沉积环境是塞尔维亚和斯洛文尼亚前似质体中脂质生物标志物分布的影响因素:确定生物技术潜力的第一步

IF 5.4 1区 农林科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY
Aleksandra Šajnović , Gorica Veselinović , Nikola Burazer , Gordana Gajica , Sanja Stojadinović , Polonca Trebše , Branimir Jovančićević
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引用次数: 0

摘要

评估类球体前的生物技术潜力首先要确定来自微生物或高等植物前体的有益代谢物,这些代谢物的存在取决于类球体形成期间的环境条件。因此,本研究探讨了淡水大陆(Vrujci, VRU)、咸水大陆(Rusanda, RUS)和咸水大陆(Rusanda, RUS)的不同沉积环境对类质体前有机质(OM)中脂质生物标志物分布的影响。使用气相色谱-质谱法(GC-MS)分析ov a, OVC)和海洋(se ovlje, SEC)环境。VRU样品的OM中含有丰富的高等植物衍生的奇数长链正构烷烃成员、四碳烷酸和八碳烷酸酯、C29规则甾烷、网烯和具有熊烷或齐烷碳骨架的芳香三萜。混合微藻/细菌和高等植物生物量构成了盐碱化大陆环境下沉积的似质体前有机质。微藻/细菌对OVC样品有机质的参与程度较高,可以从短链n-C17烷烃的普遍存在和脂肪酸酯的最高含量推断,而正链烷烃的双峰分布,以及长链同源物n-C27-n-C33、短链C21和C22甾烷和C27规则甾烷在RUS样品有机质中的普遍存在,表明微生物/高等植物混合生物量。短链偶正构烷烃同源物C28 ster-2-ene和C29 ster-2-ene甾体,以及C27 hopene和diploptene,具有(氰基)细菌来源,在SEC样品的OM中占主导地位。所有上述化合物,公认具有广泛的生物活性,可能有助于最终球体产品的质量和适用性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Depositional settings as an influencing factor on lipid biomarker distribution in pre-peloids from Serbia and Slovenia: initial step in determining the biotechnological potential

Depositional settings as an influencing factor on lipid biomarker distribution in pre-peloids from Serbia and Slovenia: initial step in determining the biotechnological potential
Assessing the biotechnological potential of pre-peloids begins with identifying beneficial metabolites derived from microorganisms or higher plant precursors, whose presence depends on environmental conditions during peloid formation. Therefore, this study examines the impact of distinct depositional settings on lipid biomarker distribution in the organic matter (OM) of pre-peloids from freshwater continental (Vrujci, VRU), saline continental (Rusanda, RUS; Ovča, OVC), and marine (Sečovlje, SEC) environments using gas chromatography-mass spectrometry (GC–MS). The OM of the VRU sample is rich in higher-plant-derived odd long-chain n-alkane members, esters of tetracosanoic and octacosanoic acids, C29 regular sterane, retene, and aromatic triterpenoids with ursane or oleanane carbon skeleton. Mixed microalgae/bacteria and higher plant biomass comprise the OM of pre-peloids deposited under saline continental environment settings. A greater participation of microalgae/bacteria in the OM of OVC sample is inferred from the prevalence of short-chain n-C17 alkane and the highest content of fatty acid esters, while bimodal distribution of n-alkanes, with prevalence of long-chain homologs n-C27n-C33, short-chain C21 and C22 steranes, and C27 regular sterane in the OM of RUS sample, are pointing to mixed microbial/higher plant biomass. The accumulation of short-chain even n-alkane homologs, C28 ster-2-ene and C29 ster-2-ene sterenes, along with C27 hopene and diploptene, possessing (cyano)bacterial origin, dominate the OM of the SEC sample. All the above-mentioned compounds, recognized for possessing a broad spectrum of biological activities, may contribute to the final peloid product quality and applicability.
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来源期刊
Catena
Catena 环境科学-地球科学综合
CiteScore
10.50
自引率
9.70%
发文量
816
审稿时长
54 days
期刊介绍: Catena publishes papers describing original field and laboratory investigations and reviews on geoecology and landscape evolution with emphasis on interdisciplinary aspects of soil science, hydrology and geomorphology. It aims to disseminate new knowledge and foster better understanding of the physical environment, of evolutionary sequences that have resulted in past and current landscapes, and of the natural processes that are likely to determine the fate of our terrestrial environment. Papers within any one of the above topics are welcome provided they are of sufficiently wide interest and relevance.
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