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Methane Emission from Rice Fields:Necessity for Molecular Approach for Mitigation

Rice science 2024年第2期31卷 159-178页

作者： Sujeevan RAJENDRAN Hyeonseo PARK Jiyoung KIM Soon Ju PARK dongjin shin Jong-Hee LEE Young Hun SONG Nam-Chon PAEK Chul Min KIM Department of Horticulture Industry Wonkwang UniversityIksan 54538Korea Plant Molecular Biology and Biotechnology Research Center Gyeongsang National UniversityJinju 52828Korea Department of Southern Area Crop Science National Institute of Crop ScienceMiryang 50424Korea Department of Agricultural Biotechnology Seoul National UniversitySeoul 08826Korea Department of Plant Science Plant Genomics and Breeding InstituteResearch Institute of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Korea

Anthropogenic methane emissions are a leading cause of the increase in global averagetemperatures,often referred to as global *** soils play a significant role in methaneproduction,where the anaerobic conditions promote the production of methane by *** fields contribute a considerable portion of agricultural methane emissions,as riceplants provide both factors that enhance and limit methane *** plants harbor both methaneproducingand methane-oxidizing *** from rice roots provide source for methaneproduction,while oxygen delivered from the root aerenchyma enhances methane *** haveshown that the diversity of these microorganisms depends on rice cultivars with some genes characterizedas harboring specific groups of microorganisms related to methane ***,there is still aneed for research to determine the balance between methane production and oxidation,as rice plantspossess the ability to regulate net methane *** agronomical practices,such as fertilizerand water management,have been employed to mitigate methane ***,studiescorrelating agronomic and chemical management of methane with productivity are ***,evidences for breeding low-methane-emitting rice varieties are scattered largely due to the absence ofcoordinated breeding *** has indicated that phenotypic characteristics,such as rootbiomass,shoot architecture,and aerenchyma,are highly correlated with methane *** reviewdiscusses available studies that involve the correlation between plant characteristics and *** emphasizes the necessity and importance of breeding low-methane-emitting rice varieties inaddition to existing agronomic,biological,and chemical *** review also delves into the idealphenotypic and physiological characteristics of low-methane-emitting rice and potential breeding techniques,drawing from studies conducted

关键词： methane emission rice breeding aerenchyma greenhouse gas radial oxygen loss

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NOON-state interference in the frequency domain

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Light(Science & Applications) 2024年第5期13卷 843-851页

作者： dongjin Lee Woncheol shin Sebae Park Junyeop Kim Heedeuk shin Department of Physics Pohang University of Science and Technology(POSTECH)Pohang 37673South Korea

The examination of entanglement across various degrees of freedom has been pivotal in augmenting our understanding of fundamental physics,extending to high dimensional quantum states,and promising the scalability of quantum *** this paper,we demonstrate the photon number path entanglement in the frequency domain by implementing a frequency beam splitter that converts the single-photon frequency to another with 50%probability using Bragg scattering four-wave *** two-photon NOON state in a single-mode fiber is generated in the frequency domain,manifesting the two-photon interference with two-fold enhanced resolution compared to that of single-photon interference,showing the outstanding stability of the *** successful translation of quantum states in the frequency domain will pave the way toward the discovery of fascinating quantum phenomena and scalable quantum information processing.

关键词： quantum state showing

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Speed vernalization to accelerate generation advance in winter cereal crops

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Molecular Plant 2022年第8期15卷 1300-1309页

作者： Jin-Kyung Cha Kathryn O'Connor Samir Alahmad Jong-Hee Lee Eric Dinglasan Hyeonjin Park So-Myeong Lee Dominique Hirsz Soon-Wook Kwon Youngho Kwon Kyeong-Min Kim Jong-Min Ko Lee T.Hickey dongjin shin Laura E.Dixon National Institute of Crop Science RDAMiryang 50424Korea School of Biology Faculty of Biological SciencesUniversity of LeedsLeeds LS29JTUK Queensland Alliance for Agriculture and Food Innovation The University of QueenslandSt.LuciaQLDAustralia Department of Plant Bioscience Pusan National UniversityMiryang 60463Korea

