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Pristine/magnesium-loaded biochar and ZVI affect rice grain arsenic speciation and cadmium accumulation through different pathways in an alkaline paddy soil

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Journal of Environmental Sciences 2025年第1期147卷 630-641页

作者： Chen Zhang Dong Shi Chao Wang Guoxin Sun Huafen Li Yanxia Hu Xiaona Li Yanhui Hou Ruilun Zheng Institute of Grassland Flowers and EcologyBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China Beijing key laboratory of Farmland soil Pollution Prevention and Remediation Key Laboratory of Plant-Soil Interactions of the Ministry of EducationCollege of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China State key laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Cadmium(Cd)and arsenic(As)co-contamination has threatened rice production and food *** is challenging to mitigate Cd and As contamination in rice simultaneously due to their opposite geochemical ***-loaded biochar with outstanding adsorption capacity for As and Cd was used for the first time to remediate Cd/As contaminated paddy *** addition,the effect of zero-valent iron(ZVI)on grain As speciation accumulation in alkaline paddy soils was first *** effect of rice straw biochar(SC),magnesiumloaded rice straw biochar(Mg/SC),and ZVI on concentrations of Cd and As speciation in soil porewater and their accumulation in rice tissueswas investigated in a pot *** of SC,Mg/SC and ZVI to soil reduced Cd concentrations in rice grain by 46.1%,90.3%and 100%,and inorganic As(iAs)by 35.4%,33.1%and 29.1%,respectively,and reduced Cd concentrations in porewater by 74.3%,96.5%and 96.2%,*** of 51.6%and 87.7%in porewater iAs concentrationswere observed with Mg/SC and ZVI amendments,but notwith *** acid(DMA)concentrations in porewater and grain increased by a factor of 4.9 and 3.3,respectively,with ZVI *** three amendments affected grain concentrations of iAs,DMA and Cd mainly by modulating their translocation within plant and the levels of As(Ⅲ),silicon,dissolved organic carbon,iron or Cd in *** three amendments(SC,Mg/SC and ZVI)have the potential to simultaneously mitigate Cd and iAs accumulation in rice grain,although the pathways are different.

关键词： Cadmium(Cd) Arsenic(As)speciation Co-contamination Magnesium-loaded biochar Zero-valent iron(ZVI) Rice

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Combined biochar and wheat-derived endophytic bacteria reduces cadmium uptake in wheat grains in a metal-polluted soil

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Journal of Environmental Sciences 2025年第1期147卷 165-178页

作者： Zhihui Xiong Yaping Wang Linyan He Qi Sheng Xiafang Sheng College of Life Sciences Key Laboratory of Agricultural and Environmental MicrobiologyMinistry of AgricultureNanjing Agricultural UniversityNanjing 210095China

In this study,two wheat-derived cadmium(Cd)-immobilizing endophytic Pseudomonas paralactis M14 and Priestia megaterium R27 were evaluated for their effects on wheat tissue Cd uptake under hydroponic ***,the impacts of the biochar(BC),M14+R27(MR),and BC+MR treatments on wheat Cd uptake and the mechanisms involved were investigated at the jointing,heading,and mature stages of wheat plants under field-plot conditions.A hydroponic experiment showed that the MR treatment significantly decreased the above-ground tissue Cd content compared with theM14 or R27 *** BC+MRtreatment reduced the grain Cd content by 51.5%-67.7%and Cd translocation factor at the mature stage of wheat plants and increased the organic matter-bound Cd content by 31%-75%in the rhizosphere soils compared with the BC or MR *** with the BC or MR treatment,the relative abundances of the biomarkers associated with Gemmatimonas,Altererythrobacter,Gammaproteobacteria,Xanthomonadaceae,Phenylobacterium,and Nocardioides in the BC+MR-treated rhizosphere microbiome decreased and negatively correlated with the organic matter-bound Cd *** the BC+MR-treated root interior microbiome,the relative abundance of the biomarker belonging to Exiguobacterium increased and negatively correlated with the Cd translocation factor,while the relative abundance of the biomarker belonging to Pseudonocardiaceae decreased and positively correlated with the Cd translocation *** findings suggested that the BC+MR treatment reduced Cd availability and Cd transfer through affecting the abundances of these specific biomarkers in the rhizosphere soil and root interior microbiomes,leading to decreased wheat grain Cd uptake in the contaminated soil.

