作者机构：
[Lei, Junjie; Chen, Yazhen; Xu, Yichen; Yan, Wende; Zhang, Yi; Wu, Xiaohong; Wang, Jun; Li, Bowen] Cent South Univ Forestry & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South C, Changsha 410004, Peoples R China.;[Peng, Yuanying] Lewis Univ, Coll Arts & Sci, Romeoville, IL 60446 USA.;[Chen, Xiaoyong] Governors State Univ, Coll Arts & Sci, University Pk, IL 60484 USA.;[Farooq, Taimoor Hassan] Bangor Univ, Bangor Coll China, Joint Sch, Changsha 410004, Peoples R China.;[Farooq, Taimoor Hassan] Cent South Univ Forestry & Technol, Changsha 410004, Peoples R China.
通讯机构：
[Wang, J ] C;Cent South Univ Forestry & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South C, Changsha 410004, Peoples R China.;Lutou Natl Stn Sci Observat & Res Forest Ecosyst H, Yueyang 414000, Peoples R China.
关键词：
intercropping;purple soil slope farmland;surface runoff;interflow;nitrogen and phosphorus loss
摘要：
Soil and water loss represent a significant environmental challenge in purple soil cropland in China. However, the quantity and mechanism of nutrient loss from purple soil remain unclear. To understand water and soil conservation and address nitrogen (N) and phosphorus (P) mitigation in Camellia oleifera forest stands on purple soil slope farmland, this study aimed to explore the resistance control effect of forest stands on N and P loss in such agricultural landscapes. In the study, a runoff plot experiment was conducted in purple soil slope farmland. The experiment included three distinct treatments: intercropping of oil tea (Camellia oleifera) and ryegrass (Lolium perenne L.), Camellia oleifera monoculture, and barren land served as the control treatment (CK). Water samples were collected and analyzed from the soil surface runoff and the middle soil layer at a depth of 20 cm (interflow) in three treatment plots under natural rainfall conditions in 2023. Various nutrient components, including total nitrogen (TN), dissolved nitrogen (DN), nitrate nitrogen (NO3--N), ammonium nitrogen (NH4+-N), particulate nitrogen (PN), total phosphorus (TP), dissolved phosphorus (DP), phosphate (PO4+-P), and particulate phosphorus (PP), were measured in the water samples. The results indicated that intercropping effectively mitigated the loss of various forms of N and P in both surface runoff and interflow within purple soil slope farmland. Compared to the CK, the ryegrass intercropping reduced TN and TP loss by 29.3%-37.3% and 25.7%-38.9%, respectively. The ryegrass intercropping led to a decrease in the average total loss of TN, DN, NO3-N, and NH4+-N by 63.0, 24.3, 4.5, and 6.8 g/ha, corresponding to reductions of 33.3%, 47.6%, 58.3%, and 49.1%, respectively, compared to the CK. The average total loss of TP, DP, and PP decreased by 4.4, 1.8, and 1.4 g/hm(2) in the intercropping, reflecting reductions of 32.3%, 31.3%, and 31.1%, respectively. The most significant proportion was observed in PN and PP within the runoff water solution, accounting for 53.3%-74.8% and 56.9%-61.0% of the TN and TP, respectively. These findings establish a foundation for purple soil and water conservation. The research provides valuable insights for land management and policymakers in developing erosion prevention and control programs for sloping cultivated land with Camellia oleifera forests in purple soils. Additionally, it offers guidance for soil and water conservation and prevention of surface source pollution in purple soil regions.
通讯机构：
[Li, H ] C;Cent South Univ Forestry & Technol, Coll Forestry, Changsha, Peoples R China.;Key Lab Natl Forestry Grassland Adm Control Artifi, Changsha, Peoples R China.;Hunan Prov Key Lab Control Forest Dis & Pests, Changsha, Peoples R China.;Minist Educ, Key Lab Nonwood Forest Cultivat & Conservat, Changsha, Peoples R China.
