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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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Dissolved organic matter characteristics linked to bacterial community succession and nitrogen removal performance in woodchip bioreactors

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Journal of Environmental Sciences 2025年第2期148卷 625-636页

作者： Achen Wang Xiang Li Xuesong Luo Guangwen He Daqing Huang Qiaoyun Huang Xue-Xian Zhang Wenli Chen National key laboratory of agricultural microbiology Huazhong Agricultural UniversityWuhan 430070China Hubei key laboratory of Soil Environment and Pollution Remediation College of Resources and EnvironmentHuazhong Agricultural UniversityWuhan 430070China School of Natural Sciences Massey University at AlbanyAuckland 0745New Zealand

Woodchip bioreactors are an eco-friendly technology for removing nitrogen(N)***,there needs to be more clarity regarding the dissolved organicmatter(DOM)characteristics and bacterial community succession mechanisms and their association with the N removal performance of *** laboratory woodchip bioreactors were continuously operated for 360 days under three influent N level treatments,and the results showed that the average removal rate of TN was 45.80 g N/(m3·day)when the influent N level was 100 mg N/L,which was better than 10 mg N/L and 50 mg N/*** succession of bacterial communities in response to influent N levels and DOM characteristics was an important driver of TN removal *** to high N levels enriched a copiotroph bacterial module(Module 1)detected by network analysis,including Phenylobacterium,Xanthobacteraceae,Burkholderiaceae,Pseudomonas,and Magnetospirillaceae,carrying N-cycle related genes for denitrification and ammonia assimilation by the rapid consumption of *** a process can increase carbon limitation to stimulate local organic carbon decomposition to enrich oligotrophswith fewer N-cycle potentials(Module 2).Together,this study reveals that the compositional change ofDOMand bacterial community succession are closely related to N removal performance,providing an ecological basis for developing techniques for N-rich effluent treatment.

关键词： Bacterial community succession Dissolved organic matter N removal performance Woodchip bioreactors

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Research progress on piperidine-containing compounds as agrochemicals

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Chinese Chemical Letters 2025年第1期36卷 58-67页

作者： Wei Sun Anjing Liao Li Lei Xu Tang Ya Wang Jian Wu state key laboratory of Green Pesticide Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou UniversityGuiyang 550025China

Piperidine is a crucial pharmacophore and a special scaffold in the realm of drug *** flexibility increases the molecule’s capability to bind to the *** piperidine-containing compounds are distinguished by their remarkable activity,and are increasingly becoming a vital category of *** this review,the research progress of piperidines in the discovery of pesticides was updated according to their active *** structure-activity relationships(SARs),and mechanisms of action of piperidine-containing compounds were also *** article is meant to enable readers to quickly understand piperidines,while providing ideas for creating piperidines with novel structures and unique mechanisms of action.

关键词： Piperidine Agrochemicals Biological activity Structure-activity relationships Mechanism of action

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A novel and visible ratiometric fluorescence determination of carbaryl based on red emissive carbon dots by a solvent-free method

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Chinese Chemical Letters 2025年第2期36卷 314-318页

作者： Meiling Xu Xinyang Li Pengyuan Liu Junjun Liu Xiao Han Guodong Chai Shuangling Zhong Bai Yang Liying Cui College of Resources and Environment Jilin Agricultural University state key laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University key laboratory of Straw Biology and Utilization The Ministry of Education Jilin Agricultural University

In this study, a simple and effective ratiometric fluorescence method has been developed for carbaryl detection, utilizing red emissive carbon dots（R-CDs）. The underlying principle of this proposed strategy relies on the rapid hydrolysis of carbaryl under an alkaline condition and production of 1-naphthol with blue-emission at 462 nm. Furthermore, the as-synthesized R-CDs（Em. 677 nm）, serve as a reference, enhancing the visual tracking of carbaryl through the transformation of fluorescent color from red to *** concentration of carbaryl exhibits a commendable linear correlation with the ratio of fluorescence intensity, ranging from 0 to 20 μg/m L（R2= 0.9989） with a low detection limit of 0.52 ng/m L. Additionally, the described methodology can be used for the enzyme-free visual assay of carbaryl, even in the presence of other carbamate pesticides and metal ions, in tap water and lake water samples with excellent accuracy（spiked recoveries, 94%–106.1%）, high precision(relative standard deviation（RSD） ≤ 2.42),and remarkable selectivity. This fast and highly sensitive naked-eye ratiometric sensor holds immense promise for carbaryl detection in intricate environments and food safety fields.

