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| 1 | 二种核糖体型的多环马格里夫藻(Margalefidinium polykrikoides)的形态和超微结构比较及分子系统学分析显示文摘多环马格里夫藻是一种世界性广泛分布的有毒有害藻华原因种。过去30多年里多环马格里夫藻藻华在许多国家频繁暴发且呈快速扩散趋势。过去的研究根据不同地理来源种群在核糖体大亚基基因序列的显著差别,将其分成4种不同核糖体型(ribotype),即东亚型、菲律宾型、美国/马来西亚型和地中海型。但是,不同核糖体型的种群在形态和超微结构上是否也存在可辨识差异尚未见深入研究。为此,本文对从中国青岛胶州湾、美国东海岸和马来西亚近海分离的三株多环马格里夫藻(中国株MPJZBC3、美国株CP1和马来西亚株MPCoKK23)的细胞表面形态和超微结构进行了比较研究,并进一步基于核糖体大亚基序列进行了分子系统学分析。结果首先证明了分离自胶州湾的多环马格里夫藻属于东亚核糖体型,而美国株和马来西亚株均属美国/马来西亚型(中国株与美国株及马来西亚株在1523个碱基的核糖体大亚基序列上相似性为93.6%)。但是,在所有常用的具有分类学意义的细胞形态学和超微结构特征上[细胞大小、单细胞或群体及群体细胞数、上下锥形状、横沟位移度(绕细胞圈数)、纵沟形态、顶沟形态、细胞核位置与形状、染色体形状与数目、叶绿体的形状、结构、数目及分布、淀粉核形态等],中国株与美国株和马来西亚株(也即东亚核糖体型和美国/马来西亚核糖体型)都没有明显可区分的差别。因此,我们认为应该在生活史、休眠孢囊形态和生理学特征(如毒素种类及毒性强弱)以及性别相容性(sexual compatibility)等方面开展进一步比较研究,以获得对不同核糖体型种群的识别性状。在现阶段有害藻华的野外监测中,尤其是对于不同核糖体型种群可能造成的生物入侵的监测和追溯,多环马格里夫藻的鉴定尚必须以核糖体基因序列作为可靠的判决依据。 | 翟噎宇 邓蕴彦 孙园园 LEAW Chui-Pin LIM Po-Teen 赵增霞 胡章喜 唐赢中 | 2019 | 海洋与湖沼2019，50，6： | 2 |
| 2 | Characterization of yeasts colo- nlzing in healthy individuals显示文摘 | Yang YL Leaw SN Wang AH etal | 2011 | Med Mycol2011，49，1： | 1 |
| 3 | Analysis of paralytic shellfish poisoning toxin congeners by a sodium channel receptor binding assay 显示文摘 | Usup G Leaw CP Cheah MY | 2004 | Toxicon2004，44，1： | 1 |
| 4 | Identification ofmedically important Candida and non-Candida yeast speciesby an oligonucleotide array 显示文摘 | Leaw S N Chang H C Barton R | 2007 | Journal of Clinical Microbiology2007，45，7： | 1 |
| 5 | Internal mammary lymph node recurrence: rare but characteristic metastasis site in breast cancer 显示文摘 | Chen L Gu Y Leaw S | 2010 | BMC Cancer2010，10，7： | 1 |
| 6 | Growth andtoxin production of tropical Alexandrium minutumHalim(Dinophyceae)under various Nitrogen tophosphorus ratios显示文摘 | Lim P T Leaw C P Kobiyama A | 2010 | Journal of Applied Phycology2010，22，2： | 1 |
| 7 | Growth and toxin production of tropical Alexandrium minutum Halim(Dinophyceae) under various Nitrogen to phosphorus ratios显示文摘 | Lira P T Leaw C P Kobiyama A | 2010 | Journal of Applied Phycology2010，22，2： | 1 |
| 8 | Rapid identification of yeasts in positive blood cultures by a multiplex PCR method显示文摘 | Chang HC Leaw SN Huang AH | 2001 | J Clin Mierobiol2001，39，10： | 1 |
| 9 | Preemptive use of interferon or lamivudine for hepatitis B reactivation in patients with aggressive lymphoma receiving chemotherapy 显示文摘 | Leaw SJ Yen C J Huang WT | 2004 | Ann Hematol2004，83，： | 1 |
| 10 | Rapid Identification of Yeasts in Positive Blood Cultures by a Multiplex PCR Method显示文摘 | Chang HC Leaw SN Huang AH | 2001 | J Clinical Microbiology2001，39，10： | 1 |
| 11 | Identification of medical- ly important yeast species by sequence analysis of the internal transcribed spacer regions 显示文摘 | Leaw SN Chang HC Sun HF | 2006 | J Clin Microbol2006，44，3： | 1 |
| 12 | Rapid identification of yeasts in positive blood cultures by a multiplex PCR method显示文摘 | Leaw SN Huang AH | 2001 | J Clin Microbiol2001，39，： | 1 |
| 13 | Analysis of paralytic shellfish poisoning toxin congeners by a sodium channel receptor binding assay显示文摘 | Usup G Leaw CP Cheah MY | 2004 | Toxicon2004，44，1： | 1 |
| 14 | Rapid identification of yeasts commonly found in positive blood cultures by amplification of the in- iernal transcribed spacer regions 1 and 2 显示文摘 | Li YL Leaw SN Chen JH | 2003 | Eur J Clin Microbiol Infect Dis2003，22，11： | 1 |
| 15 | Preemptive use of interferon or lamivudine for hepatitis B reactivation in patients with aggressive lymphoma receiving chemotherapy 显示文摘 | Leaw SJ Yen C J Huang WT | 2004 | Ann Hematol2004，83，： | 1 |
| 16 | Rapid identification of yeasts in positive blood cultures by a multiplex PCR method显示文摘 | Huang A H | 2001 | J Clin Microbiol2001，39，： | 1 |
| 17 | Rapid Identification of Yeasts Commonly Found in Positive Blood Cultures by Amplification of the Internal Transcribed Spacer Regions 1 and 2显示文摘 | LI Y L Leaw S N Chen J H | 2003 | Eur J clin Microbiol Infect Dis2003，22，： | 1 |
| 18 | Growth and toxin production of tropical Alexandrium minuturn Halim (Dinophyceae) under various Nitrogen to phosphorus ratios显示文摘 | Lim P T Leaw C P Kobiyama A | 2010 | Journal of Applied Phycology2010，22，2： | 1 |
| 19 | Identification of medically important yeast species by sequence analysis of the internal tran- scribed spacer regions 显示文摘 | Leaw SN Chang HC Sun HF | 2006 | J Clin Microbiol2006，44，3： | 1 |
| 20 | Identification of medically important yeast species by sequence analysis of the internal transcribed spacer regions显示文摘 | Leaw S N Chang H C Barton R etal | 2007 | J Clin Microbiol2007，45，7： | 1 |
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