关键词：
Colletotrichum fructicola;carbendazim;mechanism of resistance;β-tubulin isotypes
摘要：
Colletotrichum fructicola is the major pathogen of anthracnose in tea-oil trees in China. Control of anthracnose in tea-oil trees mainly depends on the application of chemical fungicides such as carbendazim. However, the current sensitivity of C. fructicola isolates in tea-oil trees to carbendazim has not been reported. Here, we tested the sensitivity of 121 C. fructicola isolates collected from Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangsu, and Jiangxi provinces in China to carbendazim. One hundred and ten isolates were sensitive to carbendazim, and 11 isolates were highly resistant to carbendazim. The growth rates, morphology, and pathogenicity of three resistant isolates were identical to those of three sensitive isolates, which indicates that these resistant isolates could form a resistant population under carbendazim application. These results suggest that carbendazim should not be the sole fungicide in control of anthracnose in tea-oil trees; other fungicides with different mechanisms of action or mixtures of fungicides could be considered. In addition, bioinformatics analysis identified two beta-tubulin isotypes in C. fructicola: Cf beta(1)tub and Cf beta(2)tub. E198A mutation was discovered in the Cf beta(2)tub of three carbendazim-resistant isolates. We also investigated the functional roles of two beta-tubulin isotypes. Cf Delta beta(1)tub exhibited slightly increased sensitivity to carbendazim and normal phenotypes. Surprisingly, Cf Delta beta(2)tub was highly resistant to carbendazim and showed a seriously decreased growth rate, conidial production, pathogenicity, and abnormal hyphae morphology. Promoter replacement mutant Cf Delta beta(2)-2x beta(1) showed partly restored phenotypes, but it was still highly resistant to carbendazim, which suggests that Cf beta(1)tub and Cf beta 2tub are functionally interchangeable to a certain degree.
作者机构：
[Liu, Falin; Liu, FL; Chen, Hao] Cent South Univ Forestry & Technol, Coll Forestry, Changsha, Peoples R China.
通讯机构：
[Liu, FL ] C;Cent South Univ Forestry & Technol, Coll Forestry, Changsha, Peoples R China.
关键词：
Fire disturbance;Ecosystem recovery;Subtropical climate;Prescribed burning
摘要：
Soil water repellency (SWR) is a physical phenomenon whereby the surface of soil particles cannot be, or resists being, moistened by water. The recovery process of fire-induced SWR can provide important evidence for ecosystem resilience, but most existing studies ignored this process. Prescribed burning is a widely used method to reduce the risk of fire and fuel. However, prescribed fires can increase SWR, reducing infiltration and increasing overland flow and subsequent soil erosion. In order to understand the ecosystem resilience process from fire-induced SWR, soil samples were collected before and after prescribed burning. Four different forest types in the Hunan province of China were studied. Soil samples at four different soil depths (0-5, 6-10, 11-15, and >15 cm) and four time intervals (3, 30, 180, and 360 d) after burning at different intensities were collected. No significant difference in SWR was found among the four forest types, but the SWR of soil in plantations was stronger than that in secondary forests before fire. Most soil samples showed slightly increased SWR after burning, SWR increasing with fire intensity. Surface soil (0-5 cm) SWR showed greater sensitivity to fire disturbance than subsurface soil (>5 cm). SWR had a smaller scope of influence and shorter recovery period in burned secondary forests. Although SWR recovered over time, recovery was slower with increasing fire intensity. SWR always recovered to pre-fire levels given sufficient time. Our study revealed the recovery process of SWR, and explored the temporal and spatial mechanisms of forest ecosystem recovery after prescribed burning.
期刊：
Journal of Luminescence,2024年268:120434 ISSN：0022-2313
通讯作者：
Zhang, XM
作者机构：
[Zhang, XM; Long, Fenzhong; Wu, Pianpian; Fu, Jiawei; Zhang, Xinmin] Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Hunan Prov Key Lab Mat Surface & Interface Sci & T, Changsha 410004, Peoples R China.