关键词： Carbaryl detection Carbon dots Fluorescence sensor Quantum yield Visual detection

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A novel supramolecular assembly based on nor-seco-cucurbit[10]uril for spermine sensing and artificial light-harvesting

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Chinese Chemical Letters 2025年第1期36卷 262-266页

作者： Ran Cen Yan-Yan Tang Li-Xia Chen Zhu Tao Xin Xiao National key laboratory of Green Pesticide State Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationKey Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou ProvinceGuizhou UniversityGuiyang 550025China

A supramolecular assembly composed of perylene diimide derivative(PDI-nm)and nor-secocucurbit[10]uril(ns-Q[10])was *** excellent host-guest interaction between PDI-nm and nsQ[10]prevented the aggregation-caused quenching(ACQ)effect of PDI-nm,resulting in a luminescent *** addition of spermine to the PDI-nm/ns-Q[10]assembly restored the ACQ of PDI-nm due to the competitive binding of spermine to ns-Q[10],which released *** assembly based on this principle showed ultra-high sensitivity for the detection of spermine with a detection limit as low as7.84×10^(-7)mol/L in aqueous solution and 3.69×10^(-7)mol/L in plasma ***,an artificial light-harvesting system based on this assembly was proposed,benefiting from its good luminescent *** red(Ni R)functioned as an acceptor loaded into assembly,and a highly efficient energy transfer process occurred from PDI-nm/ns-Q[10]to Ni R,with an efficiency up to 87%.

关键词： Nor-seco-cucurbituril Perylene diimide derivative Spermine Light-harvesting

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The MON1–CCZ1 complex plays dual roles in autophagic degradation and vacuolar protein transport in rice

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Journal of Integrative Plant Biology 2025年第1期67卷 35-54页

作者： Binglei Zhang Yihua Wang Yun Zhu Tian Pan Haigang Yan Xin Wang Ruonan Jing Hongming Wu Fan Wang Yu Zhang Xiuhao Bao Yongfei Wang Pengcheng Zhang Yu Chen Erchao Duan Xiaohang Han Gexing Wan Mengyuan Yan Xiejun Sun Cailin Lei Zhijun Cheng Zhichao Zhao Ling Jiang Yiqun Bao Yulong Ren Jianmin Wan state key laboratory of Crop Gene Resources and Breeding National Key Facility for Crop Gene Resources and Genetic ImprovementInstitute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China College of Life Sciences Nanjing Agricultural UniversityNanjing 210095China state key laboratory of Crop Genetics&Germplasm Enhancement and Utilization Nanjing Agricultural UniversityNanjing 210095China Zhongshan Biological Breeding laboratory Nanjing 210095China

Autophagy is a highly conserved cellular program in eukaryotic cells which mediates the degradation of cytoplasmic components through the lysosome,also named the vacuole in ***,the molecular mechanisms underlying the fusion of autophagosomes with the vacuole remain ***,we report the functional characterization of a rice(Oryza sativa)mutant with defects in storage protein transport in endosperm cells and accumulation of numerous autophagosomes in root *** and immunocytochemical experiments showed that this mutant exhibits a defect in the fusion between autophagosomes and *** mutant harbors a loss-of-function mutation in the rice homolog of Arabidopsis thaliana MONENSIN SENSITIVITY1(MON1).Biochemical and genetic evidence revealed a synergistic interaction between rice MON1 and AUTOPHAGY-RELATED 8a in maintaining normal growth and *** addition,the rice mon1 mutant disrupted storage protein sorting to protein storage ***,quantitative proteomics verified that the loss of MON1 function influenced diverse biological pathways including autophagy and vacuolar transport,thus decreasing the transport of autophagic and vacuolar cargoes to ***,our findings establish a molecular link between autophagy and vacuolar protein transport,and offer insights into the dual functions of the MON1–CCZ1(CAFFEINE ZINC SENSITIVITY1)complex in plants.

关键词： autophagic degradation MON1–CCZ1 Rab7 rice vacuolar trafficking

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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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Integration of CRISPR screening and proteomic analysis of WDR91 manipulation of endosome-to-cytosol transport of African swine fever virus

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Science China Life Sciences 2025年

作者： Hailong Liu Yilin Guo Zishi Guo Limeng Sun Dagang Tao Xinyun Li Guiqing Peng Shuhong Zhao Shengsong Xie key laboratory of agricultural Animal Genetics Breeding and Reproduction of Ministry of Education&Key Lab of Swine Genetics and Breeding of Ministry of Agriculture and Rural AffairsHuazhong Agricultural University state key laboratory of agricultural microbiology College of Veterinary MedicineHuazhong Agricultural University Hubei Hongshan laboratory Frontiers Science Center for Animal Breeding and Sustainable Production

Dear Editor,African swine fever virus (ASFV) relies heavily on host cellular components for replication, highlighting the complex relationship between the virus and its host(Alcamíet al., 1990). Despite this reliance, the molecular mechanisms governing ASFV infection of host cells remain poorly understood. The low availability of susceptible and permissive cell lines for ASFV replication has hindered research on virus-host interactions, impeding effective antiviral drugs and infection-resistant pig development. Notably, CRISPR screening offers an unbiased and comprehensive method to uncover host factors that are necessary for viral infection,providing a promising avenue for exploring ASFV-host interactions (Puschnik et al., 2017).

