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Regulation of the phytotoxic response of Arabidopsis thaliana to the Fusarium mycotoxin deoxynivalenol

Journal of Integrative Agriculture 2020年第3期19卷 759-767页

作者： WANG Yan YAN Hao WANG Qi ZHENG Ran XIA Kai LIU Yang Department of Food Science and Technology Zhejiang University of TechnologyHangzhou 310014P.R.China Zhejiang Provincial Center for Disease Control and Prevention Hangzhou 310051P.R.China Institute of Food Science and Technology Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport ProcessMinistry of Agriculture and Rural AffairsBeijing 100193P.R.China Beijing Key Laboratory of the Innovative Development of Functional Staple and the Nutritional Intervention for Chronic Disease China National Research Institute of Food and Fermentation Industries Co.Ltd.Beijing 100015P.R.China

Phytopathogenic fungi,such as Fusarium spp.,synthesize trichothecene family *** type B trichothecene,namely deoxynivalenol(DON),is highly prevalent in small-grain cereals,such as wheat,corn and *** is thought to be a virulence factor allowing plant infections and has an elicitor *** used the model plant Arabidopsis thaliana to evaluate the phytotoxic effects of DON in host *** growth of *** on media was significantly inhibited by ***,DON induced cell death in detached leaves was observed by trypan blue *** is consistent with the phenomenon of organelle changes observed at the ultrastructural *** our study,DON exposure stimulated oxidative bursts in the leaves,resulting in the concomitant down-regulation of antioxidant enzyme defense responses and up-regulation of lipid *** addition,a real-time PCR analysis revealed that the DON treatment rapidly induced the transcription of defense genes,like AtrbohC and AtrbohD,and up-regulated the transcriptional level of the ascorbic acid peroxidase *** results suggested that DON phytotoxicity might result from reactive oxygen species pathways,and that DON production by the plant pathogen Fusarium graminearum can act as an elicitor influencing plant cell fate.

关键词： deoxynivalenol Arabidopsis thaliana cell death oxidative stress

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Residue behaviors and dietary risk assessment of dinotefuran and its metabolites in Lycium barbarum from farm to fork

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Food Science and Human Wellness 2024年

作者： Ouli Xiao Minmin Li Jieyin Chen Ran Wang Xiaofeng Dai Zhiqiang Kong State Key Laboratory for Biology of Plant Diseases and Insect Pests， Institute of Plant Protection， Chinese Academy of Agricultural Sciences Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process， Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology， Chinese Academy of Agricultural Sciences Western Agricultural Research Center， Chinese Academy of Agricultural Sciences Institute of Plant Protection， Beijing Academy of Agriculture and Forestry Sciences

Lycium barbarum， known as wolfberry or goji berry， is consumed by humans as a medicine and a food homology product. Conventionally grown wolfberry is often treated extensively with pesticides， which could pose a hazard to humans. Here， the degradation dynamics of dinotefuran and its two metabolites (UF and DN)， during wolfberry cultivation and processing was investigated. The half-life (T1/2) of dinotefuran was 11.36 d and 9.12 d， respectively， under the recommended dosage and double the recommended dosage. During the oven and sun drying processes， processing factors (PFs) of dinotefuran were 1.07 - 1.34， implying the enrichment of pesticide residues. Decoction process made the removal rate of dinotefuran reach 87.48%， which is higher than that of the brewing process (14.7%)， while dinotefuran remained in the wine with high ethanol content in the alcohol soaking process. The hazard quotient (HQ) of dinotefuran， as determined via dietary risk assessment combined with PFs， was < 1， indicating an acceptable risk for human consumption. Bioaccessibility of dinotefuran in the three digestive stages were intestinal (18.20% - 88.08%) > gastric (5.45% - 86.72%) > oral (23.18%) via in vitro simulated digestive system. These findings provide scientific evidence for reasonable application and risk assessment of dinotefuran residues in wolfberry.