通讯机构：
[Zhang, XM ] C;Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Hunan Prov Key Lab Mat Surface & Interface Sci & T, Changsha 410004, Peoples R China.
关键词：
Chloroborate;Phosphor;Site occupation;White LED
摘要：
Investigation on Ce3+ ions occupying different cation sites of a specific compound is of great significance for exploring multicolor phosphors. Herein, we report the luminescent properties of Ce3+ in chloroborate Ca2BO3Cl host. Two kinds of Ce3+ f -d transitions have been observed via adjusting the doping concentration. The assignment for different Ce3+ sites to certain cation sites is corroborated by structural analysis (XRD), fluorescence spectroscopy (PL) and decay kinetic analysis. Information on the two Ce3+ sites' wavelengths of the five 5d bands in the Ca2BO3Cl host lattice together with ecfs, ec, D and Delta S are obtained. Moreover, with the increasing of Ce3+ doping concentration, the emission peak shows an obviously redshift, and the emission color changes from dark blue to blue. The tuning luminescence properties are attributed to the energy transfer from Ce II to Ce I. The optical properties of the as-fabricated white light-emitting diode (LED) are studied. However, the optical properties of current studied Ce3+ doped Ca2BO3Cl is not good enough to be a candidate for near-UV chip excited phosphor-converted white LED.
摘要：
In chemi-mechanical pulping process, selective fiber separation strategies directly affect pulp property. The secondary wall (SW) separation strategy and middle lamella (ML) separation strategy expose more chemical structures from polysaccharides and lignin on the pulp fiber surface, respectively. Hydrogen-containing groups in these chemical structures generate characteristic spectral changes in response to water perturbation, which makes it possible for surface property analysis of pulp fibers based on near-infrared spectroscopy (NIR). Here, two-dimensional correlation spectroscopy (2DCOS) was obtained by the dynamic NIR spectra of pulp fibers with various equilibrium moisture content (EMC). The 2DCOS-NIR can provide richer structural and distributional information about hydrogen-containing groups which characterize the differences in surface chemical properties due to selective separation of the fibers. In synchronous map, the fibers separated at SW have significant water perturbation-induced spectral changes at the bands due to polysaccharides, and the fibers separated at ML have characteristic spectral changes at the bands due to hydrogen-containing groups from lignin. Furthermore, the 2DCOS spectral features can also accurately reflect the variation in the distribution of hydrogen bonding on the fiber surface under different refining conditions, which directly affects the strength properties of pulp fibers. The PLSR model based on 2DCOS spectral features exhibits excellent and robust predictive performance for internal bond strength with RMSEp of 7.17 J/m2, R of 0.9378 and RPD value of 4.11.
摘要：
The long-term protection of bamboo against mold fungi remains a challenge in anti-mold technology, primarily due to the abundance of nutrients within bamboo cell lumens and the poor permeability of bamboo. This study aimed to enhance the effectiveness of organic compound biocide in the long-term protection of bamboo against mold fungi through bioincising pretreatment with Trametes versicolor. The results showed that bamboo pretreated with bioincising exhibited long-term mold resistance with an efficacy of 100 % in both 20-week laboratory and 3month outdoor tests. During T. versicolor bioincising, the fungal hyphae invaded the interior of the bamboo, leading to a notable 56.6 % increase in biocide uptake while causing an 8 % reduction in mass loss. Furthermore, bamboo pretreated with T. versicolor exhibited a reduction in both starch and reducing sugar contents, and a slight decrease in lignin and cellulose contents. These findings suggested that the improved long-term mold resistance was primarily due to the consumption of nutrients within the cell lumen and increased absorption of organic biocide by T. versicolor bioincising. This study highlighted the use of bio-pretreatment to improve the long-term mold resistance of bamboo, thus prolonging the durability of bamboo-based products.
