检索结果-南通市图书馆

Journal of Arid Land 2019年第5期11卷 754-763页

作者： LI Zhijun ZHANG Xiao ZHENG Yaqiong QIU Aijun ZHANG Ling College of Life Sciences Tarim UniversityAral 843300China key laboratory of protection and utilization of biological resource in tarim basin Xinjiang Production&Construction GroupsAral 843300China

The aims of this study were to explore the interspecific differences of Populus euphratica *** Populus pruinosa Schrenk populations and the intraspecific differences of males and females within the same species in flowering phenological traits,and the effects of temperatures on flowering phenological traits in different growth years(2001–2003 and 2013–2015).The results showed that *** population flowered earlier than *** ***,flowering phenological period of population,number of days of flowering phenological period per population,number of days of flowering phenological period per plant and average number of days of flowering period per plant of *** population were less than those of *** *** differences between male and female within the same species indicated that the flowering periods of males *** and *** populations were earlier than those of female *** both species,flowering phenological traits were significantly and negatively correlated with the average temperatures in previous ten days,previous one month and previous three months of *** species are sensitive to temperature changes and adjust to the changes by advancing the start of flowering and prolonging the duration of flowering.

关键词： Populus euphratica Oliv. Populus pruinosa Schrenk flowering phenology temperature flowering synchrony

Morphological and physiological differences in heteromorphic leaves of male and female Populus euphratica Oliv.

在线全文

学校读者我要写书评

暂无评论

Journal of Arid Land 2022年第12期14卷 1456-1469页

作者： LI Xiu ZHAI Juntuan LI Zhijun College of Life Sciences and Technology Tarim UniversityAlar 843300China key laboratory of protection and utilization of biological resources in tarim basin of Xinjiang Production&Construction Corps Alar 843300China

Leaf traits can directly reflect the adaptation strategies of plants to the ***,there is limited knowledge on the adaptation strategies of heteromorphic leaves of male and female Populus euphratica *** response to individual developmental stages(i.e.,diameter class)and canopy height *** this study,morphological and physiological properties of heteromorphic leaves of male and female *** were *** showed that both male and female *** exhibited increased leaf area(LA),leaf dry weight(LDW),leaf thickness(LT),net photosynthetic rate(P_(n)),transpiration rate(T_(r)),stomatal conductance(g_(s)),proline(Pro),and malondialdehyde(MDA)concentration,decreased leaf shape index(LI)and specific leaf area(SLA)with increasing diameter and canopy *** water potential(LWP)increased with increasing diameter,LWP decreased significantly with increasing canopy height in both sexes,and carbon isotope fraction(δ^(13)C)increased significantly with canopy height in both sexes,all of which showed obvious resistance ***,males showed greater LA,LT,P_(n),T_(r),and Pro than females at the same canopy height,and males showed significantly higher LA,SLA,LT,P_(n),T_(r),g_(s),and MDA,but lower LWP and δ_(1)3C than females at the same canopy height,suggesting that male *** have stronger photosynthetic and osmoregulatory abilities,and are sensitive to water ***,difference between male and female *** is closely related to the increase in individual diameter class and canopy *** summary,male plants showed higher stress tolerance than female plants,and differences in P_(n),g_(s),T_(r),Pro,MDA,δ_(13)C,and LWP between females and males were related to changes in leaf morphology,diameter class,and canopy *** results of this study provide a theory for the differences in growth adaptation strategies during individual development of ***.

关键词： arid area canopy height dioecious plants morphology physiological characteristics

Impacts of Defoliation on Morphological Characteristics and Non-Structural Carbohydrates of Populus talassica × Populus euphratica Seedlings

在线全文

学校读者我要写书评

暂无评论

Phyton-International Journal of Experimental Botany 2024年第7期93卷 1689-1703页

作者： Mengxu Su Zhanjiang Han Zhen Zhao Xiaofeng Wu Jiaju Wu College of Life Science and Technology Tarim UniversityXinjiang Production and Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim BasinAlar843300China Agricultural Science Research Institute of the First Division Xinjiang Production and Construction CorpsAlar843300China

