|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 笋芽顶端分生组织在竹秆横切面形态形成中的作用与机制研究显示文摘竹秆的横切面主要由表皮、皮层、维管组织、基本组织及髓腔(早期为髓组织)组成。这些组织均由笋芽茎顶端分生组织分化发育而来,且其在生长发育过程中促使了竹秆横切面形态(本文特指:竹秆横切面外轮廓形状、围度及壁-腔结构)的形成。然而,人们对于这一生长发育过程的生物学机制知之甚少。本研究利用解剖学、数学模拟等方法,对 20 种具不同秆径竹种的笋芽顶端分生组织进行了分析。研究结果发现,笋芽顶端分生组织指状形态的维持是竹子产生圆柱形竹秆的基础;在顶端分生组织细胞数目增加的同时,线性增加原体细胞数目应是竹子在演化过程中产生大径竹秆且保持规则壁-腔结构的方式。进一步通过研究一个竹壁增厚且壁-腔架构紊乱的稳定变异体———实肚竹( Phyllostachys nidularia f. farcta)发现,其笋芽顶端分生组织细胞数目减少且原体/原套细胞数比值降低使其产生了高比例的壁组分组织(指基本分生组织与肋状分生组织)与低比例的髓组织。上述 2 种组织的比例失衡,使得实肚竹笋芽在后续发育中壁组分组织随机挤入到了髓组织中,最终形成了实肚竹异常的竹秆横切面形态(竹壁多样化增厚且壁-腔结构紊乱)。此外,相对较小的顶端分生组织,使得实肚竹笋芽产生了较少的内源激素,如其生长素含量仅约为其原种篌竹的 67. 5%,各细胞分裂素含量也显著低于篌竹笋芽。转录组分析进一步发现,在实肚竹笋芽中与激素及代谢相关的功能基因呈显著下调表达。这些生理与分子变化最终导致了实肚竹竹秆矮化、秆径减小且生物量降低。本论文的研究结果为研究竹秆横切面发育提供了一个重要的视角,同时也为实肚竹厚壁茎秆的形成提出了一个合理的机制。 | Wang Y Sun X Ding Y Fei Z Jiao C Fan M Yao B Xin P Chu J Wei Q 王雨珺 魏强 | 2019 | 世界竹藤通讯2019，17，3： | 5 |
| 2 | The spatial distribution of major and trace elements of surface sediments in the northeastern Beibu Gulf of the South China Sea显示文摘A multi-index analysis including grain size, major and trace elements is performed on the surface sediments from the northeastern Beibu Gulf to trace the sources of the sediments and to understand the controlling factors for elements distribution. The mean grain size exhibits a wide variation ranging from 0.09Φ to 8.05Φ with an average value of 5.33Φ. The average contents of major elements descend in an order of c(SiO_2)>c(Al_2O_3)>c(Fe_2O_3)>c(CaO)>c(MgO)>c(K_2O)>c(Na_2O)>c(TiO_2)>c(P_2O_5)>c(MnO), while those of trace elements exhibit a descending order of c(Sr)>c(Rb)>c(V)>c(Zn)>c(Cr)>c(Pb)>c(Ni)>c(Cu)>c(As). On the basis of elementary distribution characteristics and statistical analyses, the study area is divided into the four zones: Zone I is located in the northeastern coastal area of the gulf, which receives large amount of fluvial materials from local rivers in Guangxi and Guangdong, China, and the Qiongzhou Strait; Zone Ⅱ is located in the center of the study area, where surface sediments exhibits a multiple source; Zone Ⅲ is located in the Qiongzhou Strait, where surface sediments are dominated by materials from the Zhujiang River and Hainan; Zone IV is located in the southwest of the study area, where surface sediments are mainly originated from the Red River and Hainan. The statistical analyses of sediment geochemical characteristics reveal that the grain size, which is mainly influenced by hydrodynamics and mineral composition of terrigenous materials, is the leading factor controlling the elementary distribution.Meanwhile, impacts from anthropogenic activities and marine biogenic process will also be taken into consideration. | Qian Ge George Z Xue Liming Ye Dong Xu Jianru Zhao Fengyou Chu | 2019 | Acta Oceanologica Sinica2019，38，3： | 5 |
| 3 | Suppression of tumor necrosis factor-induced cell death by inhibitor of apoptosis c - IAP2 is under NF-kappa B control 显示文摘 | Chu Z L Mckinsey T A Lia L Gentry J J Malim M H Ballard D W | 1997 | PNAS1997，94，10： | 1 |
| 4 | Synthesis, characterization and controlled drug release of thermosensitive IPNPNIPAAm hydrogels 显示文摘 | Zhang X Z Wu D Q Chu C C | 2004 | Biomaterials2004，25，： | 1 |
