Pub Date : 2023-01-01DOI: 10.1615/interjalgae.v25.i1.30
S. Genkal, E. Mitrofanova
The re-examination of Stephanocostis chantaicus Genkal et Kuzmina micrographs from the iconotheca on lakes Khantaiskoye and Teletskoye. A scanning electron microscopy study of new materials from Lake Teletskoye, and analysis of the literature data make it possible to expand the diagnosis of a rare diatom species, S. chantaicus, and specify its ecology and range. The distribution of the species in Lake Teletskoye, and its role among small-celled centric diatoms in the littoral and pelagic zones are also shown.
{"title":"Stephanocostis chantaicus (Bacillariophyta), a Rare Species for Russia (Morphology, Ecology, Distribution)","authors":"S. Genkal, E. Mitrofanova","doi":"10.1615/interjalgae.v25.i1.30","DOIUrl":"https://doi.org/10.1615/interjalgae.v25.i1.30","url":null,"abstract":"The re-examination of Stephanocostis chantaicus Genkal et Kuzmina micrographs from the iconotheca on lakes Khantaiskoye and Teletskoye. A scanning electron microscopy study of new materials from Lake Teletskoye, and analysis of the literature data make it possible to expand the diagnosis of a rare diatom species, S. chantaicus, and specify its ecology and range. The distribution of the species in Lake Teletskoye, and its role among small-celled centric diatoms in the littoral and pelagic zones are also shown.","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjalgae.v25.i1.40
Farhad Vayadi Parambil, A. Yusuf
Western ghats (Biodiversity hotspot) of Kerala is abundant in cyanobacterial species diversity. The cyanobacterial genus Nostoc inhabits on natural rock surfaces, thus play an important role in terrestrial ecosystems by colonizing in new and unsettled ecological niches. The abiotic factors like temperature, pH, humidity, micro and macro nutrients contribute to the abundance of Nostoc spp. on the rock surface. Nostoc spp. act as a potential candidates for eco-friendly and sustainable agriculture. Even though, their substantial importance to the environment most of the Nostoc spp. are unexplored, especially from Western ghats region of Kerala. Hence, the present study investigated the diversity of epilithic Nostoc spp. from Western ghats regions of Kerala. A total of 25 epilithic Nostoc spp. were identified in this study. Among the 25 species, Nostoc tibeticum and N. indistinguindem are new records from India.
{"title":"Diversity of Epilithic Nostoc spp. from Western Ghats Regions of Kerala, India","authors":"Farhad Vayadi Parambil, A. Yusuf","doi":"10.1615/interjalgae.v25.i1.40","DOIUrl":"https://doi.org/10.1615/interjalgae.v25.i1.40","url":null,"abstract":"Western ghats (Biodiversity hotspot) of Kerala is abundant in cyanobacterial species diversity. The cyanobacterial genus Nostoc inhabits on natural rock surfaces, thus play an important role in terrestrial ecosystems by colonizing in new and unsettled ecological niches. The abiotic factors like temperature, pH, humidity, micro and macro nutrients contribute to the abundance of Nostoc spp. on the rock surface. Nostoc spp. act as a potential candidates for eco-friendly and sustainable agriculture. Even though, their substantial importance to the environment most of the Nostoc spp. are unexplored, especially from Western ghats region of Kerala. Hence, the present study investigated the diversity of epilithic Nostoc spp. from Western ghats regions of Kerala. A total of 25 epilithic Nostoc spp. were identified in this study. Among the 25 species, Nostoc tibeticum and N. indistinguindem are new records from India.","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjalgae.v25.i2.40
S. Adhithya, Jason Earl Thomas, V. Aravinthkumar
CO2 is the main contributor to the global warming crisis. Among various existing carbon-capture technologies, microalgae based biological carbon-capture is a promising and energy efficient technology. Microalgae are gaining attention for bridging carbon mitigation and bioenergy production. Its biomass is considered as a CO2-neutral substitute for fossil fuel resulting from the net transfer of atmospheric CO2 into biomass. This study presents an assessment of carbon dioxide assimilation and subsequent biomass generation in Scenedesmus species of green algae. The experimental setup includes a 1% supply of CO2 using a photobioreactor compared with a column with no CO2 output. Results revealed significant growth of microalgae at elevated CO2 (1%) compared to zero CO2 supplementation. The strategy developed here could be a suitable alternative in a carbon intensive industry towards carbon mitigation and sequestration. Additionally, we observed a higher synthesis of protein in Scenedesmus grown in an enriched carbon environment, with a concentration of 164.34 μg/mL. These proteins can also be harvested to formulate a protein enriched nutraceutical.
