Characterization of Alkane-Producing <i>Nostoc</i> sp. Isolated from a Summer Bloom for Biofuel Potential

Hong, Ji Won; Kim, O. H.; Jo, Seung-Woo; Kim, H.; Jeong, Mi Rang; Yoon, Ho-Sung

doi:10.1166/jbmb.2018.1757

Cited by 4 publications

(6 citation statements)

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“…was higher at a broad range of pH 5-12 (Kim et al 2015, Vazquez-Martinez et al 2018. Other Nostocales order members, such as Nostoc spp., isolated from Lake Daecheong, South Korea, also showed growth at a wide range of pH 4-12, while optimal growth was achieved at pH 7 (Hong et al 2018). Neutral or slightly alkaline environments favor cyanobacterial growth (Agrawal 2012).…”

Section: Discussionmentioning

confidence: 99%

Influence of Abiotic Factors on the Growth of Cyanobacteria Isolated from Nakdong River, South Korea¹

Yadav

Anam

Ahn

2021

Journal of Phycology

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Changes in physico‐chemical factors due to natural climate variability and eutrophication could affect the cyanobacterial growth patterns in aquatic systems that may cause environmental health problems. Based on morphological and 16S rRNA gene analysis, three cyanobacterial species isolated for the first time from the Nakdong River water sample in South Korea were identified as Amazoninema brasiliense, Microcystis elabens, and Nododsilinea nodulosa. The variations in temperature, pH, nitrogen, or phosphorus levels significantly impacted the cyanobacterial growth patterns. The optimal temperature range for the growth of isolates was from 25–30°C. A neutral or weak alkaline environment favored growth; however, A. brasiliense resulted in 44.2–87.5% higher biomass (0.75 g · L−1 as dry solids, DS) and growth rate (0.24 · d−1) at pH 7 than the other isolates (0.4–0.52 g DS · L−1, 0.16–0.19 · d−1). The increased nitrate‐nitrogen (NO3‐N) concentrations significantly (P < 0.05) favored biomass production and growth rate for A. brasiliense and M. elabens, respectively, and the maximum growth rate was observed for A. brasiliense at 3.5 mg NO3‐N · L−1. The orthophosphate concentration (PO4–P) from 0.1 to 0.5 mg PO4‐P · L−1 increased the growth of the isolates. These observations suggest that isolate growth rates in water bodies can vary depending on different physico‐chemical parameters. This study contributes to the further understanding of the growth of microalgae in natural freshwater bodies under fluctuating environmental conditions and aquatic ecosystem stability.

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Section: Discussionmentioning

confidence: 99%

Influence of Abiotic Factors on the Growth of Cyanobacteria Isolated from Nakdong River, South Korea¹

Yadav

Anam

Ahn

2021

Journal of Phycology

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“…Phormidium autumnale KNUA026 and Nostoc sp. grew well in a wide range of pH (i.e., pH 6–12) (Chang et al., 2013; Hong et al., 2018). Alkalization of BG‐11 media increased the CA activity of P. autumnale and Nostoc sp.…”

Section: Discussionmentioning

confidence: 99%

“…The excessive growth of cyanobacteria can release various toxins and secondary metabolites, which ultimately alter biodiversity, destroy the food web, decrease water quality, and threaten human and water environmental health worldwide (Liu et al., 2020; Raven et al., 2020). Most cyanobacteria that produce toxic substances are Microcystis , Phormidium , Nostoc , and Oscillatoria species, which frequently co‐occur in aquatic ecosystems (Hong et al., 2018; Kimambo et al., 2019; Turner et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Nostoc sp. grows well at 20–30 °C and at pH 4.0–12 (Hong et al., 2018). The maximum growth rate of Spirulina platensis was reported at a light intensity of 2,000 lux and 35 °C (Kumar et al., 2011).…”

Section: Introductionmentioning

confidence: 99%

“…In Korea, eutrophication and climate change have been identified as important causes of CyanoHABs in the four major rivers (Han, Geum, Nakdong, and Yeongsan), which are the primary water resources for agricultural, drinking, and industrial purposes. The most predominant bloom‐forming cyanobacterial species in rivers were Microcystis , Anabaena , Oscillatoria , and Phormidium (Hong et al., 2018; Hur et al., 2013; Lee et al., 2018). Several studies examined how different environmental conditions affect the cyanobacterial composition and the production of harmful secondary metabolites in rivers (Kim et al., 2017; Lee et al., 2018; Park et al., 2018; Srivastava et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

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Comparative growth characteristics and interspecific competitive interaction of two cyanobacteria, Phormidium autumnale and Nostoc sp.

2021

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This study examined the growth characteristics and competitive interaction of two cyanobacteria, Phormidium autumnale GJ_2B_I1 and Nostoc sp. DS_2B_I1, which were newly isolated from a southeast river (Nakdong) during the cyanobacterial harmful algal bloom (CyanoHAB) season in Korea. As major environmental parameters, water temperature (25 and 30 °C) and alkalinity (19–78 mg CaCO3 L–1) and nitrate concentration (1.5–3.5 mg NO3–N L–1) were selected based on the water environmental monitoring data during the CyanoHAB season. Unlike P. autumnale, Nostoc sp. has a relatively high growth rate under both monoculture and co‐culture and prefers the maximum environmental conditions (30 °C and 78 mg CaCO3 L–1; pH 9) during the CyanoHAB season. In addition, the growth of P. autumnale is relatively unaffected by alkalinity. Nitrogen (N) stress also has a limiting effect in the interspecific interactions of both cyanobacterial strains. All other cases except for Nostoc sp. in a co‐culture showed a considerable increase in growth rate with increasing N content (1.5–3.5 mg NO3–N L–1), showing 20–64% under the minimum field conditions (25 °C and 19 mg CaCO3 L–1; pH 7) and 18–140% under the maximum field conditions. The results show that the growth of P. autumnale can be stimulated by enhanced N stress. On the other hand, Nostoc sp. is less affected by N stress compared with P. autumnale. Therefore, it has excellent potential to be a major group of CyanoHABs because of their relatively high growth rate, particularly in the range of N tested.

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Heavy Metal Removal via Phycoremediation

Nelson

Huynh

Nguyen

et al. 2020

2020 Waste-Management Education Research (WERC)

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Characterization of Alkane-Producing Nostoc sp. Isolated from a Summer Bloom for Biofuel Potential

Cited by 4 publications

References 0 publications

Influence of Abiotic Factors on the Growth of Cyanobacteria Isolated from Nakdong River, South Korea¹

Influence of Abiotic Factors on the Growth of Cyanobacteria Isolated from Nakdong River, South Korea¹

Comparative growth characteristics and interspecific competitive interaction of two cyanobacteria, Phormidium autumnale and Nostoc sp.

Heavy Metal Removal via Phycoremediation

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Characterization of Alkane-Producing Nostoc sp. Isolated from a Summer Bloom for Biofuel Potential

Cited by 4 publications

References 0 publications

Influence of Abiotic Factors on the Growth of Cyanobacteria Isolated from Nakdong River, South Korea1

Influence of Abiotic Factors on the Growth of Cyanobacteria Isolated from Nakdong River, South Korea1

Comparative growth characteristics and interspecific competitive interaction of two cyanobacteria, Phormidium autumnale and Nostoc sp.

Heavy Metal Removal via Phycoremediation

Contact Info

Product

Resources

About

Influence of Abiotic Factors on the Growth of Cyanobacteria Isolated from Nakdong River, South Korea¹

Influence of Abiotic Factors on the Growth of Cyanobacteria Isolated from Nakdong River, South Korea¹