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Preceding crop rotation systems shape the selection process of wheat root-associated bacterial communities

Journal of Integrative Agriculture 2025年第2期24卷 739-753页

作者： Shuting Yu Tianshu Wang Li Wang Shuihong Yao Bin Zhang State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China/Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural SciencesBeijing 100081China College of Resources and Environmental Sciences Nanjing Agricultural UniversityNanjing 210095China

Wheat-maize(WM)and wheat-soybean(WS)double-cropping rotation systems are predominant in the North china Plain,with implications for national agricultural output and *** rotation systems exert legacy effects on soil health and crop productivity,the role of crop rotation in shaping the root-associated microbiome of the succeeding crops has emerged as a pivotal aspect of crop management ***,the effects of the preceding two cycles of WM and WS rotations on the recruitment and filtering of wheat root-associated bacterial communities across wheat developmental stages were *** results revealed that bacterial community diversity and composition were primarily influenced by compartment and developmental stage,while the preceding rotation systems had a slight but significant effect on wheat root-associated bacterial *** co-occurrence networks under WM were more complex in the wheat rhizosphere and rhizoplane,with the operational taxonomic units(OTUs)related to cellulolysis showing greater *** co-occurrence networks under WS were simple but stable in the rhizosphere and complex in the rhizoplane and endosphere,with the OTUs related to ureolysis and nitrogen fixation showing greater *** both stochastic and deterministic processes contributed to the assembly of wheat root-associated bacterial communities,the contributions of deterministic processes under WS were 19.4-38.5%higher than those under the WM rotation across the root-associated compartments,indicating the substantial impact of a soybean legacy effect on wheat root selection of *** growthpromoting rhizobacteria with the potential to fix nitrogen,produce indole-3-acetic acid,and inhibit diseases such as Betaproteobacteriales,Azospirillales and Dyella sp.,were identified within the OTUs that were consistently enriched across all the wheat root-associated compartments and developmental stages,which were also important predictors of whea

关键词： crop rotation root-associated bacterial community co-occurrence network assembly process wheat yield

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Degradation of oxytetracycline in soil by a Pseudomonas strain

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Journal of Integrative Agriculture 2025年第5期24卷 2002-2014页

作者： Xueqi Guo Weining Qi Yao Feng Zhaojun Li State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province Guizhou Normal University

Oxytetracycline（OTC） is used extensively in animal husbandry and enters the soil in different forms, causing severe environmental pollution. Previous studies have shown that the genus Pseudomonas can potentially degrade antibiotics in the soil environment. Environmental conditions, such as the initial concentration of antibiotics, incubation temperature and others, have significant impacts on the activity of antibiotic-degrading bacteria. However, few reports have clarified the environmental impacts on the effectiveness of Pseudomonas spp. In the present study, we investigated the effects of different initial concentrations of OTC and incubation temperatures, as well as soil sterilization, on OTC degradation by Pseudomonas strain T4. We also focused on the microbial degradation pathways of OTC, and variations in both antibiotic resistance genes（ARGs） and microbial communities with T4 functioning under optimal conditions. The results showed that the most effective degradation occurred under an initial OTC concentration of 2.5 mg kg–1at 30°C in unsterilized soil spiked with T4. These conditions yielded an OTC degradation rate of 69.53% within 63 days. The putative degradation pathways of OTC in the presence of T4 included dehydration, demethylation, deamination, hydroxylation, oxidation and ring opening. Bacteroidetes, Proteobacteria and Acidobacteria played key roles in the biodegradation of OTC with T4 in the soil. The results also showed that tet（G） was the most frequently detected ARGs among the 13 common tetracycline ARGs that were investigated. The bacterial community shift observed in this study may provide new insights into the microbial degradation of OTC in soil.

