Biosystems最新文献_第2页

Coacervates meet the RNP-world: liquid-liquid phase separation and the emergence of biological compartmentalization 凝聚满足rnp世界：液-液相分离和生物分区化的出现

IF 2 4区生物学

Biosystems Pub Date : 2025-05-03 DOI: 10.1016/j.biosystems.2025.105480

Francisco Prosdocimi , Savio Torres de Farias

引用次数: 0

A call for research on the basis for polygonal pleomorphism in archaea 基于古生菌多面体多形性的研究呼吁

IF 2 4区生物学

Biosystems Pub Date : 2025-05-02 DOI: 10.1016/j.biosystems.2025.105478

Richard Gordon

引用次数: 0

Stationary periodic patterns in a model of growing population of motile bacteria 运动细菌不断增长的模型中的固定周期模式

IF 2 4区生物学

Biosystems Pub Date : 2025-05-01 DOI: 10.1016/j.biosystems.2025.105465

Valentina Bucur, Bakhtier Vasiev

引用次数: 0

Statistical algorithms for the analysis of deleterious genetic mutations 用于分析有害基因突变的统计算法

IF 2 4区生物学

Biosystems Pub Date : 2025-04-30 DOI: 10.1016/j.biosystems.2025.105463

Laurent Serlet, Andrzej Stos, Fabrice Kwiatkowski

引用次数: 0

Effects of CikA and SasA co-regulation on cyanobacterial circadian clock CikA和SasA共同调控对蓝藻生物钟的影响

IF 2 4区生物学

Biosystems Pub Date : 2025-04-30 DOI: 10.1016/j.biosystems.2025.105468

Ying Li, Yao Xu

{"title":"Effects of CikA and SasA co-regulation on cyanobacterial circadian clock","authors":"Ying Li, Yao Xu","doi":"10.1016/j.biosystems.2025.105468","DOIUrl":"10.1016/j.biosystems.2025.105468","url":null,"abstract":"<div><div>Cyanobacterial circadian clock is made up of three proteins, KaiA, KaiB and KaiC. KaiA binds to the A-loop to actives the autophosphorylation of KaiC, while KaiB sequesters KaiA from the A-loop to weaken the activity of KaiA. Thus a circadian oscillator of KaiC phosphorylation generates. Recent experiments have found that CikA and SasA both play crucial roles in cyanobacterial circadian clock. They participate in the output pathway and regulate the activity of transcription factors of the core oscillator. However, the specific impact of the regulation of CikA and SasA on the system is still far from clear. To address these questions, we develop an extended mathematical model for cyanobacterial circadian clock including CikA and SasA regulation. The numerical simulation results indicate that CikA and SasA have opposite effects on the system, and the two complement each other to maintain the balance of the system. Specifically, as the concentration of SasA increases, the period and amplitude increase, and the period sensitivity to parameters, phase shift caused by dark pulses and entrainment ability are all decrease. The regulation of CikA has the opposite impact on the above aspects. Based on these results, we can adjust certain indicators of the system by adjusting the concentration of CikA or SasA. The research method in this article can provide ideas for studying the effects of other proteins on the circadian clock. The findings supplement biological studies and provide a theoretical reference for biological research. It helps us gain a deeper understanding of the dynamic mechanism of cyanobacteria circadian clock.</div></div>","PeriodicalId":50730,"journal":{"name":"Biosystems","volume":"252 ","pages":"Article 105468"},"PeriodicalIF":2.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical oscillatory reactions with proteinoids 与类蛋白的化学振荡反应

IF 2 4区生物学

Biosystems Pub Date : 2025-04-29 DOI: 10.1016/j.biosystems.2025.105469

Shunsuke Ito

{"title":"Chemical oscillatory reactions with proteinoids","authors":"Shunsuke Ito","doi":"10.1016/j.biosystems.2025.105469","DOIUrl":"10.1016/j.biosystems.2025.105469","url":null,"abstract":"<div><div>This study aimed to investigate the potential of proteinoids to act as substrates for chemical oscillatory reactions. Proteinoids are thermally polymerized polymers of multiple amino acids, and their unique physicochemical properties make them suitable substrates in chemical vibration reactions. To this end, experiments were carried out using the Belousov–Zhabotinsky (BZ) and Briggs–Rauscher (BR) reactions as models, with the proteinoids acting as substrates and the resulting cyclic color changes and redox potential fluctuations being observed. The results demonstrated that specific proteinoids (PV, AEV and APV) exhibited oscillatory behavior in the BZ reaction, with PV exhibiting the highest degree of oscillation and activation energies similar to those of the conventional BZ reaction. In contrast, the BR reaction exhibited cyclic behavior exclusively when DCP was employed as a substrate, suggesting that the molecular structure of the proteinoid exerts a profound influence on its substrate properties. Notably, no oscillatory reactions were observed in the amino acid mixture utilized as a control experiment, underscoring the distinctive nature of proteinoids as unique macromolecules capable of triggering chemical oscillatory reactions. These findings indicate that proteinoids may serve as promising models for investigating the origin and early evolution of life. This research broadens the scope for exploring dynamic molecular systems using proteinoids, offering new avenues for research in life sciences and chemistry.</div></div>","PeriodicalId":50730,"journal":{"name":"Biosystems","volume":"252 ","pages":"Article 105469"},"PeriodicalIF":2.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring cooperation evolution in biological and social systems through donation and moral sentiment 通过捐赠和道德情感探索生物和社会系统的合作进化