Leaves are important‘source’organs that synthesize organic matter,providing carbon sources for plant ***,we used Populus talassica×Populus euphratica,the dominant species in ecological and timber forests,to simulate carbon limitation through artiﬁcial 25%,50%,and 75%defoliation treatments and explore the effects on root,stem,and leaf morphology,biomass accumulation,and carbon allocation *** the 60th d after treat-ment,under 25%defoliation treatment,the plant height,speciﬁc leaf weight,root surface area and volume,and concentrations of non-structural carbohydrates in stem and root were signiﬁcantly increased by 9.13%,20.00%,16.60%,31.95%,5.12%,and 9.34%,respectively,relative to the *** was no signiﬁcant change in the growth indicators under 50%defoliation treatment,but the concentrations of non-structural carbohydrates in the leaf and stem signiﬁcantly decreased,showing mostly a negative correlation between *** opposite was observed in the *** 75%defoliation treatment,the plant height,ground diameter,leaf number,single leaf area,root,stem,and total biomass were signiﬁcantly reduced by 14.15%,10.24%,14.86%,11.31%,11.56%,21.87%,and 16.82%,respectively,relative to the *** concentrations of non-structural carbohydrates in various organs were signiﬁcantly reduced,particularly in the consumption of the starch concentrations in the stem and *** results indicated that carbon allocation strategies can be adjusted to increase the con-centration of non-structural carbohydrates in root and meet plant growth needs under 25%and 50%***,75%defoliation signiﬁcantly limited the distribution of non-structural carbohydrates to roots and stems,reduced carbon storage,and thus inhibited plant ***-induced carbon limitation altered the carbon allocation pattern of ***×***,and the relationship between carbon reserves in roots and tree growth recovery after defoliation was *** study

关键词： Populus talassica×Populus euphratica defoliation carbon limitation carbon allocation non-structural carbohydrates

Short-term transcriptomic responses of Populus euphratica roots and leaves to drought stress

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Forestry Research 2021年第2期32卷 841-853页

作者： Peipei Jiao Zhihua Wu Xu Wang Zhenbo Jiang Yanqin Wang Hong Liu Rui Qin Zhijun Li College of Life Sciences Tarim UniversityAlar 843300Xinjiang ProvincePeople’s Republic of China key laboratory of biological resource protection and utilization of tarim basin Xinjiang Production and Construction GroupAlar 843300Xinjiang ProvincePeople’s Republic of China Hubei Provincial key laboratory for protection and Application of Special Plant Germplasm in Wuling Area of China&key laboratory of State Ethnic Affairs Commission for biological Technology College of Life SciencesSouth-Central University for NationalitiesWuhan 430074Hubei ProvincePeople’s Republic of China

Populus euphratica Oliv.,the Euphrates poplar,is the tallest tree species in the arid desert areas of Northwest *** of its drought-resistance genes is valuable to increase understanding of drought resistance ***-seq of leaves and roots under drought simulation by 25%polyethylene glycol-6000(PEG 6000)were performed at 0,4,and 12 *** and roots responded differently to drought via differentially upregulated and downregulated genes;more genes were downregulated than upregulated in both leaves and ***,these differentially expressed genes were enriched in different GO terms and KEGG *** example,GO term‘response to organic substance’and KEGG pathway‘nitrogen metabolism’were enriched for drought-stressed leaves,while GO term‘cell wall organization or biogenesis’and KEGG pathway‘zeatin biosynthesis’were enriched for drought-stressed *** enrichment of the GO term‘enzyme linked receptor protein signalling pathway’in both leaf and root drought responses suggests that these tissues may also have similar ***,roots under drought stress for four hs responded by activating programed cell *** KEGG pathway‘plant hormone signal transduction’was detected for 4-and 12-h droughtstressed leaves and 12-h drought-stressed roots,suggesting that plant hormone signal transduction plays an important role in both roots and *** enrichment of upregulated and downregulated genes for leaves and roots reflect differentially regulatory mechanisms of response to drought stress via different biological processes such as the regulation of photosynthesis and auxin signalling pathway in leaves,and the regulation of defence response and water homeostasis in *** candidate genes,including transcription factors,protein kinase,transporter,late embryogenesis abundant protein and mannitol dehydrogenase,were further selected to determine their response to drought using *** results show that the expression patte

关键词： Drought stress RNA-seq Populus euphratica qRT-PCR

Species-specific responses to drought,salinity and their interactions in Populus euphratica and *** seedlings