关键词： oxytetracycline ARGs Pseudomonas biodegradation soil

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Identification of new salicylic acid signaling regulators for root development and microbiota composition in plants

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Journal of Integrative Plant Biology 2025年第2期67卷 345-354页

作者： Xianqing Jia Zhuang Xu Lei Xu Juan P.Frene Mathieu Gonin Long Wang Jiahong Yu Gabriel Castrillo Keke Yi Key Laboratory of Resource Biology and Biotechnology Western China Ministry of EducationProvincial Key Laboratory of Biotechnology of Shaanxi ProvinceCollege of Life SciencesNorthwest UniversityXi'an 710069China State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China School of Biosciences University of NottinghamSutton Bonington LE125RDUK

Besides playing a crucial role in plant immunity via the nonexpressor of pathogenesis-related(NPR)proteins,increasing evidence shows that salicylic acid(SA)can also regulate plant root ***,the transcriptional regulatory network controlling this SA response in plant roots is still ***,we found that NPR1 and WRKY45,the central regulators of SA response in rice leaves,control only a reduced sector of the root SA signaling *** demonstrated that SA attenuates root growth via a novel NPR1/WRKY45-independent ***,using regulatory network analysis and mutant characterization,we identified a set of new NPR1/WRKY45-independent regulators that conservedly modulate the root development and root-associated microbiota composition in both Oryza sativa(monocot)and Arabidopsis thaliana(dicot)in response to *** results established the SA signaling as a central element regulating plant root functions under ecologically relevant *** results provide new insights to understand how regulatory networks control plant responses to abiotic and biotic stresses.

关键词： gene regulatory network microbiota colonization root growth ROS salicylic acid

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Novel method for selecting the regions of interest in hyperspectral images of apples with random poses on the sorting line

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International Journal of Agricultural and Biological Engineering 2025年第1期18卷 199-207页

作者： Kangkang Qi Wenbin Wu Shuai Wang Yuanjie Mu Qian Song Fengyun Wang Yangyang Fan Wenjie Feng Rui Li Longsheng Fu Agricultural Information and Economy Institution Shandong Academy of Agricultural SciencesJinan 250100China State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China College of Mechanical and Electronic Engineering Northwest A&F UniversityYangling 712100ShaanxiChina

Recent approaches to the internal quality inspection of apples with the application of hyperspectral imaging technology are highly cost-intensive because of labor involvement for the data collection on a fixed posture and manual selection of the region of interest(RoI).In addition,several studies have repeated the data acquisition for the same *** methods cannot meet the automation requirements of the sorting ***,this study proposed a novel method for automatically selecting RoI in hyperspectral images of apples with random ***,the preliminary RoI selection of apple hyperspectral image was carried out,followed by the performance of histogram statistics of each pixel with spectral intensity at 700 nm *** top 40%area of the spectral intensity was reserved to obtain the magnitude relationship of the spectral intensity of each pixel point and a morphological erosion *** apple RoI was acquired and overexposed pixels were removed with spectral intensity greater than 3900(maximum 4095)in the reserved area at 700 ***,the relationship between apple size and prediction accuracy was measured for the in-depth RoI analysis.A partial least square regression(PLSR)model was established between the average spectrum and apple sugar content of RoI with different ***,the established model with the top 70%of the spectral intensity achieved the best prediction ***-destructive estimation of apple sugar content was performed through hyperspectral imaging technology with reference to the proposed RoI selection method.A competitive adaptive reweighted sampling algorithm along the PLSR(CARS-PLSR)model was established after black-and-white correction and standard normal transformation(SNV)preprocessing and obtained the highest prediction *** determination coefficient of cross-validation(R_(cv))and root mean square error of cross-validation(RMSECV)were 0.9595 and 0.3203°Brix,*** determinati

关键词： apple hyperspectral imaging nondestructive detection region of interest sugar content

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Vacuolar phosphate efflux transporter ZmVPEs mediate phosphate homeostasis and remobilization in maize leaves

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Journal of Integrative Plant Biology 2025年第2期67卷 311-326页

作者： Zhenhui Guo Chaonan Zhang Hongyu Zhao Yu Liu Xiyao Chen Hanshu Zhao Limei Chen Wenyuan Ruan Yifang Chen Lixing Yuan Keke Yi Lei Xu Jingbo Zhang State Key Laboratory of Nutrient Use and Management College of Resources and Environmental SciencesNational Academy of Agriculture Green DevelopmentChina Agricultural UniversityBeijing 100193China Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China College of Life Sciences Zhejiang UniversityHangzhou 310058China State Key Laboratory of Plant Environmental Resilience College of Biological SciencesCenter for Crop Functional Genomics and Molecular BreedingChina Agricultural UniversityBeijing 100193China State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China

