Fatty acid composition of six freshwater wild cyanobacterial species

Řezanka, Tomáš; Dor, Inka; Prell, A.; Dembitsky, Valery M.

doi:10.1007/bf02931279

Cited by 50 publications

(36 citation statements)

References 26 publications

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“…FA results from the present study (Table 2) and those obtained in Li et al [52] suggest that FA seem to be more sensitive to environmental parameters than anticipated, leading to consequences in the FA use as characteristic markers. Consequently, ratios between MUFA, PUFA and SAFA seem to be highly variable for different cyanobacterial species [48], but appear rather constant within certain species under comparable environmental conditions [53]. The amount of 18:1(n-7) in D. lemmermannii and A. flos-aquae throughout the treatments is far higher compared to N. spumigena.…”

Section: Species Differences In Famentioning

confidence: 93%

Cyanobacteria in Scandinavian coastal waters — A potential source for biofuels and fatty acids?

et al. 2014

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Since land-based biofuel production competes with conventional food production, a water-based biomass and biofuel production from cyanobacteria offers large potential. This study investigates the application potential of cyanobacteria for fuel production and by-products by mimicking nutrient depleted environmental conditions. Three Baltic cyanobacteria strains (Aphanizomenon flos-aquae, Dolichospermum lemmermannii and Nodularia spumigena) were inoculated in full nutrient levels, as well as phosphorus and nitrogen depleted medium, before being monitored for 14 days. For screening reasons, multiple parameters such as fatty acids, photosynthetic pigments including phycobilins, biovolume, photosynthetic activity, inorganic nutrients, particulate organic carbon, nitrogen and phosphorous were investigated every seven days. We observed a strong negative relationship between lipid content, growth and nutrient availability, resulting in high lipid and pigment production in combination with a limited growth rate in nutrient depleted treatments. Our results suggest that cultivation and harvest of bloom-forming cyanobacteria for fuel and by-product production are feasible in Scandinavia, but strongly depends on the desired compounds and biomass. Each cyanobacteria species originally has a species-specific chemical fingerprint that may be modified by rearing conditions and harvesting period to meet the needs of the consumer. This leads to important conclusions regarding future culturing conditions and biomass production of the desired compounds.

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Section: Species Differences In Famentioning

confidence: 93%

Cyanobacteria in Scandinavian coastal waters — A potential source for biofuels and fatty acids?

et al. 2014

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“…Moreover, important consideration should be given to biochemical/bioorganic data, e.g. fatty acids composition of cyanobacterial cell wall, which seems to be applicable for species identification (Caudales et al 2000;Ř ezanka et al 2003;Li and Watanabe 2004).…”

Section: Diversity Of Cyanobacteria and Their Current Classificationmentioning

confidence: 99%

Species concepts and speciation factors in cyanobacteria, with connection to the problems of diversity and classification

et al. 2015

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The cyanobacteria are the most important prokaryotic primary producers on Earth, inhabiting a great diversity of aquatic and terrestrial environments exposed to light. However, the evolutionary forces leading to their divergence and speciation remain largely enigmatic compared to macroorganisms due to their prokaryotic nature, including vast population sizes, and largely asexual reproduction. The advent of modern molecular techniques has facilitated an understanding of the important factors shaping cyanobacterial evolution, including horizontal gene transfer and homologous recombination. We review the forces shaping the evolution of cyanobacteria and discuss the role of cohesive forces on speciation. Further, while myriad species concepts and definitions are currently used, only a limited subset might be applied to cyanobacteria due to their asexual reproduction. Additionally, concepts based solely on phenotypes provide insufficient resolution. A monophyletic species concept which is universal may be ideal for cyanobacteria. Actual identification of the cyanobacteria is difficult due to cryptic diversity, lack of morphological variability, and frequent convergent evolutionary events. Thus, applied molecular techniques such as DNA barcoding will be useful for identifications of environmental samples. Lastly, we show that the real biodiversity of the cyanobacteria is widely underestimated, due in part to low sampling efforts, sensitivity to the molecular markers 123Biodivers Conserv (2015) 24:739-757 DOI 10.1007 employed, and the species definitions employed by researchers. In conclusion, we anticipate a rapid increase in cyanobacterial taxa described and large revisions of the system in the future as scientists adopt a common approach to cyanobacterial systematics.

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“…Cyanobacteria are common inhabitants of pristine terrestrial and aquatic environments on a global scale and include unicellular and colonial species, which form filaments, sheets or even hollow balls in natural environments [4]. They are known to be monophyletic but morphologically diverse, and traditionally, they are divided into five major subsections according to their engineering strategies.…”

Section: Introductionmentioning

confidence: 99%

Hydrocarbon profiles and phylogenetic analyses of diversified cyanobacterial species

Liu¹,

Zhu²,

Lü³

et al. 2013

Applied Energy

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Fatty acid composition of six freshwater wild cyanobacterial species

Cited by 50 publications

References 26 publications

Cyanobacteria in Scandinavian coastal waters — A potential source for biofuels and fatty acids?

Cyanobacteria in Scandinavian coastal waters — A potential source for biofuels and fatty acids?

Species concepts and speciation factors in cyanobacteria, with connection to the problems of diversity and classification

Hydrocarbon profiles and phylogenetic analyses of diversified cyanobacterial species

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