在线全文

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2020年第5期13卷 563-573页

作者： Lei Yu Haojie Dong Zhijun Li Zhanjiang Han Helena Korpelainen Chunyang Li Department of Ecology College of Life and Environmental SciencesHangzhou Normal UniversityHangzhou 311121China key laboratory of protection and utilization of biological resources in tarim basin of Xinjiang College of Life SciencesTarim UniversityAlar 843300China Department of Agricultural Sciences Viikki Plant Science CentrePO Box 27FI-00014 University of HelsinkiFinland

Aims Drought and salinity are severe abiotic stress factors,which limit plant growth and productivity,particularly in desert *** this study,we employed two desert poplars,Populus euphratica Oliver and Populus pruinosa Schrenk seedlings,to compare their tolerance to drought,salinity and combined *** We investigated species-specific responses of *** and *** in growth,photosynthetic capacity and pigment contents,nonstructural carbohydrate concentrations,Cl−allocation,osmotic regulation and the accumulation of reactive oxygen species(ROS)under drought,salinity and the combined *** Findings Populus pruinosa exhibited greater growth inhibitory effects,photosynthesis decline,stomatal closure and ROS accumulation,and lower antioxidant enzyme activities and osmotic regulation compared with *** under drought,salinity and especially under their combined *** the other hand,salt-stressed *** plants restricted salt transportation from roots to leaves,and allocated more Cl−to coarse roots and less to leaves,whereas salt-stressed *** allocated more Cl−to *** was shown that there is species-specific variation in these two desert poplars,and *** suffers greater negative effects compared with *** under drought,salinity and especially under the combined ***,in ecological restoration and afforestation efforts,species-specific responses and tolerances of these two poplar species to drought and salinity should be considered under climate change with increasing drought and soil salinity developing.

关键词： desert poplars drought and salinity Cl−allocation and transportation coarse and fine roots tolerance

Ecophysiological responses of two poplar species to intraspecific and interspecific competition under different nitrogen levels

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2020年第6期13卷 693-703页

作者： Yan Li Jieyu Kang Zhijun Li Helena Korpelainen Chunyang Li Ecological Security and protection key laboratory of Sichuan Province Mianyang Normal UniversityMianyang 621000China Department of Ecology College of Life and Environmental SciencesHangzhou Normal UniversityHangzhou 311121China key laboratory of protection and utilization of biological resources in tarim basin of Xinjiang College of Life SciencesTarim UniversityAlar 843300China Department of Agricultural Sciences Viikki Plant Science CentreUniversity of HelsinkiPO Box 27FI-00014 HelsinkiFinland

Aims Populus deltoides and *** are widely used in China as major forestry *** present,little is known about their responses to nitrogen(N)deficiency when grown in monocultures or mixed *** aim of this investigation was to analyze the growth,and morphological and physiological responses of *** and *** to different N levels under competition *** We employed two Populus species(*** and ***)to discover how N deficiency affects plant traits under different competition types(***×***,intraspecific competition;***×***,intraspecific competition;***×***,interspecific competition).Potted seedlings were exposed to two N levels(normal N,N deficiency),and nitrogen-and competition-driven differences in growth,morphology and physiology were *** Findings Under normal N conditions,interspecific competition significantly decreased the total root weight,root mass fraction(RMF),root–shoot ratio(R/S)and carbon/nitrogen ratio(C/N),and increased the leaf dry weight,leaf mass fraction and total leaf area of *** compared with intraspecific *** same conditions significantly affected the growth and morphological variables of ***,except for the dry weight of fine roots,R/S,specific leaf area,RMF,total nitrogen content and C/N compared with intraspecific *** addition,chlorophyll a(Chla),total chlorophyll(Tchl),carotenoid contents(Caro)and the carbon isotope composition(δ13C)of *** were significantly lower in interspecific competition than in intraspecific competition,but no difference was detected in *** effects of N deficiency on *** under intraspecific competition were stronger than under interspecific *** contrast,the effects of N deficiency on *** between intraspecific and interspecific competition were not significantly *** results s

关键词： competition nutrient resorption efficiency photosynthesis capacity competition intensity index N deficiency

