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中国科学院昆明植物研究所知识管理系统
Knowledge Management System of Kunming Institute of Botany,CAS
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0.05) between wild (AR = 4.651), semi-cultivated (AR = 5.091) and cultivated (AR = 5.132) populations of C. taliensis, which suggested that the genetic background of long-lived woody plant was not easy to be changed, and there were moderate high gene flow between populations. However, there was a significant difference (P < 0.05) between wild (AR = 5.9) and cultivated (AR = 7.1) populations distributed in the same place in Yun county, Yunnan province, which may result from the hybridization and introgression of species in the tea garden and anthropogenic damages to the wild population. The hypothesis of hybrid origin of C. grandibracteata was tested by morphological and microsatellites analyses. Compared with other species, the locules in ovary of C. grandibracteata are variable, which showed a morphological intermediate and mosaic. Except one private allele, Ninety-nine percent alleles of C. grandibracteata were shared with these of C. taliensis and C. sinensis var. assamica. And C. grandibracteata was nested in the cluster of C. taliensis in the UPGMA tree. Conclusively, our results supported the hypothesis of hybrid origin of C. grandibracteata partly. The speciation of C. grandibracteata was derived from hybridization and asymmetrical introgression potentially. It is possible that C. taliensis was one of its parents, but it still needs more evidences to prove that C. sinensis var. assamica was another 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Institute of Biology, Chinese Academy of Sciences","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=BASES&order=desc&&fq=dc.project.title_filter%3AChengdu%5C+Institute%5C+of%5C+Biology%2C%5C+Chinese%5C+Academy%5C+of%5C+Sciences"},{"jsname":"China Scholarship Council","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=BASES&order=desc&&fq=dc.project.title_filter%3AChina%5C+Scholarship%5C+Council"},{"jsname":"China Scholarship Council[201706380093]","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=BASES&order=desc&&fq=dc.project.title_filter%3AChina%5C+Scholarship%5C+Council%5C%5B201706380093%5C%5D"},{"jsname":"Chinese Academy of Sciences[2013T2S0030]","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=BASES&order=desc&&fq=dc.project.title_filter%3AChinese%5C+Academy%5C+of%5C+Sciences%5C%5B2013T2S0030%5C%5D"},{"jsname":"Environmental stresses could limit plant growth, development and propagation. Abiotic stress refers to the negative impact factors to the plants, such as extreme temperature, drought, flood, salinity, irradiation, chemicals and so on. To understand the mechanism of abiotic stress is very important.Membrane is the most sensitive organs in the cell that response to environmental changes. Cells respond and transduct environmental signals by changing content of membrane lipids and membrane proteins. The activity change of membrane phospholipase D (PLD) and the composition and content of membrane lipid molecules is one of the most anti-stress methods for the plants. It was reported that plants responded to some abiotic stresses such as freezing, thawing, seed aging and dehydration through changing lipid molecules especially the messenger phosphatidic acid (PA) and mutants of PLD were more tolerant to those