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Effect of Aliphatic Aldehydes on the Meat-Like Cysteine-Glucose Reaction: Comparison and Formation Mechanism of Volatile Compounds

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SSRN 2022年

作者： Du, Wenbin Wang, Yutang Huang, Yatao Li, Long Mu, Yuwen Fan, Bei Wang, Fengzhong Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process Ministry of Agriculture and Rural Affairs Institute of Food Science and Technology Chinese Academy of Agricultural Sciences Beijing100193 China

To understand the effect of the number and position of unsaturated bonds in aliphatic aldehydes influence with Maillard reaction, nonanal, (E)-2-nonenal, (E,E)-2,4-nondienal and (E,E)-2,6-nondienal with "cysteine and glucose" were heated, identified by GC-MS and GC-MS-O, and a total of 88 volatile compounds derived from Maillard reaction or interaction of Maillard reaction with aliphatic aldehydes were detected, sulfur-containing compounds were inhibited in the aliphatic aldehydes system, but new compounds were formed, such as 2-pentylthiophene. Statistical analysis demonstrated significant differences in the volatile compounds among different systems. The carbohydrate module labeling approach demonstrated formation pathways of 34 volatile compounds derived from Maillard reaction with aliphatic aldehydes systems were proposed, 2-propylfuran, (E)-2-(2-pentenyl)furan resulting from the aliphatic aldehydes. 5-Butyldihydro-2(3H)-furanone, and 2-methylthiophene have resulted from the Maillard reaction. 2-Furanmethanol, 2-thiophenecarboxaldehyde, and 5-methyl-2-thiophenecarboxaldehyde resulted from aliphatic aldehydes-Maillard reaction interactions. Notably, adding aliphatic aldehydes changging the formation pathway of 2-propylthiophene, thieno[3,2-b]thiophene, 2,5-thiophenedicarboxaldehyde in different aliphatic aldehydes system. © 2022, The Authors. All rights reserved.

关键词： Glycosylation

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Identification of a Novel Bacillus Velezensis Is-6 Nudix Hydrolase Nh-9 Involved in Ochratoxin a Detoxification by Transcriptomic Profiling and Functional Verification

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SSRN 2023年

作者： Jahan, Israt Tai, Bowen Xing, Fuguo Hussain, Sarfaraz Du, Haolan Wang, Gang Adegoke, Tosin Victor Ma, Longxue Institute of Food Science and Technology Chinese Academy of Agricultural Sciences Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process Ministry of Agriculture and Rural Affairs Beijing100193 China

An isolate Bacillus velezensis IS-6 displaying high OTA degradation activity was obtained. Its culture supernatant could degrade 1.5 µg/mL OTA by 89% when incubated at 37 °C for 24 h. The degradation activity was dramatically reduced by proteinase K, proteinase K plus SDS, and heat treatment, suggesting the degradation of OTA by IS-6 was an enzymatic process. The culture supernatant exhibited the highest degradation activity at 37 °C and pH 7.0 with ions Fe2+ and Cu2+ as enhancers. A degradation product OTα was observed using LC/TOF-MS analysis, suggesting OTA was degraded to lower toxic metabolites. The comparative transcriptome analysis of IS-6 showed 38 differentially expressed genes were significantly up-regulated after treatment with OTA. From the up-regulated genes, a novel OTA degradation enzyme Nudix hydrolase Nh-9 was successfully cloned and characterized. The recombinant protein was overexpressed in E. coli BL21, then was purified by affinity chromatography. The purified Nh-9 could degrade 1.0 µg/mL OTA by 68% at 37 °C in 24 h. According to the findings, the Nh-9 is the major OTA degrading enzyme in B. velezensis IS-6. Furthermore, OTA may be co-degraded by Nh-9, carboxylesterase, signal peptidase and other degrading agents that has yet to be discovered in this strain. © 2023, The Authors. All rights reserved.

关键词： Metabolites

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Insights into the Characteristic of Edible quality And Electronic Sense Of Meat from Six Chinese Native Goat Breeds

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SSRN 2024年

作者： Li, Shaobo Zhang, Dequan Wang, Zhenyu Hou, Chengli Li, Cheng Zheng, Xiaochun Chen, Li Institute of Food Science and Technology Chinese Academy of Agriculture Sciences Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process Ministry of Agriculture and Rural Affairs Beijing100193 China