关键词： Cd-immobilizing endophytic bacteria Cd-contaminated soil Biochar+endophytic bacteria Grain Cd uptake Specific biomarkers

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Phosphorylation modification reverses the transcriptional inhibitory activity of CsMYB4a in tea plants(Camellia sinensis)

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Horticultural plant Journal 2025年第1期11卷 406-416页

作者： Guoliang Ma Yunyun Han Tongtong Li Tao Xia Liping Gao School of Life Science Anhui Agricultural UniversityHefeiAnhui 230036China State key laboratory of Tea plant Biology and Utilization Key Laboratory of Tea Biology and Tea Processing of Ministry of AgricultureAnhui Provincial Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiAnhui 230036China

The members of the fourth subgroup of R2R3-MYB(Sg4 members)are well-known inhibitors of phenylpropanoid and lignin synthesis *** C2 domain is closely related to the transcriptional inhibitory activity of Sg4 *** modification enhances the transcriptional inhibitory activity of Sg4 ***,we identified a phosphorylation site on the C2 domain of Cs MYB4a from tea plants(Camellia sinensis).A mitogen-activated protein kinase(MAPK),named Cs MPK3-2,phosphorylated this site on the C2 domain of Cs *** experiments revealed that phosphorylation of Cs MYB4a weakened its ability to inhibit the gene expression of PAL,C4H,and 4CL in the phenylpropanoid pathway and activated the expression of transcription factor YABBY5,maintaining the adaxial-abaxial polarity of the *** out Nt YAB5 in Cs MYB4a transgenic tobacco partially repaired the leaf wrinkling phenotype caused by Cs *** C1 domain exhibited an activation function when the C2 domain of Cs MYB4a was phosphorylated by Cs MPK3-2,causing this reversal *** results enrich our understanding of the regulatory diversity of Sg4 members.

关键词： Camellia sinensis Cs MYB4a Phenylpropanoid pathway MAPK YABBY Leaf development

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BmATAD3A mediates mitochondrial ribosomal protein expression to maintain the mitochondrial energy metabolism of the silkworm,Bombyx mori

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Insect Science 2025年第1期32卷 193-208页

作者： Zhanqi Dong Nachuan Liao Yan Luo Ya Zhang Liang Huang Peng Chen Cheng Lu Minhui Pan State key laboratory of Resource Insects Southwest UniversityChongqingChina key laboratory of Sericultural Biology and Genetic Breeding Ministry of Agriculture and Rural AffairsSouthwest UniversityChongqingChina

ATAD3A is a mitochondrial membrane protein belonging to the ATPase family that contains the AAA+*** is widely involved in mitochondrial metabolism,protein transport,cell growth,development and other important life *** has previously been reported that the deletion of ATAD3A causes growth and development defects in humans,mice and Caenorhabditis *** delve into the mechanism underlying ATAD3A defects and their impact on development,we constructed a Bombyx mori ATAD3A(BmATAD3A)defect model in silkworm *** aim to offer a reference for understanding ATAD3A genetic defects and elucidating the molecular regulatory *** results showed that knockout of the BmATAD3A gene significantly affected the weight,survival rate,ATPase production and mitochondrial metabolism of individuals after 24 h of *** metabolomics and transcriptomics analysis further demonstrated that BmATAD3A knockout inhibits amino acid biosynthesis through the regulation of mitochondrial ribosomal protein ***,our findings indicate that BmATAD3A knockout impeded mitochondrial activity and ATPase synthesis and suppressed the mitochondrial oxidative phosphorylation pathway through *** mitochondrial ribosomal protein L11(BmmRpL11).These results provide novel insights into the molecular mechanisms involved in the inhibition of development caused by ATAD3A deficiency,offering a potential direction for targeted therapy in diseases associated with abnormal ATAD3A expression.