stresses. It is important to investigate the characteristics and variation of membrane lipids and membrane proteins to understand the streee in plants.Three different kinds of stresses, including alpine scree temperature stress, allelopathy and Gamma irradiation stress, were studied in the present dissertation. And try to understand how plants response to those stresses by changing membrane system and the function of PLD in resistant to those stresses, lipidomic methods were used to profiling the changing of 11 lipids classes (160 lipids molecules) under thoses stresses. Moreover, PLD mutants were also used to study the role of PLD under those stresses. The mechanisms of plants response to stresses were very complicated; PLD and lipid molecules were not the only factors that response to stresses, the metabolism and phytohormones of tested plants under these stresses were also studied.In alpine scree of northwest Yunnan, the temperature was various from 33 °C during the midday to 4 °C at night, and the highest temperature could reach to 35 to 40 °C. Saussurea medusa and Solms-Laubachia linearifolia, which live in this environment, were chosen as studied model. The results showed that membrane lipid of these two plants significantly fluctuated with the temperature, while the double bond index (DBI) that had close relationship to temperature did not change. Furthermore, the the lysolipids which rise significantly under stresses did not change too much either. Laboratory mimic experiments also confermed the characteristics of lipids change to temperature in alpine scree plants. The results suggested that the plants living in such temperature changeable environment had already adapted to this situation and their membrane responded to the temperature was a kind of adaptation instead of stress response.Since the first introduction in Yunnan province of China in 1940s, E. adenophorum has spread very rapidly especially in southwestern China. Without understanding its invasive mechanism, it is impossible to control it. o-Hydroxycinnamic acid (o-HCA), an allelochmeical isolated from leachates of aerial parts of E. adenophorum were studied. o-HCA was abundant in aerial parts of E. adenophorum (1g/10kg fresh weight). The data showed that o-HCA not only had strong allelopathic effect on Arabidopsis seeds germination, but also inhibited seedling growth, and even induced root death of Arabidopsis seedlings. It could be proposed that o-HCA affected seedlings indirectly, through inducing root cell death, and it disturbed the water and ion absorption of plants and finally induced seedling to die. Interestingly, o-HCA could also inhibit E. adenophorum seed germination, while it showed no effect on its seedling growth. E. adenophorum can produce thousands of seeds and has the ability to vegetative reproduction, with which may alleviate the harmful effect of o-HCA on E. adenophorum. Unlike E. adenophorum, its neighbors’ population was inhibited, under this situation, E. adenophorum coule have better condition to live and invade successfully.Arabidopsis were irradiated with gamma rays, and 50-100 Gy gamma irradiation could inhibit seedling growth, and with the dosage above 200 Gy it could inhibit seedling flowering. Treated Arabidopsis wild types and their PLD a and d mutant with gamma ray showed no significant differences among them. The lipid molecules changes of seedlings under stress of gamma