Growth promotion of the freshwater microalga Chlorella vulgaris by the nitrogen-fixing, plant growth-promoting bacterium Bacillus pumilus from arid zone soils

Hernández, Juan-Pablo; de‐Bashan, Luz E.; Rodriguez, D. Johana; Rodríguez, Yaneth; Bashan, Yoav

doi:10.1016/j.ejsobi.2008.08.004

Cited by 150 publications

(83 citation statements)

References 40 publications

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“…There has been encouraging recent progress in immobilization of functional bacteria with the aim of stimulating microalgal growth. Bacillus pumilus ES4 showed the ability to fix nitrogen and when immobilized with the freshwater green alga Chlorella vulgaris in low nitrogen medium, algal growth was promoted two-fold in the presence of immobilized B. pumilus ES4 (Hernandez et al, 2009). The P/MGPB bacterium A. brasilens that produced the phytohormone IAA was immobilized in cultures of the microalga C. vulgaris in small alginate beads and greatly stimulated growth of the microalga (Gonzalez & Bashan, 2000).…”

Section: Application Of Bacterial Communities In Large-scale Growth Omentioning

confidence: 99%

Effects of bacterial communities on biofuel-producing microalgae: stimulation, inhibition and harvesting

Wang

Hill

Zheng

et al. 2014

Critical Reviews in Biotechnology

104

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Despite the great interest in microalgae as a potential source of biofuel to substitute for fossil fuels, little information is available on the effects of bacterial symbionts in mass algal cultivation systems. The bacterial communities associated with microalgae are a crucial factor in the process of microalgal biomass and lipid production and may stimulate or inhibit growth of biofuel-producing microalgae. In addition, we discuss here the potential use of bacteria to harvest biofuel-producing microalgae. We propose that aggregation of microalgae by bacteria to achieve 490% reductions in volume followed by centrifugation could be an economic approach for harvesting of biofuel-producing microalgae. Our aims in this review are to promote understanding of the effects of bacterial communities on microalgae and draw attention to the importance of this topic in the microalgal biofuel field.

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Section: Application Of Bacterial Communities In Large-scale Growth Omentioning

confidence: 99%

Effects of bacterial communities on biofuel-producing microalgae: stimulation, inhibition and harvesting

Wang

Hill

Zheng

et al. 2014

Critical Reviews in Biotechnology

104

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“…Chlorella has been reported to improve pond water quality (Hernandez et al, 2009). Apart from its effect on water quality, the abundance of Chlorella in green water ponds might have helped to improve the shrimp's immune competence to resist disease thus resulting in higher survival (Ponprateep et al, 2011;Tendencia et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Green water technology for the production of pacific white shrimp, Penaeus vannamei (Boone, 1931)

Chithambaran

Harbi²,

Broom³

et al. 2017

Indian J. Fish.

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Materials and methods Design of experimentThe experiment was conducted in 6 high density polyethylene (HDPE) lined ponds (300 m 2 ) at King Abdulaziz University (KAU) Fish Farm, Faculty of Marine Sciences, Obhur, Jeddah for a period of 96 days. Semi-intensive type of culture method was followed for rearing shrimp. Both control and treatment experimental ponds were triplicated. All ponds were sundried and limed ABSTRACT A study was conducted to assess the efficiency of green water culture strategy for production of Pacific white shrimp Penaeus vannamei (Boone, 1931) in high density polyethylene (HDPE) lined ponds (300 m 2 ) for a period of 96 days. Green water from a broodstock fish pond was used for rearing shrimp in treatment ponds; whereas, filtered seawater was used for growing shrimp in control ponds, with both treatment and control in triplicates. Shrimp juveniles (specific pathogen free, SPF) of uniform size (1.74±0.46 g) were stocked at the rate of 100 nos. m -2 per pond. Feeding, water exchange, sampling and water quality analysis were done as per standard shrimp growout procedure. Shrimp health status and microbial load in culture ponds were recorded periodically. Water quality parameters did not show significant variations between control and treatment ponds. Enhanced growth, survival (19.7%) and biomass (23.3%) were observed in treatment ponds when compared to control. Significant reduction in bacterial population and improved shrimp health status were also noticed in treatment ponds. Green water culture technique reduced harmful bacterial population in culture ponds and enhanced shrimp growth, survival, health and production.

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“…Chlorella spp. is able to grow without nitrogen by a limited period of time, using ammonium that can be produced and recycled within the organism by a variety of metabolic pathways, such as photorespiration, phenylpropanoid metabolism, use of compounds of nitrogen transport, and amino acids catabolism [66,80]. In this regard, Chlorella growth in the absence of other microorganisms can be explained by the differential activity of the enzyme glutamate dehydrogenase.…”

Section: Probiotic Rolementioning

confidence: 99%

“…Despite the induction of microalgal growth by bacteria, not all interactions are positives; interaction of C. vulgaris with their associated bacteria Phyllobacterium myrsinacearum induces culture senescence [65,79]. In a study by Hernández et al (2009) [66] was employed the PGPB Bacillus pumilus Es4, originally isolated from the rhizosphere. This PGPB fix atmospheric nitrogen, produce IAA in vitro in the presence of tryptophan, besides to efficiently produce siderophores and increase growth in a cactus for long periods of time.…”

Section: Probiotic Rolementioning

confidence: 99%

“…Induction of bacterial growth in specific cultures has been reported for a few species of microalgae such as Chlorella vulgaris, C. sorokiniana and B. braunii, and growth promoter bacterial strains are mainly of Azospirillum spp and a Rhizobium sp. [63,64,65,66,67]. Induction of growth in plants used in agriculture through the use of plant growth promoter bacteria (PGPB) [68] is an established fact, involving the use of different mechanisms between plants and bacteria, in which the final product of these many associations is to improve a characteristic of the plant, usually depending on the uses of the plant for human consumption [69].…”

Section: Probiotic Rolementioning

confidence: 99%

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Probiotic Biofilms

Rivas¹,

Riquelme²

2012

Probiotics

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Growth promotion of the freshwater microalga Chlorella vulgaris by the nitrogen-fixing, plant growth-promoting bacterium Bacillus pumilus from arid zone soils

Cited by 150 publications

References 40 publications

Effects of bacterial communities on biofuel-producing microalgae: stimulation, inhibition and harvesting

Effects of bacterial communities on biofuel-producing microalgae: stimulation, inhibition and harvesting

Green water technology for the production of pacific white shrimp, Penaeus vannamei (Boone, 1931)

Probiotic Biofilms

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