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Regulation of cytokinin biosynthesis using PtRD26pro-IPT module improves drought tolerance through PtARR10-PtYUC4/5-mediated reactive oxygen species removal in Populus

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Journal of Integrative Plant Biology 2022年第3期64卷 771-786页

作者： Hou-Ling Wang Qi Yang shuya tan Ting Wang Yi Zhang Yanli Yang Weilun Yin Xinli Xia Hongwei Guo Zhonghai Li National Engineering Laboratory for Tree Breeding College of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing100083 China Department of Biology Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education InstitutesSouthern University of Science and Technology(SUSTech)Shenzhen518055 China

Drought is a critical environmental factor which constrains plant survival and *** engineering provides a credible strategy to improve drought tolerance of ***,we generated transgenic poplar lines expressing the isopentenyl transferase gene(IPT)under the driver of Pt RD26 promoter(PtRD26 pro-IPT).Pt RD26 is a senescence and drought-inducible NAC transcription *** RD26 pro-IPT plants displayed multiple phenotypes,including improved growth and drought *** analysis revealed that auxin biosynthesis pathway was activated in the PtRD26 pro-IPT plants,leading to an increase in auxin *** analysis revealed that ARABIDOPSIS RESPONSE REGULATOR10(PtARR10),one of the type-B ARR transcription factors in the cytokinin pathway,was induced in PtRD26 pro-IPT plants and directly regulated the transcripts of YUCCA4(Pt YUC4)and YUCCA5(PtYUC5),two enzymes in the auxin biosynthesis *** of PtYUC4 enhanced drought tolerance,while simultaneous silencing of PtYUC4/5 evidently attenuated the drought tolerance of Pt RD26 pro-IPT ***,Pt YUC4/5 displayed a conserved thioredoxin reductase activity that is required for drought tolerance by deterring reactive oxygen species *** work reveals the molecular basis of cytokinin and auxin interactions in response to environmental stresses,and shed light on the improvement of drought tolerance without a growth penalty in trees by molecular breeding.

关键词： auxin cytokinin drought tolerance leaf senescence PtARR PtYUC ROS

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LSD 4.0:an improved database for comparative studies of leaf senescence

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Molecular Horticulture 2022年第1期2卷 303-306页

作者： Jie Cao Yang Zhang shuya tan Qi Yang Hou‑Ling Wang Xinli Xia Jingchu Luo Hongwei Guo Zhang Zhang Zhonghai Li National Engineering Research Center for Tree Breeding and Ecological Restoration College of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083China National Genomics Data Center Beijing 100101China China National Center for Bioinformation Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China College of Life Sciences Peking UniversityBeijing 100871China Center for Bioinformatics Peking UniversityBeijing 100871China Department of Biology Institute of Plant and Food ScienceSouthern University of Science and Technology(SUSTech)Shenzhen 518055GuangdongChina

Leaf senescence is the final stage of leaf development and involves the active degradation and dynamic transfer of its cellular components to newly growing and storage tissues,which contributes to plant fitness(Gan and Amasino,1997;Lim et al.,2007).The genetic modification of leaf senescence has emerged as a promising strategy for improving nutritional traits and stress tolerance in plants(Rivero et al.,2007).Efforts to dissect the molecular mechanisms underpinning leaf senescence reveal that it is a highly coordinated process regulated by a large number of senescence-associated genes(SAGs)(Guo and Gan,2005;Lim et al.,2007).Functional studies of these SAG genes through reverse genetics strategies and identification of senescence-altered mutants through forward genetic screening have deepened the understanding of leaf senescence(Guo et al.,2021).