ray were also tested, and found that Gamama ray induced lipids degradation, among which, MGDG and DGDG degraded dramatically, while the average carbons in lipids did not changed. The lipids content (nmol per mg dry weight) decreased significantly, while the mol% content (mol% of total) changed slightly. Gamma irradiation also leaded to dramatically change of Arabidopsis seedling metabolomics and the phytohormones (ABA，ZR，JA，IAA).","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=BASES&order=desc&&fq=dc.project.title_filter%3AEnvironmental%5C+stresses%5C+could%5C+limit%5C+plant%5C+growth%2C%5C+development%5C+and%5C+propagation.%5C+Abiotic%5C+stress%5C+refers%5C+to%5C+the%5C+negative%5C+impact%5C+factors%5C+to%5C+the%5C+plants%2C%5C+such%5C+as%5C+extreme%5C+temperature%2C%5C+drought%2C%5C+flood%2C%5C+salinity%2C%5C+irradiation%2C%5C+chemicals%5C+and%5C+so%5C+on.%5C+To%5C+understand%5C+the%5C+mechanism%5C+of%5C+abiotic%5C+stress%5C+is%5C+very%5C+important.Membrane%5C+is%5C+the%5C+most%5C+sensitive%5C+organs%5C+in%5C+the%5C+cell%5C+that%5C+response%5C+to%5C+environmental%5C+changes.%5C+Cells%5C+respond%5C+and%5C+transduct%5C+environmental%5C+signals%5C+by%5C+changing%5C+content%5C+of%5C+membrane%5C+lipids%5C+and%5C+membrane%5C+proteins.%5C+The%5C+activity%5C+change%5C+of%5C+membrane%5C+phospholipase%5C+D%5C+%5C%28PLD%5C%29%5C+and%5C+the%5C+composition%5C+and%5C+content%5C+of%5C+membrane%5C+lipid%5C+molecules%5C+is%5C+one%5C+of%5C+the%5C+most%5C+anti%5C-stress%5C+methods%5C+for%5C+the%5C+plants.%5C+It%5C+was%5C+reported%5C+that%5C+plants%5C+responded%5C+to%5C+some%5C+abiotic%5C+stresses%5C+such%5C+as%5C+freezing%2C%5C+thawing%2C%5C+seed%5C+aging%5C+and%5C+dehydration%5C+through%5C+changing%5C+lipid%5C+molecules%5C+especially%5C+the%5C+messenger%5C+phosphatidic%5C+acid%5C+%5C%28PA%5C%29%5C+and%5C+mutants%5C+of%5C+PLD%5C+were%5C+more%5C+tolerant%5C+to%5C+those%5C+stresses.%5C+It%5C+is%5C+important%5C+to%5C+investigate%5C+the%5C+characteristics%5C+and%5C+variation%5C+of%5C+membrane%5C+lipids%5C+and%5C+membrane%5C+proteins%5C+to%5C+understand%5C+the%5C+streee%5C+in%5C+plants.Three%5C+different%5C+kinds%5C+of%5C+stresses%2C%5C+including%5C+alpine%5C+scree%5C+temperature%5C+stress%2C%5C+allelopathy%5C+and%5C+Gamma%5C+irradiation%5C+stress%2C%5C+were%5C+studied%5C+in%5C+the%5C+present%5C+dissertation.%5C+And%5C+try%5C+to%5C+understand%5C+how%5C+plants%5C+response%5C+to%5C+those%5C+stresses%5C+by%5C+changing%5C+membrane%5C+system%5C+and%5C+the%5C+function%5C+of%5C+PLD%5C+in%5C+resistant%5C+to%5C+those%5C+stresses%2C%5C+lipidomic%5C+methods%5C+were%5C+used%5C+to%5C+profiling%5C+the%5C+changing%5C+of%5C+11%5C+lipids%5C+classes%5C+%5C%28160%5C+lipids%5C+molecules%5C%29%5C+under%5C+thoses%5C+stresses.%5C+Moreover%2C%5C+PLD%5C+mutants%5C+were%5C+also%5C+used%5C+to%5C+study%5C+the%5C+role%5C+of%5C+PLD%5C+under%5C+those%5C+stresses.%5C+The%5C+mechanisms%5C+of%5C+plants%5C+response%5C+to%5C+stresses%5C+were%5C+very%5C+complicated%5C%3B%5C+PLD%5C+and%5C+lipid%5C+molecules%5C+were%5C+not%5C+the%5C+only%5C+factors%5C+that%5C+response%5C+to%5C+stresses%2C%5C+the%5C+metabolism%5C+and%5C+phytohormones%5C+of%5C+tested%5C+plants%5C+under%5C+these%5C+stresses%5C+were%5C+also%5C+studied.In%5C+alpine%5C+scree%5C+of%5C+northwest%5C+Yunnan%2C%5C+the%5C+temperature%5C+was%5C+various%5C+from%5C+33%5C+%C2%B0C%5C+during%5C+the%5C+midday%5C+to%5C+4%5C+%C2%B0C%5C+at%5C+night%2C%5C+and%5C+the%5C+highest%5C+temperature%5C+could%5C+reach%5C+to%5C+35%5C+to%5C+40%5C+%C2%B0C.