The bacterial community associated with Tetraselmis suecica outdoor mass cultures

Biondi, Natascia; Cheloni, Giulia; Tatti, Enrico; Decorosi, Francesca; Rodolfi, Liliana; Giovannetti, Luciana; Viti, Carlo; Tredici, Mario R.

doi:10.1007/s10811-016-0966-5

Cited by 33 publications

(34 citation statements)

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“…Two bacterial communities were investigated for their effect on T. suecica F&M-M33 growth: one associated with a laboratory xenic algal culture (LAB) always maintained and cultivated under axenic conditions and the other associated with an outdoor (and thus always exposed to contaminants) algal culture (OUT) carried out in semicontinuous in a photobioreactor and sampled in autumn after about 8 months of continuous operation. For the composition of the communities, see Biondi et al (2017). An axenic culture (AX) was set up for comparison.…”

Section: Resultsmentioning

confidence: 99%

“…The presence in cultures of T. suecica F&M-M33 of the whole bacterial community associated with a laboratory culture or with a mass culture kept outdoors year-round and sampled in autumn (Biondi et al, 2017) led to an increase in both cell size and dry weight, but not of cell number, compared with the axenic algal culture. A similar behaviour was observed with the inoculation of single bacterial isolates into axenic cultures when the co-cultivated bacteria (Mesorhizobium sp.…”

Section: Discussionmentioning

confidence: 99%

“…In this respect, one of the aspects of algal cultivation that has been largely disregarded is the role played by the co-cultivated bacteria (Kim et al, 2014;Cho et al, 2015). Only in few niche applications, algal cultures are axenic, while in all mass cultivation systems (including laboratory vessels and photobioreactors), algae form a consortium with bacteria which may enter as airborne contaminants (Chini Zittelli et al, 2013), or brought with the water and the sea salts used to prepare artificial seawater, or finally are associated with the algal cells since the isolation process that led from the original environmental sample to the monoalgal culture (Biondi et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Few studies (Nicolas et al, 2004;Arora et al, 2012;Biondi et al, 2017) have investigated the bacterial communities associated with cultures of the marine microalga Tetraselmis (Chlorodendrophyceae, Chlorophyta) and the influence of these communities on Tetraselmis growth (Meseck et al, 2007;Arora et al, 2012;Park et al, 2017). This microalga is one of the few actually in the market, as it is widely used in aquaculture (Abiusi et al, 2014;Tredici et al, 2009;Tulli et al, 2012;Muller-Feuga, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Biondi

Cheloni

Rodolfi

et al. 2017

Microbial Biotechnology

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SummaryAlgal cultures are usually co‐cultures of algae and bacteria, especially when considering outdoor mass cultivation. The influence of associated bacteria on algal culture performance has been poorly investigated, although bacteria may strongly affect biomass (or derived product) yield and quality. In this work, the influence on growth and productivity of Tetraselmis suecica F&M‐M33 of bacterial communities and single bacterial isolates from the algal phycosphere was investigated. Xenic laboratory and outdoor cultures were compared with an axenic culture in batch. The presence of the bacterial community significantly promoted culture growth. Single bacterial isolates previously found to be strictly associated with T. suecica F&M‐M33 also increased growth compared with the axenic culture, whereas loosely associated and common seawater bacteria induced variable growth responses, from positive to detrimental. The increased growth was mainly evidenced as increased algal biomass production and cell size, and occurred after exhaustion of nutrients. This finding is of interest for biofuel production from microalgae, often attained through nutrient starvation processes leading to oil or carbohydrate accumulation. As axenic T. suecica F&M‐M33 showed a similar growth with or without vitamins, the most probable mechanism behind bacterial positive influence on algal growth seems nutrient recycling.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Biondi

Cheloni

Rodolfi

et al. 2017

Microbial Biotechnology

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“…have also been associated with other microalgae such as Chlorella spp. (Biondi et al 2016). OTU 539 (Rhodocyclaceae) second and third closest neighbour was…”

Section: Discussionmentioning

confidence: 99%

Botryococcus braunii for the production of hydrocarbons and exopolysaccharides and the role of associated bacteria

Gouveai¹

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Multifaceted Role of Microalgae for Municipal Wastewater Treatment: A Futuristic Outlook toward Wastewater Management

Goswami

Agrawal

Verma

2022

CLEAN Soil Air Water

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Municipal wastewater (MWW) or urban wastewater (UWW) is generated by the domestic consumption of freshwater, which contains a huge amount of nutrients. The release of unprocessed wastewater causes eutrophication and harms aquatic life. Moreover, ingestion of polluted MWW causes a severe negative impact on human health. Microalgae are unicellular, eukaryotic photosynthetic organisms and have the capability of nutrient assimilation in the presence of light. Moreover, the produced biomass can be used for the generation of value‐added bioproducts such as bioenergy. However, conventional microalgae‐based MWW treatment is not as sustainable on a commercial scale. Therefore, more advanced approaches using microalgae need to be integrated in wastewater cultivation systems to improve nutrient removal efficiency. Thus, the present review explores the use of microalgae for the removal of nutrients from MWW, provides an outlook of direct and indirect methods of nutrient uptake from wastewater and the effects of the influencing factors in biomass growth. Moreover, the review also gives insight into recent approaches used for MWW treatment and the applications of algal biomass resulting from treated wastewater. It is predicted that microalgae‐based MWW treatment systems will be a significant green approach to help eliminate nutrient loads and implement circular economy.

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The bacterial community associated with Tetraselmis suecica outdoor mass cultures

Cited by 33 publications

References 68 publications

Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Botryococcus braunii for the production of hydrocarbons and exopolysaccharides and the role of associated bacteria

Multifaceted Role of Microalgae for Municipal Wastewater Treatment: A Futuristic Outlook toward Wastewater Management

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