关键词： traits senescence emerged

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土壤栽培和无土栽培菜心中内生细菌比较及分离鉴定

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应用与环境生物学报 2019年第6期25卷 1420-1427页

作者：顾李成黄彩怡黄淑芬江宝茹谭淑雅陈俊毅彭桂香谭志远华南农业大学农学院广州510642 华南农业大学资源环境学院广州510642

菜心(Brassica parachinensis)是华南地区的一种特色蔬菜.为探究无土栽培和土壤栽培菜心内生细菌的差异,以这两种栽培方式的菜心为材料,分离内生细菌.根据插入序列指纹图谱(IS-PCR)结果进行聚类,对代表性菌株的16S rRNA基因序列进行系... 详细信息

菜心(Brassica parachinensis)是华南地区的一种特色蔬菜.为探究无土栽培和土壤栽培菜心内生细菌的差异,以这两种栽培方式的菜心为材料,分离内生细菌.根据插入序列指纹图谱(IS-PCR)结果进行聚类,对代表性菌株的16S rRNA基因序列进行系统发育分析,并将菌株加入无土栽培营养液中,收获后测定菜心的的相对叶绿素含量(SPAD)和可溶性糖含量.结果显示,从两种菜心中共分离到31株内生细菌,IS-PCR结果将其聚为9个类群,16S rRNA基因鉴定其分别属于Bacillus sp.(芽孢杆菌属)、Rhizobium sp.(根瘤菌属)、Microbacterium sp.(微杆菌属)、Leifsonia sp.(雷夫松氏菌属)、Sphingomonas sp.(鞘氨醇单胞菌属)、Alcaligenes sp.(产碱菌属)和Agrobacterium sp.(农杆菌属).土壤栽培菜心中可培养细菌数目多于无土栽培菜心,且土壤栽培菜心中内生细菌的碳代谢更多样化.生理生化实验显示,部分菌株能分泌生长素和铁载体.加入土壤栽培菜心中分离得到的菌株SCG14和SCG0802后,无土栽培菜心的相对叶绿素含量和可溶性糖含量比对照显著提高.本研究表明无土栽培和土壤栽培的菜心中的内生细菌在种类、数目、分布部位和碳源利用能力上有差异;此外,分离得到的菌株能提高无土栽培菜心的相对叶绿素以及可溶性糖含量,有开发为微生物制剂的潜力.(图4表6参35)

关键词：无土栽培土壤栽培菜心内生细菌相对叶绿素含量可溶性糖含量

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Equivariant Mapping Class Group and Orbit Braid Group

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Chinese Annals of Mathematics,Series B 2022年第4期43卷 485-498页

作者： shuya CAI Hao LI School of Mathematical Sciences Fudan UniversityShanghai 200433China

Motivated by the work of Birman about the relationship between mapping class groups and braid groups,the authors discuss the relationship between the orbit braid group and the equivariant mapping class group on the closed surface M with a free and proper group action in this *** construction is based on the exact sequence given by the fibration F_(0)^(G) M→F(M/G,n).The conclusion is closely connected with the braid group of the quotient *** with the situation without the group action,there is a big difference when the quotient space is T^(2).

关键词： Equivariant mapping class group Orbit braid group Evaluation map Center of braid group

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Dynamic multi-color long-afterglow and cold-warm white light through phosphorescence resonance energy transfer in host-guest metal-organic frameworks

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Science China Chemistry 2023年第12期66卷 3532-3538页

作者： shuya Liu Yuhang Lin Dongpeng Yan Beijing Key Laboratory of Energy Conversion and Storage Materials Key Laboratory of RadiopharmaceuticalsMinistry of EducationCollege of ChemistryBeijing Normal UniversityBeijing 100875China

Dynamic tuning of single-color and multi-color(including white-light) luminescence has attracted much attention for applications in various fields;however, effective systems are still scarcity to date. Herein, we report the construction of host-guest metal-organic frameworks(MOFs) serves as an effective strategy to achieve the excitation-and time-dependent long afterglow and white light emitting, simultaneously. The guest-induced structural distortion modulates the single-triplet state intersystem crossing, promotes ligand-to-ligand charge transfer(LLCT) in layer-column MOFs, and further boosts multiple exciton generation of triplet states for multi-color ultralong phosphorescence, as indicated by both experiment and density functional theory(DFT) calculation. By further doping of dyes into MOFs, white-light emitting with tunable color temperature can be facilely obtained, which has been further fabricated into white-light light-emitting diode(LED) with color rendering index of 88.4,higher than that of most as-reported pure inorganics and inorganic-organic hybrid systems. Therefore, this work not only describes a host-guest energy transfer route for dynamic tailoring wide range of color-tunable long-afterglow, but also explores the application prospect of new white-light materials with high color rendering and low blue light for promising display and lighting applications.