关键词： ATAD3A ATPase BmmRpL1l Bombyx mori mitochondrial ribosomal protein

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Recycling Fe and improving organic pollutant removal via in situ forming magnetic core-shell Fe_(3)O_(4)@CaFe-LDH in Fe(Ⅱ)-catalyzed oxidative wastewater treatment

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Journal of Environmental Sciences 2025年第1期147卷 523-537页

作者： Ting He Jie Sun Liangwei Deng Jialin Ming Changwei Hu key laboratory of Green Chemistry and Technology Ministry of EducationCollege of ChemistrySichuan UniversityChengdu 610064China Biogas Institute of ministry of agriculture and Rural Affairs Chengdu 610041China Inner Mongolia key laboratory of Fine Organic Synthesis Inner Mongolia UniversityHohhot 010021China

Due to its high efficiency,Fe(Ⅱ)-based catalytic oxidation has been one of the most popular types of technology for treating growing organic pollutants.A lot of chemical Fe sludge alongwith various refractory pollutantswas concomitantly produced,whichmay cause secondary environmental problemswithout proper *** here innovatively proposed an effective method of achieving zero Fe sludge,reusing Fe resources(Fe recovery=100%)and advancing organics removal(final TOC removal>70%)simultaneously,based on the in situ formation of magnetic Ca-Fe layered double hydroxide(Fe_(3)O_(4)@CaFe-LDH)***(Ca^(2+)and Fe^(3+))concentration(≥30 mmol/L)and their molar ratio(Ca:Fe≥1.75)were crucial to the success of the *** nano Fe_(3)O_(4)was designed to be involved in the Fe(Ⅱ)-catalytic wastewater treatment process,and was modified by oxidation intermediates/products(especially those with COO-structure),which promoted the co-precipitation of Ca^(2+)(originated from Ca(OH)_(2)added after oxidation process)and byproduced Fe^(3+)cations on its surface to in situ generate core-shell Fe_(3)O_(4)@*** oxidation products were further removed during Fe_(3)O_(4)@CaFe-LDH material formation via intercalation and *** applicable to many kinds of organicwastewater,such as bisphenol A,methyl orange,humics,and biogas *** prepared magnetic and hierarchical CaFe-LDH nanocomposite material showed comparable application performance to the recently reported *** work provides a new strategy for efficiently enhancing the efficiency and economy of Fe(Ⅱ)-catalyzed oxidative wastewater treatment by producing high value-added LDHs materials.

关键词： CaFe layered double hydroxide Fe(Ⅱ)-catalytic oxidation Fe recycling Magnetic nanomaterial in situ formation Fe_(3)O_(4)modification

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Independent and interactive effects of N and P additions on foliar P fractions in evergreen forests of southern china

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Forest Ecosystems 2025年第1期12卷 66-73页

作者： Qingquan Meng Zhijuan Shi Zhengbing Yan Hans Lambers Yan Luo Wenxuan Han key laboratory of plant–soil Interactions Ministry of EducationCollege of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China Institute of Botany Chinese Academy of SciencesBeijing 100093China School of Biological Sciences The University of Western AustraliaPerthWA6009Australia key laboratory of Oasis Ecology of Education ministry College of Ecology and EnvironmentXinjiang UniversityUrumqi 830017China

Fertilization or atmospheric deposition of nitrogen(N)and phosphorus(P)to terrestrial ecosystems can alter soil N(P)availability and the nature of nutrient limitation for plant *** the allocation of leaf P fractions is potentially an adaptive strategy for plants to cope with soil N(P)availability and nutrient-limiting ***,the impact of the interactions between imbalanced anthropogenic N and P inputs on the concentrations and allocation proportions of leaf P fractions in forest woody plants remains *** conducted a metaanalysis of data about the concentrations and allocation proportions of leaf P fractions,specifically associated with individual and combined additions of N and P in evergreen forests,the dominant vegetation type in southern china where the primary productivity is usually considered limited by *** assessment allowed us to quantitatively evaluate the effects of N and P additions alone and interactively on leaf P allocation and use *** addition(exacerbating P limitation)reduced the concentrations of leaf total P and different leaf P *** addition reduced the allocation to leaf metabolic P but increased the allocation to other fractions,while P addition showed opposite *** simultaneous additions of N and P showed an antagonistic(mutual suppression)effect on the concentrations of leaf P fractions,but an additive(summary)effect on the allocation proportions of leaf P *** results highlight the importance of strategies of leaf P fraction allocation in forest plants under changes in environmental nutrient ***,our study identified critical interactions associated with combined N and P inputs that affect leaf P fractions,thus aiding in predicting plant acclimation strategies in the context of intensifying and imbalanced anthropogenic nutrient inputs.