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Conjunctival microbiota variations in a subset of middleaged and elderly individuals from Beijing,China

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International Journal of Ophthalmology(English edition) 2025年第2期18卷 237-243页

作者： Tian-Yao Zhao Yu-Chen Wang Ying-Juan Sun Jun-Yue Wang Xiao-Dan Jiang Xue-Min Li Ai-Hua Deng Department of Ophthalmology Peking University Third HospitalBeijing Key Laboratory of Restoration of Damaged Ocular NerveBeijing 100191China Fangshan Hospital Beijing University of Chinese Medicine Beijing 102400China CAS key laboratory of Pathogenic microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China state key laboratory of Animal Nutrition and Feeding Ministry of Agriculture and Rural Affairs Feed Industry CentreAgricultural UniversityBeijing 100193China

AIM:To isolate and identify the conjunctival microbiota of cataract patients and analyze the associated influencing ***:This study recruited 216 participants(216 eyes)from April 2022 to July *** the condition of no antibiotic use prior to cataract surgery,sterile swabs were used to collect samples from the lower conjunctival *** cultures were then conducted,followed by species identification through 16S rDNA gene *** factors associated with positive or negative bacterial isolation rates were analyzed,including age,gender,meibomian gland dysfunction(MGD),history of hypertension,history of diabetes,history of cancer,history of infectious diseases and the habit of wearing ***:Among the 216 eyes,78 eyes yielded isolates,with an isolation rate of 36.11%,detecting a total of 122 ***-positive rods accounted for 49.18%(60 strains),gram-positive cocci accounted for 45.08%(55 strains),gram-negative bacteria accounted for 4.92%(6 strains),and fungi accounted for 0.82%(1 strain).This study found that the most abundant genera in the conjunctival sac were Corynebacterium(42.62%),Staphylococcus(31.15%),Micrococcus(9.84%),Acinetobacter(4.10%),and Bacillus(3.28%).Furthermore,age(P=0.006),gender(P=0.039),diabetes(P=0.003),history of infectious diseases(P=0.02),and duration of mask replacement(P<0.001)were important factors influencing the positive bacterial culture of the conjunctival *** hypertensive patients exhibited a higher isolation rate of conjunctival bacteria,it did not reach statistical significance,and the history of cancer did not affect the isolation rate of the conjunctival microbial community in cataract patients before ***:Potential changes are observed in the conjunctival microbiota among a sample of middleaged and elderly individuals from Beijing,***,an increased isolation rate of Corynebacterium and Micrococcus is detected,suggesting a possible change in the mic

关键词： conjunctival microbiota 16S rDNA middle-aged and elderly population mask cataract surgery

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Delaying wheat sowing date and increasing sowing rate promotes lignin synthesis and reduces lodging

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The Crop Journal 2025年第1期13卷 269-280页

作者： Chunhui Li Haixing Cui Min Jin Shufang Sun Jiayu Wang Yongli Luo Yong Li Zhenlin Wang state key laboratory of Wheat Improvement Agronomy College of Shandong Agricultural UniversityTai’an 271000ShandongChina

Population size plays a crucial role in determining wheat *** carbohydrate accumulation resulting from increased competition between populations and individuals leads to poor-quality *** sowing date can mitigate competition in densely planted ***,the underlying mechanism by which it confers resistance to wheat lodging remains *** this study,Zimai 28(lodging-sensitive variety)and Shannong 28(lodging-resistant variety)were used with three sowing treatments on October 22(S1),October 28(S2),and November 3(S3).The sowing rate was adjusted to ensure adequate population size and consistency in the overwintering populations across sowing dates(300 plant m2 for S1,375 plant m2 for S2,and 525 plant m2 for S3).The lodging resistance in winter wheat was increased by delayed sowing and increased sowing rate,which led to a reduction in tiller numbers and fostered primary stem development.A reduction in the overwinter cumulative temperature from 500 to 450C,coupled with an elevation in sowing rates from 300 to 375 plant m2(transition from S1 to S2),corresponded with a notable increase in structural carbohydrates(lignin,cellulose,hemicellulose,and pectin)by 175.07 mg g***,there was a moderate increase in non-structural carbohydrates,including soluble sugars and starch,by 15.54 mg g*** sowing and increased sowing rate elevated the precursor contents of lignin *** metabolic activity of related pathways ultimately increased dimer/trimer *** summary,this study highlights the pivotal role of lignin metabolites and cross-linked structures in determining the stem stiffness breaking strength.

关键词： Wheat Lodging Stem quality Carbohydrates Lignin metabolism

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