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| 1 | Perturbation of Wood Cellulose Synthesis Causes Pleiotropic Effects in Transgenic Aspen显示文摘在树上的纤维素生合成的基因操作可以提供新奇卓见进树的生长和发展。探索这可能性,一棵白杨的 overexpression 第二等的联系墙的纤维素 synthase (PtdCesA8 ) 基因在转基因的白杨(Populus tremuloides L.) 被尝试并且出人意料地象它的内长的对应物一样导致了 transgene 的 silencing。转基因的白杨植物的主要的轴快速停止成长,并且弱树枝采用了一个哭泣的生长习惯。而且,转基因的植物开始开发了更小的叶子和一个不太广泛的根系统。几乎没象 10% 纤维素一样包含的转基因的白杨植物的第二等的木部(木头) 使正常化与典型地在正常白杨木头发现的 41% 纤维素相比弄干重量。在纤维素的这巨大的减小被木质素(35%) 和非有纤维质的多糖(55%) 的比例的增加在控制植物与 22% 木质素和 36% 非有纤维质的多糖相比伴随。生产的转基因的茎典型崩溃或改变了第二等的墙形态学并且极大地包含了的不规则的木部容器减少了水晶的纤维素的数量。这些结果在维持要求在树上建立垂直生长习惯的力量和结构的正直在第二等的木部以内表明第二等的墙纤维素的基本角色。 | Chandrashekhar R Joshi Shivegowda Thammannagowda Takeshi Fujino Ji-Qing Gou Utku Avci Candace H. Haigler Lisa M. McDonnell Shawn D. Mansfield Bemnet Mengesha Nicholas C. Carpita Darby Harris Seth DeBolt Gary F. Peter | 2011 | Molecular Plant2011，4，2： | 4 |
| 2 | Contrasting effects of space and environment on functional and phylogenetic dissimilarity in a tropical forest显示文摘Aims The evolutionary history and functional traits of species can illumi-nate ecological processes supporting coexistence in diverse forest communities.However,little has been done in decoupling the rela-tive importance of these mechanisms on the turnover of phylogenetic and functional characteristics across life stages and spatial scales.Therefore,this study aims to estimate the contribution of environment and dispersal on the turnover of phylogenetic and functional diversity across life stages and spatial scales,in order to build a coherent pic-ture of the processes responsible for species coexistence.Methods We conducted the study in Xishuangbanna Forest Dynamics Plot in Yunnan Province,southwest China.We used four different spatial point process models to estimate the relative importance of disper-sal limitation and environmental filtering.The functional traits and phylogenetic relationships of all individual trees were incorporated in the analyses to generate measures of dissimilarity in terms of pair-wise and nearest-neighbor phylogenetic and functional characteris-tics across life stages and spatial scales.Important Findings We found non-random patterns of phylogenetic and functional turnover across life stages and spatial scales.Environmental filtering structured pairwise phylogenetic and functional beta diversity across spatial scales,while dispersal limitation alone,and in combination with environment filtering,shaped nearest neighbor phylogenetic and functional beta diversity.The relative importance of dispersal limitation and environmental filtering appeared to change with life stage but not with spatial scale.Our findings suggest that phylogenetic and functional beta diversity help to reveal the ecological processes responsible for evolu-tionary and functional assembly and highlight the importance of using a range of different metrics to gain full insights into these processes. | Mengesha Asefa Calum Brown Min Cao Guocheng Zhang Xiuqin Ci Liqing Sha Jie Li Luxiang Lin Jie Yang | 2019 | Journal of Plant Ecology2019，12，2： | 3 |
| 3 | Ethiopian vegetation types,climate and topography显示文摘Ethiopia is land of geographical contrasts with elevations that range from 125 m below sea level in the Danakil Depression to 4533 m above sea level in the Semien Mountains,a world heritage site.The diverse climate of various ecological regions of the country has driven the establishment of diverse vegetation,which range from Afroalpine vegetation in the mountains to the arid and semi-arid vegetation type in the lowlands.The formation of Ethiopian vegetation is highly connected to the climate and geological history of the country.Highland uplift and rift formation due to volcanic forces formed novel habitats with different topography and climatic conditions that have ultimately become drivers for vegetation diversification.Due to Ethiopia's connection with the temperate biome in the north and the Arabian Peninsula during the dry glacial period,the biotic assemblage of Ethiopian highlands consists of both Afrotropical and palearctic biota.In general,eight distinct vegetation types have been identified in Ethiopia,based mainly on elevation and climate gradients.These vegetation types host their own unique species,but also share several common species.Some of the vegetation types are identified as centers of endemism and have subsequently been identified globally as the East African Afromontane hotspot.Ethiopia is biologically rich,with more than 6500 vascular plant species.Of these species,12%are endemic mainly due to geographical isolation and unique climatic conditions.However,researchers have yet to extensively investigate the ecology,phenology,as well as the evolutionary,genetics,and conservation status of Ethiopian vegetations at community