关键词： Anthropogenic nutrient inputs Individual and combined effects Interactive effects Leaf phosphorus fractions Nitrogen and phosphorus additions Nutrient-utilization strategies Woody plants

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P450 gene CYP321A8 is responsible for cross-resistance of insecticides in field populations of Spodoptera frugiperda

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Insect Science 2025年第1期32卷 227-242页

作者： Yumei Chen Yongjie Cen Yu Liu Yanan Peng Yiguang Lin Qili Feng Yong Xiao Sichun Zheng Guangdong Provincial key laboratory of Insect Developmental Biology and Applied Technology Guangzhou Key Laboratory of Insect Development Regulation and Application ResearchInstitute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhouChina Institute of plant Protection Guangdong Academy of Agricultural SciencesKey Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of High Technology for Plant ProtectionGuangzhouChina

Continuous and long-term use of traditional and new pesticides can result in cross-resistance among pest populations in different *** on the mechanism of cross-resistance and related genes will help resistance management and field pest *** this study,the pesticide-resistance mechanism in Spodoptera frugiperda(FAW)was studied with field populations in 3 locations of South *** FAW populations were highly resistant to traditional insecticides,chlorpyrifos(organophosphate)and deltamethrin(pyrethroid),and had higher levels of cytochrome P450 activity than a non-resistant laboratory *** of P450 activity by piperonyl butoxide significantly increased the sensitivity of resistant FAW in 3 locations to chlorpyrifos,deltamethrin and chlorantraniliprole(amide),a new type of insecticide,suggesting that P450 detoxification is a critical factor for insecticide resistance in field FAW *** analysis indicated that 18 P450 genes were upregulated in the field FAW populations collected in 3 regions and in 2 consecutive years,with CYP321A8,the most significantly upregulated *** of CYP321A8 messenger RNA by RNA interference resulted in an increased sensitivity to the 3 tested insecticides in the field *** activity and molecular docking analyses indicated that CYP321A8 enzyme was able to metabolize the 3 tested insecticides and interact with 8 other types of insecticides,confirming that CYP321A8 is a key cross-resistance gene with a wide range of substrates in the field FAW populations across the different regions and can be used as a biomarker and target for management of FAW insecticide resistance in fields.

关键词： cross-resistance cytochrome P450 field population insecticide resistance Spodopterafrugiperda

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Insight into the sorption and desorption pattern of pyrrolizidine alkaloids and their N-oxides in acidic tea(Camellia sinensis)plantation soils

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Journal of Environmental Sciences 2025年第2期148卷 350-363页

作者： Yuting Lu Haolei Han Yuexing Yi Yunfeng Chai ChenWang Xiangchun Zhang Xiangde Yang Hongping Chen Tea Research Institute Chinese Academy of Agricultural SciencesHangzhou 310008China Graduate School of Chinese Academy of Agricultural Sciences Beijing 100081China School of Chemical Engineering and Materials Zhejiang University of TechnologyHangzhou 310008China key laboratory of Tea Quality and Safety&Risk Assessment Ministry of AgricultureHangzhou 310008China key laboratory of Tea Quality and Safety Control Ministry of Agriculture and Rural AffairsHangzhou 310000China

Pyrrolizidine alkaloids(PAs)and their N-oxides(PANOs)are phytotoxins produced by various plant species and have been emerged as environmental *** sorption/desorption behaviors of PAs/PANOs in soil are crucial due to the horizontal transfer of these natural products from PA-producing plants to soil and subsequently absorbed by plant *** study firstly investigated the sorption/desorption behaviors of PAs/PANOs in tea plantation soils with distinct *** amounts for seneciphylline(Sp)and seneciphylline-N-oxide(SpNO)in three acidic soils ranged from 2.9 to 5.9μg/g and 1.7 to 2.8μg/g,*** percentages for Sp and SpNO were from 22.2%to 30.5%and 36.1%to 43.9%.In the mixed PAs/PANOs systems,stronger sorption of PAs over PANOs was occurred in tested ***,the Freundlich models more precisely described the sorption/desorption *** exchange capacity,sand content and total nitrogen were identified as major influencing factors by linear regression ***,the soils exhibiting higher sorption capacities for compounds with greater *** were more likely to migrate within soils and be absorbed by tea *** contributes to the understanding of environmental fate of PAs/PANOs in tea plantations and provides basic data and clues for the development of PAs/PANOs reduction technology.

