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The fourth exon confers antagonistic activity of OsMFT1 and OsMFT2 in rice pre-harvest sprouting

The Crop Journal 2025年第1期13卷 135-144页

作者： Jialing Zhang Fei Liu Yang Kuang Ming Luo Chengcai Chu Fan Xu College of Agronomy and Biotechnology Southwest UniversityChongqing 400715China Guangdong Laboratory for Lingnan Modern Agriculture State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesCollege of AgricultureSouth China Agricultural UniversityGuangzhou 510642GuangdongChina

Pre-harvest sprouting(PHS)describes the germination of physiologically mature grains in spikes prior to harvest in cereal *** could seriously decrease grain yield and quality,which makes it a major constraint to cereal production worldwide.A number of PHS-associated genes in cereals have been reported;however,the molecular mechanisms underlying PHS remain largely ***,we report a CRISPRCas9 mutant with severe PHS in a paddy *** mutated gene OsMFT2 encodes a phosphatidylethanolamine-binding protein(PEBP).Intriguingly,the OsMFT1,in the same PEBP family,had the opposite effect in controlling rice PHS as does *** tests of seeds of chimeric protein-expressing plants revealed that the fourth exon conferred the antagonistic activity of OsMFT1 and OsMFT2 in rice ***,two lines of these plants showed elevated grain numbers per panicle,implying that chimeric protein has potential to significantly increase ***,transcriptome analysis and genetic studies indicated that OsMFT1 and OsMFT2 performed opposing functions in rice PHS owing to three co-regulated genes that being contrastingly affected by OsMFT1 and ***,it seemed that the proper combination of PEBP family members could obtain optimal PHS resistance and high yield.

关键词： Rice Pre-harvest sprouting PEBP MFT

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LG1 promotes preligule band formation through directly activating ZmPIN1 genes in maize

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Journal of Genetics and Genomics 2025年第3期52卷 356-366页

作者： Zhuojun Zhong Minhao Yao Yingying Cao Dexin Kong Baobao Wang Yanli Wang Rongxin Shen Haiyang Wang Qing Liu State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources Guangdong Laboratory for Lingnan Modern AgricultureCollege of Life SciencesSouth China Agricultural UniversityGuangzhouGuangdong 510642China Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization College of Horticultural Science&TechnologyHeBei Normal University of Science&TechnologyQinhuangdaoHebei 066004China

Increasing plant density is an effective strategy for enhancing crop yield per unit land area.A key architectural trait for crops adapting to high planting density is a smaller leaf angle(LA).Previous studies have demonstrated that LG1,a SQUAMOSA BINDING PROTEIN(SBP)transcription factor,plays a critical role in LA ***,the molecular mechanisms underlying the regulation of LG1 on LA formation remain largely *** this study,we conduct comparative RNA-seq analysis of the preligule band(PLB)region of wild type and lg1 mutant *** Ontology(GO)term enrichment analysis reveals enrichment of phytohormone pathways and transcription factors,including three auxin transporter genes ZmPIN1a,ZmPIN1b,and *** molecular experiments demonstrate that LG1 can directly bind to the promoter region of these auxin transporter genes and activate their *** also show that double and triple mutants of these ZmPINs genes exhibit varying degrees of auricle size reduction and thus decreased *** the contrary,overexpression of ZmPIN1a causes larger auricle and *** together,our findings establish a functional link between LG1 and auxin transport in regulating PLB formation and provide valuable targets for genetic improvement of LA for breeding high-density tolerant maize cultivars.