Phosphorus(P)is an essential macronutrient for plant growth and *** play a crucial role in inorganic phosphate(Pi)storage and remobilization in ***,the physiological function of vacuolar phosphate efflux transporters in plant Pi remobilization remains ***,we identified three Zm VPE genes(ZmVPE1,ZmVPE2a,ZmVPE2b)by combining them with transcriptome and quantitative real-time polymerase chain reaction(PCR)analyses,showing a relatively higher expression in older leaves than in younger leaves in ***,the expression of the ZmVPEs was triggered by Pi deficiency and abscisic *** were localized to the vacuolar membrane and responsible for vacuolar Pi *** with the wild-type,Pi remobilization from older to younger leaves was enhanced in Zm VPE-overexpression ***2a mutants displayed an increase in the total P and Pi concentrations in older leaves,but a decrease in younger *** rice,Pi remobilization was impaired in the osvpe1osvpe2 double mutant and enhanced in OsVPE-overexpression plants,suggesting conserved functions of VPEs in modulating Pi homeostasis and remobilization in crop *** together,our findings revealed a novel mechanism underlying Pi remobilization from older to younger leaves mediated by plant vacuolar Pi efflux transporters,facilitating the development of Pi-efficient crop plants.

关键词： leaves maize phosphate remobilization vacuolar phosphate efflux ZmVPEs

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Joint optimization of AI large and small models for surface temperature and emissivity retrieval using knowledge distillation

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Artificial Intelligence in Agriculture 2025年第3期15卷 407-425页

作者： Dai, Wang Mao, Kebiao Guo, Zhonghua Qin, Zhihao Shi, Jiancheng Bateni, Sayed M. Xiao, Liurui School of Electrical and Electronic-Engineering Ningxia University Yinchuan750021 China State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing100081 China School of Geographic Science and Planning Nanning Normal University Nanning530001 China National Space Science Center Chinese Academy of Sciences Beijing100190 China Department of Civil and Environmental Engineering and Water Resources Research Center University of Hawaii at Manoa HonoluluHI96822 United States

The rapid advancement of artificial intelligence in domains such as natural language processing has catalyzed AI research across various fields. This study introduces a novel strategy, the AutoKeras-Knowledge Distillation (AK-KD), which integrates knowledge distillation technology for joint optimization of large and small models in the retrieval of surface temperature and emissivity using thermal infrared remote sensing. The approach addresses the challenges of limited accuracy in surface temperature retrieval by employing a high-performance large model developed through AutoKeras as the teacher model, which subsequently enhances a less accurate small model through knowledge distillation. The resultant student model is interactively integrated with the large model to further improve specificity and generalization capabilities. Theoretical derivations and practical applications validate that the AK-KD strategy significantly enhances the accuracy of temperature and emissivity retrieval. For instance, a large model trained with simulated ASTER data achieved a Pearson Correlation Coefficient (PCC) of 0.999 and a Mean Absolute Error (MAE) of 0.348 K in surface temperature retrieval. In practical applications, this model demonstrated a PCC of 0.967 and an MAE of 0.685 K. Although the large model exhibits high average accuracy, its precision in complex terrains is comparatively lower. To ameliorate this, the large model, serving as a teacher, enhances the small model's local accuracy. Specifically, in surface temperature retrieval, the small model's PCC improved from an average of 0.978 to 0.979, and the MAE decreased from 1.065 K to 0.724 K. In emissivity retrieval, the PCC rose from an average of 0.827 to 0.898, and the MAE reduced from 0.0076 to 0.0054. This research not only provides robust technological support for further development of thermal infrared remote sensing in temperature and emissivity retrieval but also offers important references and key technological i

关键词： Teaching

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Stimulatory effects of nutrient addition on microbial necromass C formation depend on soil stoichiometry

