连续光照下的光子统计与单细胞藻类培养特性研究。

IF 1.9 4区医学 Q4 BIOPHYSICS Biointerphases Pub Date : 2025-01-01 DOI:10.1116/6.0004347

Yair Zarmi

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引用次数: 0

摘要

尽管光合系统很复杂，但对于P-I曲线（生物量生产速率与通量密度）和电子传递速率曲线（光合过程第一阶段PS II向第二阶段PS I传递的激发电子传递速率与通量密度）的光子通量密度依赖性，提出了一个简单的解释。结果表明，这两个实体的光子通量密度依赖关系是光子到达PS II叶绿素天线的随机特性、光系统运行中存在约10 ms的限速时间尺度以及叶绿素天线的平均光子吸收截面积大小的直接结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Photon statistics and unicellular algae cultivation characteristics under continuous illumination.

Despite the complexity of the photosynthetic system, a simple explanation is proposed for the photon-flux density dependence of P-I curves (biomass production rate versus flux density) and electron transfer rate curves (delivery transfer rate of excited electrons from PS II, the first stage of the photosynthetic process, to the second stage, PS I, versus flux density). It is shown that the photon-flux density dependence of these two entities is a direct consequence of the stochastic nature of photon arrival times on the chlorophyll antenna of PS II, the existence of a rate-limiting time scale of about 10 ms in the operation of the photosystem, and the magnitude of the average photon absorption cross-sectional area of the chlorophyll antennae.

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来源期刊

Biointerphases 生物-材料科学：生物材料

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期刊介绍： Biointerphases emphasizes quantitative characterization of biomaterials and biological interfaces. As an interdisciplinary journal, a strong foundation of chemistry, physics, biology, engineering, theory, and/or modelling is incorporated into originated articles, reviews, and opinionated essays. In addition to regular submissions, the journal regularly features In Focus sections, targeted on specific topics and edited by experts in the field. Biointerphases is an international journal with excellence in scientific peer-review. Biointerphases is indexed in PubMed and the Science Citation Index (Clarivate Analytics). Accepted papers appear online immediately after proof processing and are uploaded to key citation sources daily. The journal is based on a mixed subscription and open-access model: Typically, authors can publish without any page charges but if the authors wish to publish open access, they can do so for a modest fee. Topics include: bio-surface modification nano-bio interface protein-surface interactions cell-surface interactions in vivo and in vitro systems biofilms / biofouling biosensors / biodiagnostics bio on a chip coatings interface spectroscopy biotribology / biorheology molecular recognition ambient diagnostic methods interface modelling adhesion phenomena.