关键词： Maize(Zea mays L.) LG1 Leaf angle(LA) Preligule band Auxin transport

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The METHYLTRANSFERASE B-SERRATE interaction mediates the reciprocal regulation of microRNA biogenesis and RNA m^(6)A modification

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Journal of Integrative Plant Biology 2024年第12期66卷 2613-2631页

作者： Haiyan Bai Yanghuan Dai Panting Fan Yiming Zhou Xiangying Wang Jingjing Chen Yuzhe Jiao Chang Du Zhuoxi Huang Yuting Xie Xiaoyu Guo Xiaoqiang Lang Yongqing Ling Yizhen Deng Qi Liu Shengbo He Zhonghui Zhang Guangdong Provincial Key Laboratory of Biotechnology for Plant Development School of Life ScienceSouth China Normal UniversityGuangzhou 510631China Guangdong Laboratory for Lingnan Modern Agriculture State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesGuangdong Provincial Key Laboratory of Plant Molecular BreedingSouth China Agricultural UniversityGuangzhou 510642China Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China(Co-construction by Ministry and Province) Ministry of Agriculture and Rural AffairsGuangzhou 510640China Guangdong Key Laboratory of New Technology in Rice Breeding Guangdong Rice Engineering LaboratoryRice Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640China Guangdong Province Key Laboratory of Microbial Signals and Disease State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesSouth China Agricultural UniversityGuangzhou 510642China

In eukaryotes,RNA N6-methyladenosine(m^(6)A)modification and microRNA(miRNA)-mediated RNA silencing represent two critical epigenetic regulatory *** m^(6)A methyltransferase complex(MTC)and the microprocessor complex both undergo liquid–liquid phase separation to form nuclear membraneless *** m^(6)A methyltransferase has been shown to positively regulate miRNA biogenesis,a mechanism of reciprocal regulation between the MTC and the microprocessor complex has remained ***,we demonstrate that the MTC and the microprocessor complex associate with each other through the METHYLTRANSFERASE B(MTB)–SERRATE(SE)interacting *** of MTB impaired miRNA biogenesis by diminishing microprocessor complex binding to primary miRNAs(pri-miRNAs)and their respective MIRNA ***,loss of SE function led to disruptions in transcriptome-wide m^(6)A *** biochemical assays and fluorescence recovery after photobleaching(FRAP)assay indicated that SE enhances the liquid–liquid phase separation and solubility of the ***,the MTC exhibited enhanced retention on chromatin and diminished binding to its RNA substrates in the se mutant ***,our results reveal the substantial regulatory interplay between RNA m^(6)A modification and miRNA biogenesis.

关键词： iquid-liquid phase separation microRNA biogenesis MTB RNA m^(6)A modification SE

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AND-logic-gate measurement of bisulfite and viscosity using a dual-lock-and-key fluorescent probe

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Science China Chemistry 2025年

作者： Tianyu Liang Shuling Liu Yunhe Jiang Mingyu Tian Chengyan Wu Yang Li Tianruo Shen Xiaofei Sun Keli Zhong Lijun Tang School of Chemistry and Materials Engineering Bohai University Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education Dalian Minzu University Science Mathematics and Technology Cluster Singapore University of Technology and Design

This study presents an innovative dual-lock-and-key fluorescent probe engineered for the simultaneous detection of bisulfite and viscosity. The functionalized probe,(E)-2-(1-ethyl-2-(N-methylquinolinevinyl)quinolin-4(1H)-ylidene)malononitrile(QCQNM), was strategically synthesized by conjugating the quinolylmalononitrile and N-methylquinolinium through an ethylene bridge. Within this construction, the N-methylquinolinium selectively targets bisulfite, while the vinyl moiety serves as a responsive rotor for viscosity. Notably, the presence of either sulfite or viscosity alone cannot elicit significant fluorescent responses from the probe. Conversely, concurrent exposure to both bisulfite and viscosity triggers enhanced fluorescent signals,indicative of an “AND” logic gate characteristic. Quantum chemical calculations were further applied to rationalize the working mechanism of the probe. Additionally, the excellent biocompatibility of this probe in cellular imaging experiments highlights its potential for specific mitochondrial imaging by modulating both exogenous/endogenous bisulfite levels alongside viscosity induced by monensin. This novel approach thereby offers a distinctive analytical tool for monitoring the coexistence of viscosity and bisulfite in specific metabolic and physiological contexts.