%5C+Saussurea%5C+medusa%5C+and%5C+Solms%5C-Laubachia%5C+linearifolia%2C%5C+which%5C+live%5C+in%5C+this%5C+environment%2C%5C+were%5C+chosen%5C+as%5C+studied%5C+model.%5C+The%5C+results%5C+showed%5C+that%5C+membrane%5C+lipid%5C+of%5C+these%5C+two%5C+plants%5C+significantly%5C+fluctuated%5C+with%5C+the%5C+temperature%2C%5C+while%5C+the%5C+double%5C+bond%5C+index%5C+%5C%28DBI%5C%29%5C+that%5C+had%5C+close%5C+relationship%5C+to%5C+temperature%5C+did%5C+not%5C+change.%5C+Furthermore%2C%5C+the%5C+the%5C+lysolipids%5C+which%5C+rise%5C+significantly%5C+under%5C+stresses%5C+did%5C+not%5C+change%5C+too%5C+much%5C+either.%5C+Laboratory%5C+mimic%5C+experiments%5C+also%5C+confermed%5C+the%5C+characteristics%5C+of%5C+lipids%5C+change%5C+to%5C+temperature%5C+in%5C+alpine%5C+scree%5C+plants.%5C+The%5C+results%5C+suggested%5C+that%5C+the%5C+plants%5C+living%5C+in%5C+such%5C+temperature%5C+changeable%5C+environment%5C+had%5C+already%5C+adapted%5C+to%5C+this%5C+situation%5C+and%5C+their%5C+membrane%5C+responded%5C+to%5C+the%5C+temperature%5C+was%5C+a%5C+kind%5C+of%5C+adaptation%5C+instead%5C+of%5C+stress%5C+response.Since%5C+the%5C+first%5C+introduction%5C+in%5C+Yunnan%5C+province%5C+of%5C+China%5C+in%5C+1940s%2C%5C+E.%5C+adenophorum%5C+has%5C+spread%5C+very%5C+rapidly%5C+especially%5C+in%5C+southwestern%5C+China.%5C+Without%5C+understanding%5C+its%5C+invasive%5C+mechanism%2C%5C+it%5C+is%5C+impossible%5C+to%5C+control%5C+it.%5C+o%5C-Hydroxycinnamic%5C+acid%5C+%5C%28o%5C-HCA%5C%29%2C%5C+an%5C+allelochmeical%5C+isolated%5C+from%5C+leachates%5C+of%5C+aerial%5C+parts%5C+of%5C+E.%5C+adenophorum%5C+were%5C+studied.%5C+o%5C-HCA%5C+was%5C+abundant%5C+in%5C+aerial%5C+parts%5C+of%5C+E.%5C+adenophorum%5C+%5C%281g%5C%2F10kg%5C+fresh%5C+weight%5C%29.%5C+The%5C+data%5C+showed%5C+that%5C+o%5C-HCA%5C+not%5C+only%5C+had%5C+strong%5C+alle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HANDBOOKOF BIOLOGICAL STATISTICS
期刊论文
出版物, 3111, 期号: 0, 页码: 1-291
作者:
JOHN H. MCDONALD
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浏览/下载：269/2
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提交时间：2017/07/24
Fundamental issues insystems biology
期刊论文
Problems & paradigms, 3111, 页码: 1270–1276
作者:
Sayaka Taji
;
Takeshi Yamada
;
Yasuko In
;
Shun-ichi Wada
;
Yoshihide Usami
;
Kazuo Sakuma
;
Reiko Tanaka
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浏览/下载：140/1
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提交时间：2017/07/19
Elaborate Petals in Australian Spermacoce (Rubiaceae) Species:Morphology, Ontogeny and Function
期刊论文
Annals of Botany, 3111, 页码: 1—12
作者:
Antonello Mai
;
Marino Artico
;
Gianluca Sbardella
;
Silvio Massa
;
Ettore Novellino
;
Giovanni Greco
;
Anna Giulia Loi
;
Enzo Tramontano
;
Maria Elena Marongiu
;
Paolo La Colla
Adobe PDF(2074Kb)
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浏览/下载：143/1
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提交时间：2017/07/19
POLYMORPHISM OF MICROSATELLITE SEQUENCE WITHIN ABC TRANSPORTER GENES IN PHYTOPATHOGENIC FUNGUS,MAGNAPORTHE GRISEA
期刊论文
出版物, 3111, 期号: 0, 页码: 553-558
作者:
Lin Liu
;
Chengyun Li
;
Jing Yang
;
Jinbin Li
;
Yuan Su
;
Yunyue Wang
;
Yong Xie
;
Youyong Zhu
Adobe PDF(332Kb)
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提交时间：2017/07/21
PROTOCOL FOR HAZELNUT SOMATICEMBRYOGENESIS
期刊论文
Protocol for Somatic Embryogenesis in Woody Plants, 3111, 期号: 0, 页码: 413-426
作者:
Berros B.
