A model of algal‐virus population dynamics reveals underlying controls on material transfer

A model of algal‐virus population dynamics reveals underlying controls on material transfer
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藻类病毒种群动态模型揭示了物质转移的潜在控制

DOI:
10.1002/lno.12256
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发表时间:
2022
影响因子:
4.5
通讯作者:
Talmy, David
Talmy, David
中科院分区:
地球科学1区
文献类型:
--
作者:
Hinson, Audra;Papoulis, Spiro;Fiet, Lucas;Knight, Margaret;Cho, Priscilla;Szeltner, Brielle;Sgouralis, Ioannis;Talmy, David

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病毒对水生系统中营养循环和能量转移的影响很重要,但仍在确定中。我们开发了一个动态模型来捕捉藻类宿主及其病毒的种群动态。该模型与实验室一步感染实验期间种群动态的文献数据拟合。模型参数的人口动态进行了量化,在不同的藻类群体,涵盖7个不同的藻类,14个不同的宿主属,和32个不同的病毒基因型。评估了作为群体动态基础的性状之间存在权衡的假设。我们报告了一种可能的病毒大小依赖性权衡,即病毒可以启动感染的速率与裂解时从宿主向病毒的碳转移效率之间的权衡。我们假设,由于分子扩散速率较慢,大病毒感染速率较慢,通过提高宿主资源的利用率来补偿。我们的方法为理解和量化不同自然群落中的病毒活性提供了一个定量特征框架。
The influence of viruses on nutrient cycles and energy transfer in aquatic systems is important, yet still being determined. We developed a dynamic model to capture the population dynamics of algal hosts and their viruses. The model was fitted to literature data of population dynamics during laboratory one‐step infection experiments. Model parameters that underlie population dynamics were quantified in diverse algal groups, covering 7 different algal classes, 14 different host genera, and 32 different virus genotypes. The hypothesis that trade‐offs exist between traits that underlie population dynamics was evaluated. We report a possible virus size‐dependent trade‐off between the rate at which viruses can initiate infection, and the efficiency of carbon transfer from hosts to viruses upon lysis. We hypothesize that slower rates of infection in large viruses, due to slower rates of molecular diffusion, are compensated by enhanced utilization of host resources. Our approach provides a quantitative trait‐framework for understanding and quantifying virus activity in diverse natural communities.
北海以颗石藻为主的水华中的病毒动态
DOI: 10.1016/s0967-0645(02)00065-6
发表时间: 2002
影响因子: 3
作者:
W. H. Wilson;G. Tarran;M. Zubkov
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发表时间: 2012
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DOI: --
发表时间: 2019
影响因子: 5.1
作者:
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DOI: 10.1016/j.virol.2005.07.002
发表时间: 2005-10-10
期刊: VIROLOGY
影响因子: 3.7
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DOI: 10.1006/viro.2001.1161
发表时间: 2001-11-25
期刊: VIROLOGY
影响因子: 3.7
作者:
Sandaa, RA;Heldal, M;Bratbak, G
通讯作者: Bratbak, G