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Direct RNA sequencing in plants:Practical applications and future perspectives

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Plant Communications 2024年第11期5卷 54-71页

作者： Xi-Tong Zhu Pablo Sanz-Jimenez Xiao-Tong Ning Muhammad Tahir ul Qamar Ling-Ling Chen State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China National Key Laboratory of Crop Genetic Improvement College of InformaticsHuazhong Agricultural UniversityWuhan 430070China Integrative Omics and Molecular Modeling Laboratory Department of Bioinformatics and BiotechnologyGovernment College University Faisalabad(GCUF)Faisalabad 38000Pakistan These authors contributed equally to this article

The transcriptome serves as a bridge that links genomic variation to phenotypic diversity.A vast number of studies using next-generation RNA sequencing(RNA-seq)over the last 2 decades have emphasized the essential roles of the plant transcriptome in response to developmental and environmental conditions,providing numerous insights into the dynamic changes,evolutionary traces,and elaborate regulation of the plant *** substantial improvement in accuracy and throughput,direct RNA sequencing(DRS)has emerged as a new and powerful sequencing platform for precise detection of native and full-length transcripts,overcoming many limitations such as read length and PCR bias that are inherent to short-read ***,we review recent advances in dissecting the complexity and diversity of plant transcriptomes using DRS as the main technological approach,covering many aspects of RNA metabolism,including novel isoforms,poly(A)tails,and RNA modification,and we propose a comprehensive workflow for processing of plant DRS *** challenges to the application of DRS in plants,such as the need for machine learning tools tailored to plant transcriptomes,remain to be overcome,and together we outline future biological questions that can be addressed by DRS,such as allele-specific RNA *** technology provides convenient support on which the connection of distinct RNA features is tightly built,sustainably refining our understanding of the biological functions of the plant transcriptome.

关键词： direct RNA sequencing novel isoforms fusion transcripts poly(A)tail RNA modifications

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Potential of ginsenoside Rh_(2)and its derivatives as anti-cancer agents

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Chinese Journal of Natural Medicines 2022年第12期20卷 881-901页

作者： LI Keke LI Zhongyu Men Lei LI Wei GONG Xiaojie Key Laboratory of Biotechnology and Bioresources Utilization Ministry of EducationDalian Minzu UniversityDalian 116600China College of Chinese Medicinal Materials Jilin Agricultural UniversityChangchun 130118China

As a steroid skeleton-based saponin,ginsenoside Rh_(2)(G-Rh_(2))is one of the major bioactive ginsenosides from the plants of genus Panax *** studies have reported the notable pharmacological activities of G-Rh_(2)such as anticancer,antiinflammatory,antiviral,antiallergic,antidiabetic,and anti-Alzheimer’s *** preclinical studies have demonstrated the great potential of G-Rh_(2)in the treatment of a wide range of carcinomatous diseases in vitro and in vivo.G-Rh_(2)is able to inhibit proliferation,induce apoptosis and cell cycle arrest,retard metastasis,promote differentiation,enhance chemotherapy and reverse multi-drug resistance against multiple tumor *** present review mainly summarizes the anticancer effects and related mechanisms of G-Rh_(2)in various models as well as the recent advances in G-Rh_(2)delivery systems and structural modification to ameliorate its anticancer activity and pharmacokinetics characteristics.