关键词： phosphorescence ligand-to-ligand charge transfer white-light metal-organic frameworks long-afterglow

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Flexible Crystal Heterojunctions of Low-Dimensional Organic Metal Halides Enabling Color-Tunable Space-Resolved Optical Waveguides

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Research 2024年第3期6卷 293-304页

作者： Yuhang Lin shuya Liu Dongpeng Yan Beijing Key Laboratory of Energy Conversion and Storage Materials and Key Laboratory of RadiopharmaceuticalsMinistry of EducationCollege of ChemistryBeijing Normal UniversityBeijing 100875China.

Molecular luminescent materials with optical waveguide have wide application prospects in light-emitting diodes, sensors, and logic gates. However, the majority of traditional optical waveguide systems are based on brittle molecular crystals, which limited the fabrication, transportation, storage, and adaptation of flexible devices under diverse application situations. To date, the design and synthesis of photofunctional materials with high flexibility, novel optical waveguide, and multi-port color-tunable emission in the same solid-state system remain an open challenge. Here, we have constructed new types of zero-dimensional organic metal halides (Au-4-dimethylaminopyridine [DMAP] and In-DMAP) with a rarely high elasticity and rather low loss coefficients for optical waveguide. Theoretical calculations on the intermolecular interactions showed that the high elasticity of 2 molecular crystalline materials was original from their herringbone structure and slip plane. Based on one-dimensional flexible microrods of 2 crystals and the 2-dimensional microplate of the Mn-DMAP, heterojunctions with multi-color and space-resolved optical waveguides have been fabricated. The formation mechanism of heterojunctions is based on the surface selective growth on account of the low lattice mismatch ratio between contacting crystal planes. Therefore, this work describes the first attempt to the design of metal-halide-based crystal heterojunctions with high flexibility and optical waveguide, expanding the prospects of traditional luminescent materials for smart optical devices, such as logic gates and multiplexers.

关键词： waveguide Crystal elasticity

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模拟氮沉降和接种丛枝菌根真菌对杉木幼苗生长和光合作用的影响

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福建农林大学学报（自然科学版） 2025年第1期54卷 47-58页

作者：陈书羽杨淑雅伊力塔刘美华浙江农林大学林业与生物技术学院浙江杭州311300

【目的】探究根系共生真菌对杉木响应氮沉降的调节作用,为全球氮沉降增加背景下提高杉木人工林生产力提供参考。【方法】以温室盆栽杉木幼苗为研究对象,采用不加氮(N0,0 kg·hm^(-2)·a^(-1))、低氮(N30,30 kg·hm^(-2)·a^(-1))、高氮(... 详细信息

【目的】探究根系共生真菌对杉木响应氮沉降的调节作用,为全球氮沉降增加背景下提高杉木人工林生产力提供参考。【方法】以温室盆栽杉木幼苗为研究对象,采用不加氮(N0,0 kg·hm^(-2)·a^(-1))、低氮(N30,30 kg·hm^(-2)·a^(-1))、高氮(N60,60 kg·hm^(-2)·a^(-1))3个模拟氮沉降水平和不接种、接种根内球囊霉(Glomus intradices)、接种摩西球囊霉(***)3个接种处理的交互试验,研究模拟氮沉降下接种丛枝菌根真菌对杉木的生长以及光合作用的影响。【结果】模拟氮沉降条件下,两种丛枝菌根真菌对杉木根系的侵染率均较高。模拟低氮沉降和接种丛枝菌根真菌对杉木的生长均有一定的促进作用,且摩西球囊霉的促进作用更强;模拟高氮沉降使得杉木地下生物量降低,而接种摩西球囊霉显著增加了高氮下杉木的地上生物量和总生物量的积累(P0.05)。在模拟氮沉降下接种丛枝菌根真菌的杉木幼苗叶绿素含量、叶绿素相对含量(SPAD值)、净光合速率、气孔导度以及电子传递速率均得到显著提高(P<0.05),其中,低氮和接种丛枝菌根真菌共同处理使杉木净光合速率和叶绿素含量达到最大。【结论】丛枝菌根真菌能有效侵染杉木根系;接种丛枝菌根真菌促进了氮沉降下杉木幼苗的生长,其中,摩西球囊霉的促进作用更强;且接种丛枝菌根真菌能够缓解高氮沉降对植株的影响,提高植株的光合作用。

