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dynamic regulation of the irrigation-nitrogen-biochar nexus for the synergy of yield,quality,carbon emission and resource use efficiency in tomato

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Journal of Integrative Agriculture 2024年第2期23卷 680-697页

作者： Ping’an Zhang Mo Li Qiang Fu Vijay PSingh Changzheng Du Dong Liu Tianxiao Li Aizheng Yang School of Water Conservancy&Civil Engineering Northeast Agricultural UniversityHarbin 150030China Key Laboratory of Effective Utilization of Agricultural Water Resources Ministry of Agriculture and Rural Affairs/Northeast Agricultural UniversityHarbin 150030China Department of Biological and Agricultural Engineering&Zachry Department of Civil&Environmental Engineering Texas A&M UniversityTX 77843-117USA National Water and Energy Center UAE UniversityAI Ain999041United Arab Emirates Heilongjiang Agricultural Engineering Vocational College Harbin 150030China

Integrated water and fertilizer management is important for promoting sustainable development of facility agriculture,and biochar plays an important role in guaranteeing food production,as well as alleviating water shortages and the overuse of *** field experiment had twelve treatments and a control(CK)trial including two irrigation amounts(I1,100%ETm;I2,60%ETm;where ETm is the maximum evapotranspiration),two nitrogen applications(N1,360 kg ha^(−1);N2,120 kg ha^(−1))and three biochar application levels(B1,60 t ha^(−1);B_(2),30 t ha^(−1)and B3,0 t ha^(−1)).A multi-objective synergistic irrigation-nitrogen-biochar application system for improving tomato yield,quality,water and nitrogen use efficiency,and greenhouse emissions was developed by integrating the techniques of experimentation and ***,a coupled irrigation-nitrogen-biochar plot experiment was ***,tomato yield and fruit quality parameters were determined experimentally to establish the response relationships between irrigation-nitrogen-biochar dosage and yield,comprehensive quality of tomatoes(TCQ),irrigation water use efficiency(IWUE),partial factor productivity of nitrogen(PFPN),and net greenhouse gas emissions(NGE).Finally,a multi-objective dynamic optimization regulation model of irrigation-nitrogen-biochar resource allocation at different growth stages of tomato was constructed which was solved by the fuzzy programming *** results showed that the application of irrigation and nitrogen to biochar promoted increase in yield,IWUE and PFPN,while it had an inhibitory effect on *** addition,the optimal allocation amounts of water and fertilizer were different under different *** yield of the S1 scenario increased by 8.31%compared to the B_(1)I_(1)N_(2) treatment;TCQ of the S2 scenario increased by 5.14%compared to the B_(2)I_(2)N_(1) treatment;IWUE of the S3 scenario increased by 10.01%compared to the B1I2N2 treatment;PFPN of the S4 scenario increased by

关键词： irrigation-nitrogen-biochar dynamic regulation multi-dimensional target collaboration tomato sustainability

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A CRISPRi mediated self-inducible system for dynamic regulation of TCA cycle and improvement of itaconic acid production in Escherichia coli

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Synthetic and Systems Biotechnology 2022年第3期7卷 982-988页

作者： Ming Zhao Yuting Li Fengqing Wang Yuhong Ren Dongzhi Wei State Key Lab of Bioreactor Engineering Newworld Institute of BiotechnologyEast China University of Science and TechnologyShanghai200237China Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding College of Biology and Food EngineeringAnhui Polytechnic UniversityWuhu241000China

Itaconic acid(ITA),an effective alternative fossil fuel,derives from the bypass pathway of the tricarboxylic acid(TCA)***,the imbalance of metabolic flux between TCA cycle and ITA biosynthetic pathway seriously limits the production of *** optimization of flux distribution between biomass and production has the potential to the productivity of *** on the previously constructed strain Escherichia coli MG1655Δ1-SAS-3(ITA titer:1.87 g/L),a CRISPRi-mediated self-inducible system(CiMS),which contained a responsive module based on the ITA biosensor YpItcR/Pccl and a regulative CRISPRi-mediated interferential module,was developed to regulate the flux of the TCA cycle and to enhance the capacity of the strain to produce ***,a higher ITA-yielding strain,Δ4-Prmd-SAS-3(ITA titer:3.20 g/L),derived fromΔ1-SAS-3,was constructed by replacing the promoter PJ23100,for the expression of ITA synthesis genes,with Prmd and knocking out the three bypass genes poxB,pflB,and ***,the CiMS was used to inhibit the expression of key genes icd,pykA,and sucCD to dynamically balance the metabolic flux between TCA cycle and ITA biosynthetic pathway during the ITA production *** constructed strainΔ4-Prmd-SAS-3 under the dynamic regulation of the CiMS,showed a 23%increase in the ITA titer,which reached 3.93 g/*** study indicated that CiMS was a practical strategy to dynamically and precisely regulated the metabolic flux in microbial cell factories.

