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A novel histone methyltransferase gene Cg SDG40 positively regulates carotenoid biosynthesis during citrus fruit ripening

2009中国草原发展论坛

作者： A juan wu xiaodong~(**) fu heping (Inner Mongolia Agricultural University,Hohhot 010018,China)

＜正＞Introduction Animal community,which is a functional unit and organizational structure,is always one of the cores in ecological *** deserts of the world present natural laboratories for the study of community structure and the processes influencing that *** because of the common biotic condition and relative structural（vegetative）simplicity of deserts,these systems have played a promi-

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Journal of Integrative Agriculture 2024年第8期23卷 2633-2648页

作者： Jialing fu Qingjiang wu Xia Wang juan Sun Li Liao Li Li Qiang Xu National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops College of Horticulture&Forestry ScienceHuazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory Wuhan 430070China Institute of Horticultural Sciences Jiangxi Academy of Agricultural SciencesNanchang 330200China Plant Breeding and Genetics Section School of Integrative Plant ScienceCornell UniversityNew York 14853USA Robert W.Holley Center for Agriculture and Health USDA-Agricultural Research ServiceCornell UniversityNew York 14853USA

The flesh color of pummelo(Citrus maxima)fruits is highly diverse and largely depends on the level of carotenoids,which are beneficial to human *** is vital to investigate the regulatory network of carotenoid biosynthesis to improve the carotenoid content in ***,the molecular mechanism underlying carotenoid accumulation in pummelo is not fully *** this study,we identified a novel histone methyltransferase gene,CgSDG40,involved in carotenoid regulation by analyzing the flesh transcriptome of typical white-fleshed pummelo,red-fleshed pummelo and extreme-colored F1 hybrids from a segregated pummelo *** of CgSDG40 corresponded to flesh color change and was highly coexpressed with ***,CgSDG40 and CgPSY1 are located physically adjacent to each other on the chromosome in opposite directions,sharing a partially overlapping promoter *** localization analysis indicated that CgSDG40 localizes to the *** of CgSDG40 significantly increased the total carotenoid content in citrus calli relative to that in wild *** addition,expression of CgPSY1 was significantly activated in overexpression lines relative to wild *** together,our findings reveal a novel histone methyltransferase regulator,CgSDG40,involved in the regulation of carotenoid biosynthesis in citrus and provide new strategies for molecular design breeding and genetic improvement of fruit color and nutritional quality.

关键词： pummelo SET domain protein epigenetic regulation PSY1 lycopene fruit quality fruit color

Enhancing layered perovskite ferrites with ultra-high-density nanoparticles via cobalt doping for ceramic fuel cell anode

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Journal of Energy Chemistry 2024年第9期96卷 39-48页

作者： Shuo Zhai Rubao Zhao Hailong Liao Ling fu Senran Hao Junyu Cai Yifan wu Jian Wang Yunhong Jiang Jie Xiao Tao Liu heping Xie State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering Shenzhen University&Sichuan UniversityShenzhen 518060GuangdongChina National and Local Joint Engineering Research Center for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093YunnanChina School of Energy and Environment City University of Hong KongKowloon 999077Hong KongChina

Nanoparticles anchored on the perovskite surface have gained considerable attention for their wide-ranging applications in heterogeneous catalysis and energy conversion due to their robust and integrated structural ***,we employ controlled Co doping to effectively enhance the nanoparticle exsolution process in layered perovskite ferrites *** alloy nanoparticles with ultra-high-density are exsolved on the(PrBa)_(0.95)(Fe_(0.8)Co_(0.1)Nb_(0.1))2O_(5+δ)(PBFCN_(0.1))surface under reducing atmosphere,providing significant amounts of reaction sites and good durability for hydrocarbon *** a reducing atmosphere,cobalt facilitates the reduction of iron cations within PBFCN_(0.1),leading to the formation of CoFe alloy *** formation is accompanied by a cation exchange process,wherein,with the increase in temperature,partial cobalt ions are substituted by ***,Co doping significantly enhance the electrical conductivity due to the stronger covalency of the Cosingle bondO bond compared with Fesingle bondO bond.A single cell with the configuration of PBFCN_(0.1)-Sm_(0.2)Ce_(0.8)O_(1.9)(SDC)|SDC|Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3−δ)(BSCF)-SDC achieves an extremely low polarization resistance of 0.0163Ωcm^(2)and a high peak power density of 740 mW cm^(−2)at 800℃.The cell also shows stable operation for 120 h in H_(2)with a constant current density of 285 mA cm^(−2).furthermore,employing wet C_(2)H_(6)as fuel,the cell demonstrates remarkable performance,achieving peak power densities of 455 mW cm^(−2)at 800℃and 320 mW cm^(−2)at 750℃,marking improvements of 36%and 70%over the cell with(PrBa)_(0.95)(Fe_(0.9)Nb_(0.1))_(2)O_(5+δ)(PBFN)-SDC at these respective *** discovery emphasizes how temperature influences alloy nanoparticles exsolution within doped layered perovskite ferrites materials,paving the way for the development of high-performance ceramic fuel cell anodes.

