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您的检索式：作者名="Michael Kiehn"
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| 1 | The odd one out or a hidden generalist:Hawaiian Melicope (Rutaceae)do not share traits associated with successful island colonization显示文摘Oceanic islands are unique in their species composition,which is defined by arrival of colonizers via long distance dispersal followed by establishment of species followed in some cases by adaptive radiation.Evolutionary biologists identified traits facilitating successful colonization of islands as including polyploidy,self-compatibility, herbaceousness and ability for long-distance dispersal.Successful establishment and evolutionary diversification of lineages on islands often involves shifts to woodiness and shifts in methods of outcrossing as well as changes in dispersal ability.The genus Meflicope colonized numerous archipelagos throughout the Pacific including the Hawaiian Islands,where the lineage comprises currently 54endemic species and represents the largest radiation of woody plants on the islands.The wide distributional range of the genus illustrates its high dispersibility,most likely, due to adaption to bird dispersal.Here we investigate ploidy in the genus using flow cytometry and chromosome counting.We find the genus to be paleopolyploid with 2n =4x =36,a ploidy level characterizing the entire subfamily Amyridoideae and dating back to at least the Palaeocene.Therefore Hawaiian MeHcope have not undergone recent polyploidization prior to colonization of the islands.Thus Nlelicope retained colonization success while exhibiting a combination of traits that typically characterize well established island specialists while lacking some traits associated to successful colonizers. | Claudia Paetzold Michael Kiehn Kenneth R.Wood Warren L.Wagner Marc S.Appelhans | 2018 | Journal of Systematics and Evolution2018，56，6： | 2 |
| 2 | 应用UW液储存待植皮片的改良储皮法——皮片的储存显示文摘目的 营养液可延长移植物的存储时间。本文将探讨应用Wisconsin大学保存液(UW液)灌注组织(皮瓣),使其耐受缺血,以延长皮片保存时间和提高延期移植的成活率。方法设计小鼠模型,评估待植断层皮片及全厚皮片在普通生理盐水、UW液和Roswell Park Memorial Institute(RPMI)-1640培养基中的活力。将取下的皮片在4℃下分别储存1,2,4,7,10d,然后回植并分别测定其成活百分率。结果在储存期内,保存在UW液中的断层皮片与在生理盐水和RPMI—1640中的相比,植皮效果明显改善;而3种液体保存的全厚皮片无明显差异。结论选用UW液储存断层皮片进行异体植皮或延期植皮可延长储皮时间,并可在保质期内明显改善植皮效果。本研究发现,更厚的皮片厚度会限制保存液的渗透力,从而限制储存全厚皮片的能力。 | Mark W Kiehn rryler Staelin Mary Nutt BA David Robinson Michael L Bentz 王娜(译者) 张晨(译) | 2010 | 中国美容整形外科杂志2010，21，3： | 1 |
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