太阳耀斑功率的实验辐照诱导氨基酸二肽的形成

IF 1.7 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

International Journal of Astrobiology Pub Date : 2022-04-11 DOI:10.1017/s1473550422000118

J. Mejsnar, V. Proks, P. Hezký, Marie Černá

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引用次数: 1

摘要

这项实验研究旨在选择符合积分数学条件的太阳耀斑光谱结果，测量这种积分通量的功率，并测试积分功率，即它是否能够在地球表面的两个选定氨基酸分子之间形成肽键。结果表明，NASA SORCE航天器上的SOLSTICE和SIM光谱仪扫描的X17太阳耀斑的辐射功率，当用于相同参数的实验辐照度时，足以在实验室温度下与焦磷酸盐或硫化羰在水溶液中形成蛋氨酸、丙氨酸、谷氨酰胺和脯氨酸二肽。这些实验取得了成功，深入了解了宽带紫外线太阳辐射中窄带太阳耀斑的生物学意义。

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Amino acid dipeptide formation induced by experimental irradiance of a solar flare power

The experimental study aimed to select the spectrometric results of the solar flare that meet the mathematical conditions for integration, to measure the power of this integrated flux, and to test the integrated power, whether it is able to form a peptide bond between two molecules of selected amino acids on the Earth's surface. Results show that the radiation power of the X17 solar flare scanned by the SOLSTICE and SIM spectrometers aboard the NASA SORCE spacecraft, when used for experimental irradiance of the same parameters, is sufficient to form methionine, alanine, glutamine and proline dipeptides in aqueous solution with pyrophosphate or carbonyl sulphide at laboratory temperature. The experiments, with their successful outcome, provide insight into the biological significance of the narrowband solar flare anchored in the broadband UV solar radiation.

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来源期刊

International Journal of Astrobiology 地学天文-地球科学综合

CiteScore

3.70

自引率

11.80%

发文量

审稿时长

>12 weeks

期刊介绍： International Journal of Astrobiology is the peer-reviewed forum for practitioners in this exciting interdisciplinary field. Coverage includes cosmic prebiotic chemistry, planetary evolution, the search for planetary systems and habitable zones, extremophile biology and experimental simulation of extraterrestrial environments, Mars as an abode of life, life detection in our solar system and beyond, the search for extraterrestrial intelligence, the history of the science of astrobiology, as well as societal and educational aspects of astrobiology. Occasionally an issue of the journal is devoted to the keynote plenary research papers from an international meeting. A notable feature of the journal is the global distribution of its authors.