrogen doped algal-based carbon confined singleatom copper catalyst (Cu-N/C-SAC((S))) was synthesized using molten salt assisted pyrolysis and coupling with PDS to degrade tetracycline (TC). AC-HAADF-STEM and XAFS analysis proved that single atom Cu was loaded (Content 1.9 %) successfully and coordinated with two N and two C. XPS and XANES spectra analysis suggested that Cu atoms mainly existed in a positive divalent state in Cu-N/C-SAC(S). When the catalyst dosage of Cu-N/CSAC((S)) was 0.1 g/L, TC was almost completely removed. Moreover, Cu-N/C-SAC(S) had a broad pH adaptation range and strong ability against interference. Singlet oxygen (O-1(2)), superoxide radicals (center dot O-2(-)), and electron transfer had an important contribution for TC removal. DFT calculations confirmed that the activation process of Cu-N/C-SAC((S)) producing SO4 center dot- was easier than the nitrogen doped blue-green algal-based carbon (N-BGAC). In addition, Cu-N/C-SAC((S)) possessed good recyclability and stability. The main degradation pathways of TC were analyzed, and the toxicity of the intermediates was calculated. This study provides a new solution strategy for the resource utilization of waste biomass, and provides technical support and theoretical guidance for the efficient application of single-atom catalysts in organic wastewater.
作者机构：
[Yufei Wu; Kelin Li; Xiaohua Fu] College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China
通讯机构：
[Yufei Wu] C;College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China
关键词：
Data envelopment analysis;Zero-sum game;Quality function deployment;Carbon emissions;Carbon reduction;Allowance allocation
摘要：
As the global economic environment changes, the concept of green and sustainable development has become the international community’s consensus. As a participant in the worldwide emission reduction plan, China is also under great pressure to reduce carbon emissions. As an example, this study constructs an optimal scheme for regional carbon emission allowance allocation in Hunan Province, China. We first forecast the total carbon emissions in 2030 for each city, state, and major industry in Hunan Province through a scenario and then innovatively use the mass function allocation theory in marketing to sort out the logical ideas of the optimization model. More importantly, we combine the zero-sum game theory to build the zero-sum game-data envelopment analysis model to continuously reallocate the carbon emission allowances of each city and state and major industries in Hunan Province until the optimal allocation scheme is reached. From the perspective of each city and state, the initial carbon emission efficiency level of fourteen cities in Hunan is high, but there are still some differences. From the perspective of industries, the initial efficiency of carbon emission of six major industries in Hunan is lower, and the difference in efficiency values is evident.
摘要：
It is important to reduce Cd and As content in brown rice in contaminated paddy soils. We conducted research on the effects of rice husk ash (RHA) on the Cd and As in the rhizosphere microenvironment (soil, porewater, and iron plaque) and measured the Cd, As, and Si content in rice plants. The main elements in RHA were Si (29.64%) and O (69.17%), which had the maximum adsorption capacity for Cd was 42.49 mg/kg and for As was 18.62 mg/kg. Soil pH and available Si content increased, while soil available Cd and As decreased following application of 0.5%-2% RHA. RHA promote the transformation of Cd to insoluble fraction, while As was transformed from a poorly soluble form to a more active one. RHA reduced Cd content and increased Si content in porewater, and reduced As only at the later rice growth stages. RHA increased the amount of iron plaque, thereby decreasing the Cd content in iron plaque, while increased the As content in it. Cd and inorganic As content in brown rice were decreased, to 0.31 mg/kg and 0.18 mg/kg, respectively. The decrease of Cd in brown rice was due to the decrease of Cd mobility in soil, thereby reducing root accumulation, while the decrease of As in brown rice was affected by the transport from roots to stems. Therefore, RHA can be considered as a safe and efficient in-situ remediation amendment for Cd and As co-contaminated paddy soil.(c) 2023 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
期刊：
Science of The Total Environment,2024年906:167219 ISSN：0048-9697
通讯作者：
Wang, Ping;Zhu, J
作者机构：
[Zhou, Tao; Sun, Jikang; Xing, Qinqin] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, 498 South Shaoshan Rd, Changsha 410004, Hunan, Peoples R China.;[Wang, Ping; Zhu, Jian; Zhu, J] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, 498 South Shaoshan Rd, Changsha 410004, Peoples R China.;[Liu, Zhiming] Eastern New Mexico Univ, Dept Biol, Portales, NM 88130 USA.
通讯机构：
[Wang, P; Zhu, J ] C;Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, 498 South Shaoshan Rd, Changsha 410004, Peoples R China.
关键词：
Cd stress;Koelreuteria paniculata;KpMIPS;Resistance
摘要：
Cadmium (Cd) pollution in soil is an important factor endangering plant growth and harming human health through food chains. Koelreuteria paniculata is an important woody plant for ecological restoration of Cd-contaminated soils. In this study, KpMIPS gene of K. paniculata was cloned, and the expressed protein (60kDa) had 1-phosphate synthase activity. The results showed that KpMIPS significantly promoted root development of K. paniculata and Arabidopsis thaliana, reduced damage to the roots of Arabidopsis thaliana caused by Cd, and decreased transfer of Cd to the aboveground parts of K. paniculata and Arabidopsis thaliana . In the K. paniculata plants overexpressing KpMIPS integrity of the root cells was maintained and the content of pectin and phytic acid was significantly increased. Overexpression of KpMIPS increased the Cd accumulation in the roots and decreased the Cd content in the stems and leaves. Clearly, KpMIPS could regulate the contents of pectin and phytic acid in K. paniculata, thereby passivating Cd(2+) and enriching it in the root cell wall, reducing the transfer of free Cd(2+) to other parts of K. paniculata, and providing a positive regulatory effect on the Cd resistance of K. paniculata. The results of the study provide a technical introduction for the selection and genetic improvement of target genes regulating heavy metal resistance of plants in phytoremediation technology.