关键词： Solid oxide fuel cell Anode Ethane fuel Nanoparticle Exsolution Layered perovskite Ferrites

Hybrid pseudocapacitance/co-intercalation mechanisms of TiO2/graphite anodes for rapid sodium-ion storage

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Rare Metals 2024年第10期43卷 5427-5434页

作者： Ze-Rui Yan Da-fu Tang Bin-Hao Wang Xiao-juan Huang Xia Zou Si-Cheng Fan Yan wu Tong Shu Qiu-Long Wei Department of Materials Science and Engineering College of MaterialsFujian Key Laboratory of Surface and Interface Engineering for High Performance MaterialsXiamen University

Developing anode materials with high specific/volumetric capacities,high-rate capability,long-term cycles and low cost is significant for advanced sodium-ion ***,we report the hybrid TiO2/graphite （TiO2/G） anodes for fast （dis）charging sodium-ion *** advantage of the rapid pseudocapacitive surface-redox on anatase TiO2nanoparticles （NPs） and fast[Na（diglyme）x]+co-intercalation into graphite,the hybrid anodes display excellent rate ***,the TiO2NPs are able to fill into the interspaces among graphite flakes and the graphite provides continuous electron pathways,which largely boosts the volumetric capacities and rate *** from the synergistic effects,

关键词： Titanium dioxide

A transcriptional cascade involving BBX22 and HY5 finely regulates both plant height and fruit pigmentation in citrus

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Journal of Integrative Plant Biology 2024年第8期66卷 1752-1768页

作者： Jialing fu Li Liao Jiajing Jin Zhihao Lu juan Sun Lizhi Song Yue Huang Shengjun Liu Ding Huang Yuantao Xu Jiaxian He Bin Hu Yiqun Zhu Fangfang wu Xia Wang Xiuxin Deng Qiang Xu National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070P.R.China Hubei Hongshan Laboratory Wuhan 430070P.R.China Science and Technology Innovation Research Center of Majia Pomelo Shangrao 334000China

Dwarfing is a pivotal agronomic trait affecting both yield and *** species exhibit substantial variation in plant height,among which internode length is a core ***,the molecular mechanism governing internode elongation remains ***,we unveiled that the transcriptional cascade consisting of B-BOX DOMAIN PROTEIN 22(BBX22)and ELONGATED HYPOCOTYL 5(HY5)finely tunes plant height and internode elongation in ***-of-function mutations of BBX22 in an early-flowering citrus(Citrus hindsii“SJG”)promoted internode elongation and reduced pigment accumulation,whereas ectopic expression of BBX22 in SJG,sweet orange(***),pomelo(***)or heterologous expression of BBX22 in tomato(Solanum lycopersicum)significantly decreased internode ***,exogenous application of gibberellin A3(GA3)rescued the shortened internode and dwarf phenotype caused by *** experiments revealed that BBX22 played a dual role in regulation internode elongation and pigmentation in *** the one hand,it directly bound to and activated the expression of HY5,GA metabolism gene(GA2 OXIDASE 8,GA2ox8),carotenoid biosynthesis gene(PHYTOENE SYNTHASE 1,PSY1)and anthocyanin regulatory gene(Ruby1,a MYB DOMAIN PROTEIN).On the other hand,it acted as a cofactor of HY5,enhancing the ability of HY5 to regulate target genes ***,our results reveal the critical role of the transcriptional cascade consisting of BBX22 and HY5 in controlling internode elongation and pigment accumulation in *** the crosstalk regulatory mechanism between internode elongation and fruit pigmentation provides key genes for breeding of novel types with both dwarf and health-beneficial fortification in citrus.