关键词： Ginsenoside Rh_(2) Anticancer Mechanisms of action Synergistic effect Drug delivery systems

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Regulation of 2-acetyl-1-pyrroline and grain quality in early-season indica fragrant rice by nitrogen and silicon fertilization under different plantation methods

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Journal of Integrative Agriculture 2024年第2期23卷 511-535页

作者： Yongjian Chen Lan Dai Siren Cheng Yong Ren Huizi Deng Xinyi Wang Yuzhan Li Xiangru Tang Zaiman Wang Zhaowen Mo State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of AgricultureSouth China Agricultural UniversityGuangzhou 510642China Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology Yulin Normal UniversityYulin 537000China Key Laboratory for Conservation and Utilization of Subtropical Bio-Resources Education Department of Guangxi Zhuang Autonomous Region/College of Biology and PharmacyYulin Normal UniversityYulin 537000China Scientific Observing and Experimental Station of Crop Cultivation in South China Ministry of Agriculture and Rural AffairsGuangzhou 510642China Guangzhou Key Laboratory for Science and Technology of Fragrant Rice Guangzhou 510642China Key Laboratory of Key Technology for South Agricultural Machine and Equipment Ministry of Education/College of EngineeringSouth China Agricultural UniversityGuangzhou 510642China

Fragrant rice has a high market value,and it is a popular rice type among consumers owing to its pleasant *** methods,nitrogen(N)fertilizers,and silicon(Si)fertilizers can affect the grain yield and fragrance of fragrant ***,the core commercial rice production attributes,namely the head rice yield(HRY)and 2-acetyl-1-pyrroline(2-AP)content of fragrant rice,under various nitrogen and silicon(N-Si)fertilization levels and different plantation methods remain *** field experiment in this study was performed in the early seasons of 2018 and 2019 with two popular indica fragrant rice cultivars(Yuxiangyouzhan and Xiangyaxiangzhan).They were grown under six N-Si fertilization treatments(combinations of two levels of Si fertilizer,0 kg Si ha^(−1)(Si0)and 150 kg Si ha^(−1)(Si1),and three levels of N fertilizer,0 kg N ha^(−1)(N0),150 kg N ha^(−1)(N1),and 220 kg N ha^(−1)(N2))and three plantation methods(artificial transplanting(AT),mechanical transplanting(MT),and mechanical direct-seeding(MD)).The results showed that the N-Si fertilization treatments and all the plantation methods significantly affected the HRY and 2-AP content and related parameters of the two different fragrant rice *** with the Si0N0 treatment,the N-Si fertilization treatments resulted in higher HRY and 2-AP *** rates of brown rice,milled rice,head rice,and chalky rice of the fragrant rice also improved with the N-Si fertilization *** N-Si fertilization treatments increased the activities of N metabolism enzymes and the accumulation of N and Si in various parts of the fragrant rice,and affected their antioxidant response *** key parameters for the HRY and 2-AP content were assessed by redundancy ***,the structural equation model revealed that the Si and N accumulation levels indirectly affected the HRY by affecting the N metabolism enzyme activity,N use efficiency,and grain quality of fragrant ***,high N

关键词： fragrant rice 2-AP content head rice yield mechanical planting nitrogen silicon

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Breeding maize of ideal plant architecture for high-density planting tolerance through modulating shade avoidance response and beyond

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Journal of Integrative Plant Biology 2024年第5期66卷 849-864页

作者： Fereshteh Jafari Baobao Wang Haiyang Wang Junjie Zou Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China Graduate School of Chinese Academy of Agricultural Sciences Beijing 100081China National Nanfan Research Institute CAASSanya 572025China State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of Life SciencesSouth China AgriculturalUniversityGuangzhou 510642China

Maize is a major staple crop widely used as food,animal feed,and raw materials in industrial ***-density planting is a major factor contributing to the continuous increase of maize ***,high planting density usually triggers a shade avoidance response and causes increased plant height and ear height,resulting in lodging and yield *** plant height and ear height,more erect leaf angle,reduced tassel branch number,earlier flowering,and strong root system architecture are five key morphological traits required for maize adaption to high-density *** this review,we summarize recent advances in deciphering the genetic and molecular mechanisms of maize involved in response to high-density *** also discuss some strategies for breeding advanced maize cultivars with superior performance under high-density planting conditions.