| 5 | Downregulation and abromal expression of E-cadherin and β-catenin in nasopharyngeal carcinoma:close association with advanced disease stage and lymph node metastasis显示文摘 | Zheng Z Pan J Chu B | 1999 | Hum Pathol1999，30，4： | 1 |
| 6 | Vibration signal analysis and feature extraction based on reassigned wavelet scalogram显示文摘 | Peng Z K Chu F L He Y Y | 2002 | Journal of Sound and Vibration2002，253，5： | 1 |
| 7 | Analysis of RNA-bind- ing protein IMP3 to predict metastasis and prognosis of renal-cell carcinoma:a retrospective study显示文摘 | Jiang Z Chu PG Woda BA | 2006 | Lancet On- col2006，7，7： | 1 |
| 8 | Vibration characteristics of rotating thin cylindrical shells for various boundary conditions显示文摘 | Liu Y Q Qin Z Y Chu F L | 2012 | J Tsinghua Univ (Sci & Tech)2012，52，1： | 1 |
| 9 | Therapeutic target database update 2012: Aresource for facilitating target-oriented drug discovery 显示文摘 | FENG Z ZHE S CHU Q | 2012 | Nucleic Acids Res2012，，40： | 1 |
| 10 | A comparison study of improved Hilbert-Huang transform and wavelet transform:Application to fault diagnosis for rolling bearing显示文摘 | Peng Z K Peter W T Chu F L | | 0，，5： | 1 |
| 11 | Gender difference in thecharacteristics of and high-risk behaviours among non-injectingheterosexual methamphetamine users in Qingdao, Shandongprovince,China显示文摘 | Liu D Wang Z Chu T | 2013 | BMC Public Health2013，13，： | 1 |
| 12 | Band to band optical absorption in narrow gap Hg:-xCdxTe semiconductors显示文摘 | J H Chu Z Y Mi D Y Tang | 1992 | J Appl Phys1992，71，8： | 1 |
| 13 | Matrix metalloproteinase-9 is as- sociated with relapse and prognosis of patients with colorectal canc- er显示文摘 | Chu D Zhao Z Zhou Y | 2012 | Ann Surg Oncol2012，19，1： | 1 |
| 14 | Low Thermal Expansion Behav-ior and Electrical Conductivity of Mn3 ( Cu0 5Si,Ge0 5 _T) N at LowTemperatures显示文摘 | Huang R J Wu Z Chu X | 2010 | Solid State Sciences2010，12，12： | 1 |
| 15 | Pathogen-induced expressional loss of function is the key factor in race-specific bacterial resistance conferred by a recessive R gene xa13 in rice显示文摘 | Yuan M Chu Z H Li X H | 2009 | Plant and Cell Physiology2009，50，5： | 1 |
| 16 | Peritumoral lymphatic vessel density and wtscular endothelial growth factor C expression in early-stage squamous cell carcinoma of the uterine cervix 显示文摘 | Gombos Z Xu X Chu CS | 2005 | Clin Cancer Res2005，11，23： | 1 |
| 17 | A comparison study of improved Hilbert Huang transform and wavelet transform: application to fault diagnosis for rolling bear ing显示文摘 | Peng Z Tse P Chu F | 2005 | Mechanical Systems and Signal Processing2005，19，5： | 1 |
| 18 | A comparison study of improved Hilbert-Huang transform and wavelet transform:Application to fault diagnosis for rolling bearing显示文摘 | Peng Z K Peter W T Chu F L | 2005 | Mechanical Systems and Signal Processing2005，19，： | 1 |
| 19 | Bifurcation and chaos in a rub-impact Jeffcott rotor system显示文摘 | Chu F Zhang Z | 1998 | Journal of Sound and Vibration1998，210，1： | 1 |
| 20 | Bifurcation and chaos in a rub-impact Jeffcott rotor system 显示文摘 | Chu F Zhang Z | 1998 | Journal of Sound and Vibration1998，210，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员