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siberian plants： untapped repertoire of bioactive endosymbionts

Frontiers in Biology 2018年第3期13卷 157-167页

作者： Syed Baker Svetlana V. Prudnikova: Tatiana Volova Laboratory of Biotechnology of New Materials Siberian Federal University 79 Svobodny pr. Krasnoyarsk 660041 Russia siberian Federal University School of Fundamental Biology and Biotechnology 79 Svobo-dny pr. Krasnoyarsk 660041 Russia Institute of Biophysics SB RAS Federal Research Center "Krasnoyarsk Science Center SB RAS " 50/50 Akademgorodok Krasnoyarsk660036 Russia siberian Federal University 79 Svobodny pr. Krasnoyarsk 660041 Russia

Endosymbionts are microorganisms present in all plant species, and constitute the subject of interest among the scientific community. These symbionts have gained considerable attention in recent years, owing to their emerging biological roles. Global challenges, such as antimicrobial resistance, treatment of infectious diseases such as HIV and tuberculosis, cancer, and many genetic disorders, exist. Endosymbionts can help address these challenges by secreting valueadded bioactive compounds with various activities. Herein, we describe the importance of plants inhabiting siberian niches. These plants are considered to be among the least studied organisms in the plant kingdom worldwide. Barcoding these plants can be of interest for exploring bioactive endosymbionts possessing myriad biological properties. A systematic survey of relevant scientific reports was conducted using the PubMed search engine. The reports were analyzed, and compiled to draft this review. The literature survey on siberian plants regarding endosymbionts included a few reports, since extremely few exploratory studies have been conducted on the plants in these regions. Studies on the endosymbionts of these plants are highly valuable, as they report potent endosymbionts possessing numerous biological properties. Based on these considerations, this review aims to create awareness among the global scientific community working on related areas. This review could provide the basis for barcoding novel endosymbionts of siberian plants and their ecological importance, which can be exploited in various sectors. The main purpose of this review is to create awareness of siberian plants, which are among the least studied organisms in the plant kingdom, with respect to endosymbionts, among the scientific community.

关键词： endosymbiont, endophyte, siberian plant, bioactive metabolite, novel compound

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Two pedogenic models for paleoclimatic records of magnetic susceptibility from Chinese and siberian loess

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Science China Earth Sciences 2008年第2期51卷 284-293页

作者： Paul HESSE Jiri CHLACHULA Department of Physical Geography Macquarie University NSW 2109 Australia Key Laboratory of Desert and Desertification Institute of Cold and Arid Regions Environmental and Engineering Chinese Academy of Sciences Lanzhou 730000 China

The magnetic susceptibility (MS) of Chinese loess showing a general proportional relationship to pedogenic grade has been widely recognized and used for reconstruction of paleoclimate by Quaternary scientists. The in-... 详细信息

关键词： siberian loess Chinese loess paleoclimate magnetic susceptibility magnetic mineralogy environmental magnetism

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Comparative transcriptome analysis identifies differentially expressed genes between normal and late-blooming siberian apricot

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Journal of Forestry Research 2019年第6期30卷 2277-2288页

作者： Zhe Wang Shuang Song Songbai Sheng Ju Tian Rongling Wu Xiaoming Pang Beijing Advanced Innovation Center for Tree Breeding by Molecular Design National Engineering Laboratory for Tree BreedingKey Laboratory of Genetics and Breeding in Forest Trees and Ornamental PlantsMinistry of EducationCenter for Computational BiologyCollege of Biological Sciences and BiotechnologyBeijing Forestry UniversityBeijing 100083People’s Republic of China Center for Computational Biology College of Biological Sciences and BiotechnologyBeijing Forestry UniversityBeijing 100083People’s Republic of China Inner Mongolia Hesheng Ecological Science and Technology Research Institute Huhhot 011517People’s Republic of China

Blooming date is an important trait in fruit tree *** several quantitative trait loci confirming blooming date were identified in Prunus spp.,the molecular mechanism underlying it remains *** from this,the transcriptomes of normal blooming and lateblooming siberian apricot(*** L.)flower buds were analyzed using RNA-seq technology.A total of 68,855 unigenes were de novo assembled,among which 1204 were differentially expressed between normal and late *** ontology enrichment analysis revealed that biological processes were enriched with metabolic *** catalytic-related gene transcripts between the two types of blooming were significantly changed in the molecular *** Encyclopedia of Genes and Genomes pathway analysis showed that 156 genes were successfully annotated and 75 pathways *** for gibberellin biosynthesis were up-regulated in normal blooming,whereas abscisic acid degradation-related genes were also up-regulated in normal ***,circadian rhythms related genes including EARLY FLOWERING 4,LATE ELONGATED HYPOCOTYL and CIRCANDIAN CLOCK ASSOCIATED1 were all up-regulated in normal blooming,indicating that circadian rhythms have a very important role in controlling blooming ***,zinc finger protein CONSTANS-LIKE 12 was blasted onto the quantitative trait loci region on linkage group 4 in ***,changes in the abundance of key flowering genes such as SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1,FLOWERING LOCU T,LEAFY and FLOWERING LOCUS C were not significantly different,indicating that further investigation should explore the function of these genes on blooming *** outcomes of this study will provide a valuable platform for further research on the molecular mechanism of blooming date in Prunus.