摘要：
Transformation of biomass wastes or residues into functional carbon materials is one of the main approaches to improve their added value and utilization rate. In this work, an example of discarded bamboo fibers was used to fabricate trimetallic functionalized 1D carbon composite with excellent electromagnetic wave (EW) absorption performances, via a simple solvothermal-carbonization method. When the thickness is below 2.0 mm, the composite has a minimum reflection loss (RLmin) of -61.6 dB and a specific RL value of -253 dB mg-1 mm-1, as well as an effective absorption band of 5.4 GHz at a low mass loading of 15 wt%. Such good performances are attributed to the synergetic effect of dielectric loss from bamboo fiber carbon and magnetic loss from Fe-Co-Ni interaction that greatly improved the impedance matching. In addition, bamboo fibers with rough surface could endow ample core-shell FeCoNi nanoparticles to uniform embed, which brings large number of interfaces and defects for the composite to enhance the electromagnetic loss capacity. This work provides a trimetallic compositing idea and a sustainable design approach for using biomass wastes to produce stable and efficient EW absorption materials.
作者：
Su, Jiahui;Yang, Yadong;Wan, Caichao*;Li, Xingong;Chai, Yaling;...
期刊：
研究(英文),2024年7:0317 ISSN：2096-5168
通讯作者：
Wan, Caichao;Wu, YQ;Wan, CC
作者机构：
[Yang, Yadong; Li, Xingong; Wu, Yiqiang; Yuan, Jianzhong; Wan, Caichao; Chai, Huayun; Su, Jiahui; Wan, CC; Chai, Yaling] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.;[Wan, Caichao; Wan, CC] Yihua Lifestyle Technol Co Ltd, Shantou 515834, Peoples R China.
通讯机构：
[Wu, YQ ; Wan, CC] C;[Wan, CC ] Y;Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.;Yihua Lifestyle Technol Co Ltd, Shantou 515834, Peoples R China.
摘要：
Silica glass, known for its brittleness, weight, and non-biodegradable nature, faces challenges in finding suitable alternatives. Transparent wood, made by infusing polymers into wood, shows promise but is hindered by limited availability of wood in China and fire risks associated with its use. This study explores the potential of utilizing bamboo, which has a shorter growth cycle, as a valuable resource for developing flame-retardant, smoke-suppressing, and superhydrophobic transparent bamboo. A 3-layered flame-retardant barrier, composed of a top silane layer, an intermediate layer of SiO(2) formed through hydrolysis-condensation of Na(2)SiO(3) on the surface, and an inner layer of Na(2)SiO(3), has been confirmed to be effective in reducing heat release, slowing flame spread, and inhibiting the release of combustible volatiles, toxic smoke, and CO. Compared to natural bamboo and other congeneric transparent products, the transparent bamboo displays remarkable superiority, with the majority of parameters being notably lower by an entire order of magnitude. It achieves a long ignition time of 116 s, low total heat release (0.7 MJ/m(2)), low total smoke production (0.063 m(2)), and low peak CO concentration (0.008 kg/kg). Moreover, when used as a substrate for perovskite solar cells, the transparent bamboo displays the potential to act as a light management layer, leading to a marked efficiency enhancement of 15.29%. The excellent features of transparent bamboo make it an enticing choice for future advancements in flame-retardant glasses and optical devices.
作者机构：
[Zhong, Yijing; Zhai, Wenxiang; Wei, Xinli] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.;[Zhai, Wenxiang] Northeast Forestry Univ, Key Lab Biobased Mat Sci & Technol, Minist Educ, Harbin 150040, Heilongjiang, Peoples R China.
通讯机构：
[Wei, XL ] C;Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.
