Allelopathic effect of Oocystis borgei culture on Microcystis aeruginosa

Wang, Xiaoqian; Zhang, Yulei; Li, Changling; Huang, Xinyu; Feng, Li; Wang, Xinyu; Li, Guanbao

doi:10.1080/09593330.2020.1847202

Cited by 10 publications

(10 citation statements)

References 54 publications

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“…The analysis method cannot precisely define the Oocystis species, but whereas Oocystis sp. is generally associated with a freshwater genus of green microalgae, oceanic strains can be found in marine or brackish water such as Oocystis submarina (Śliwińska-Wilczewska and Latała 2018) or Oocystis borgei which could inhibit harmful microalgae by expressing allopathic effects (Wang et al 2020). Oocystis heteromucosa belongs to strains of marine algae consortium found in marine aquaculture pond wastewater with a high ammonia tolerance (Katayama et al 2020).…”

Section: Discussionmentioning

confidence: 99%

Potential application and beneficial effects of a marine microalgal biomass produced in a high-rate algal pond (HRAP) in diets of European sea bass, Dicentrarchus labrax

Pascon

Messina

Petit

et al. 2021

Environ Sci Pollut Res

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Microalgae have been used as live food in aquatic species. In recent years, the interest in microalgae has considerably increased, thanks to the evolution of production techniques that have identified them as an ecologically attractive aquafeed ingredient. The present study provides the first data about the effects of dietary inclusion of a microalgae consortium grown in a high-rate algal pond system on zootechnical performance, morphometric indices, and dietary nutrient digestibility as well as morphology and functionality of the digestive system of European sea bass, Dicentrarchus labrax. A dietary treatment including a commercial mono-cultured microalgae (Nannochloropsis sp.) biomass was used for comparison. Six hundred and thirty-six European sea bass juveniles (18 ± 0.28 g) were randomly allotted into 12 experimental groups and fed 4 different diets for 10 weeks: a control diet based on fish meal, fish oil, and plant protein sources; a diet including 10% of Nannochloropsis spp. biomass (100 g/kg diet); and two diets including two levels (10% and 20%) of the microalgal consortium (100 and 200 g/kg diet). Even at the highest dietary inclusion level, the microalgal consortium (200 g/kg diet) did not affect feed palatability and fish growth performance. A significant decrease in the apparent digestibility of dry matter, protein, and energy was observed in diets including 10 and 20% of the microalgal consortium, but all fish exhibited a well-preserved intestinal histomorphology. Moreover, dietary inclusion with the microalgal consortium significantly increased the enzymatic activity of maltase, sucrase-isomaltase, and ɤ-glutamil transpeptidase in the distal intestine of the treated European sea bass. Algal consortium grown using fish farm effluents represents an attempt to enhance the utilization of natural biomasses in aquafeeds when used at 10 % as substitute of vegetable ingredients in diet for European sea bass.

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Section: Discussionmentioning

confidence: 99%

Potential application and beneficial effects of a marine microalgal biomass produced in a high-rate algal pond (HRAP) in diets of European sea bass, Dicentrarchus labrax

Pascon

Messina

Petit

et al. 2021

Environ Sci Pollut Res

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“…It has formed unique and complex biological characteristics and ecological environment adaptability in the course of long-term evolution. Some Oocystaceae species, owing to their high nitrogen and phosphorus removal ability [1,2], high CO 2 -tolerance [3], simple growth requirements, and adaptability to various environmental conditions [4], have shown great potential in improving the aquaculture water environment [1,4,5], wastewater treatment [2,6], carbon emissions [3], and biofuel [7].…”