关键词： CRISPRi dynamic regulation Itaconic acid Biosensor

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dynamic regulation of innate lymphoid cells in the mucosal immune system

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Cellular & Molecular Immunology 2021年第6期18卷 1387-1394页

作者： Fei Shao Dou Yu Pengyan Xia Shuo Wang CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina Division of Life Sciences of Medicine University of Science and Technology of ChinaHefeiChina Department of Immunology School of Basic Medical SciencesNHC Key Laboratory of Medical ImmunologyPeking UniversityBeijingChina

The mucosal immune system is considered a local immune system,a term that implies regional *** tissues are continually exposed to a wide range of *** regulation of mucosal immune cells is tightly associated with the progression of mucosal *** lymphoid cells(ILCs)are abundant in mucosal barriers and serve as first-line defenses against *** subtype changes and translocation of ILCs are accompanied by the pathologic processes of mucosal ***,we review the plasticity and circulation of ILCs in the mucosal immune system under physiological and pathological *** also discuss the signaling pathways involved in dynamic ILC changes and the related targets in mucosal diseases.

关键词： ILCs transdifferentiation translocation dynamic regulation mucosal immune system

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dynamic regulation of DELLA Protein Activity： SPINDLY and SECRET AGENT Unmasked!

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Molecular Plant 2017年第6期10卷 785-787页

作者： Lucie Camut Jean-Michel Daviere Patrick Achard Institut de biologie moleculaire des plantes CNRS Universite de Strasbourg 12 rue du General Zimmer 67084 Strasbourg Cedex France

Plants are sessile organisms that integrate growth responses to multiple endogenous and environmental signals. The DELLA family of transcription regulators, first identified as key repressors of gibberellin （GA） signaling, have emerged as a central node of integration, thus providing a mechanism for environmentally responsive growth regulation （Oh et al., 2014）.

关键词： dynamic regulation DELLA Protein Activity SECRET AGENT Unmasked

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Improving succinate production by engineering oxygen‑dependent dynamic pathway regulation in Escherichia coli

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Systems Microbiology and Biomanufacturing 2022年第2期2卷 331-344页

作者： Cong Gao Wenxiu Tang Liang Guo Guipeng Hu Jia Liu Liming Liu Xiulai Chen State Key Laboratory of Food Science and Technology Jiangnan University1800 Lihu RoadWuxi 214122China International Joint Laboratory on Food Safety Jiangnan UniversityWuxi 214122China School of Pharmaceutical Science Jiangnan UniversityWuxi 214122China

Succinate is an important building block for chemical ***,during the fermentation process,excessive osmotic stress and byproduct accumulation substantively impair the performance of the microbial cell *** this end,two strategies were ***,an osmo-tolerant mutant,Escherichia coli FMME-N-2,was screened by combined mutagenesis(ARTP and^(60)Co-γirradiation)to produce 51.8 g L^(−1)succinate with a productivity of 0.81 g L^(−1)h^(−1).Second,an oxygen-dependent bifunctional switch(OBS)was developed with promoter PfnrF8-based activation and tobacco etch virus protease-based inhibition *** ribosomal binding site(RBS)and degron optimization of OBS,the optimal strain *** FMME-N-30 achieved a succinate titer and productivity of 119 g L^(−1)and 1.65 g L^(−1) h^(−1),respectively,in a 30-L fermentor,while only 7.1 g L^(−1)acetate and no formate or lactate were *** to the wild-type strain *** FMME-N,the succinate titer was increased by *** results highlight the applicability of OBS for the large-scale production of value-added chemicals.