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Geoderma 2025年 458卷

作者： Chen, Yihui Liu, Shutang Huang, Yaping Xiao, Qiong Zhao, Xiaorong Wu, Lei Zhang, Wenju State Key Laboratory of Efficient Utilization of Arid and Semi-Arid Arable Land in Northern China Key Laboratory of Arable Land Quality Monitoring and Evaluation Ministry of Agriculture and Rural Affairs Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing100081 China College of Resources and Environment Qingdao Agriculture University Qingdao266109 China College of Land Science and Technology China Agricultural University Beijing100193 China

Nutrient availability strongly influences soil organic carbon (SOC) accumulation through microbial necromass C (MNC) formation. However, the effects of nutrient addition on regulating MNC formation in soils with distinct stoichiometric ratios are not well understood. Soil samples were collected from a long-term (>40 years) wheat-maize rotation field trial, without and with nutrient management, which exhibited high and low C:nutrient (N and P) ratios, respectively. These soils were incubated with 13C-labeled glucose (labile C) and nutrients (N and/or P) for 63 days. A greater proportion of labile C was converted into MNC, especially bacterial necromass C, in the low C:nutrient soil (averaging 32 %) than in the high C:nutrient soil (averaging 25 %). In the high C:nutrient soil, N and/or P addition significantly increased newly formed MNC (13C-MNC) by 8–33 %, whereas in the low C:nutrient soil, N and P addition had a marginal and negative effect on 13C-MNC, respectively. The 13C-MNC content was negatively correlated with resource stoichiometric ratios (dissolved organic C (DOC):mineral N, microbial C:N imbalance, and DOC:available P), and enzyme activities (β-1,4-glucosidase, leucine amino peptidase, N-acetyl-glucosaminidase, and alkaline phosphatase). These results suggest that the increase in MNC is primarily due to the alleviation of N and P limitations. Furthermore, the 13C-MNC content was positively correlated with the 13C-phospholipid fatty acids content, indicating that enhanced microbial anabolism, especially bacterial anabolism, promoted MNC formation. Collectively, our findings emphasize the critical role of soil stoichiometry in regulating microbial metabolism and MNC formation in response to nutrient addition. These insights have significant implications for optimizing nutrient management to enhance SOC sequestration in arable soil. © 2025 The Authors

关键词： Enzyme activity

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Maturity phase is crucial for removing antibiotic resistance genes during composting: novel insights into dissolved organic matter-microbial symbiosis system

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Bioresource Technology 2025年 431卷 132607页

作者： Bai, Bing Wang, Lixia Guan, Fachun Pi, Houan Wang, Anxun Zhai, Limei State Key Laboratory of Black Soils Conservation and Utilization Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun130102 China University of Chinese Academy of Sciences Beijing101408 China Jilin Academy of Agricultural Sciences Changchun130033 China Jilin University Changchun130015 China State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing100081 China

Composting is widely regarded as an effective method for reducing antibiotic resistance genes (ARGs) in livestock and poultry manure. However, the critical mechanisms of ARGs in different composting phase are still unclear. In this study, normal composting and two types of rapid composting (without mature phase) were used to analyze the removal of ARGs and the succession of dissolved organic matter (DOM). Compared to normal composting, rapid composting reactivated tetracyclines, sulfonamide, and quinolones resistance genes during the maturation phase and reduced the total ARGs removal rates by 45.58 %–57.87 %. Humus-like components could inhibit the proliferation of ARGs, and the enrichment of protein-like components increased abundances of Pusillimonas, Persicitalea, and Pseudomonas, indirectly reducing the removal. This study is the first to demonstrate the contribution of DOM and microbial community to ARGs removal, emphasizing the importance of the maturation phase for ARGs elimination. This research provides guidance for producing safe compost products. © 2025 Elsevier Ltd

关键词： Manures

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Microplastics alter microbial structure and assembly processes in different soil types: Driving effects of environmental factors

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Environmental Research 2025年 278卷