关键词： anthocyanins BBX22 carotenoids citrus HY5 internode elongation plant height

Fluctuations and patterns of desert rodent communities under human disturbance:fluctuating tendency and sensitive response of their population

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Frontiers in Biology 2008年第1期3卷 89-100页

作者： xiaodong wu heping fu College of Ecology and Environmental Science Inner Mongolia Agricultural UniversityHohhot 010019China

The four kinds of sites under different kinds of human disturbances,i.e.a farmland area,a rotational-grazing area,an over-grazing area and a prohibited-grazing area,were selected in the typical region of the Alashan Desert of Inner Mongolia from April to October in 2002,2003 and 2004 *** fluctuating tendency of rodent communities and the sensitive response of their populations were studied using mark-recapture and trap-day *** four kinds of mark-recapture samples and line samples were taken in different human disturbance *** area of the mark-recapturing sample was 0.95 hm2 and that of the line sample was 10 *** samples were collected every month in the mark-recapturing sites for four consecutive days and in line sites in April,July and October every *** variable matrix was composed of the numbers of captured rodents of the rodent *** sensitive response of the populations in the communities was analyzed with principal component analysis(PCA).Results showed that there were different types of rodent communities under different kinds of human disturbance on two scales in three *** each scale,there were large differences in both the number of species and the number of main population in the rodent communities under different kinds of human disturbance on the farmland area and over-grazing area *** results of PCA showed that the sensitive response of the populations of the communities was significantly different under different kinds of human disturbance on the two scales in the three *** barabensis was the most sensitive on the farmland area,there were no differences in sensitive response of the various rodents on the rotational-grazing area,and Dipus sagitta and Phodopus roborovskii were the most sensitive in the over-grazing area.

关键词： rodent community human disturbance population sensitive desert

Effects of levonorgestrel-quinestrol(EP-1)treatment on Mongolian gerbil wild populations:a case study

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Integrative Zoology 2013年第3期8卷 277-284页

作者： heping fu Jinwei ZHANG Dazhao SHI xiaodong wu China Agricultural University BeijingChina Inner Mongolia Agricultural University HohhotChina Key Laboratory of Prataculture and Grassland Resources of Education Ministry HohhotChina

Rodent pest population outbreaks occur frequently in grassland ecosystems in northern *** Mongolian gerbil(Meriones unguiculatus)is a dominant pest rodent which is distributed across the semi-desert grasslands of Inner Mongolia,*** 2009,we studied the contraceptive effect of levonorgestrel-quinestrol(EP-1),concentration 50 ppm,on a wild Mongolian gerbil *** one-off contraceptive treatment was compared with a control group using a semi-monthly live trapping method in the Ordos Semi-desert Grassland Region of Inner *** results show that juveniles were not recruited in spring in the treatment *** of juveniles in the control and treatment groups showed significant semi-monthly differences from spring to summer(one-way ANOVA,F_(2,14)=7.53,P<0.05).Between both groups,annual fluctuations of juvenile and total population densities were significantly different respectively(F_(2,14)=4.64,P<0.05;F_(2,18)=7.72,P<0.05).The contraceptive EP-1 delayed the normal reproductive pattern of Mongolian gerbil *** suppressed birth rates of gerbil populations,reduced their densities,and changed their age *** period of EP-1 baiting should be extended but it could be an ideal method for controlling Mongolian gerbil populations during each breeding season.