关键词： flowering time high-density planting leaf angle maize plant architecture plant height/ear height root architecture tasselbranch

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Antimicrobial Activity of Carbon Dots Against Aquatic Spoilage Bacteria Synthesized from Banana Peel Waste

SSRN

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SSRN 2025年

作者： Meng, Yueyue Zhu, Huiyu Li, Xinyi Zhao, Shuang Ma, Kun Li, Tingting Key Laboratory of Biotechnology and Bioresources Utilization Dalian Minzu University Ministry of Education Liaoning Dalian116600 China

Biomass-based carbon dots (CDs) have become promising nanomaterials due to their various advantages, such as abundant raw materials, ease of synthesis and cost effectiveness. In this study, we used biomass banana peels (BP) as the precursor to synthesize CDs (defined as BP-CDs). The average sizes of BP-CDs were found to be around 5.9 nm. Characterization experiments revealed that BP-CDs exhibited an acceptable degree of graphitization and possessed various surface functional groups. The antioxidant assays in vitro suggested that BP-CDs displayed strong free-radical scavenging abilities. The results of antimicrobial experiments revealed that BP-CDs exhibited noteworthy antimicrobial effects against spoilage bacteria of aquatic products. Metabolomics analysis was performed to further reveal the underlying mechanism of antibacterial activity of BP-CDs. Taken together, these data suggest that BP-CDs could be used as an antioxidant and antibacterial agent for the development of new preservation technologies for aquatic products. © 2025, The Authors. All rights reserved.

关键词： Spoilage

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Highly Efficient Heavy-Metal-Ion Removal from Shellfish Processing Liquid with Low Protein and Polysaccharide Loss by Hybrid Mesoporous Silica Diol-APDC-SBA15

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Journal of Ocean University of China 2023年第1期22卷 221-228页

作者： QI Yanxia SONG Yang LIU Chang QI Shizhe WANG Haibo CAO Jijuan ZHAO Qiancheng College of Food Science and Engineering Dalian Ocean UniversityDalian 116023China Liaoning Provincial Aquatic Products Analyzing Testing and Processing Technology Scientific Service CenterDalian 116023China Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education Dalian Minzu UniversityDalian 116600China Collaborative Innovation Center of Seafood Deep Processing Dalian Polytechnic UniversityDalian 116034China Dalian Key Laboratory of Marine Bioactive Substances Development and High Value Utilization Dalian 116034China

Heavy metal ions in shellfish products are harmful to human health,and their removal with low nutrient loss remains ***,a new type of mesoporous silica(SBA15),modified internally with ammonium pyrrolidine dithiocarbamate(APDC)and externally with alkyl-diol groups,which was named as Diol-APDC-SBA15,was successfully developed and characterized by powder X-ray diffraction patterns,nitrogen adsorption,and Fourier transform infrared *** solutions with lead,chromium,cadmium,and copper were used to investigate the adsorption capacity of ***-APDC-SBA15 was adopted to remove heavy metals from cooking liquids of clams(Ruditapes philippinarum),hydrolysate liquids of oysters(Ostrea gigas Thunberg),and polysaccharide solution from the cooking liquid of *** efficiencies of removing heavy metal ions and the loss rates of proteins and polysaccharides were *** results showed that the adsorption capacities of Diol-APDCSBA15 for Pb,Cr,Cd,and Cu in standard heavy-metal solutions were 161.4,166.1,29.6,and 60.2mgg^(−1),*** removal efficiency of Diol-APDC-SBA15 for Pb in the three shellfish processing liquids ranged from 60.5%to 99.6%.The Cr removal efficiency was above 99.9%in the oyster hydrolysate ***,the percentages of polysaccharide loss were 5.5%and 3.7%in the cooking liquid of clam and polysaccharide solution,respectively,and the protein loss was 1.2%in the oyster hydrolysate ***,the Diol-APDC-SBA15 material exhibits a great potential application in the removal of heavy metals from shellfish processing liquids with low losses of proteins and polysaccharides.

关键词： heavy-metal removal modified mesoporous silica shellfish processing liquid protein polysaccharide

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