Relationship between starch and lipid accumulation induced by nutrient depletion and replenishment in the microalga Parachlorella kessleri

Fernandes, Bruno D.; Teixeira, J. A.; Dragone, Giuliano; Vicente, António A.; Kawano, Shigeyuki; Bišová, Kateřina; Přibyl, Pavel; Zachleder, Vilém; Vítová, Milada

doi:10.1016/j.biortech.2013.06.096

Cited by 115 publications

(63 citation statements)

References 33 publications

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“…Likely, the degradation products of starch are used as a substrate for fatty acid synthesis [6]. The synthesis of starch, or other carbohydrates, simultaneous with fatty acid synthesis has also been observed for various other microalgae species [5,15,[28][29][30]. And in Neochloris oleoabundans, it was also found that relatively more TAG is produced at lower biomass nitrogen content (more severe nitrogen limitation) [4,15].…”

Section: Carbon Partitioning During Nitrogen Starvationmentioning

confidence: 86%

Photosynthetic efficiency and carbon partitioning in nitrogen-starved Scenedesmus obliquus

et al. 2015

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Section: Carbon Partitioning During Nitrogen Starvationmentioning

confidence: 86%

Photosynthetic efficiency and carbon partitioning in nitrogen-starved Scenedesmus obliquus

et al. 2015

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“…Since the starch concentration at the start of the light period was higher at a VER of 16.6 % per cycle compared to a VER of 33 %, less starch can be produced in the light period. Lipids are regarded to be secondary storage metabolites (Fernandes et al 2013), the relative high lipid concentration at a VER of 16.6 % per cycle is a clear indication that starch levels had reached a maximum.…”

Section: Pcr-dgge Analysismentioning

confidence: 99%

Starch productivity in cyclically operated photobioreactors with marine microalgae—effect of ammonium addition regime and volume exchange ratio

et al. 2014

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Large-scale production of microalgal storage compounds will likely involve marine microalgae. Previously, we described a method to enrich microalgae with a high storage compound productivity from a natural inoculum. Here, this strategy was implemented under marine conditions in a sequencing batch reactor. The influence of the volume exchange ratio and the moment of ammonium addition in the day-night cycle on the storage compound productivity are described. Storage compound productivity was maximal if ammonium was supplied at the start of the dark period rather than the light period, irrespective of the volume exchange ratio. Increasing the volume exchange ratio from 33 to 50 % per cycle induced a decrease in storage compound production if ammonium was supplied in the light whereas the storage compound productivity was comparable when ammonium was supplied in the dark. The latter indicates a shift of cell division processes to the light period at increasing volume exchange ratio, although ammonium uptake completely occurred in the dark period.

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“…P. kessleri is characterized by a high growth rate and high biomass, starch, and lipid productivity. Moreover, it exhibits good tolerance to high temperature and a low tendency to form aggregates (Fernandes et al, 2013). These traits indicate that the species can be used in industrial productions of biomass.…”

Section: Introductionmentioning

confidence: 97%

Stimulatory effect of indole-3-acetic acid and continuous illumination on the growth of Parachlorella kessleri

Magierek¹,

Krzemińska²,

Tys³

2017

International Agrophysics

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A b s t r a c t. The effects of the phytohormone indole-3-acetic acid and various conditions of illumination on the growth of Parachlorella kessleri were investigated. Two variants of illumination: continuous and photoperiod 16/8 h (light/dark) and two concentrations of the phytohormone -10 -4 M and 10 -5 M of indole-3-acetic acid were used in the experiment. The results of this study show that the addition of the higher concentration of indole-3-acetic acid stimulated the growth of P. kessleri more efficiently than the addition of the lower concentration of indole-3-acetic acid. This dependence can be observed in both variants of illumination. Increased biomass productivity was observed in the photoperiod conditions. Both the addition of the phytohormone and the conditions of the illumination had an impact on the number of P. kessleri cells. An increased number of cells was observed under the conditions of continuous illumination. This result has shown that the continuous illumination and the higher concentration of the phytohormone stimulated the growth of P. kessleri more effectively than the shorter duration of light (16/8 h (light/dark)).K e y w o r d s: light, photoperiod, microalgae, indole-3-acetic acid, Parachlorella kessleri

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Relationship between starch and lipid accumulation induced by nutrient depletion and replenishment in the microalga Parachlorella kessleri

Cited by 115 publications

References 33 publications

Photosynthetic efficiency and carbon partitioning in nitrogen-starved Scenedesmus obliquus

Photosynthetic efficiency and carbon partitioning in nitrogen-starved Scenedesmus obliquus

Starch productivity in cyclically operated photobioreactors with marine microalgae—effect of ammonium addition regime and volume exchange ratio

Stimulatory effect of indole-3-acetic acid and continuous illumination on the growth of Parachlorella kessleri

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