{"title":"Design and Evaluation of a Photobioreactor for Carbo Capture and Mitigation Using Microalgae","authors":"S. Adhithya, Jason Earl Thomas, V. Aravinthkumar","doi":"10.1615/interjalgae.v25.i2.40","DOIUrl":"https://doi.org/10.1615/interjalgae.v25.i2.40","url":null,"abstract":"CO2 is the main contributor to the global warming crisis. Among various existing carbon-capture technologies, microalgae based biological carbon-capture is a promising and energy efficient technology. Microalgae are gaining attention for bridging carbon mitigation and bioenergy production. Its biomass is considered as a CO2-neutral substitute for fossil fuel resulting from the net transfer of atmospheric CO2 into biomass. This study presents an assessment of carbon dioxide assimilation and subsequent biomass generation in Scenedesmus species of green algae. The experimental setup includes a 1% supply of CO2 using a photobioreactor compared with a column with no CO2 output. Results revealed significant growth of microalgae at elevated CO2 (1%) compared to zero CO2 supplementation. The strategy developed here could be a suitable alternative in a carbon intensive industry towards carbon mitigation and sequestration. Additionally, we observed a higher synthesis of protein in Scenedesmus grown in an enriched carbon environment, with a concentration of 164.34 μg/mL. These proteins can also be harvested to formulate a protein enriched nutraceutical.","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjalgae.v25.i3.60
N. Job, Ardra A. Chandran, Ashly Augustine, Rahoofa P. Palliyalli, K. G. Nevin
Marine macro alga are known to produce a plethora of bioactive metabolites with potential application in pharmaceutical and nutritional product development. In this study, the brown algae Sargassum wightii was collected along the coast of Kovalam, Thiruvananthapuram and subjected to in vitro analysis to determine their bioactive properties. The chloroform-methanol extract of S. wightii was utilized to screen and quantify phytochemical components. Further, the study examined the antioxidant potentials by lipid peroxidation inhibition, DPPH, and ABTS radical scavenging assays followed by an antibacterial activity. The capability of the extract to inhibit DNA damage and protein oxidation was also evaluated in vitro. Finally, the chemical characterization was attained using UV-Visible, FTIR, and GC-MS spectral data. Alkaloids, coumarins, flavonoids, phenols, and tannins, were detected in preliminary qualitative phytochemical analysis and their quantitative estimation revealed a significant concentration of these phytocomponents. The extract showed an IC50 value of 310.53 ± 0.35 µg/mL and 242.85 ± 0.377 µg/mL for DPPH and ABTS free radicals respectively. Whereas an IC50 of 205.42 ± 0.20 µg/mL was estimated for lipid peroxidation inhibition assay. A significant antimicrobial activity against four bacterial pathogens with a maximum zone of inhibition of > 40 mm was also observed against Staphylococcus aureus 1.5 µg/mL). The extract also demonstrated a high capability for concentration-dependent prevention of DNA damage and protein oxidation. The GC-MS spectral peaks confirmed the occurence of 17 active components with reported biological activities. These findings suggest that the extract of S. wightii, can be a lead compound for the development of a promising pharmaceutical product.