关键词：
Cork;Sheets;Silica aerogel;Gaseous products;Char functional groups
摘要：
Recently, a novel lightweight cork with enhanced thermal stability has been prepared using a respiratory impregnation method. In this paper, the thermal stability and decomposition of two kinds of cork CS-P (Quercus suber) and CV-P (Quercus variabilis B1) and corks that infused silica aerogel in cells CSS-P (Quercus suber) and CSV-P (Quercus variabilis B1) were systematically studied, and their decomposition mechanisms were proposed. The results showed that the decomposition was inhibited at 200 degrees C, and the pyrolysis was significantly inhibited at the main pyrolysis stage (400 degrees C). Interestingly, the evolved gaseous products and their evolution models have also changed. Specifically, CO2 and aldehyde emissions were significantly reduced in the main pyrolysis stage, reducing environmental pollution. Silica aerogel filler plays a catalytic role in the pyrolysis process, thus increasing the output of some value-added products (such as aromatics), which is suitable as the appropriate raw material or source of olefins to produce aliphatic rich pyrolysis biofuels. In general, the yield of biochar and bio-oil can be adjusted under low environmental pollution by loading silica aerogel and adjusting pyrolysis tem-perature. Corks that infused silica aerogel in cells may be a promising raw material for the production of biochar and biofuel through pyrolysis and contribute to the environmental and economic sustainability of the cork production industry.
摘要：
To improve the compatibility between Portland cement and bamboo fibre, bamboo fibres were modified by acetic acid and fermentation treatment and the modified bamboo fibres/Porland cement composites were prepared. The hydration curves of the bamboo fibres/Porland cement composites were measured and the area ratio under the cement hydration heat curve was used as the compatibility coefficient to evaluate the compatibility of bamboo fiber and cement. The hydration products at different hydration times were characterized by XRD, FTIR, and SEM. Moreover, the mechanical strengths of standard test blocks of Portland cement/bamboo fibre composites were tested to further verify the improved compatibility of bamboo fiber and Portland cement. The study shows that the compatibility between bamboo fibre and Portland cement was improved from 9% to 87%, the bending strength of Portland cement/bamboo fibre composite was increased from 638 N to 3678 N, and the compressive strength was increased from 1.5 MPa to 34.35 MPa.
摘要：
As green renewable resources, wood and its composites are widely used in the construction field, which puts forward higher requirements for their flame-retardant performance. In this study, a high-temperature hydrothermal crystallization method for in situ constructing an epoxy crosslinked Si-Al zeolite-like structural wood composite (WZLC) was reported. Under the action of amine guiding agents and epoxy resin, the zeolite-like catalytic structure constructed in poplar wood comprised negative electrocatalytic sites, which can efficiently catalyze the formation of the carbon layer and endow WZLC with excellent flame retardant, smoke-suppression, and self-extinguishing properties. Compared with the untreated wood (WN), the thermal stability of the treated wood (WZLC) was greatly improved, and the amount of volatile organic compounds released during the decomposition process was significantly reduced. The heat release rate, total heat release, smoke production rate, and total smoke production of WZLC1 decreased by 50.23%, 44.14%, 45.21%, and 28.46%, respectively. Particularly, CO and CO2 yields of WZLC significantly decreased by 92.26% and 92.02%, respectively, indicating that the Si-Al zeolite-like catalytic structure displayed excellent catalytic flame retardant properties, which can effectively decrease the thermal decomposition rate and combustion risk of the WZLC. This method uses less flame retardants to achieve a good flame retardant and smoke suppression effect, thereby reducing the risk of environmental pollution caused by too many flame retardants.