Origins,timing and introgression of domestic geese revealed by whole genome data

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2023年第3期14卷 936-949页

作者： Junhui Wen Haiying Li Huie Wang Jincheng Yu Tao Zhu Jinxin Zhang Xinghua Li Zhihua Jiang Zhonghua Ning Lujiang Qu Department of Animal Genetics and Breeding National Engineering Laboratory for Animal BreedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijingChina College of Animal Science Xinjiang Agricultural UniversityUrumqiChina Xinjiang Production&Construction Corps key laboratory of protection and utilization of biological resources in tarim basin AlarXinjiangChina College of Animal Science Tarim UniversityAlarXinjiangChina Liaoning Academy of Agricultural Sciences ShenyangChina Department of Animal Sciences Washington State UniversityPulmanUSA

Background Geese are among the most important poultry species in the *** current generally accepted hypothesis is that the European domestic geese originated from greylag geese(Anser anser),and Chinese domestic geese have two origins,most of which originated from swan geese(Anser cygnoides),and the Yili goose originated from greylag *** explain the origin and demographic history of geese,we selected 14 goose breeds from Europe and China and wild populations of swan and greylag geese,and whole genome sequencing data were obtained for 74 *** Population structure analysis and phylogenetic trees showed that the wild ancestor of Chinese domestic geese,except for Yili,is the swan geese,and the wild ancestor of Chinese Yili and European domestic geese is greylag *** of the demographic history suggests that the domestication of Chinese geese occurred~3499 years ago and that of the European geese occurred~7552 years ***,gene flow was observed between domestic geese and their wild *** of introgression showed that Yili geese had been introgressed by Chinese domestic geese,and the body size of Yili geese may be influenced by introgression events of some growthrelated genes,including *** Our study provides evidence for the origin of geese at the genome-wide level and advances the understanding of the history of goose domestication and the traits affected by introgression events.

关键词： Domestication Goose Introgression Phylogeny

Study on Alkaloids in Fructus Hordei Germinatus

在线全文

学校读者我要写书评

暂无评论

Medicinal Plant 2018年第6期9卷 19-22页

作者： Jianheng GUO Guozhu LI Qingyan MENG Jizhong ZHANG School of Pharmacy Southwest Minzu University Alar First Division of Institute for Food and Drug Control key laboratory of resource protection and utilization of tarim basin Xinjiang Production & Construction Ethnic Medicine Institute Southwest Minzu University

[Objectives]To isolate and analyze alkaloids in Fructus Hordei Germinatus.[Methods]The alkaloids in the Fructus Hordei Germinatus were extracted by ultrasonic technology,and analyzed by the ultra-performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS) technique.[Results] According to the mass spectrometry information,compared with the literature reports,the possible structures of seven alkaloids in the Fructus Hordei Germinatus could be *** 1,2 and 3 were organic amine alkaloids,respectively tyramine and N-methyltyramine,hordenine,compounds 4,5,6 and 7 were indole alkaloids,respectively,tryptamine,gramine,harmine,and *** alkaloids in the Fructus Hordei Germinatus were separated by preparative high performance liquid chromatography(p HPLC) technique,a compound was obtained and identified by UPLC-MS/MS and nuclear magnetic resonance(NMR) technique as hordenine.[Conclusions]This experiment is expected to lay a foundation for the development of alkaloids in the Fructus Hordei Germinatus.

关键词： Fructus Hordei Germinatus Alkaloids Ultra high performance liquid chromatography(UPLC) Mass spectrometer(MS) Preparative high performance liquid chromatography(pHPLC)

Plastid genome evolution of a monophyletic group in the subtribe Lauriineae(Laureae,Lauraceae)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant Diversity 2022年第4期44卷 377-388页

作者： Chao Liu Huan-Huan Chen Li-Zhou Tang Phyo Kay Khine Li-Hong Han Yu Song Yun-Hong Tan College of biological resource and Food Engineering Yunnan Engineering Research Center of Fruit WineQujing Normal UniversityQujingYunnan655011China key laboratory of Ecology of Rare and Endangered Species and Environmental protection(Ministry of Education) Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River BasinGuangxi Normal UniversityGuilinGuangxi541004China Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglaYunnan666303China Southeast Asia Biodiversity Research Institute Chinese Academy of SciencesYezinNay Pyi Taw05282Myanmar

