The effects of abscisic acid, salicylic acid and jasmonic acid on lipid accumulation in two freshwater &lt;i&gt;Chlorella&lt;/i&gt; strains

Wu, Guanxun; Gao, Zhengquan; Du, Huanmin; Lin, Bin; Yan, Yuchen; Li, Guoqiang; Guo, Yongxian; Fu, Shenggui; Wei, Gongxiang; Wang, Miaomiao; Cui, Meng; Meng, Chen

doi:10.2323/jgam.2017.06.001

Cited by 33 publications

(28 citation statements)

References 48 publications

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“…An example is posed by the strain FACHB-31 that originally was seen as Scenedesmus obliquus (Xu et al, 2015) and as such as a member of the class of Chlorellaceae, which against cursory impression does not comprise the family of the Chlorellales, which is home to Chlorella. Later, the same strain was designated Chlorella and thus fell or falls in the class of Trebouxiophyceae (Wu et al, 2018), which fits well with recent DNA-based phylogeny (Mocsai et al, 2020a). An example of two different classes in the animal area is the classes of birds and mammals, where misclassifications are hard to imagine.…”

Section: Introductionsupporting

confidence: 59%

The Structural Difference of Isobaric N-Glycans of Two Microalgae Samples Reveals Taxonomic Distance

et al. 2021

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Microalgae of the Chlorella clade are extensively investigated as an environmentally friendly source of renewable biofuels and high-value nutrients. In addition, essentially unprocessed Chlorella serves as wholesome food additive. A recent study on 80 commercial Chlorella preparations revealed an unexpected variety of protein-linked N-glycan patterns with unprecedented structural features, such as the occurrence of arabinose. Two groups of products exhibited a characteristic major N-glycan isobaric to the Man2GlcNAc2XylFuc N-glycan known from pineapple stem bromelain, but tandem mass spectrometry (MS/MS) analysis pointed at two types of N-glycan different from the bromelain structure, as well as from each other. Here we report the exact structures of these two novel N-glycan structures, elucidated by nuclear magnetic resonance spectroscopy and MS/MS, as well as on their phylogenetic context. Despite their humble size, these two N-glycans exhibited a very different design with structural features unrelated to those recently described for other Chlorella-clade strains. The major glycans of this study presented several novel structural features such as substitution by arabinose or xylose of the internal N-acetylglucosamine, as well as methylated sugars. ITS1-5.8S-ITS2 rDNA barcode analyses revealed that the xylose-containing structure derived from a product primarily comprising Scenedesmus species, and the arabinose-containing glycan type related to Chlorella species (SAG211-34 and FACHB-31) and to Auxenochlorella. This is another example where characteristic N-glycan structures distinguish phylogenetically different groups of microalgae.

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Section: Introductionsupporting

confidence: 59%

The Structural Difference of Isobaric N-Glycans of Two Microalgae Samples Reveals Taxonomic Distance

et al. 2021

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“…In a microalgae S. quadricauda, culture supplemented with 2 µM, ABA increased biomass production 2.1-fold in nitrogen-limited conditions after 48 h of cultivation, so this may be a potential strategy for efficient microalgal cultivation for biofuel production [67]. Meanwhile, lipid accumulation of microalgae with only ABA supplemented has also been revealed [32,33]. It was shown that 1.0 mg/L ABA imposed an augmentation of lipid productivity of C. vulgaris ZF strain and FACHB-31 by 123% and 44%, respectively [32].…”

Section: Abscisic Acidmentioning

confidence: 89%

“…Meanwhile, lipid accumulation of microalgae with only ABA supplemented has also been revealed [32,33]. It was shown that 1.0 mg/L ABA imposed an augmentation of lipid productivity of C. vulgaris ZF strain and FACHB-31 by 123% and 44%, respectively [32].…”

Section: Abscisic Acidmentioning

confidence: 99%

“…For example, brassinosteroids play roles in cell division, elongation, and differentiation of the vascular system, and jasmonic acid can enhance the tolerances of microalgae to adverse environments [22]. Similarly, salicylates are able to trigger defensive responses [32]. Overall, a variety of physiological and biochemical processes is regulated by phytohormones.…”

Section: The Crosstalk For Different Phytohormonesmentioning

confidence: 99%

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Phytohormones and Effects on Growth and Metabolites of Microalgae: A Review

et al. 2018

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Microalgae cultivation is booming in agriculture, aquaculture, and bioenergy sectors. A wide range of bioactive compounds with attractive properties can be produced with microalgae, including pigments, vitamins, proteins, carbohydrates, and lipids. The biofuel yields from microalgae can exceed the yields obtained with energy crops by 10-100 times. Therefore, such cultivation is promising for the regulation of the biosynthesis of microalagae with phytohormones, which can enhance the production of high-valued bioproducts. This review reports the effect of auxins, abscisic acid, cytokinins, gibberellins, and ethylene on microalgal growth and metabolites, as well as the crosstalk of different phytohormones. The use of phytohormones is also promising because it can also reduce the inputs necessary to grow the selected microalgae and maximize the yields.

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“…However, its algal role remains poorly defined with only a few papers suggesting its involvement in stress responses such as those resulting from desiccation 9 and salinity 10 and in the initiation of the cell cycle 11,12 . ABA treatment has also been shown to increase lipid accumulation in Chlorella 13 .…”

Section: Introductionmentioning

confidence: 99%

Abscisic acid induced a negative geotropic response in dark-incubated Chlamydomonas reinhardtii

Alhijab

Gregg

Davies

et al. 2019

Sci Rep

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The phytohormone abscisic acid (ABA) plays a role in stresses that alter plant water status and may also regulate root gravitropism and hydrotropism. ABA also exists in the aquatic algal progenitors of land plants, but other than its involvement in stress responses, its physiological role in these microorganisms remains elusive. We show that exogenous ABA significantly altered the HCO 3 − uptake of Chamydomonas reinhardtii in a light-intensity-dependent manner. In high light ABA enhanced HCO 3 − uptake, while under low light uptake was diminished. In the dark, ABA induced a negative geotropic movement of the algae to an extent dependent on the time of sampling during the light/dark cycle. The algae also showed a differential, light-dependent directional taxis response to a fixed ABA source, moving horizontally towards the source in the light and away in the dark. We conclude that light and ABA signal competitively in order for algae to position themselves in the water column to minimise photo-oxidative stress and optimise photosynthetic efficiency. We suggest that the development of this response mechanism in motile algae may have been an important step in the evolution of terrestrial plants and that its retention therein strongly implicates ABA in the regulation of their relevant tropisms.

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The effects of abscisic acid, salicylic acid and jasmonic acid on lipid accumulation in two freshwater <i>Chlorella</i> strains

Cited by 33 publications

References 48 publications

The Structural Difference of Isobaric N-Glycans of Two Microalgae Samples Reveals Taxonomic Distance

The Structural Difference of Isobaric N-Glycans of Two Microalgae Samples Reveals Taxonomic Distance

Phytohormones and Effects on Growth and Metabolites of Microalgae: A Review

Abscisic acid induced a negative geotropic response in dark-incubated Chlamydomonas reinhardtii

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