关键词： Blooming date Differentially expressed genes(DEGs) Flowering time siberian apricot Transcriptome

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Effects of deforestation on microbial diversity in a siberian larch(Larix sibirica) stand in Mongolia

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Journal of Forestry Research 2019年第5期30卷 1885-1893页

作者： Jun Won Kang Yeong Dae Park Division of Forest Tree Improvement National Institute of Forest ScienceSuwonGyeonggi 16631Republic of Korea Department of Forest Resources Daegu UniversityGyeongbuk 38453Republic of Korea

For evaluating microbial community changes in a siberian larch stand disturbed by forest fire or clearcutting,357 clones were randomly selected and sequenced using a culture-independent approach and 16S rRNA sequencing to characterize the bacterial composition and diversity from the different disturbed siberian larch ***,the burned larch stand had an increase in the relative amounts of b-proteobacteria and Firmicutes and a decrease in Acidobacteria,while Gemmatimonadetes increased Verrucomicrobia decreased in the harvested larch *** diversity and richness were higher in the undisturbed larch stand than the disturbed(burned or clear-cut)larch stands,and the influence of clear-cutting was more negative than that of the forest *** study indicates that evaluating the microbial diversity of undisturbed,burned,and clear-cutting siberian larch stands provides information about the impact of forest disturbances on soil microbial communities,which may be helpful for understanding and evaluating soil health and devising reafforestation strategies for larch.

关键词： Forest fire Forest health Harvest Microbial diversity Reafforestation siberian Larch(Larix sibirica) Soil microbiome

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Impacts of the Autumn Arctic Sea Ice on the Intraseasonal Reversal of the Winter siberian High

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Advances in Atmospheric Sciences 2019年第2期36卷 173-188页

作者： Zhuozhuo L Shengping HE Fei LI Huijun WANG Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences Climate Change Research Center Chinese Academy of Sciences University of Chinese Academy of Sciences Geophysical Institute University of Bergen and Bjerknes Centre for Climate Research NILU-Norwegian Institute for Air Research Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster Ministry of Education Nanjing University of Information Science and Technology

During 1979–2015, the intensity of the siberian high(SH) in November and December–January(DJ) is frequently shown to have an out-of-phase relationship, which is accompanied by opposite surface air temperature and circulation *** analyses indicate that the autumn Arctic sea ice is important for the phase reversal of the SH. There is a significantly positive(negative) correlation between the November(DJ) SH and the September sea ice area(SIA) anomalies. It is suggested that the reduction of autumn SIA induces anomalous upward surface turbulent heat flux(SHF), which can persist into November, especially over the Barents Sea. Consequently, the enhanced eddy energy and wave activity flux are transported to mid and high latitudes. This will then benefit the development of the storm track in northeastern Europe. Conversely, when downward SHF anomalies prevail in DJ, the decreased heat flux and suppressed eddy energy hinder the growth of the storm track during DJ over the Barents Sea and Europe. Through the eddy–mean flow interaction, the strengthened(weakened)storm track activities induce decreased(increased) Ural blockings and accelerated(decelerated) westerlies, which makes the cold air from the Arctic inhibited(transported) over the siberian area. Therefore, a weaker(stronger) SH in November(DJ) occurs downstream. Moreover, anomalously large snowfall may intensify the SH in DJ rather than in November. The ensemble-mean results from the CMIP5 historical simulations further confirm these connections. The different responses to Arctic sea ice anomalies in early and middle winter set this study apart from earlier ones.

关键词： siberian high Arctic sea ice storm track phase reversal

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The use of artificial nest boxes by siberian flying squirrels (Pteromys volans) in South Korea

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Journal of Forestry Research 2019年第3期30卷 1131-1137页

作者： Jong-U Kim Woo-shin Lee Eun-Jae Lee Department of Forest Sciences Seoul National University Seoul 08826Republic of Korea Urban Planning Research Division Daejeon Sejong Research InstituteDaejeon 34863Republic of Korea

In this study, we examined the use of artificial nest boxes by siberian flying squirrels (Pteromys volans) in three coniferous and mixed forests in Gangwon Province, South Korea. Six hundred and twelve boxes with different sized entry holes (ranging from 3 to 7 cm in diameter) were placed in the forests between 2004 and 2009. Pteromys volans used nine boxes in the coniferous forests and two boxes in the mixed forests. The squirrels only used boxes with entrance holes measuring 3.5, 4, and 5 cm in diameter, showing a strong and moderate preference for boxes with 5 and 4-cm holes, respectively, and a strong avoidance for boxes with 3- and 7-cm holes. Therefore, we suggest placing artificial nest boxes with entrance holes 5 cm in diameter to encourage breeding activity. Most nests made in the artificial boxes were composed of fibrous materials from woody vines. We recommend placing artificial nest boxes with holes of 5-cm diameter in coniferous forests, which support dense populations of P. volans, to survey whether this approach would positively affect the breeding habits and population maintenance of this species.

