共查询到20条相似文献,搜索用时 15 毫秒
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Wilhelm Menke 《Photosynthesis research》1990,25(2):77-82
An autobiographic report of studies on the elucidation of the structure of the chloroplast is presented here. It deals with the discovery of the lamellar structure of chloroplasts by polarization-microscopy, the representation of their layer-like structure with the ultraviolet microscope and the results obtained by the electron-microscope leading to the discovery of the structural elements of the lamellar system. These lamellar structures were in the form of vesicles, and were named thylakoids. Isolation of the chloroplasts made it possible to determine their chemical composition. Amphiphilic lipids, together with water, create bimolecular layers and, therefore, are responsible for the structure of the thylakoid-membranes. The role of membrane proteins was emphasized. The isolation of the individual polypeptides was possible after dissociation in sodium-dodecyl-sulfate. Antisera to these polypeptides were used to localize them in the membrane. These antisera are able to inhibit special steps in the electron transport. Our results of the spectroscopic examination of photosynthetic membrane components are also discussed.This article was written at the invitation of Dr Govindjee. 相似文献
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Janice E. Bowers 《Brittonia》1983,35(3):197-203
Jacob Corwin Blumer, a Swiss-born botanist, collected several thousand plants in southern Arizona, concentrating on the Chiricahua Mountains, Cochise County, and the Rincon Mountains, Pima County. At least 28 of these collections were later designated as type specimens. He published 23 papers on a variety of topics, including plant ecology and plant geography. His botanical career was brief, lasting from 1906 to 1917. He spent the latter half of his life as a farmer in Minnesota. 相似文献