and species level over space and time.This lack of research is a barrier to achieving the goal of zero global plant extinctions.Taxa extinction risk assessment has not been extensively carried out for majority of Ethiopian species.Detailed research is needed to explore how vegetation and species respond to rapidly growing environmental change.Currently,human-induced climate change and habitat fragmentation are severely threatening the country's biodiversity,and the consequences of these effects have not been studied at large.Furthermore,we still lack scientific evidence on how micro-and macro-ecological and evolutionary processes have been shaping vegetation structures in this climatically,topographically,and geologically diverse country.These gaps in our knowledge represent an opportunity for ecologists,geneticists,evolutionary biologists,conservation biologists,and other experts to investigate the biodiversity status and the complex ecological processes involved in structuring vegetation dynamics so as to help take effective conservation actions. | Mengesha Asefa Min Cao Yunyun He Ewuketu Mekonnen Xiaoyang Song Jie Yang | 2020 | Plant Diversity2020，42，4： | 2 |
| 4 | Upper gastrointestinal endoscopy: a review of 10000 cases 显示文摘 | Taye M Kassa E Mengesha B | 2004 | Ethiop Med J2004，42，2： | 1 |
| 5 | Upper gastroin_testinal endoscpy:a review of 10 000 cuses显示文摘 | Taye M kassa E Mengesha B | 2004 | E thiop Med2004，42，2： | 1 |
| 6 | Mutation in TRMU Related to Transfer RNA Modification Modulates the Phenotypic Expression of the Deafness-Associated Mitochondrial 12S Ribosomal RNA Mutations显示文摘 | Min-Xin Guan Qingfeng Yan Xiaoming Li Yelena Bykhovskaya Jaime Gallo-Teran Petr Hajek Noriko Umeda Hui Zhao Gema Garrido Emebet Mengesha Tsutomu Suzuki Ignacio del Castillo Jennifer Lynne Peters Ronghua Li Yaping Qian Xinjian Wang Ester Ballana Mordechai | 2006 | The American Journal of Human Genetics2006，，2： | 1 |
| 7 | Telomerase shortening and decreased replicative potential,contrasted by continued proliferation of telomerase-positive CD8+CD28(lo)T cells in patients with systemic lupus erythematosus显示文摘 | Honda M Mengesha E Albano S Nichols WS Wallace DJ Metzger A | 2001 | Clin Immunol2001，99，2： | 1 |
| 8 | Bacterial targeted tumour therapy-dawn of a new era显示文摘 | Wei MQ Mengesha A Good D | 2008 | Cancer Letters2008，259，1： | 1 |
| 9 | Genetics of white sheath and bleached leaf mutants in pearl millet 显示文摘 | Rao S A Mengesha M H Reddy C R | 1990 | J Hered1990，81，2： | 1 |
| 10 | A co culture approach show that polyamine turnover is affected during inflammation in Atlantic salmon immune and liver cells and that arginine and LPS exerts opposite effects on p38MAPK signaling显示文摘 | Elisabeth Holen Marit Espe Synne M. Andersen Richard Taylor Anders Aksnes Zebasil Mengesha Pedro Araujo | 2014 | Fish and Shellfish Immunology2014，，2： | 1 |
| 11 | Aerobic bacteria in post surgical wound infections and pattern of their antimicrnbial susceptibility in Ayder Teaching and Referral Hospital, Mekelle, Ethiopia 显示文摘 | Mengesha RE Kasa BG Saravanan M | 2014 | BMC Res Notes2014，7，1： | 1 |
| 12 | Simple Chromatographic Method for Simultaneous Analyses of Phosphatidylcholine, Lysophosphatidylcholine, and Free Fatty Acids显示文摘 | Abebe Endale Mengesha Paul M Bum met | 2010 | AAPS PharmSciTech2010，11，3： | 1 |
| 13 | Metabolic andcardiovascular genes in polycystic ovary syndrome: a candi- date-wide association study (CWAS)显示文摘 | JONES MR CHUA AK MENGESHA EA | 2011 | Steroids2011，77，4： | 1 |
| 14 | Bacterial targeted tumour therapy-dawn of a new era显示文摘 | WEI MQ Mengesha A Good D | 2008 | Cancer Lett2008，259，1： | 1 |
| 15 | Phenotype of non--syndromic deafness associated with the mitochondrial A1555G mutation is modulated by mitochondrial RNA modif- ying enzymes MTO1 and GTPBP3显示文摘 | Bykhovskaya Y Mengesha E Wang D | 2004 | Mol Genet Metab2004，83，： | 1 |
| 16 | Human mitochondrial transcription factor B1 as a modifier gene for hearing loss associated with the mitochondrial A1555G mutation显示文摘 | Bykhovskaya Y Mengesha E Wang D | 2004 | Molecular Genetics and MetaSolism2004，82，1： | 1 |
| 17 | Bacterial targeted tumour therapy-dawn of a new era 显示文摘 | WEI M Q MENGESHA A GOOD D | 2008 | Cancer Lett2008，259，1： | 1 |
| 18 | Bacterial targeted tumour therapy-dawn of a new era显示文摘 | Wei MQ Mengesha A Good D | 2008 | Cancer Letters2008，259，1： | 1 |
| 19 | Missense mutation in pseudouridine synthase 显示文摘 | Bykhovskaya Y Casas K Mengesha E | 2004 | Am J Hum Genet2004，74，6： | 1 |
| 20 | Telomere shorting and decreased replicativepotential,contrasted by continued proliferation of telomerase-positive CD8+CD28lo T cellsin patients with systemic lupus erythematosus 显示文摘 | HONDA M MENGESHA E ALBANO S | 2001 | Clin Immounol2001，99，2： | 1 |
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