Analysis of functional traits in female gametophytic and tetrasporophytic life phases of industrially important red alga Gracilaria dura (Rhodophyta: Gracilariacae)

Sambhwani, Kanchan; Modi, Jaskeerat; Singhala, Ankita; Bramhabatt, Harshad; Mishra, Avinash; Mantri, Vaibhav A.

doi:10.1007/s10811-020-02116-1

Cited by 20 publications

(10 citation statements)

References 42 publications

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“…has high protein content which varies between 5.6% and 24.0% (Francavilla et al, 2013;Friedlander, 2008;Gressler et al, 2010;Wen et al, 2006). In the study of Sambhwani et al (2020), the highest protein content of Gracilaria dura was determined as 23.0% depending on seasonal conditions. To the best of our knowledge, there is no research on the combined effect of extraction time, enzyme/substrate ratio (E/S) and ultrasonic applying time on protein content (PC), total phenolic content (TPC), and antioxidant activity (AOA) of protein extracts from G. dura.…”

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confidence: 99%

Ultrasound‐assisted enzymatic extraction of proteins from Gracilaria dura : Investigation of antioxidant activity and techno‐functional properties

Bozdemir

Şensu

Okudan

et al. 2022

Food Processing Preservation

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There is a preference for natural food products and functional food ingredients, which are believed to benefit human health and exist inherently in foods, instead of receiving compounds chemically synthesized. Moreover, to strong immunity system is among people's highest priority in a post-pandemic era as the Covid-19 pandemic caused the catastrophic effects. In particular, bioactive extracts or single functional food components that can prevent nutrition-related diseases have huge importance for human nutrition and promote the human immune system (Galanakis, 2021). In this context, finding alternative, cheap, natural, and sustainable food resources such as macroalgae, duckweed, and insects for bioactive compounds is one of the trend research topics.Macroalgae are renewable sources that live in the marine ecosystem and are excellent for human nutrition, also have an important commercial potential as a functional ingredient in a variety of foods (Cofrades et al., 2017;García-Vaquero et al., 2017). In particular, proteins as one of the essential nutrients isolated from macroalgae have various bioactive properties such as antioxidant, anticancer,

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confidence: 99%

Ultrasound‐assisted enzymatic extraction of proteins from Gracilaria dura : Investigation of antioxidant activity and techno‐functional properties

Bozdemir

Şensu

Okudan

et al. 2022

Food Processing Preservation

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“…The industrially important red seaweed Gracilaria dura species has been the subject of various investigations, including agar and agarose characterization, cultivation, characterization of functional traits, and bioactive secondary metabolites . The study of metabolites using different seaweeds revealed the presence of several interesting compounds.…”

Section: Discussionmentioning

confidence: 99%

Profiling of Peak Intensity and Standard Deviation of Metabolites in Industrially Important Red Seaweed Gracilaria dura (Rhodophyta) by ¹H NMR Spectra for Benchmarking

Jaiswar

Thakur

Dawange

et al. 2021

ACS Food Sci. Technol.

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Mapping of regulatory components of cellular functioning by 1H NMR metabolomics has recently paved the way to study biochemical pathways in plants. Despite the enormous complexity and heterogeneity of the metabolites, the estimation of molar concentration allows for their direct quantification without calibration for individual compounds. 1H NMR spectra of near-native extracts were recorded for a large number (55 each) of wild and cultured samples of the industrially important red seaweed Gracilaria dura to obtain quantitative data of all the metabolites. Average and standard deviation of the respective classes were calculated from 1H NMR spectra wherein significant differences between wild and cultured groups were observed in the 1.56–3.50 ppm region. A significant region in the wild samples having a low average (0–0.98) and standard deviation (0.2–0.81) was 1.56–2.96 ppm representing nitrogen-containing compounds. The same region was found to have a much higher standard deviation (0.13–1.73) with average (0–2.03) in cultured samples. In comparison, sugar metabolites (triethanolamine, galactose, lactate, threonine) have a high average peak intensity and similar standard deviation across both groups of samples. This observation reveals that sugar compounds are critical in central metabolic pathways while nitrogen compounds change due to the environment. PCA analysis revealed an interpretable overview of main information enclosed in a multidimensional data set; the differences were correlated to environmental determinants, developmental, and growth states. A signature metabolite profile is presented with minor standard deviation differences between significant parts of the 1H NMR spectra, confirming its use as a rapid chemo-taxonomic tool supplementary to the conventional approach.