There are many challenges facing the development of high-yielding,nutritious crops for future *** limiting factor is generation time,which prolongs research and plant breeding *** advances in speed breeding protocols have dramatically reduced generation time for many short-day and long-day species by optimizing lightand temperature conditions during plant ***,winter crops with a vernalization requirement stillrequire upto 6-10weeks in low-temperature conditions before thetransition to ***,we tested a suite of environmental conditions and protocols to investigate whether the vernalization process can be *** identified a vernalization method consisting of exposing seeds at the soil surface to an extended photoperiod of 22 h day:2 h night at 10°C with transfer to speed breeding conditions that dramatically reduces generation time in both winter wheat(Triticum aestivum)and winter barley(Hordeum vulgare).Implementation of the speedvernalization protocolfollowed byspeedbreedingallowed the completion ofuptofivegenerations per yearforwinter wheat or barley,whereas only two generations can be typically completed under standard vernalization and plant growth *** speed vernalization protocol developed in this study has great potential to accelerate biological research and breeding outcomes for winter crops.

关键词： speed breeding photoperiod temperature wheat barley breeding

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水稻RIL群体高密度遗传图谱的构建及苗期耐热性QTL定位

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中国农业科学 2022年第22期55卷 4327-4341页

作者：刘进胡佳晓马小定陈武勒思 Jo Sumin 崔迪周慧颖张立娜 shin dongjin 黎毛毛韩龙植余丽琴江西省农业科学院水稻研究所/江西省农作物种质资源研究中心中国农业科学院作物科学研究所韩国农村振兴厅粮食科学院南部作物部

【目的】随着全球气候变暖，高温严重威胁粮食安全，发掘耐热基因资源是培育耐高温新品种和消除高温危害最直接的绿色生态途径，也是阐明耐热生理生化和分子遗传机理的基础。【方法】构建苗期耐热性鉴定评价方法，以热敏感品种周南稻和... 详细信息

【目的】随着全球气候变暖，高温严重威胁粮食安全，发掘耐热基因资源是培育耐高温新品种和消除高温危害最直接的绿色生态途径，也是阐明耐热生理生化和分子遗传机理的基础。【方法】构建苗期耐热性鉴定评价方法，以热敏感品种周南稻和强耐热品种赣早籼58号杂交衍生的重组自交系（recombinant inbred lines,RIL）群体为研究材料，利用高通量测序技术对亲本和RIL群体进行全基因组测序；依据171个家系的基因型数据，利用滑动窗口法将SNP信息转换成Bin基因型，预测染色体上的重组断点，构建RIL群体高密度BinMap遗传图谱，结合耐热表型数据，运用QTL IciMapping软件完备复合区间ICIM的作图方法，进行高温胁迫下幼苗存活率和耐热等级QTL分析。【结果】构建了一张包含3 321个Bin标记高密度遗传图谱，各染色体Bin标记数为159—400个，标记间平均物理距离为106 kb；利用逐步高温胁迫方式鉴定亲本和RIL家系幼苗耐热表型，高温胁迫下，幼苗存活率和耐热等级存在极显著负相关性，且幼苗存活率与籼型基因频率存在显著正相关性，籼型基因频率越高，耐热性越好，RIL群体表型性状呈现双峰连续分布，苗期耐热性可能受少数几个主效QTL调控；共检测到12个苗期耐热性相关的QTL，其中，调控幼苗存活率和耐热等级的QTL分别有8和4个，幼苗存活率和耐热等级相关QTL存在遗传重叠现象，形成调控耐热性的主效QTL簇qHTS2、qHTS7和qHTS8，三者在调控苗期高温抗逆中具有重要作用，其中，qHTS7为新发现主效QTL，对增强苗期耐热性具有较强的功效。【结论】构建了一张包含3 321个Bin标记的高密度分子遗传图谱，解析了耐热品种赣早籼58号苗期耐热基因，鉴定出3个苗期耐热调控关键QTL簇，发掘了一个新主效QTL簇qHTS7，基于高密度遗传图谱高效获取目标区段及候选基因，筛选出8个苗期耐热性调控的关键目标基因。

关键词：水稻高密度图谱苗期耐热性 QTL定位

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Screening of drought tolerant rice germplasms and analysis of drought tolerant QTL under long-term drought stress conditions

Screening of drought tolerant rice germplasms and analysis o...