摘要：
As a popular ornamental plant and an effective species for controlling rocky desertification, the identification and protection of potential habitats of Lagerstroemia excelsa habitats hold significant importance. To gain a comprehensive understanding of the natural resources and growing conditions for L. excelsa, predictive modeling was employed to estimate the potential geographical distribution of the species during the Mid-Holocene (MH), the present, and the years 2050 and 2070. The projection was based on current occurrences, and we selected the relevant environmental attributes through the Pearson analysis and the Maximum Entropy Model (MaxEnt). The analysis revealed that temperature and precipitation are the primary environmental factors influencing L. excelsa distribution, with the Wuling Mountains identified as a center distribution hub for this species. The anticipated suitable area for L. excelsa is expected to experience marginal expansion under future climate scenarios. These results are invaluable for guiding the protection and sustainable utilization of L. excelsa in the face of climate change. Additionally, the data generated can be leveraged for enhanced introduction, breeding, selection, and cultivation of L. excelsa, taking into account the challenges posed by global warming.
作者机构：
[Bai, Yu; Cao, Yongxiang; Zhang, Naichang; Ning, Chendong] Power China Northwest Engn Corp Ltd, Xian 710065, Peoples R China.;[Cao, Yongxiang] Shaanxi Union Res Ctr Univ & Enterprise River & La, Xian 710065, Peoples R China.;[Wang, Yushi] Beijing Forestry Univ, Beijing 100083, Peoples R China.;[Jia, Jianbo] Cent South Univ Forestry & Technol, Changsha 410004, Peoples R China.
通讯机构：
[Jia, JB ] C;Cent South Univ Forestry & Technol, Changsha 410004, Peoples R China.
关键词：
sap flow;rainfall types;K-means clustering;sub-humid climate
摘要：
Sap flow is one of the most important physiological water transport processes of trees, and the characteristics of sap flow are greatly affected by the spatial and temporal distribution of water in the SPAC (soil–plant–atmosphere continuum). However, different precipitation characteristics have great influence on the water environment of forest trees, which causes considerable differences in sap flow. Therefore, researching the response of sap flow to precipitation type is the key to accurately determining plant transpiration in semi-arid areas. We used K-means clustering analysis to divide the rainfall during the study period into three rainfall types (the highest rainfall amount and intensity (types I), medium rainfall amount and intensity, with a long duration (types II); and the lowest rainfall amount and intensity (types III)) based on the rainfall amount and intensity in order to compare the differences in the response of sap flow trends and influencing factors of Pinus tabulaeformis and Robinia pseudoacacia under different rainfall types. The results showed that, under the daily scale average sap flow of P. tabulaeformis and R. pseudoacacia, rainfall type II decreased significantly relatively to rainfall types I and III (p < 0.05). In rainfall type II, The sap flow characteristics of R. pseudoacacia were positively correlated with solar radiation (p < 0.05), while those of P. tabulaeformis were positively correlated with temperature, solar radiation, and VPD (p < 0.01). The sap flow of P. tabulaeformis and R. pseudoacacia were significantly positively correlated with temperature, solar radiation, VPD, and soil moisture content (p < 0.01) and negatively correlated with relative humidity (p < 0.05) in rainfall type III. The hourly sap flow of P. tabulaeformis and R. pseudoacacia on rainfall days was higher than before the rainfall. Rainfall type I promoted the daily sap flow of both species, and the proportion of the sap flow in daytime was also higher. On rainy days, the sap flow rates of rainfall type I and III showed a “midday depression”. In type I rainfall events, the sap flow “midday depression” after rainfall occurred an hour ahead compared to the sap flow “midday depression” before rainfall. In type II rainfall events, the daytime sap flow rates of P. tabulaeformis and R. pseudoacacia were obviously inhibited, but the nighttime sap flow rate increased. In type III rainfall events, the sap flow before rainfall presented a unimodal curve versus time. The daily average sap flow of R. pseudoacacia was more susceptible to rainfall type II, while P. tabulaeformis was more susceptible to rainfall types I and III. The sap flow rate of R. pseudoacacia decreased on rainy days. The results show that the effects of different rainfall types on the sap flow trends of P. tabulaeformis and R. pseudoacacia were different. They revealed the responses of their sap flow trends to meteorological factors under different rainfall types, which provided basic data and theoretical support for further predicting the sap flow trends on rainy days, clarifying the effects of rainfall amount, rainfall duration, and rainfall intensity on sap flow trends and accurately estimating the transpiration water consumption of typical tree species in the sub-humid climate regions of China.