关键词：氮沉降丛枝菌根真菌生长光合作用杉木

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Recent advances in photofunctional polymorphs of molecular materials

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Chinese Chemical Letters 2019年第11期30卷 1908-1922页

作者： Bo Lu shuya Liu Dongpeng Yan Beijing Key Laboratory of Energy Conversion and Storage Materials College of ChemistryBeijing Normal University

Recently,molecule-based luminescent materials have been drawing extensive attention due to their desirable properties and promising applications in the fields of sensors,lighting display and cell *** polymorph is an intriguing phenomenon that the presence of multiple packing and aggregate architectures of the same molecular *** studies on polymorphs for molecule-based fluorophores provide the opportunities to adjust the mode of molecular packing and photophysical properties,which will help to illustrate the structure-property *** this review,we focus on the recent progress in various feasible methods of molecule-based crystalline polymorphism growth and their adjustable photofunctional properties,which will open up possibilities of variant optical ***,several effective ways to prepare and screen polymorphs are sorted *** then,we discuss the discrepant properties and multifunctional applications(such as sensors,laser and OFET).Finally,the development trends and future prospects of these polymorphs are also briefly introduced.

关键词： Polymorphs Organic molecular materials Luminescence Crystalline Preparation Optical applications Structure-property relationship

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Optimal planning of battery energy storage considering reliability benefit and operation strategy in active distribution system

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Journal of Modern Power Systems and Clean Energy 2017年第2期5卷 177-186页

作者： Wenxia LIU shuya NIU Huiting XU State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China

In this paper, a cost-benefit analysis based optimal planning model of battery energy storage system(BESS) in active distribution system(ADS) is established considering a new BESS operation strategy. Reliability improvement benefit of BESS is considered and a numerical calculation method based on expectation is proposed for simple and convenient calculation of system reliability improvement with BESS in planning phase. Decision variables include both configuration variables and operation strategy control variables. In order to prevent the interaction between two types of variables and enhance global search ability, intelligent single particle optimizer(ISPO) is adopted to optimize this model. Case studies on a modified IEEE benchmark system verified the performance of the proposed operation strategy and optimal planning model of BESS.

关键词： Battery energy storage system Cost-benefit analysis Reliability improvement benefit Operation strategy Intelligent single particle optimizer

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Colorful ultralong room-temperature phosphorescence in dual-ligand metal-organic framework

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Chinese Chemical Letters 2023年第7期34卷 200-204页

作者： shuya Liu Yuhang Lin Dongpeng Yan Beijing Key Laboratory of Energy Conversion and Storage Materials College of ChemistryKey Laboratory of RadiopharmaceuticalsMinistry of EducationBeijing Normal UniversityBeijing100875China

Long afterglow organic-inorganic hybrid materials have attracted much attention in recent years and are widely used in information security, biological imaging and many other fields. Since up-conversion long-persistence materials are promising for bio-optical imaging due to their high penetration depth and elimination of autofluorescence background, it is highly desirable to combine down-conversion and up-conversion pathways to obtain smart materials with excitation-dependent tunable room-temperature phosphorescence properties. In this work, a metal-organic framework(Zn-DCPS-BIMB), consisting of divalent zinc ions, o-bis(imidazol-1-ylmethyl)benzene and 4,4-dicarboxydiphenylsulfone, is designed to stabilize triplet excitons, coordinate the emission of different ligands, and endow materials with tunable emission color and up-conversion properties via heavy atoms effects promoting single-triplet orbital coupling and intersystem crossing.

关键词： Room temperature phosphorescence Information encryption Metal-organic framework Up-conversion luminescence Organic-inorganic hybrids

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