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中国作物学会——2015年学术年会

作者： dongjin shin Tae-Heon Kim Sang-Ik Han Jun-Hyun Cho You-Chun Song Min-Hee Nam Dong-Soo Park Yeong-Up Kwon Department of Southern Area Crop Science National Institute of Crop ScienceRDA

Little progress has been made in the genetic analysis of drought tolerance,because it is a complex trait controlled by a number of genes and affected by various environmental *** here,we screened drought tolerant varieties with modified leaf water loss rate assay and visual drought tolerant phenotype in the greenhouse conditions with more than 800 *** these varieties,Samgang,Gumei4 and Apo showed the lowest of leaf water loss rate and strong drought tolerant phenotype and we choose Samgang for further *** identify which chromosome loci in Samgang have functions for drought tolerant,we generated a double-haploid(DH)population of 101 individuals derived from a cross of the drought tolerant variety Samgang and the drought sensitive variety *** drought phenotype and relative water content(RWC)were examined for phenotypic evaluation of double-haploid population under drought stress *** score the drought phenotype degrees of this population,we withheld water for 6weeks and treated the watering for 7 *** watering,visual phenotype was observed 1 to 9 degree according to the standard evaluation system for rice,*** sensitive parent Nagdong was almost died and was scored as 9 degree,while tolerant parent Samgang showed slightly leaf tip drying phenotype and was scored as 3 degree in our experimental *** of 3 QTLs were detected on chromosome2,6,and 11 for visual drought phenotype with 175 molecular *** these QTLs,QTL on chromosome 11 with flanking markers RM26755-RM287 accounted for 24.4%phenotype variation with a LOD score of *** this QTL also functioned for relative water content trait.

关键词： Rice drought tolerant QTL

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CO_(2)-adsorbent spongy electrode for non-aqueous Li–O_(2) batteries

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Journal of Energy Chemistry 2022年第2期31卷 646-653页

作者： Yiseul Yoo Giseung Lee Min-Gi Jeong Hun-Gi Jung Sunghee shin dongjin Byun Taeeun Yim Hee-Dae Lim Center for Energy Storage Research Korea Institute of Science and Technology(KIST)Hwarang-ro 14-gil 5Seongbuk-guSeoul 02792Republic of Korea Department of Materials Science and Engineering Korea University145 Anam-roSeongbuk-guSeoul 02841Republic of Korea Department of Chemistry Incheon National University119 Academy-roYeonsu-guIncheon 22012Republic of Korea Department of Chemical and Biological Engineering Korea UniversitySeoul 02841Republic of Korea

Regulation of the Li_(2)CO_(3) byproduct is the most critical challenge in the field of non-aqueous Li–O_(2) *** considerable efforts have been devoted to preventing Li_(2)CO_(3) formation,no approaches have suggested the ultimate solution of utilizing the clean Li_(2)O_(2) reaction instead of that of Li_(2)CO_(3).Even if extremely pure O_(2) is used in a Li–O_(2) cell,its complete elimination is impossible,eventually generating CO_(2) gas during *** this paper,we present the new concept of a CO_(2)-adsorbent spongy electrode(CASE),which is designed to trap the evolved CO_(2) using adsorption *** candidates composed of amine functional groups(–NH2)for capturing CO_(2) were screened,with quadrapurebenzylamine(QPBZA)exhibiting superior CO_(2)-adsorbing ability among the proposed ***,we fabricated the CASE by sandwiching QPBZA between porous carbon layers,which facilitated the transport of gaseous *** new electrode was demonstrated to effectively capture the evolved CO_(2) during charge,therefore altering the reaction pathways to the ideal *** is highly advantageous to mitigate the undesirable CO_(2) incorporation in the next discharge,resulting in improved *** novel concept of a CO_(2)-sponging electrode provides an alternative route to the realization of practically meaningful Li–O_(2) batteries.

关键词： Li-O_(2)battery Benzylamine CO_(2)adsorption Li_(2)CO_(3) Li_(2)O_(2) CO_(2)-sponging electrode

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