关键词： Artificial nest box Coniferous forests Nest materials siberian flying squirrel Woody vines

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RAISING siberian TIGERS IN CAPTIVTTY IN NORTHEAST CHINA

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Journal of Northeast Forestry University 1990年第1期1卷 72-78页

作者： Liu XinchenBreeding Center of Fetidac Animals. Hcr.gdaohczi. Heilongjiang Province. P R China Breeding Center of Fetidae Animals Hengdaohezi Heilongjiang Province P. R. China

The Breeding Center of Felidac Animals was founded in *** in *** paper resents the methods and observauons of practices in feeding,mating,breeding,study and management of a captive population of siberian tigers at the *** the es-tablishment of the program,the initial population of 5 males and 15 females has been increased to *** the past 3 years.37 cubs were born and 28 *** averagc litter size was 2.6 in 1988and 2.8 in *** of feeding mating and raising are continualluy modified according to obser-vations,experimental comparisons and program *** program templ to conserve and renaturalize this rare and preeious species.

关键词： Endangered species. siberian tiger. Species conservation

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Enhancement of Winter Arctic Warming by the siberian High over the Past Decade

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Atmospheric and Oceanic Science Letters 2015年第5期8卷 257-263页

作者： FENG Chuan WU Bing-Yi Chinese Academy of Meteorology Sciences

In recent decades the Arctic surface air temperature(SAT) in autumn has been increasing steadily. In winter, however, instead of a linear trend, the Arctic SAT shows an abrupt change that occurred in 2004. During the years from 1979 to 2003, the first principle component(PC1) of winter Arctic SAT remains stable, and no significant increasing trend is detected. However, the PC1 changes abruptly from negative to positive phase in the winter of 2004. The enhanced siberian high may have contributed to this abrupt change because the temporal evolution of Arctic temperature correlates significantly with sea level pressure variation in the northern Eurasian continent, and the atmospheric circulation anomaly related to the siberian high from 2004 to 2013 favors a warmer Arctic. With the help of the meridional wind anomaly around the siberian high, warmer air is transported to the high latitudes and therefore increases the Arctic temperature.

关键词： Arctic warming siberian high abrupt change of clim

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Cenomanian-Turonian Foraminiferal Zones of West siberian Province and Their Correlation with Canadian Province

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Open Journal of Geology 2017年第8期7卷 1176-1187页

作者： V. M. Podobina Tomsk State University Tomsk Russia

Data on Late Cenomanian and Early Turonian foraminiferal assemblages in the northern palaeo biogeographical district of the West siberian province are summarized in the paper. In addition, the section of borehole 1016 of the Parusovaya area located in the far north of the province is considered. New information on the foraminiferal zones of this stratigraphic level along with the previously known sections of the Tazovskaya, Purpeiskaya, Van-Eganskaya areas provided an opportunity to carry out a correlation of these zones between the West siberian and the Canadian provinces (Western Canada, Northern Alaska). The West siberian Late Cenomanian Trochammina wetteri tumida, Verneuilinoides kansasensis and the Early Turonian Gaudryinopsis angustus foraminiferal zones have their analogues as similar zones in the Canadian province. Due to the provided correlation of the micropalaeontological (foraminiferal) zones, their age in the West siberian province has been clarified. Besides, similarity of the conditions of dwelling within the boundaries of the entire Arctic palaeobiogeographical realm has been observed.

关键词： Foraminifera Upper Cenomanian Lower Turonian Zones Correlation West siberian Canadian Provinces

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High Body Mass Has No Effect on Cellular and Innate Immunity in siberian Hamsters (<i>Phodopus sungorus</i>)

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Natural Science 2017年第7期9卷 231-240页

作者： Yufen Tian Mengmeng Chen Xiangdi Cui Min Du Qiuli Yu Xiaokai Hu Deli Xu Library Qufu Normal University Qufu China College of Life Sciences Qufu Normal University Qufu China

Body mass is considered to be related with immune function in animals. Our aim was to test the hypothesis that cellular and innate immunity would be suppressed in high body mass of siberian hamsters (Phodopus sungorus). Six heavier (high body mass, HBM) and six lighter (low body mass, LBM) hamsters were selected from 28 male hamsters. Body mass, body fat mass, wet spleen mass and blood glucose levels were significantly higher in the HBM group than in the LBM group. However, phytohaemagglutinin response, serum bacteria killing capacity and white blood cells did not differ between the two groups, suggesting cellular and innate immunity was?not impaired in high body mass of hamsters. There was no correlation between cellular, innate immunity and body mass, body fat mass and glucose levels, suggesting cellular and innate immunity was?not suppressed by higher body mass, body fat mass and glucose levels. In summary, cellular and innate immunity was not impaired in the HBM hamsters compared with the LBM hamsters.

关键词： Phytohaemagglutinin Response Bacteria Killing Capacity Body Fat Glucose siberian Hamsters (Phodopus sungorus)

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