关键词： dynamic regulation Oxygen-dependent switch Succinate Protease Escherichia coli

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Time series canopy phenotyping enables the identification of genetic variants controlling dynamic phenotypes in soybean

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Journal of Integrative Plant Biology 2023年第1期65卷 117-132页

作者： Delin Li Dong Bai Yu Tian Ying-Hui Li Chaosen Zhao Qi Wang Shiyu Guo Yongzhe Gu Xiaoyan Luan Ruizhen Wang Jinliang Yang Malcolm J.Hawkesford James C.Schnable Xiuliang Jin Li-Juan Qiu The National Key Facility for Crop Gene Resources and Genetic Improvement(NFCRI)/Key Laboratory of Crop Gene Resource and Germplasm Enhancement(MOA)/Key Laboratory of Soybean Biology(Beijing)(MOA) Institute of Crop Science Chinese Academy of Agricultural SciencesBeijing 100081 China Crops Research Institute of Jiangxi Academy of Agricultural Sciences Nanchang 330200 China College of Agriculture Northeast Agricultural University Harbin 150030 China Soybean Research Institute Heilongjiang Academy of Agricultural Sciences Harbin 150086 China Department of Agronomy and Horticulture University of Nebraska-Lincoln Lincoln Nebraska 68583 USA Plant Sciences Department Rothamsted ResearchWest CommonHarpendenHertfordshire AL52JQ UK

Advances in plant phenotyping technologies are dramatically reducing the marginal costs of collecting multiple phenotypic measurements across several time ***,most current approaches and best statistical practices implemented to link genetic and phenotypic variation in plants have been developed in an era of single-time-point ***,we used time-series phenotypic data collected with an unmanned aircraft system for a large panel of soybean(Glycine max(L.)Merr.)varieties to identify previously uncharacterized ***,we focused on the dissection of canopy coverage(CC)variation from this rich data *** also inferred the speed of canopy closure,an additional dimension of CC,from the time-series data,as it may represent an important trait for weed ***-wide association studies(GWASs)identified 35 loci exhibiting dynamic associations with CC across developmental *** time-series data enabled the identification of 10 known flowering time and plant height quantitative trait loci(QTLs)detected in previous studies of adult plants and the identification of novel QTLs influencing *** novel QTLs were disproportionately likely to act earlier in development,which may explain why they were missed in previous single-time-point ***,this time-series data set contributed to the high accuracy of the GWASs,which we evaluated by permutation tests,as evidenced by the repeated identification of loci across multiple time *** novel loci showed evidence of adaptive selection during domestication,with different genotypes/haplotypes favored in different geographic *** summary,the time-series data,with soybean CC as an example,improved the accuracy and statistical power to dissect the genetic basis of traits and offered a promising opportunity for crop breeding with quantitative growth curves.

关键词： canopy coverage dynamic regulation GWAS soybean time series unmanned aircraft system

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Recent advances in microbial production of phenolic compounds

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Chinese Journal of Chemical Engineering 2021年第2期34卷 54-61页

作者： Xinxiao Sun Xianglai Li Xiaolin Shen Jia Wang Qipeng Yuan State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing 100029China

Phenolic compounds(PCs)are a group of compounds with various applications in nutraceutical,pharmaceutical and cosmetic *** supply by plant extraction and chemical synthesis is often limited by low yield and high *** production represents as a promising alternative for efficient and sustainable production of *** this review,we summarize recent advances in this field,which include enzyme mining and engineering to construct artificial pathways,balance of enzyme expression to improve pathway efficiency,coculture engineering to alleviate metabolic burden and side-reactions,and the use of genetic circuits for dynamic regulation and high throughput ***,current challenges and future perspectives for efficient production of PCs are also discussed.

关键词： Phenolic compounds Pathway design Protein engineering Coculture engineering Modular pathway optimization dynamic regulation

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Sweat-Driven Silk-yarn Switches Enabled by Highly Aligned Gaps for Air-conditioning Textiles

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Advanced Fiber Materials 2019年第3期1卷 197-204页

作者： Zhe Yin Songlin Shi Xiaoping Liang Mingchao Zhang Quanshui Zheng Yingying Zhang Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China Center for Nano and Micro Mechanics Tsinghua UniversityBeijing 100084China Department of Engineering Mechanics School of Aerospace EngineeringTsinghua UniversityBeijing 100084China

