scholarly journals Photosynthetic Light Utilization Efficiency, Photosystem II Heterogeneity, and Fluorescence Quenching in Chlamydomonas reinhardtii during the Induction of the CO2-Concentrating Mechanism

1992 ◽  
Vol 100 (2) ◽  
pp. 685-691 ◽  
Author(s):  
Stefan Falk ◽  
Kristin Palmqvist
Keyword(s):  
Photosystem Ii ◽  
Fluorescence Quenching ◽  
Chlamydomonas Reinhardtii ◽  
Utilization Efficiency ◽  
Co2 Concentrating Mechanism ◽  
Light Utilization Efficiency ◽  
Concentrating Mechanism ◽  
Light Utilization ◽  
Photosystem Ii Heterogeneity

Seasonal variation of water-column light utilization efficiency for primary production in Saroma-ko Lagoon

2021 ◽  
pp. 1-9
Author(s):  
Akihiro Shiomoto ◽  
Yushi Kamuro
Keyword(s):  
Seasonal Variation ◽  
Primary Production ◽  
Water Column ◽  
Fresh Water ◽  
Utilization Efficiency ◽  
Commercial Activity ◽  
The Sustainable Development ◽  
Light Utilization Efficiency ◽  
Light Utilization ◽  
Sunlight Intensity

Abstract In Saroma-ko Lagoon, where scallop aquaculture is a thriving commercial activity, monitoring primary production is essential for determining the amount of scallops that can be farmed. Using the primary production data obtained so far, we calculated Ψ, an index of water-column light utilization efficiency, and clarified its seasonal variation. Ψ tended to be lower in the spring bloom season (February–April), and higher in the late autumn to winter (October–December). Low chlorophyll-normalized production, an index of growth rate, resulted in lower values, while low daily irradiance resulted in higher values. The values of Ψ from our study had a range of 0.05–1.42 gC gChl-a−1 mol photons−1 m2 (N = 56). These values were within the previously reported range of 0.07–1.92 (gC gChl-a−1 mol photons−1 m2) for seawater and fresh water worldwide. Therefore, it is likely that Ψ varies from 0.05–2 gC gChl-a−1 mol photons−1 m2, being affected by conditions of phytoplankton growth and sunlight intensity, regardless of whether samples are collected from seawater or fresh water. Using the median Ψ value of 0.45 gC gChl-a−1 mol photons−1 m2 obtained in this study, primary production was 0.3–3.5 times the actual production at Saroma-ko Lagoon. Using this method, primary production can be easily and constantly monitored, facilitating the sustainable development of scallop aquaculture.

Light utilization efficiency in photosynthetic microbial mats

2011 ◽  
Vol 14 (4) ◽  
pp. 982-992 ◽  
Author(s):  
Mohammad A. A. Al-Najjar ◽  
Dirk de Beer ◽  
Michael Kühl ◽  
Lubos Polerecky
Keyword(s):  
Microbial Mats ◽  
Utilization Efficiency ◽  
Light Utilization Efficiency ◽  
Light Utilization

scholarly journals Changes in lipid and carotenoid metabolism in Chlamydomonas reinhardtii during induction of CO2-concentrating mechanism: Cellular response to low CO2 stress

2020 ◽  
Vol 52 ◽  
pp. 102099
Author(s):  
Ilka N. Abreu ◽  
Anna Aksmann ◽  
Amit K. Bajhaiya ◽  
Reyes Benlloch ◽  
Mario Giordano ◽  
...  
Keyword(s):  
Chlamydomonas Reinhardtii ◽  
Cellular Response ◽  
Co2 Concentrating Mechanism ◽  
Low Co2 ◽  
Carotenoid Metabolism ◽  
Concentrating Mechanism

Pyrenoid Morphology in Rubisco and CO2 Concentrating Mechanism Mutants of Chlamydomonas Reinhardtii

1995 ◽  
pp. 4487-4490 ◽  
Author(s):  
Margaret C. Henk ◽  
Mamta Rawat ◽  
Stephanie Y. Hugghins ◽  
Lara L. Lavigne ◽  
Ziyadin Ramazanov ◽  
...  
Keyword(s):  
Chlamydomonas Reinhardtii ◽  
Co2 Concentrating Mechanism ◽  
Concentrating Mechanism
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