{"title":"Sargassum wightii Greville ex J.Agardh Grevilli Extract with Macromolecular Protection Activity In Vitro: Prospecting for Novel Drug Leads Using GC-MS Based Metabolic Profiling","authors":"N. Job, Ardra A. Chandran, Ashly Augustine, Rahoofa P. Palliyalli, K. G. Nevin","doi":"10.1615/interjalgae.v25.i3.60","DOIUrl":"https://doi.org/10.1615/interjalgae.v25.i3.60","url":null,"abstract":"Marine macro alga are known to produce a plethora of bioactive metabolites with potential application in pharmaceutical and nutritional product development. In this study, the brown algae Sargassum wightii was collected along the coast of Kovalam, Thiruvananthapuram and subjected to in vitro analysis to determine their bioactive properties. The chloroform-methanol extract of S. wightii was utilized to screen and quantify phytochemical components. Further, the study examined the antioxidant potentials by lipid peroxidation inhibition, DPPH, and ABTS radical scavenging assays followed by an antibacterial activity. The capability of the extract to inhibit DNA damage and protein oxidation was also evaluated in vitro. Finally, the chemical characterization was attained using UV-Visible, FTIR, and GC-MS spectral data. Alkaloids, coumarins, flavonoids, phenols, and tannins, were detected in preliminary qualitative phytochemical analysis and their quantitative estimation revealed a significant concentration of these phytocomponents. The extract showed an IC50 value of 310.53 ± 0.35 µg/mL and 242.85 ± 0.377 µg/mL for DPPH and ABTS free radicals respectively. Whereas an IC50 of 205.42 ± 0.20 µg/mL was estimated for lipid peroxidation inhibition assay. A significant antimicrobial activity against four bacterial pathogens with a maximum zone of inhibition of > 40 mm was also observed against Staphylococcus aureus 1.5 µg/mL). The extract also demonstrated a high capability for concentration-dependent prevention of DNA damage and protein oxidation. The GC-MS spectral peaks confirmed the occurence of 17 active components with reported biological activities. These findings suggest that the extract of S. wightii, can be a lead compound for the development of a promising pharmaceutical product.","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1615/interjalgae.v24.i1.10
S. Genkal, E. Mitrofanova
{"title":"Centric Diatoms of Lake Teletskoye (Altai, Russia) and a New Species from the Genus Pantocsekiella K.T.Kiss et Acs (Centrophyceae)","authors":"S. Genkal, E. Mitrofanova","doi":"10.1615/interjalgae.v24.i1.10","DOIUrl":"https://doi.org/10.1615/interjalgae.v24.i1.10","url":null,"abstract":"","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67359814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1615/interjalgae.v24.i3.50
L. V. Ladynina, A. V. Pirkova
{"title":"Growth of Cryptophyte Rhodomonas salina and Its Accumulation of Phycoerythrinas a Function of the Nitrogen Concentration in the Culture Medium","authors":"L. V. Ladynina, A. V. Pirkova","doi":"10.1615/interjalgae.v24.i3.50","DOIUrl":"https://doi.org/10.1615/interjalgae.v24.i3.50","url":null,"abstract":"","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1615/interjalgae.v24.i3.70
V. K. Evstafyev, M. Bondarenko, N. A. Bondarenko
{"title":"Physical and Biological Essence of Coefficients in the Willis Equation for Study of Algal Compositions in Mountain Lakes of East Siberia","authors":"V. K. Evstafyev, M. Bondarenko, N. A. Bondarenko","doi":"10.1615/interjalgae.v24.i3.70","DOIUrl":"https://doi.org/10.1615/interjalgae.v24.i3.70","url":null,"abstract":"","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1615/interjalgae.v24.i4.60
S. Kanwal, S. Mussarat
{"title":"Culturable Moderately Thermophilic and Osmophilic Algae Isolated for the First Time from a Terrestrial Hot Spring","authors":"S. Kanwal, S. Mussarat","doi":"10.1615/interjalgae.v24.i4.60","DOIUrl":"https://doi.org/10.1615/interjalgae.v24.i4.60","url":null,"abstract":"","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"6 6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1615/interjalgae.v24.i2.30
L. N. Sangolkar, Sarika N. Gurao (Maske)
{"title":"Seasonal Variation of Microcystis and Microcystin in Lakes at Nagpur (M. S.), India","authors":"L. N. Sangolkar, Sarika N. Gurao (Maske)","doi":"10.1615/interjalgae.v24.i2.30","DOIUrl":"https://doi.org/10.1615/interjalgae.v24.i2.30","url":null,"abstract":"","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1615/interjalgae.v24.i4.20
Jackson Achankunju, Panikkar M. V. N.
{"title":"Spatial and Temporal Diversity in the Diatom Flora of Pathanamthitta District of Kerala, India","authors":"Jackson Achankunju, Panikkar M. V. N.","doi":"10.1615/interjalgae.v24.i4.20","DOIUrl":"https://doi.org/10.1615/interjalgae.v24.i4.20","url":null,"abstract":"","PeriodicalId":39315,"journal":{"name":"International Journal on Algae","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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