关键词： Pyrrolizidine alkaloids Sorption-desorption behavior Tea plantation system Acidic soil Linear regression model

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Curcumin attenuates ochratoxin A and hypoxia co‑induced liver injury in grass carp(Ctenopharyngodon idella)by dual targeting endoplasmic reticulum stress and apoptosis via reducing ROS content

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Journal of Animal Science and Biotechnology 2025年第1期16卷 408-423页

作者： Liangqin Wu Piao Zhao Pei Wu Weidan Jiang Yang Liu Hongmei Ren Xiaowan Jin Xiaoqiu Zhou Lin Feng Animal Nutrition Institute Sichuan Agricultural UniversityChengdu 611130China Fish Nutrition and Safety Production University key laboratory of Sichuan Province Sichuan Agricultural UniversityChengdu 611130China key laboratory of Animal Disease-Resistance Nutrition Ministry of EducationMinistry of Agriculture and Rural AffairsKey Laboratory of Sichuan ProvinceChengduSichuan 611130China

Background Ochratoxin A(OTA)is a toxin widely found in aquafeed ingredients,and hypoxia is a common prob-lem in fish *** practice,aquatic animals tend to be more sensitive to hypoxia while feeds are contaminated with OTA,but no studies exist in this *** research investigated the multiple biotoxicities of OTA and hypoxia combined on the liver of grass carp and explored the mitigating effect of curcumin(CUR).Methods A total of 720 healthy juvenile grass carp(11.06±0.05 g)were selected and assigned randomly to 4 experi-mental groups:control group(without OTA and CUR),1.2 mg/kg OTA group,400 mg/kg CUR group,and 1.2 mg/kg OTA+400 mg/kg CUR group with three replicates each for 60 ***,32 fish were selected,divided into nor-moxia(18 fish)and hypoxia(18 fish)groups,and subjected to hypoxia stress for 96 *** CUR can attenuate histopathological damage caused by coming to OTA and hypoxia by reducing vacu-olation and nuclear *** alleviation of this damage was associated with the attenuation of apoptosis in the mitochondrial pathway by decreasing the expression of the pro-apoptotic proteins Caspase 3,8,9,Bax,and Apaf1 while increasing the expression of the anti-apoptotic protein Bcl-2,and attenuation of endoplasmic reticulum stress(ERS)by reducing Grp78 expression and chop *** may be attributed to the fact that the addi-tion of CUR increased the levels of catalase(CAT)and glutathione reductase(GSH),increased antioxidant capacity,and ensured the proper functioning of respiratory chain complexes I and II,which in turn reduced the high produc-tion of reactive oxygen species(ROS),thus alleviating apoptosis and *** In conclusion,our data demonstrate the effectiveness of CUR in attenuating liver injury caused by the combination of OTA and *** study confirms the feasibility and efficacy of adding natural products to mitigate toxic damage to aquatic animals.

关键词： Apoptosis Curcumin Endoplasmic reticulum stress Grass carp Hypoxia Ochratoxin A Oxidative damage

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A PHYB-PIF4-auxin module promotes tomato graft formation in response to elevated ambient temperature

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Horticultural plant Journal 2025年第1期11卷 227-238页

作者： Xianmin Meng Feng Zhang Wencai Yang Qingmao Shang State key laboratory of Vegetable Biobreeding Key Laboratory of Horticultural Crop Biology and Germplasm Innovation(Ministry of Agriculture)Institute of Vegetables and FlowersChinese Academy of Agriculture SciencesBeijing 100081China Beijing key laboratory of Growth and Developmental Regulation for Protected Vegetable Crops Department of Vegetable ScienceCollege of HorticultureChina Agricultural UniversityBeijing 100193China

Grafting is an effective technique for increasing the resistance of vegetables to biotic and abiotic *** has been widely applied to produce solanaceous and melon *** is an important external factor affecting graft ***,the molecular mechanism by which external ambient temperature affects tomato graft formation remains *** this study,we demonstrated that elevating ambient temperature during grafting to 35℃ for more than 24 h after grafting accelerated vascular *** generated self-or heterografted combinations between phyB1B2 and pif4 loss-of-function mutant and wild-type plants,and were mutants unresponsive to graft formation at elevated ambient *** addition,elevated ambient temperature induced SlPIF4 expression during ***4 directly binds the promoters of auxin biosynthesis genes SlYUCCAs and activates their *** investigation revealed auxin accumulation in the graft junction under elevated ambient *** results illuminate the mechanism by which the PHYB-PIF4-auxin module promotes tomato graft formation in response to elevated ambient temperature.

关键词： Graft formation Tomato Temperature Vascular Auxin

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