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Refuge size variation and potential for sperm competition in Wellington tree weta

Current Zoology 2019年第3期65卷 213-223页

作者： Tina W.wey Clint D. KELLY Departement des Sciences Biologiques Universite du Quebec a Montreal Montreal Quebec H3C 3P8 Canada Departement de Medecine de Famille et de Medecine D'urgence Faculte de Medecine et des Sciences de la Sante Universite de Sherbrooke Quebec J1H 5N4 Canada

Ecological variation in resources can in flue nee the distributi on and en counter rates of potential mates and competitors and, con sequently, the opport unity for sexual selection. Factors that influence the likelihood that females mate multiply could also affect the potential for sperm competition. In Wellington tree weta (Hemideina crassidens, plural "weta"), the size of tree cavities (called galleries) used as refuges affects weta distribution and thus the opport unity for sexual selection and selection on male weaponry size. We examined the predicted effects of gallery size and male weap onry size on the potential for sperm competition. We asked if gallery size in flue need the potential for multiple mating by females and potential for sperm competition, if male weaponry size was associated with relative expected sperm competition intensity (SCI), and if estimated male mating success was correlated with pote ntial SCI. To qua ntify relative competitive envir on merits of males, we created and analyzed networks of potential competitors based on which males could have mated with the same females. We found that small galleries had higher potential for female multiple mating and higher potential for sperm competition. Size of male weaponry was not associated with expected relative SCI. Regardless of gallery size, males with more potential mates were expected to face lower expected relative sperm competition. Thus, in this system, variation in the size of available refuges is likely to in flue nee the pote ntial for sperm competiti on, in a way that we might expect to in crease variation in overall reproductive success.

关键词： ecological variation mating dynamics opportunity for sperm competition polyandry sexual selection

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Bioenergetic alteration in gastrointestinal cancers:The good,the bad and the ugly

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World journal of Gastroenterology 2023年第29期29卷 4499-4527页

作者： Yu-De Chu Chun-Wei Chen Ming-Wei Lai Siew-Na Lim wey-Ran Lin Liver Research Center Linkou Chang Gung Memorial HospitalTaoyuan 333TaiwanChina Department of Gastroenterology and Hepatology Linkou Chang Gung Memorial HospitalTaoyuan 333TaiwanChina Department of Pediatrics Linkou Chang Gung Memorial HospitalTaoyuan 333TaiwanChina Department of Neurology Linkou Chang Gung Memorial HospitalTaoyuan 333TaiwanChina Department of Medicine Chang Gung UniversityTaoyuan 333TaiwanChina

Cancer cells exhibit metabolic reprogramming and bioenergetic alteration,utilizing glucose fermentation for energy production,known as the Warburg ***,there are a lack of comprehensive reviews summarizing the metabolic reprogramming,bioenergetic alteration,and their oncogenetic links in gastrointestinal(GI)***,the efficacy and treatment potential of emerging anticancer drugs targeting these alterations in GI cancers require further *** review highlights the interplay between aerobic glycolysis,the tricarboxylic acid(TCA)cycle,and oxidative phosphorylation(OXPHOS)in cancer cells,as well as hypotheses on the molecular mechanisms that trigger this *** role of hypoxia-inducible transcription factors,tumor suppressors,and the oncogenetic link between hypoxia-related enzymes,bioenergetic changes,and GI cancer are also *** review emphasizes the potential of targeting bioenergetic regulators for anti-cancer therapy,particularly for GI *** the potential of targeting bioenergetic regulators for GI cancer therapy,the review categorizes these regulators into aerobic glycolysis/lactate biosynthesis/transportation and TCA cycle/coupled *** also detail various anti-cancer drugs and strategies that have produced pre-clinical and/or clinical evidence in treating GI cancers,as well as the challenges posed by these *** we highlight that understanding dysregulated cancer cell bioenergetics is critical for effective treatments,although the diverse metabolic patterns present challenges for targeted *** research is needed to comprehend the specific mechanisms of inhibiting bioenergetic enzymes,address side effects,and leverage high-throughput multi-omics and spatial omics to gain insights into cancer cell heterogeneity for targeted bioenergetic therapies.

