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Article
Acetylation of Kapok Fibres as an Oil Absorbent for Oil Spill Mitigation
Oil spills are significant environmental events that can harm marine life and human health globally. Booms, skimmers, dispersants and burning have drawbacks such as instability in strong currents and high cost...
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Article
Open AccessEnhancement of diatom growth and phytoplankton productivity with reduced O2 availability is moderated by rising CO2
Many marine organisms are exposed to decreasing O2 levels due to warming-induced expansion of hypoxic zones and ocean deoxygenation (DeO2). Nevertheless, effects of DeO2 on phytoplankton have been neglected due t...
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Article
Knockout of Cia5 gene using CRISPR/Cas9 technique in Chlamydomonas reinhardtii and evaluating CO2 sequestration in control and mutant isolates
CRISPR/Cas9 technology is one of the common methods of genome editing and targeted gene mutation, which has recently been used for manipulating microalgae such as Chlamydomonas reinhardtii. Besides, this technolo...
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Article
FTIR combined with chemometric tools — a potential approach for early screening of grazers in microalgal cultures
Microalgal predation is one of the imminent threats for mass algae cultivation in open ponds. Invasion of predators results in total clearance of algal biomass within 24–48 h. Detection of contamination in mic...
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Article
The inhibitory effects of the antifouling compound Irgarol 1051 on the marine diatom Skeletonema sp. across a broad range of photosynthetically active radiation
The release of anthropogenic organic pollutants has resulted in extensive environmental risks to coastal waters. Among pollutants released, the most common antifoulant, Irgarol 1051, is an effective inhibitor ...
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Chapter
Carbon Dioxide vs. Bicarbonate Utilisation
While CO2 is the external inorganic carbon (Ci) form used for photosynthesis in terrestrial plants, the higher concentration of bicarbonate (HCO3−) in most water bodies renders this ionic Ci form the preferred ex...
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Chapter
Fluorescence Measurement Techniques
Chlorophyll fluorometers are constructed such that the immediate outcomes of the measurements provide information on quantum yields (Y) of electrons passing through photosystem II (PSII). If the photosyntheticall...
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Chapter
Basic Concepts and Key Parameters of Chlorophyll Fluorescence
Photosynthetic rates can be measured in several different ways. Classically, phytoplankton productivity has been measured by uptake rates of 14C-labelled inorganic carbon (Ci, i.e. CO2 and HCO3−), which is a sens...
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Article
A perspective on the current status of approaches for early detection of microalgal grazing
Consumption of microalgae, as prey, by predatory zooplankton is a major ecological process in aquatic environments. The presence of predators in large-scale cultivation, such as in open ponds, results in a dev...
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Article
Decreased motility of flagellated microalgae long-term acclimated to CO2-induced acidified waters
Motility plays a critical role in algal survival and reproduction, with implications for aquatic ecosystem stability. However, the effect of elevated CO2 on marine, brackish and freshwater algal motility is uncle...
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Article
Photosynthetic characterization of two Nannochloropsis species and its relevance to outdoor cultivation
Despite the increased interest in exploring the potential of algal biomass production for food stock and renewable energy, very little work has been done in develo** reliable screening protocols to enable th...
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Article
Effect of elevated carbon dioxide and nitric oxide on the physiological responses of two green algae, Asterarcys quadricellulare and Chlorella sorokiniana
Algae have the potential to capture carbon dioxide (CO2) and nitric oxide (NO) from flue gases. However, the effects of high concentrations of these gases on the photophysiology of algae are poorly understood. To...
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Chapter
Light-Driven Oxygen Consumption in the Water-Water Cycles and Photorespiration, and Light Stimulated Mitochondrial Respiration
Oxygen uptake in illuminated photosynthetic algae can be measured using 18O2 or (with some reservations) photosystem II electron flux measured by fluorescence corrected for electron flux to sinks other than O2. W...
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Chapter
Acquisition of Inorganic Carbon by Microalgae and Cyanobacteria
Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and the Calvin cycle are the dominant features of inorganic carbon assimilation in all cyanobacteria and microalgae. Rubisco carboxylase shows a relati...
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Chapter
Structural and Biochemical Features of Carbon Acquisition in Algae
Inorganic carbon assimilation in algae depends ultimately on the activity of ribulose-1,5-bisphosphate carboxylase oxygenase (Rubisco) and the Calvin-Benson-Bassham Cycle (Photosynthetic Carbon Reduction Cycle...
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Article
Ok Tedi copper mine, Papua New Guinea, stimulates algal growth in the Fly River
Fish populations utilised by riparian populations along the Fly River, Papua New Guinea (PNG), downstream of the Ok Tedi gold and copper mine have markedly declined in species richness (between 21 and 90%) and...
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Article
Bacterial fermentation and respiration processes are uncoupled in anoxic permeable sediments
Permeable (sandy) sediments cover half of the continental margin and are major regulators of oceanic carbon cycling. The microbial communities within these highly dynamic sediments frequently shift between oxi...
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Chapter
Metal Pollution in Water: Toxicity, Tolerance and Use of Algae as a Potential Remediation Solution
Metals are persistent pollutants which, in consequence of their accumulation in water bodies, can exert dangerous effects on human health and on the ecosystem. Conventional techniques used for their removal ar...
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Article
Algal biophotovoltaic (BPV) device for generation of bioelectricity using Synechococcus elongatus (Cyanophyta)
The exploitation of renewable energy sources for delivering carbon neutral or carbon negative solutions has become challenging in the current era because conventional fuel sources are of finite origins. Algae ...
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Article
Variation in cell size of the diatom Coscinodiscus granii influences photosynthetic performance and growth
Cell size has implications for the package effect in photon absorption as well as for metabolic scaling of metabolism. In this study, we have avoided species-related differences by using isolates of the marine...