Section: Introductionmentioning

confidence: 99%

Euchlorocystis marina sp. nov. (Oocystaceae, Trebouxiophyceae), a New Species of Green Algae from a Seawater Shrimp Culture Pond

et al. 2022

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Oocystaceae is a cosmopolitan family of green algae with distinct morphology and ultrastructure. Most of the reported species in this family are freshwater species, and there are few marine species reported. In this study, we describe a new marine species of Oocystaceae, Euchlorocystis marina sp. nov. based on material collected from a seawater shrimp culture pond in Zhanjiang, China. An integrative approach, including phylogenetic analyses of 18S rDNA, light microscopy, and transmission electron microscopy, was used for the taxonomic study of the strains. Morphological observation results showed that it has a multilayer thick cell wall, multiple pyrenoids in the chloroplast, and usually 2–16 cells forming a colony in the extended mother cell wall. These features are morphologically similar to the genus Euchlorocystis and are distinguished from other taxa of the family Oocystaceae. The 18S rDNA phylogenetic trees revealed that the strains and Euchlorocystis subsalina formed an independent clade in Oocystaceae with robust support. However, horseshoe-shaped chloroplasts and rounder cells morphologically distinguished it from Euchlorocystis subsalina. Apart from the morphology, the direct comparison of sequences also supported that they were distinct species. The discovery and description of the new species enriches the marine species record of the family Oocystaceae.

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“…However, the morphology of genera and species in this family remains unclear [8][9][10]. Oocystaceae, especially genus Oocystis, are generally considered common freshwater coccal microalgae with a distinctive morphology of oval or fusiform cells, usually persisting within several layers of a mother cell wall for a long time [10,11]. This family is widely considered distinct, with a characteristic cell wall substructure consisting of parallel cellulose fibrils arranged in layers in perpendicular There is growing interest in the production of microalgae-based, high-value by-products as an emerging green biotechnology.…”

Section: Introductionmentioning

confidence: 99%

“…orientations [10][11][12]. Furthermore, phylogenic studies have shown that the family Oocystaceae is an independent lineage within Trebouxiophyceae and is closely related to the Chlorellaceae [10,12].…”

Section: Introductionmentioning

confidence: 99%

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Production of Algal Biomass and High-Value Compounds Mediated by Interaction of Microalgal Oocystis sp. KNUA044 and Bacterium Sphingomonas KNU100

et al. 2021

J. Microbiol. Biotechnol.

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There is growing interest in the production of microalgae-based, high-value by-products as an emerging green biotechnology. However, a cultivation platform for Oocystis sp. has yet to be established. We therefore examined the effects of bacterial culture additions on the growth and production of valuable compounds of the microalgal strain Oocystis sp. KNUA044, isolated from a locally adapted region in Korea. The strain grew only in the presence of a clear supernatant of Sphingomonas sp. KNU100 culture solution and generated 28.57 mg/l/d of biomass productivity. Protein content (43.9 wt%) was approximately two-fold higher than carbohydrate content (29.4 wt%) and lipid content (13.9 wt%). Oocystis sp. KNUA044 produced the monosaccharide fucose (33 μg/mg and 0.94 mg/l/d), reported here for the first time. Fatty acid profiling showed high accumulation (over 60%) of polyunsaturated fatty acids (PUFAs) compared to saturated (29.4%) and monounsaturated fatty acids (9.9%) under the same culture conditions. Of these PUFAs, the algal strain produced the highest concentration of linolenic acid (C18:3 ω3; 40.2%) in the omega–3 family and generated eicosapentaenoic acid (C20:5 ω3; 6.0%), also known as EPA. Based on these results, we suggest that the application of Sphingomonas sp. KNU100 for strain-dependent cultivation of Oocystis sp. KNUA044 holds future promise as a bioprocess capable of increasing algal biomass and high-value bioactive by-products, including fucose and PUFAs such as linolenic acid and EPA.

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Allelopathic effect of Oocystis borgei culture on Microcystis aeruginosa

Cited by 10 publications

References 54 publications

Potential application and beneficial effects of a marine microalgal biomass produced in a high-rate algal pond (HRAP) in diets of European sea bass, Dicentrarchus labrax

Potential application and beneficial effects of a marine microalgal biomass produced in a high-rate algal pond (HRAP) in diets of European sea bass, Dicentrarchus labrax

Euchlorocystis marina sp. nov. (Oocystaceae, Trebouxiophyceae), a New Species of Green Algae from a Seawater Shrimp Culture Pond

Production of Algal Biomass and High-Value Compounds Mediated by Interaction of Microalgal Oocystis sp. KNUA044 and Bacterium Sphingomonas KNU100

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