Litsea,a non-monophyletic group of the tribe Laureae(Lauraceae),plays important roles in the tropical and subtropical forests of Asia,Australia,Central and North America,and the islands of the ***,intergeneric relationships between Litsea and Laurus,Lindera,Parasassafras and Sinosassafras of the tribe Laureae remain *** this study,we present phylogenetic analyses of seven newly sequenced Litsea plastomes,together with 47 Laureae plastomes obtained from public databases,representing six genera of the *** results highlight two highly supported monophyletic groups of Litsea *** is composed of 16 Litsea taxa and two Lindera *** 18 plastomes of these taxa were further compared for their gene structure,codon usage,contraction and expansion of inverted repeats,sequence repeats,divergence hotspots,and gene *** complete plastome size of newly sequenced taxa varied between 152,377 bp(Litsea auriculata)and 154,117 bp(Litsea pierrei).Seven of the 16 Litsea plastomes have a pair of insertions in the IRa(trnL-trnH)and IRb(ycf2)*** 18 plastomes of Litsea and Lindera taxa exhibit similar gene features,codon usage,oligonucleotide repeats,and inverted repeat *** codons with the highest frequency among these taxa favored A/T endings and each of these plastomes had nine divergence hotspots,which are located in the same *** also identified six protein coding genes(accD,ndhJ,rbcL,rpoC2,ycf1 and ycf2)under positive selection in Litsea;these genes may play important roles in adaptation of Litsea species to various environments.

关键词： Litsea Phylogenetic analysis Divergent hotspots Gene evolution

Significant genomic introgression from grey junglefowl(Gallus sonneratii)to domestic chickens(Gallus gallus domesticus)

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2024年第4期15卷 1482-1493页

作者： Xiurong Zhao Junhui Wen Xinye Zhang Jinxin Zhang Tao Zhu Huie Wang Weifang Yang Guomin Cao Wenjie Xiong Yong Liu Changqing Qu Zhonghua Ning Lujiang Qu National Engineering laboratory for Animal Breeding College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China key laboratory of protection and utilization of biological resources in tarim basin Xinjiang Production and Construction CorpsTarim UniversityAlar 843300China Beijing Municipal General Station of Animal Science Beijing 100107China Animal husbandry station of Fangchenggang FangchenggangGuangxi Province 538001China Animal Disease Prevention and Control Center of Fangchenggang FangchenggangGuangxi Province 538001China Beijing Agricultural Effect Poultry Industry Co. Ltd.Beijing 101100China Engineering Technology Research Center of Anti‑aging Chinese Herbal Medicine of Anhui Province Fuyang Normal UniversityFuyangAnhui 236037China

Background Chicken is one of the most numerous and widely distributed species around the world,and many studies support the multiple ancestral origins of domestic *** research regarding the yellow skin phenotype in domestic chickens(regulated by BCO2)likely originating from the grey junglefowl serves as crucial evidence for demonstrating the multiple origins of ***,beyond the BCO2 gene region,much remains unknown about the introgression from the grey junglefowl into domestic ***,in this study,based on wholegenome data of 149 samples including 4 species of wild junglefowls and 13 local domestic chicken breeds,we explored the introgression events from the grey junglefowl to domestic *** We successfully detected introgression regions besides BCO2,including two associated with growth trait(IGFBP2 and TKT),one associated with angiogenesis(TIMP3)and two members of the heat shock protein family(HSPB2 and CRYAB).Our findings suggest that the introgression from the grey junglefowl may impact the growth performance of ***,we revealed introgression events from grey junglefowl at the BCO2 region in multiple domestic chicken breeds,indicating a phenomenon where the yellow skin phenotype likely underwent strong selection and was ***,our haplotype analysis shed light on BCO2 introgression event from different sources of grey junglefowl into domestic chickens,possibly suggesting multiple genetic flows between the grey junglefowl and domestic *** In summary,our findings provide evidences of the grey junglefowl contributing to the genetic diversity of domestic chickens,laying the foundation for a deeper understanding of the genetic composition within domestic chickens,and offering new perspectives on the impact of introgression on domestic chickens.

关键词： BCO2 Domestic chickens Grey junglefowl Introgression