作者： Li, Qingjie Wang, Xiaoxing Zhang, Jiaqi Guo, Xueqi Li, Yanli Andom, Okbagaber Li, Zhaojun State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China China-New Zealand Joint Laboratory for Soil Molecular Ecology Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing100081 China College of Biological Sciences and Technology Yili Normal University Xinjiang Yili835000 China College of Life Sciences Hebei University Hebei Baoding071002 China

Microplastics (MPs) are emerging pollutants with potential impacts on soil ecosystems. However, it is unclear how MPs-induced changes in the soil environment drive microbial structure and assembly in different soils. Here we investigated the responses of microbial structure, enzyme activities and soil properties to biodegradable polylactic acid (PLA) and conventional polythene (PE) with different doses in different soil types. Results showed that PLA generally decreased soil NH4+-N and NO3−-N levels but increased dissolved organic carbon (DOC) and pH, whereas PE exhibited contrasting effects depending on soil type. MPs significantly stimulated soil urease, sucrase, catalase and phosphatase activities, with dose-dependent responses observed under PLA treatments in fluvo-aquic soil. Additionally, MPs altered microbial composition and colonized specific bacterial taxa in different soils. In microbial assemblies dominated by stochastic processes, MPs, especially PE promoted the deterministic processes. Co-occurrence patterns showed lower microbial complexity under PLA treatments compared to PE. Notably, we revealed soil-type-specific response patterns: DOC emerged as the primary driver in red soil ecosystems, while pH exerted dominant control in fluvo-aquic soil systems. Furthermore, perturbation of microbial communities by MPs affected functions related to metabolism. These findings highlight that MPs-induced shifts in microbial communities and assembly processes are soil-type-specific and mediated by soil characteristics changes, providing critical insights for assessing the ecological risks of MPs in diverse agricultural soils. © 2025 Elsevier Inc.

关键词： Abiotic

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Total aluminum reduced but aluminum hydroxide increased in red soil of southern china after long-term swine manure amendment

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Plant and Soil 2025年 1-19页

作者： Qiu, Haihua Wen, Shilin Zhang, Lu Xu, Minggang Cai, Zejiang State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081 China Qiyang FarmLand Ecosystem National Observation and Research Station Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Hunan Qiyang 426182 China Soil Health Laboratory of Shanxi Province Institute of ECO-Environment and Industrial Technology Shanxi Agricultural University Taiyuan 030031 China

Aims: Swine manure as an alternative amendment has proven to effectively alleviate red soil acidification, but the mechanisms are not fully understood. Methods: A 32-year field experiment was selected to investigate the effectiveness of swine manure amendment on red soil aluminum species, and their contribution to acidification and maize yields. The treatments included no fertilization (control), chemical nitrogen, phosphorus and potassium (NPK), NPK with straw return (NPKS), NPK combined with swine manure (NPKM), and swine manure only (M). Results: As compared to control, soil total aluminum (Alt) decreased by 10.12 and 21.15 g kg−1 under NPKM and M, respectively, while mineral aluminum (Almin) and iron oxide-bound aluminum (AlDCB) decreased by 5.36—20.12 g kg−1 and 674.77—772.98 mg kg−1 under NPKS, NPKM and M treatments. Aluminum hydroxide (Aloh) increased by 158.02 and 330.16 mg kg−1 under NPKM and M treatments, but decreased 101.00 mg kg−1 under NPK treatment. Exchangeable aluminum (Alex) increased by 702.71 and 624.95 mg kg−1 under NPK and NPKS treatments, respectively. The correlation analysis showed that maize yields were positively affected by soil pH and Aloh, but negatively correlated with Alex (p < 0.01). Furthermore, Alex was negatively correlated with soil pH, exchangeable calcium (***2+) and Aloh. The Aloh was positively correlated with soil pH, ***2+, soil organic matter fractions, dissolved organic matter component 1 and component 2. Conclusions: This research indicates that long-term swine manure amendment reduced total aluminum but increased aluminum hydroxide in surface soil, which played an important role in preventing red soil acidification and sustaining maize yields. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2025.

关键词： Aluminum pool Long-term fertilization Maize yields Organic matter Swine manure amendment

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