カワムラ　クニオ   KAWAMURA Kunio   川村　邦男    所属   広島修道大学  人間環境学部    職種   教授
言語種別	英語
発行・発表の年月	2009/12
形態種別	その他の研究業績
標題	An RNA world under hydrothermal environments on the basis of kinetic analyses of the prebiotic formation of RNA
執筆形態	共著
掲載誌名	Origins Life Evol. Biospheres
掲載区分	国外
出版社・発行元	ISSOL
巻・号・頁	39,pp.202-203
担当範囲	Corresponding author
著者・共著者	Kunio Kawamura, Jun Maeda, Hiroki Nagayoshi
概要	We have accumulated kinetic data on the temperature dependence of the prebiotic RNA polymerase model reactions, that is, the TD reaction , Pb2+-ion-catalyzed oligonucleotide formation , and the CL reaction . These investigations have suggested that its prebiotic formation could be faster than its degradation at high temperatures. On the other hand, the biologically important interactions, such as hydrophobic interactions and hydrogen bonding, would not be effective at high temperatures. However, this estimation could not be experimentally verified at high temperatures. We have developed an in situ UV-visible spectrophotometer for hydrothermal reactions and attempted to evaluate such interactions. These analyses provided insight into the chemical evolution for the RNA world hypothesis and hydrothermal origin of life hypothesis to be compatible.