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“…In two experiments with apical meristems of Gracilaria dura , diploids grew more than haploids when the last 2 cm were excised (Sambhwani et al. 2020), but haploids grew more than diploids when the last 5 cm were excised (Gupta et al. 2011).…”

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confidence: 99%

“…2020, Sambhwani et al. 2020), may be problematic as it assumes infinite growth, disregarding that fronds actually show a size‐dependent growth toward an asymptotic maximum size. Most likely sources of bias are too large census intervals, and different groups starting from different initial sizes and/or tending to different asymptotic sizes.…”

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confidence: 99%

Differential Frond Growth in the Isomorphic Haploid–diploid Red Seaweed Agarophyton chilense by Long‐term In Situ Monitoring

Vieira¹,

Engelen

Huanel

et al. 2021

Journal of Phycology

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Conditional differentiation between haploids and diploids has been proposed to drive the evolutionary stability of isomorphic biphasic life cycles. The cost of producing and maintaining genetic information has been posed as a possible driver of this conditional differentiation. Under this hypothesis, haploids benefit over diploids in resource‐limited environments by halving the costs of producing and maintaining DNA. Spared resources can be allocated to enhance survival, growth or fertility. Here we test in the field whether indeed haploids have higher growth rates than diploids. Individuals of the red seaweed Agarophyton chilense, were mapped and followed during 2 years with 4‐month census intervals across different stands within the Valdivia River estuary, Chile. As hypothesized, haploids grew larger and faster than diploids, but this was sex‐dependent. Haploid (gametophyte) females grew twice as large and 15% faster than diploids (tetrasporophytes), whereas haploid males only grew as large and as fast as the maximum obtained by diploids in summer. However, haploid males maintained their maximum sizes and growth rates constant year‐round, while diploids were smaller and had lower growth rates during the winter. In conclusion, our results confirm the conditional differentiation in size and growth between haploids and diploids but also identified important differences between males and females. Besides understanding life cycle evolution, the dynamics of A. chilense frond growth reported informs algal farmers regarding production optimization and should help in determining best planting and harvesting strategies.

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Analysis of functional traits in female gametophytic and tetrasporophytic life phases of industrially important red alga Gracilaria dura (Rhodophyta: Gracilariacae)

Cited by 20 publications

References 42 publications

Ultrasound‐assisted enzymatic extraction of proteins from Gracilaria dura : Investigation of antioxidant activity and techno‐functional properties

Ultrasound‐assisted enzymatic extraction of proteins from Gracilaria dura : Investigation of antioxidant activity and techno‐functional properties

Profiling of Peak Intensity and Standard Deviation of Metabolites in Industrially Important Red Seaweed Gracilaria dura (Rhodophyta) by ¹H NMR Spectra for Benchmarking

Differential Frond Growth in the Isomorphic Haploid–diploid Red Seaweed Agarophyton chilense by Long‐term In Situ Monitoring

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Analysis of functional traits in female gametophytic and tetrasporophytic life phases of industrially important red alga Gracilaria dura (Rhodophyta: Gracilariacae)

Cited by 20 publications

References 42 publications

Ultrasound‐assisted enzymatic extraction of proteins from Gracilaria dura : Investigation of antioxidant activity and techno‐functional properties

Ultrasound‐assisted enzymatic extraction of proteins from Gracilaria dura : Investigation of antioxidant activity and techno‐functional properties

Profiling of Peak Intensity and Standard Deviation of Metabolites in Industrially Important Red Seaweed Gracilaria dura (Rhodophyta) by 1H NMR Spectra for Benchmarking

Differential Frond Growth in the Isomorphic Haploid–diploid Red Seaweed Agarophyton chilense by Long‐term In Situ Monitoring

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Profiling of Peak Intensity and Standard Deviation of Metabolites in Industrially Important Red Seaweed Gracilaria dura (Rhodophyta) by ¹H NMR Spectra for Benchmarking