关键词： EP-1 fertility control Mongolian gerbil(Meriones unguiculatus) population structure population dynamic wild population

典型草原两种优势鼠种体表寄生蚤群落的影响因素

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中国草地学报 2024年第9期46卷 96-104页

作者：吴馨羽明明袁帅付和平那顺孟克张恒袁伟格根塔娜萨仁高娃武晓东内蒙古农业大学草业学院内蒙古呼和浩特010011 草地啮齿动物生态学与鼠害控制自治区高等学校重点实验室内蒙古呼和浩特010011 锡林郭勒盟东乌珠穆沁旗草原站内蒙古锡林郭勒026300 锡林郭勒盟正镶白旗草原工作站内蒙古锡林郭勒013800 内蒙古锡林郭勒盟草原工作站内蒙古锡林浩特026000

寄生蚤是多种流行病的媒介,对全球生态和公共卫生安全具有特殊的重要性。布氏田鼠和达乌尔黄鼠是典型草原常见的啮齿动物,是多种蚤类的宿主,也是鼠疫菌的主要携带者。本研究于2021年5月、7月、9月和2022年5月分别在内蒙古自治区锡林郭... 详细信息

寄生蚤是多种流行病的媒介,对全球生态和公共卫生安全具有特殊的重要性。布氏田鼠和达乌尔黄鼠是典型草原常见的啮齿动物,是多种蚤类的宿主,也是鼠疫菌的主要携带者。本研究于2021年5月、7月、9月和2022年5月分别在内蒙古自治区锡林郭勒盟东乌珠穆沁旗和正镶白旗对布氏田鼠和达乌尔黄鼠体表寄生蚤进行群落监测,分析两种优势鼠种寄生蚤群落结构与群落多样性的影响因素,以期为鼠疫防控提供参考依据。结果显示,布氏田鼠体表寄生蚤共2科5属8种,其中光亮额蚤、近代新蚤东方亚种和原双蚤田野亚种是常见种;达乌尔黄鼠体表寄生蚤共3科3属5种,其中方形黄鼠蚤蒙古亚种是优势种,阿巴盖新蚤和光亮额蚤是常见种。布氏田鼠和达乌尔黄鼠体表寄生蚤群落多样性指数存在季节差异。布氏田鼠体表寄生蚤群落多样性指数与体重呈极显著正相关(Shannon-Wiener多样性指数:r=0.174,P<0.001;Pielou均匀度指数:r=0.164,P<0.001),达乌尔黄鼠体表寄生蚤群落多样性指数与平均温度呈极显著负相关(Shannon-Wiener多样性指数:r=−0.430,P=0.004;Pielou均匀度指数:r=−0.425,P=0.004)。综上所述,环境因素和宿主的生物学因素是导致寄生蚤群落多样性特征变化的影响因素。

关键词：布氏田鼠达乌尔黄鼠寄生蚤群落结构群落多样性

Niche characteristics of rodents by diverse disturbance in Alashan desert,Inner Mongolia,China

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Frontiers in Biology 2007年第4期2卷 456-462页

作者： fu heping wu xiaodong YANG Zelong College of Ecology and Environmental Science Inner Mongolia Agricultural UniversityHohhot 010019China

Four diverse disturbance types,namely,farmland,rotationally grazed grassland,overgrazed grassland and forbidden grazing grassland,were identified in the Alashan desert region of Inner *** were sampled in April,July and October in 2002 and 2003 using the trap-day *** spatial and temporal niches among the four disturbance types were assessed using the Shannon-Wiener niche breadth index and the Pianka niche overlap *** Shannon-Wiener niche breadth index was the highest for Allactaga sibirica and Meriones meridianus(0.925 and 0.908,respectively),intermediate for Cricetulus eversmanni,Phodopus roborovskii and Citellus dauricus(0.789,0.782 and 0.711,respectively),and lowest for Cardiocranius paradoxus(0.003).The Pianka niche overlap indices of six-paired species were the highest and varied from 0.900 to 1.000,suggesting their spatial niche overlapped almost ***,the spatial niche overlap index for Meriones unguiculatus,Cardiocranius paradoxus,and Salpingotus kozlovi was zero,thus indicating a complete absence of competition among *** addition,the tem-poral niche breadth and overlap indices varied greatly in rela-tion to disturbance types and *** level of temporal niche overlap in spring and autumn was low while in summer it was *** all disturbance types and for each season,the temporal niche overlap index of Meriones meridianus and Cricetulus barabansis was always highest but for Meriones unguiculatus and Salpingotus kozlovi always lowest.

关键词： rodent niche habitats disturbance desert Alashan