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马铃薯早疫病的图解分级法

植物医学 1986年第4期 35-35页

作者： F·j·Reifschneider 黄小明

由Alternariu solani(Ell.＆ mart)Sorauer引起的早疫病是马铃薯(Solanumtuberosum L.)最严重的真菌性病害之一,尤其在高温和高湿的条件下,更是如此。在巴西A.solani对马铃薯的危害范围基本上局限于叶片上;块茎感染的情况很少见。由于雨... 详细信息

由Alternariu solani(Ell.＆ mart)Sorauer引起的早疫病是马铃薯(Solanumtuberosum L.)最严重的真菌性病害之一,尤其在高温和高湿的条件下,更是如此。在巴西A.solani对马铃薯的危害范围基本上局限于叶片上;块茎感染的情况很少见。由于雨季(10月—5月)的巴西中部高温高湿,因而早疫病成了对马铃薯生产限制

关键词：马铃薯马铃薯旱疫病

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复合肥大细胞瘤-交界痣

世界核心医学期刊文摘（皮肤病学分册） 2005年第5期1卷 48-48页

作者： northcutt A.D. Tschen j.A. 刘艳 Dr.Central Texas Pathology Labora tory 3115 Pine Avenue Waco TX 76708 United States

A unique combined mastocytoma-junctional nevus presented as a 4-mm dark brow n macule in the axilla of a 57-year-old white female. Histopathologic examinat ion revealed a proliferation of mast cells partially or completely filling the d ermal papillae,hyperpigmentation of the basal keratinocytes and mildly increased basal melanocytes. Overlying the mast cell proliferation, pigmented junctional nevus nests were present. The mast cells were strongly positive with Giemsa stai n and mast cell tryptase immunohistochemical stain; nevomelanocytic cells were n egative. nevomelanocytes were strongly immunoreactive for S100, HMB-45, mart-1 , and tyrosinase; mast cells were negative. The clinicopathologic features sugge sted a synchronous proliferation of 2 cell types in the same small cutaneous fie ld rather than a collision tumor. While the cutaneous mast cells probably origin ated as a disseminated clone,itispostulatedthat local mast cell growth factor in duced nevomelanocytic proliferation and modulated mast cell growth. In fact, the tumor exhibited strong immunoreactivity for the mast cell growth factor recepto r (CD117) in mast cells, basal melanocytes, and nevus nests. The incidence of du al mast cell-melanocytic tumors appears to be very low, as only 3 total cases h ave now been reported. However, since in patients with multiple mastocytomas onl y a small fraction of lesions are biopsied, the true incidence may be higher tha n supposed.

关键词：交界痣肥大细胞黑素细胞痣基底层黑素细胞免疫反应组织学检查色素性皮损区实际发生率真皮乳头

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甘薯根腐病相关AFLP标记筛选

湖北农业科学 2011年第24期50卷 5254-5255,5265页

作者：苏文瑾王连军雷剑赵天瑶帅秋菊杨新笋湖北省农业科学院粮食作物研究所武汉430064 长江大学农学院湖北荆州434023

甘薯根腐病是由甘薯根腐病病原菌[Fusarium solani(mart.)Sacc.***.sp.batatas McClure,简称FSB]引起的一种真菌性毁灭性病害,传播途径广,蔓延速度快,近年有向长江流域以南地区传播的趋势,对甘薯生产造成极大危害。在已有的徐薯18与胜利百... 详细信息

甘薯根腐病是由甘薯根腐病病原菌[Fusarium solani(mart.)Sacc.***.sp.batatas McClure,简称FSB]引起的一种真菌性毁灭性病害,传播途径广,蔓延速度快,近年有向长江流域以南地区传播的趋势,对甘薯生产造成极大危害。在已有的徐薯18与胜利百号F1分离群体抗性鉴定的基础上,采用分离群体混合分析法(Bulked segregant analysis,BSA)与AFLP技术相结合,通过筛选80对引物,定位与甘薯根腐病相关的分子标记,在感病群体中定位到一个显性标记,即标记Eco(45)-Mse(45)被发现与感病基因连锁。所获试验结果对甘薯抗病遗传改良具有指导意义。

关键词：甘薯根腐病 AFLP标记分离群体混合分析法

皮肤高分化基底细胞癌合并恶性黑色素瘤(“恶性基底黑色素细胞瘤”):2例病例报道及文献回顾

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世界核心医学期刊文摘（皮肤病学分册） 2005年第12期1卷 27-27页

作者： Rodriguez j. nonaka D. Kuhn E. 李政霄 Dr. Centro Diagnostico Italiano Via Saint Bon 20 20147 Milano Italy

We describe two cases of a malignant cutaneous neoplasm with combined phenotypical features of high- grade basal cell carcinoma and malignant melanoma. Some tumor cells showed a keratinocytic phenotype (cytokeratins, p63) and others a melanocytic phenotype (HMB- 45, mart- 1, Melan- A, S100- protein). We favor the hypothesis of a tumor with bidirectional keratinocytic and melanocytic differentiation, an exceptionally rare event.

关键词：色素细胞瘤基底细胞癌恶性黑色素瘤文献回顾黑色素细胞角质形成细胞表型特征细胞角蛋白