关键词： Energy metabolism Mitochondria Hypoxia Oxidative phosphorylation Glycolysis Gastrointestinal neoplasms

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控制卤化银晶体大小分布的沉淀新技术

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感光材料 1992年第2期 10-15页

作者： j.S.wey 黄力凡厦门感光公司研究所

同时注入硝酸银、卤盐溶液和卤化银晶核的三注沉淀新技术已开发出来。用这种新法制备的卤化银乳剂可得到预期的晶体大小分布。它不仅能控制中等晶体的大小分布,还能控制最大晶体和最小晶体的尺寸。根据总体平衡方程和质量平衡方程,我们... 详细信息

同时注入硝酸银、卤盐溶液和卤化银晶核的三注沉淀新技术已开发出来。用这种新法制备的卤化银乳剂可得到预期的晶体大小分布。它不仅能控制中等晶体的大小分布,还能控制最大晶体和最小晶体的尺寸。根据总体平衡方程和质量平衡方程,我们为这个沉淀过程建立了理论模型。用注入晶核的三注技术制备的八面体AgBr乳剂,具有独特的晶体大小分布,这是常规的沉淀技术无法做到的。在几种AgBr沉淀条件下,理论预测与实验结果都非常一致。这可以克服现行沉淀技术制备卤化银乳剂在晶体大小分布方面的局限性。

关键词：卤化银晶体分布控制

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AgBrT 颗粒横向生长动力学

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感光材料 1989年第5期 14-20,25页

作者： P.H.Karpinski j.S.wey 胡家源

引言在 AgBr 颗粒生长阶段,过量 Br^-离子的存在,将极大影响最终的颗粒晶形。当溴余量足够大时,可以得到较大的平均粒径与粒厚之比,亦即具有高形态比的 AgBr 晶体。这种晶型的颗粒通常被称为 T-颗粒。由于T 颗粒的一些特性,如在同等含... 详细信息

引言在 AgBr 颗粒生长阶段,过量 Br^-离子的存在,将极大影响最终的颗粒晶形。当溴余量足够大时,可以得到较大的平均粒径与粒厚之比,亦即具有高形态比的 AgBr 晶体。这种晶型的颗粒通常被称为 T-颗粒。由于T 颗粒的一些特性,如在同等含银量下,其较大的表面积和特殊的光学性能,已使它在感光材料乳剂技术中成为一种很有用的晶型。

关键词：溴化银颗粒生长动力学乳剂

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Involvement of Lipid Rafts and Cellular Actin in AcMNPV GP64 Distribution and Virus Budding

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Virologica Sinica 2009年第4期24卷 333-349页

作者： F. j. Haines C. M. Griffiths R. D. Possee C. R. Hawes L. A. King School of Life Science Oxford Brookes University Veterinary Laboratories Agency-wey-bridge New Haw Addlestone Surrey KT15 3NB UK. NERC Centre for Ecology & Hydrology (Oxford)

GP64 is the major envelope glycoprotein associated with the budded virus (BV) of Autographa californica nucleopolyhedrovirus (AcMNPV) and is essential for attachment and budding of BV particles. Confocal microscopy and flotation assays established the presence of lipid raft domains within the plasma membranes of AcMNPV-infected Sf9 cells and suggested the association of GP64 with lipid rafts during infection. GP64 and filamentous actin (F-actin) were found to co-localise at the cell cortex at 24 and 48 hpi and an additional restructuring of F-actin during infection was visualised, resulting in a strongly polarised distribution of both F-actin and GP64 at the cell cortex. Depletion of F-actin, achieved by treatment of Sf9 cells with latrunculin B (LB), resulted in the redistribution of GP64 with significant cytoplasmic aggregation and reduced presence at the plasma membrane. Treatment with LB also resulted in reduced production of BV in Sf9 cells. Analysis of virus gene transcription confirmed this reduction was not due to decreased trafficking of nucleocapsids to the nucleus or to decreased production of infectious progeny nucleocapsids. Reduced BV production due to a lack of GP64 at the plasma membrane of AcMNPV-infected Sf9 cells treated with LB, suggests a key role for F-actin in the egress of BV.

关键词： Autographa californica nucleopolyhedrovirus (AcMNPV) Actin Lipid rafts Egress

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