To understand the goat meat quality characteristics, M. longissimus thoracis et lumborum (LTL) muscle of six Chinese native goat breeds were used for analyzing processing quality, edible quality, and electronic sense of meat. Results suggested that the mean content of essential amino acids (EAAs) of meat from six goat breeds was 7.81 g/100 g meat, and Lys was the main EAAs in goat meat. There were significant differences in the type and content of volatile flavor compounds in meat from different goat breeds. And 1-octen-3-ol, hexanal, octanal, nonanal, and 2,4-decadienal were considered key compounds in goat meat. Partial least-squares discrimination analysis (PLS-DA) results indicated that there were 12 meat quality index with VIP values greater than 1, such as PKS, CPS, hexanal, and 2,4-decadienal, et al.. In conclusion, there were significant difference in the quality of meat from the six goat breeds, especially in the taste and flavor of meat. © 2024, The Authors. All rights reserved.

关键词： Meats

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Aba Treatment Prolong the Postharvst Life of Strawberries by Regulating the Metabolism of Sucrose and Cell Wall

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SSRN 2023年

作者： Tang, Jixing Zhao, Yaoyao Lin, Qiong Duan, Yuquan Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process Ministry of Agriculture and Rural Affairs Institute of Food Science and Technology Chinese Academy of Agricultural Sciences Beijing100193 China

Postharvest strawberries (Fragaria × ananassa, Duch.) are susceptible to senescence and decay. Our research demonstrated that pre-storage application with abscisic acid (ABA) can improve the commercial quality and prolong the postharvest shelf-life of strawberries. In this study, we found that strawberries treatment with 100 μmol L-1 ABA before storage at 4 ℃ can maintained firmness and reduced the decay rate. ABA caused total soluble sugars accumulation mainly attributed to the increase in sucrose and glucose content to some extent. The gene expression related to sugar metabolism was significantly regulated by ABA. ABA treatment also inhibited the gene expression related to cell wall metabolism. The results show that ABA extend the postharvest life of strawberries by two potential strategies, including an accumulated content of total soluble sugars and inhibited cell wall decomposition. © 2023, The Authors. All rights reserved.

关键词： Metabolism

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Genomic and metabolomic insights into the selection and differentiation of bioactive compounds in citrus

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Molecular Plant 2024年第11期17卷 1753-1772页

作者： Xiao Liang Yue Wang Wanxia Shen Bin Liao Xiaojuan Liu Zimeng Yang Jiebiao Chen Chenning Zhao Zhenkun Liao Jinping Cao Ping Wang Peng Wang Fuzhi Ke Jianguo Xu Qiong Lin Wanpeng Xi Lishu Wang Juan Xu Xiaochun Zhao Chongde Sun Plant Growth Development and Quality ImprovementZhejiang Provincial Key Laboratory of Integrative Biology of Horticultural PlantsZhejiang UniversityHangzhouChina Citrus Research Institute Southwest University/Chinese Academy of Agricultural SciencesChongqingChina Hainan Institute of Zhejiang University SanyaChina Zhejiang Citrus Research Institute TaizhouChina Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process Ministry of Agriculture and Rural Affairs/Institute of Food Science and TechnologyChinese Academy of Agricultural SciencesBeijingChina College of Horticulture and Landscape Architecture Southwest UniversityChongqingChina Department of Hematology and Hematopoietic Cell Transplantation Comprehensive Cancer CenterCity of Hope National Medical CenterDuarteCAUSA Key Laboratory of Horticultural Plant Biology(Ministry of Education) Huazhong Agricultural UniversityWuhanChina

Bioactive compounds play an increasingly prominent role in breeding functional and nutritive fruit crops such as ***,the genomic and metabolic bases for the selection and differentiation underlying bioactive compound variations in citrus remain poorly *** this study,we constructed a species-level variation atlas of genomes and metabolomes using 299 citrus accessions.A total of 19829 significant SNPs were targeted to 653 annotated metabolites,among which multiple significant signals were identified for secondary metabolites,especially *** differential accumulation of bioactive compounds in the phenylpropane pathway,mainly flavonoids and coumarins,was unveiled across ancestral citrus species during differentiation,which is likely associated with the divergent haplotype distribution and/or expression profiles of relevant genes,including p-coumaroyl coenzyme A 2′-hydroxylases,flavone synthases,cytochrome P450 enzymes,prenyltransferases,and uridine diphosphate ***,we systematically evaluated the beneficial bioactivities such as the antioxidant and anticancer capacities of 219 citrus varieties,and identified robust associations between distinct bioactivities and specific ***,these findings provide citrus breeding options for enrichment of beneficial flavonoids and avoidance of potential risk of *** study will accelerate the application of genomic and metabolic engineering strategies in developing modern healthy citrus cultivars.