关键词：
Heavy metal stress;Transcriptional activation;Gibberellin signal;Phytoremediation
摘要：
Heavy metal pollution has become increasingly prominent, and bioremediation of heavy metal polluted areas is urgently needed. Broussonetia papyrifera is a pioneer tree species for vegetation restoration in the tailings area, while its molecular mechanism of heavy metal adaptation is not clear. Here, we report that a R2R3 MYB from B. papyrifera (BpMYB1) is involved in Cd accumulation by controlling the down-stream genes and mineral accumulation. Overexpression of BpMYB1 in B. papyrifera resulted in a significant increase in Cd accumulation and multiple gene transcription. Among the up-regulated genes, BpMYB1 could bind to ferrochelatase (BpFC2), basic helix-loop-helix transcription factor bHLH93 (BpbHLH93), and basic leucine zipper transcription factor bZIPs (BpbZIP1, BpbZIP-CPC1) by recognizing TATCCAOSAMY (TATCCA) motif and related promoter segments. Further investigations revealed that overexpression of BpbZIP1 promotes the absorption of Cd, BpMYB1 regulate Cd uptake in plant relating to Fe accumulation without Fe-deficiency pathway via recognizing the downstream BpbHLH93 and involving in PCs biosynthetic pathway via recognizing the target BpFC2. Moreover, the Cd response effect mediated by BpMYB1 was boosted by interacting with a DELLA protein BpGAI1, a vital member of of GA signaling. These results provide new insights into the molecular feedback mechanisms underlying BpMYB1-BpGAI1 controlled Cd uptake in plants, which will benefit for phytoremediation of Cd polluted soil.
作者机构：
[Yifan Tan; Fanhui Meng] Laboratory of Insect Behavior and Evolutionary Ecology, College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha 410004, China;[Xuanye Wen] Center for Biological Disaster Prevention and Control, National Forestry and Grassland Administration, Shenyang 110031, China;Authors to whom correspondence should be addressed.;[Jinxiu Yu; Mi Li; Wan Deng] Institute of Forestry and Grassland Protection, Hunan Academy of Forestry, Changsha 410018, China;[Xiudan Wang; Daohong Zhu] Authors to whom correspondence should be addressed.<&wdkj&>Laboratory of Insect Behavior and Evolutionary Ecology, College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha 410004, China
通讯机构：
[Xiudan Wang; Daohong Zhu] A;Authors to whom correspondence should be addressed.<&wdkj&>Laboratory of Insect Behavior and Evolutionary Ecology, College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha 410004, China
摘要：
Basilepta melanopus is a pest that severely affects oil tea plants, and the Notch signaling pathway plays a significant role in the early development of insect ovaries. In this study, we explored the function of the notch gene within the Notch signaling pathway in the reproductive system of B. melanopus. The functional domains and expression patterns of Bmnotch were analyzed. Bmnotch contains 45 epidermal growth factor-like (EGF-like) domains, one negative regulatory region, one NODP domain and one repeat-containing domain superfamily. The qPCR reveals heightened expression in early developmental stages and specific tissues like the head and ovaries. The RNA interference (RNAi)-based suppression of notch decreased its expression by 52.1%, exhibiting heightened sensitivity to dsNotch at lower concentrations. Phenotypic and mating experiments have demonstrated that dsNotch significantly impairs ovarian development, leading to reduced mating frequencies and egg production. This decline underscores the Notch pathway’s crucial role in fecundity. The findings advocate for RNAi-based, Notch-targeted pest control as an effective and sustainable strategy for managing B. melanopus populations, signifying a significant advancement in forest pest control endeavors.