Smart textiles are attracting great ***,air-conditioning textiles are highly desired for their merits in energy conservation and personal temperature/humidity ***,air-conditioning textiles can be fabricated by two *** uses infrared-radiation-adaptive materials,and the other uses moisture-responsive actuators that can regulate temperature and humidity ***,the fabrication of a silk-yarn switch comprising electrospun highly aligned nanofibers is reported and its application in air-conditioning textiles is *** yarn rotates in contact with liquid,and can be recovered by *** different responses and wetting behaviors of the switch to H_(2)O and C_(2)H_(6)O is *** is argued that alignment and surface hydrophilicity of nanofibers play important roles in this *** elaborate,actuating trait is mainly controlled by reduction of the surface free energy of aligned silk nanofibers,during the wetting *** proof of concept,the application of the sweat-driven silk-yarn switch in regulating the temperature/humidity of the human body is demonstrated in this *** the large production,versatile processibility,and good biocompatibility,silk actuator may have practical applications in designing smart switches(or valves)for intelligent textiles,artificial muscles,and other application scenarios.

关键词： Silk fibroin Aligned gaps Yarn actuator Surface free energy dynamic regulation

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One stone two birds: Biosynthesis of 3-hydroxypropionic acid from CO2 and syngas-derived acetic acid in Escherichia coli

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Synthetic and Systems Biotechnology 2021年第3期6卷 144-152页

作者： Ningyu Lai Yuanchan Luo Peng Fei Peng Hu Hui Wu State Key Laboratory of Bioreactor Engineering School of BiotechnologyEast China University of Science and Technology130 Meilong RoadShanghai200237China Shanghai Collaborative Innovation Center for Biomanufacturing Technology 130 Meilong RoadShanghai200237China Key Laboratory of Bio-based Material Engineering of China National Light Industry Council 130 Meilong RoadShanghai200237China Shanghai GTL Biotech Co. Ltd.1688 North Guoquan RoadShanghai200438China

Syngas,which contains large amount of CO2 as well as H2 and CO,can be convert to acetic acid chemically or ***,acetic acid become a cost-effective nonfood-based carbon source for value-added biochemical *** this study,acetic acid and CO2 were used as substrates for the biosynthesis of 3-hydroxypropionic acid(3-HP)in metabolically engineered Escherichia coli carrying heterogeneous acetyl-CoA carboxylase(Acc)from Corynebacterium glutamicum and codon-optimized malonyl-CoA reductase(MCR)from Chloroflexus *** of metabolic engineering included promoting glyoxylate shunt pathway,inhibiting fatty acid synthesis,dynamic regulating of TCA cycle,and enhancing the assimilation of acetic *** engineered strain LNY07(M*DA)accumulated 15.8 g/L of 3-HP with the yield of 0.71 g/g in 48 h by whole-cell ***,syngas-derived acetic acid was used as substrate instead of pure acetic *** concentration of 3-HP reached 11.2 g/L with the yield of 0.55 g/g in LNY07(M*DA).The results could potentially contribute to the future development of an industrial bioprocess of 3-HP production from syngas-derived acetic acid.

关键词： Syngas-derived acetic acid 3-Hydroxypropionic acid Metabolic engineering Escherichia coli dynamic regulation

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Toward fine-tuned metabolic networks in industrial microorganisms

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Synthetic and Systems Biotechnology 2020年第2期5卷 81-91页

作者： Ning Li Weizhu Zeng Sha Xu Jingwen Zhou Key Laboratory of Industrial Biotechnology Ministry of Education and School of BiotechnologyJiangnan University1800 Lihu RoadWuxiJiangsu214122China National Engineering Laboratory for Cereal Fermentation Technology Jiangnan University1800 Lihu RoadWuxiJiangsu214122China Jiangsu Provisional Research Center for Bioactive Product Processing Technology Jiangnan University1800 Lihu RoadWuxiJiangsu214122China

There are numerous microorganisms in nature capable of synthesizing diverse useful compounds;however,these natural microorganisms are generally inefficient in the production of target products on an industrial scale,relative to either chemical synthesis or extraction *** achieve industrial production of useful compounds,these natural microorganisms must undergo a certain degree of mutation or effective fine-tuning *** review describes how to achieve an ideal metabolic fine-tuned process,including static control strategies and dynamic control *** static control strategies mainly focus on various matabolic engineering strategies,including protein engineering,upregulation/downregulation,and combinatrorial control of these metabolic engineering strategies,to enhance the flexibility of their application in fine-tuned metabolic ***,we focus on the dynamic control strategies for fine-tuned metabolic *** design principles derived would guide us to construct microbial cell factories for various useful compounds.

关键词： Fine-tuned regulation Protein engineering Upregulation Downregulation dynamic regulation

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