;
Hasbún R.
;
Radojevic L.
;
Salajova T.
;
Cañal M.J.
;
R. Rodríguez
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提交时间：2017/07/24
POLYMORPHISM OF MICROSATELLITESEQUENCE WITHIN PROTEIN KINASE ORFSIN PHYTOPATHOGENIC FUNGUS,MAGNAPORTHE GRISEA
期刊论文
出版物, 3111, 期号: 0, 页码: 559-563
作者:
Chengyun Li
;
Lin Liu
;
Jing Yang
;
Jinbin Li
;
Zhang Yue
;
Yunyue Wang
;
Yong Xie
;
Youyong Zhu
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提交时间：2017/07/21
Paraphlomis caloneura (Lamiaceae), A New Species From Guangxi, China
期刊论文
SYSTEMATIC BOTANY, 2023, 卷号: 48, 期号: 2, 页码: 346-362
作者:
Yan,Ke-Jian
;
Huang,Yun-Feng
;
Li,Xiong
;
Hu,Ren-Chuan
;
Wu,Wang-Hui
;
Chen,Ya-Ping
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浏览/下载：23/2
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提交时间：2024/07/17
Ajugoides
limestone karsts
Matsumurella
nutlet
Paraphlomideae
The identity of Dinochloa species and enumeration of Melocalamus (Poaceae: Bambusoideae) in China
期刊论文
PLANT DIVERSITY, 2023, 卷号: 45, 期号: 2, 页码: 133-146
作者:
Liu,Jing-Xia
;
Xu,Zu-Chang
;
Zhang,Yu-Xiao
;
Zhou,Meng-Yuan
;
Li,De-Zhu
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浏览/下载：33/1
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提交时间：2024/05/09
ddRAD
Melocalamus orenudus
Melocalamus puberulus
Melocalamus utilis
New combinations
Lectotypification
GRAMINEAE
NUCLEAR
STACKS
GENE
Fermentation Blues: Analyzing the Microbiota of Traditional Indigo Vat Dyeing in Hunan, China
期刊论文
MICROBIOLOGY SPECTRUM, 2022, 页码: 14
作者:
Li, Shan
;
Shi, Yuru
;
Huang, Hui
;
Tong, Yan
;
Wu, Shaohua
;
Wang, Yuhua
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浏览/下载：304/8
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提交时间：2022/07/15
traditional indigo fermentation
specific plant mixture
indigo reduction
Pseudomonas
Alkalibacterium
fungal diversity
A global phylogeny of Lycopodiaceae (Lycopodiales; lycophytes) with the description of a new genus, Brownseya, from Oceania
期刊论文
TAXON, 2022, 卷号: 71, 期号: 1, 页码: 25-51
作者:
Chen,De-Kui
;
Zhou,Xin-Mao
;
Rothfels,Carl J.
;
Shepherd,Lara D.
;
Knapp,Ralf
;
Zhang,Liang
;
Lu,Ngan Thi
;
Fan,Xue-Ping
;
Wan,Xia
;
Gao,Xin-Fen
;
He,Hai
;
Zhang,Li-Bing
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浏览/下载：200/9
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提交时间：2022/04/02
Huperzia
Lycophyte Phylogeny
Lycopodiella Serpentina
Phlegmariurus
Phylloglossum
Vascular Plant Evolution
Complete Chloroplast Genome
Lycopodiopsida Lycopodiaceae
Generic Classification
Spore Morphology
Early Evolution
Land Plants
Rbcl Gene
Huperzia
Sequence
Likelihood