关键词： citrus metabolome genome-wide association study bioactive compounds

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A Potential Biocontrol Agent Streptomycetes Sp. B4 for Managing Cabbage Fusarium Wilt and Cucumber Alternaria Leaf Blight

SSRN

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SSRN 2024年

作者： Li, Yuxin Wang, Gang Rao, Tianxi Chen, Ying Tan, Xiangyu Li, Erfeng Horticulture and Landscape College Tianjin Agricultural University Tianjin300392 China Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process Ministry of Agriculture and Rural Affairs Institute of Food Science and Technology Chinese Academy of Agricultural Sciences Beijing100193 China

Cabbage Fusarium wilt and cucumber Alternaria leaf blight are two widespread diseases caused by Fusarium oxysporum and Alternaria cucumerina that severely affects cabbage and cucumber output across the world. However, very few biocontrol actinomycete resources have been identified for these two diseases. An antagonistic actinomycete B4 was isolated and identified as Streptomyces luteoverticillatus. It is effective against a wide range of plant pathogens. The purpose of this study was to look into the inhibitory impact of S. luteoverticillatus B4 on F. oxysporum and A. cucumerina, as well as to create the theoretical groundwork and research technologies for the use of B4 as a biopesticide. It was found that B4 has the ability to detoxify organic phosphorus, and produce siderophores, IAA and glucoamylase. In the greenhouse pot test, B4 had an effectiveness of 56% against F. oxysporum and 76% against A. cucumerina. Further investigation into the inhibitory mechanism indicated that once the B4 fermentation broth operated on the two pathogens, their mycelial morphology was altered, and mycelial growth was suppressed, particularly for F. oxysporum. B4 could create volatile organic compounds that may have an inhibiting impact. In addition, B4 fermentation broth dramatically increased seed germination and seedling development in both cabbage and cucumber. S. luteoverticillatus B4 is a possible biocontrol agent that inhibits F. oxysporum and A. cucumerina while also encouraging cabbage and cucumber development. © 2024, The Authors. All rights reserved.

关键词： Disease control

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A Potential Biocontrol Agent Streptomyces Luteoverticillatus B4 for Managing Cabbage Fusarium Wilt and Cucumber Alternaria Leaf Blight

SSRN

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SSRN 2024年

关键词： Disease control

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The Role of Surface Termination in Halide Perovskites for Efficient Photocatalytic Synthesis

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Angewandte Chemie 2020年第31期132卷 13031-13037页

作者： Dong Y. Li K. Luo W. Zhu C. Guan H. Wang H. Wang L. Deng K. Zhou H. Xie H. Bai Y. Li Y. Chen Q. Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 China Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology Chinese Academy of Agricultural Sciences Beijing 100193 China Department of Materials Science and Engineering College of Engineering Peking University Beijing 100871 China School of Physics and Electronics Central South University Changsha Hunan 410083 China

Halide perovskites have received attention in the field of photocatalysis owing to their excellent optoelectronic properties. However, the semiconductor properties of halide perovskite surfaces and the influence on photocatalytic performance have not been systematically clarified. Now, the conversion of triose (such as 1,3-dihydroxyacetone (DHA)) is employed as a model reaction to explore the surface termination of MAPbI3. By rational design of the surface termination for MAPbI3, the production rate of butyl lactate is substantially improved to 7719 μg g−1 cat. h−1 under visible-light illumination. The MAI-terminated MAPbI3 surface governs the photocatalytic performance. Specially, MAI-terminated surface is susceptible to iodide oxidation, which thus promotes the exposure of PbII as active sites for this photocatalysis process. Moreover, MAI-termination induces a p-doping effect near the surface for MAPbI3, which facilitates carrier transport and thus photosynthesis. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

关键词： halide perovskite iodide vacancies photocatalysis surface termination triose

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