IF 2 4区生物学

Biosystems Pub Date : 2025-04-28 DOI: 10.1016/j.biosystems.2025.105462

Jianyu Pu, Jiqin Li

{"title":"Exploring cooperation evolution in biological and social systems through donation and moral sentiment","authors":"Jianyu Pu, Jiqin Li","doi":"10.1016/j.biosystems.2025.105462","DOIUrl":"10.1016/j.biosystems.2025.105462","url":null,"abstract":"<div><div>This study explores how donation mechanisms and moral sentiment influence the evolution of cooperation in biological and social systems. Using an evolutionary game theory framework, we model a spatial system where individuals can either cooperate or defect, examining how resource transfers from wealthier to poorer individuals shape cooperative dynamics. We introduce a moral sentiment parameter that grants cooperators intrinsic psychological benefits, offsetting the cost of donation and enhancing their overall fitness. Our findings reveal that moderate donation levels significantly stabilize cooperation, particularly in environments with strong incentives to defect. Moreover, moral sentiment bolsters cooperative strategies by making donation more sustainable. The interplay between donation and moral sentiment produces a nonlinear effect, where their combined influence promotes cooperation more effectively than either factor alone. Additionally, we analyze the spatial spread of cooperation, showing that moral sentiment plays a crucial role in maintaining and expanding cooperative behavior across a network. These insights contribute to a deeper understanding of how social and moral factors shape cooperation, with implications for both natural and human communities.</div></div>","PeriodicalId":50730,"journal":{"name":"Biosystems","volume":"252 ","pages":"Article 105462"},"PeriodicalIF":2.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum information as the scientific basis for the explanation of human consciousness and its evolution 量子信息是解释人类意识及其进化的科学基础

IF 2 4区生物学

Biosystems Pub Date : 2025-04-25 DOI: 10.1016/j.biosystems.2025.105467

Thomas Görnitz

{"title":"Quantum information as the scientific basis for the explanation of human consciousness and its evolution","authors":"Thomas Görnitz","doi":"10.1016/j.biosystems.2025.105467","DOIUrl":"10.1016/j.biosystems.2025.105467","url":null,"abstract":"<div><div>A scientific explanation of consciousness and its evolution has become possible by a generalized quantum information concept. Crucial to this is a new understanding of matter and energy.</div><div>Our consciousness, being an information structure, processes the information that we absorb from our bodies and our environment. This information reaches us as properties of material objects and the massless quanta of light, the photons.</div><div>One of the properties of matter is motion – physically, kinetic energy. Einstein's E = mc<sup>2</sup> shows that motion can be converted into matter. Matter is thus equivalent to one of its properties.</div><div>The mathematical-physical structure of quantum theory has opened up a comprehensive view of the construction of complex systems from simple structures. Such a construction can and should begin with the simplest quantum structure, a quantum bit. Matter and also photons can thereby ultimately be understood as manifestations of abstract quantum information.</div><div>Abstract, i.e. still meaning-free, and absolute, i.e. cosmically based, bits of quantum information, AQIs, provide the common basis for consciousness, energy and matter. This explains the mutual influences between matter, energy and the information that is meaningful for a living being.</div></div>","PeriodicalId":50730,"journal":{"name":"Biosystems","volume":"252 ","pages":"Article 105467"},"PeriodicalIF":2.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Holistic system analysis of the energetic power and efficiency of animal production 动物生产能量和效率的整体系统分析

IF 2 4区生物学

Biosystems Pub Date : 2025-04-23 DOI: 10.1016/j.biosystems.2025.105470

Douglas S. Glazier

{"title":"Holistic system analysis of the energetic power and efficiency of animal production","authors":"Douglas S. Glazier","doi":"10.1016/j.biosystems.2025.105470","DOIUrl":"10.1016/j.biosystems.2025.105470","url":null,"abstract":"<div><div>Major features of living systems are the rates (power) and ratios (efficiency) of their energy uptake and use, whose relationships are not entirely predictable from those seen in nonliving physical systems. Although the energetic power and efficiency of production (growth and reproduction) are known to respond to differences in ration level, diet, and other intrinsic and extrinsic factors, why these responses vary considerably among animals is little understood and often ignored in theoretical models. In this exploratory study I show that a holistic analysis of how the different responses of the efficiencies of resource uptake and use systems to variation in food levels and associated rates of energy flow (power) helps one predict the ration-dependent efficiency of conversion of ingested energy into growth and reproduction. When the relative influence of the efficiency of assimilation (resource supply) predominates (as in many herbivores), the efficiency of converting ingested energy into production tends to vary negatively with ration level and production power, whereas when the relative influence of the efficiency of converting assimilated energy into biological tissues (resource use) predominates (as in carnivores), the ingestive production efficiency tends to vary positively with ration level and production power. I also extend this analysis by showing how studies at multiple hierarchical levels of biological organization, from cells to ecosystems, may improve our understanding of the covariation of production efficiency with ration level or overall rate of energy flow (power). A new comprehensive theory of the power and efficiency of living systems is advocated.</div></div>","PeriodicalId":50730,"journal":{"name":"Biosystems","volume":"252 ","pages":"Article 105470"},"PeriodicalIF":2.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 2 4区生物学

Biosystems Pub Date : 2025-04-22 DOI: 10.1016/j.biosystems.2025.105466

Richard Gordon

引用次数: 0