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| 1 | Characterising the nature, evolution and origin of detachment fault in central depression belt, Qiongdongnan Basin of South China Sea: evidence from seismic reflection data显示文摘Using regional geological, newly acquired 2D and 3D seismic, drilling and well log data, especially 2D long cable seismic profiles, the structure and stratigraphy in the deep-water area of Qiongdongnan Basin are interpreted. The geometry of No.2 fault system is also re-defined, which is an important fault in the central depression belt of the deep-water area in the Qiongdongnan Basin by employing the quantitative analysis techniques of fault activity and backstripping. Furthermore, the dynamical evolution of the No.2 fault system and its controls on the central depression belt are analyzed. This study indicates that the Qiongdongnan Basin was strongly influenced by the NW-trending tensile stress field during the Late Eocene. At this time, No.2 fault system initiated and was characterized by several discontinuous fault segments, which controlled a series small NE-trending fault basins. During the Oligocene, the regional extensional stress field changed from NW-SE to SN with the oceanic spreading of South China Sea, the early small faults started to grow along their strikes, eventually connected and merged as the listric shape of the No.2 fault system as observed today. No.2 fault detaches along the crustal Moho surface in the deep domain of the seismic profiles as a large-scale detachment fault. A large-scale rollover anticline formed in hanging wall of the detachment fault. There are a series of small fault basins in both limbs of the rollover anticline, showing that the early small basins were involved into fold deformation of the rollover anticline. Structurally, from west to east, the central depression belt is characterized by alternatively arranged graben and half-graben. The central depression belt of the Qiongdongnan Basin lies at the extension zone of the tip of the V-shaped northwestern ocean sub-basin of the South China Sea, its activity period is the same as the development period of the northwestern ocean sub-basin, furthermore the emplacement and eruption of magma that originated from the mantle below the Moho surface occurred at the region between Songnan-Baodao and Changchang sags, from east to west with the early-stage spreading of the South China Sea. Therefore, this study not only helps in depicting the structural features and evolution of the deep-water basin in the Qiongdongnan Basin, but also provides the geological and structural evidence for establishing a unified model of continental margin extension and oceanic spreading. | REN Jianye ZHANG Daojun TONG Dianjun HUANG Anmin WANG Yahui LEI Chao ZUO Qianmei ZHAO Yanghui HE Weijun YANG Linlong | 2014 | Acta Oceanologica Sinica2014,33,12: | 8 |
| 2 | 树种菌根类型通过细根生物量和凋落物动态影响土壤呼吸和土壤碳储存显示文摘热带森林是高生产力但同时也是脆弱的生态系统之一。一些全球范围的造林项目计划未来十年在热带地区种植数百万棵树。树种菌根类型影响森林土壤碳储存已成为共识,但在热带地区,树种菌根类型如何影响土壤呼吸(Rs)和碳储存,目前仍知之甚少。为研究树种菌根类型对Rs和土壤碳储存的影响,本实验在一个近30年热带同质园的3种丛枝菌根(AM)树种和3种外生菌根(EM)树种的单种林中,测量了其Rs和表层20 cm的碳含量,以及有关的生物因子(如根生物量、凋落物动态、土壤微生物)和非生物因子(如微气候)。研究结果表明,AM单种林的Rs、土壤碳含量,以及凋落物周转速率和细根生物量显著高于EM单种林。分析表明,与其他生物和非生物因子比较,树种菌根类型对Rs和土壤碳含量的影响最大。进一步分析表明,菌根类型是通过细根生物量和凋落物动态(凋落物产量、凋落物现存量、凋落物周转速率)直接和间接影响Rs和土壤碳含量。本研究结果强调了树种菌根类型对森林碳循环的影响,表明在热带地区种植AM树种可能比种植EM树种更能促进土壤固碳。 | Guodong Zhang Guiyao Zhou Xuhui Zhou Lingyan Zhou Junjiong Shao Ruiqiang Liu Jing Gao Yanghui He Zhenggang Du Jianwei Tang Manuel Delgado-Baquerizo | 2023 | Journal of Plant Ecology2023,16,1: | 0 |
| 3 | Molecular Mechanisms of Spawning Habits for the Adaptive Radiation of Endemic East Asian Cyprinid Fishes显示文摘Despite the widespread recognition of adaptive radiation as a driver of speciation,the mechanisms by which natural selection generates new species are incompletely understood.The evolutionary radiation of endemic East Asian cyprinids has been proposed as evolving through a change in spawning habits,involving a transition from semibuoyant eggs to adhesive eggs in response to crosslinked river-lake system formation.Here,we investigated the molecular mechanisms that underpin this radiation,associated with egg hydration and adhesiveness.We demonstrated that semibuoyant eggs enhance hydration by increasing the degradation of yolk protein and accumulation of Ca2+and Mga+ions,while adhesive eggs improve adhesiveness and hardness of the egg envelope by producing an adhesive layer and a unique 4th layer to the egg envelope.Based on multiomics analyses and verification tests,we showed that during the process of adaptive radiation,adhesive eggs downregulated the'vitellogenin degradation pathway','zinc metalloprotease pathway,'and'ubiquitin-proteasome pathway'and the pathways of Ca^(2+)and Mg^(2+)active transport to reduce their hydration.At the same time,adhesive eggs upregulated the crosslinks of microfilament-associated proteins and adhesive-related proteins,the hardening-related proteins of the egg envelope,and the biosynthesis of glycosaminoglycan in the ovary to generate adhesiveness.These findings illustrate the novel molecular mechanisms associated with hydration and adhesiveness of freshwater fish eggs and identify critical molecular mechanisms involved in the adaptive radiation of endemic East Asian cyprinids.We propose that these key egg attributes may function as“magic traits”in this adaptive radiation. | Feng Chen Yeke Wang Jun He Liang Chen Ge xue Yan Zhao Yanghui Peng Carl mith Jia Zhang Jun Chen Ping Xie | 2023 | Research2023,,1: | 0 |
| 4 | Targeting autophagy and beyond:Deconvoluting the complexity of Beclin-1 from biological function to cancer therapy显示文摘AbstracBteclin-1 is the firstly-identified mammalian protein of the autophagy machinery,which functions as a molecular scaffold for the assembly of PI3KC3(class II phosphatidylinositol 3 kinase)complex,thus controlling autophagy induction and other cellular trafficking events.Notably,there is mounting evidence establishing the implications of Beclin-1 in diverse tumorigenesis processes,including tumor suppression and progression as well as resistance to cancer therapeutics and CSC(cancer stem-like cell)maintenance.More importantly,Beclin-1 has been confirmed as a potential target for the treatment of multiple cancers.In this review,we provide a comprehensive survey of the structure,functions,and regulations of Beclin-1,and we discuss recent advances in understanding the controversial roles of Beclin-1 in oncology.Moreover,we focus on summarizing the targeted Beclin-1-regulating strategies in cancer therapy,providing novel insights into a promising strategy for regulating Beclin-1 to improvecancer therapeutics in thefuture. | Jing Ye Jin Zhang Yanghui Zhu Lian Wang Xian Jiang Bo Liu Gu He | 2023 | Acta Pharmaceutica Sinica B2023,13,12: | 0 |