Article
Biodiversity Conservation
Ruozhen Geng, Wenke Li, Aimin Chao, Xiaoyu Guo, Hua Li, Gongliang Yu, Renhui Li
Summary: Taxonomic studies on cyanobacteria using modern approaches have led to the discovery of many new genera and species. A new filamentous cyanobacterial genus, Microcoleusiopsis, was identified during field surveys in China, isolated from microbial mats on rock surfaces in Jiangxi Province.
Article
Microbiology
Mahesh Chavadar, Aniket Saraf, Archana Suradkar, Deeksha Mishra, Naresh Kumar, Prashant Singh
Summary: The freshwater cyanobacterium strain MKW3 was isolated from a waterlogged sugarcane field in Malkapur, Karad, Maharashtra, India, and characterized using a polyphasic approach. Phylogenetic analysis indicated that it belongs to a new genus and species named Constrictifihim karadense.
FEMS MICROBIOLOGY LETTERS
(2021)
Article
Biotechnology & Applied Microbiology
Kanjana Mahanil, Pachara Sattayawat, Jeeraporn Pekkoh, Masafumi Kameya, Masaharu Ishii, Chayakorn Pumas
Summary: Leptolyngbya sp. KC45 is a thermophilic cyanobacterium with potential for heterologous protein production. By evaluating the antibiotic susceptibility and conducting transformation experiments, a transformation protocol for this strain was established, which can be used for future genetic studies and applications in synthetic biology.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Plant Sciences
Maryam Kokabi, Morteza Yousefzadi, Samad Nejad Ebrahimi, Maryam Soltani, Sonia Malik
Summary: This study found nine different MAAs in the cyanobacterium Leptolyngbya sp. The MAA-enriched extract showed significant and dose-dependent antioxidant activity, comparable to that of ascorbic acid.
ACTA PHYSIOLOGIAE PLANTARUM
(2022)
Article
Biotechnology & Applied Microbiology
Kanjana Mahanil, Apitchaya Sensupa, Jeeraporn Pekkoh, Yingmanee Tragoolpua, Chayakorn Pumas
Summary: The phycobiliprotein from Leptolyngbya sp. KC45 shows potential for application in beverages, providing high antioxidant capacity, physical stability, and safety. Under specific conditions, the phycobiliprotein can serve as an effective health-enhancing illuminated colorant.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Plant Sciences
Somayeh Rasoli-dogaheh, Mostafa Noroozi, Javad Khansha, Mohammad Ali Amoozegar, Rezvan Rahimi, Mahdi Moshtaghi Nikou, Tomas Hauer
Summary: A study on the diversity of cyanobacteria in the rainwater basin of the Persian Gulf region found a novel taxon, Khargia iranica, on Kharg Island. Similar strains were also found in South Italy and India, leading to the recognition of the new genus Khargia. Different analytical methods were used to identify and classify the new species.
Article
Plant Sciences
Ranina Radzi, Faradina Merican, Paul Broady, Peter Convey, Narongrit Muangmai, Wan Maznah Wan Omar, Sebastien Lavoue
Summary: Two cyanobacterial morphotypes isolated from Signy Island, Antarctica were characterized as belonging to the genus Wilmottia, specifically within the clade of W. murrayi. This extends the known distribution of W. murrayi in Antarctica and suggests a new combination, W. arthurensis.
Article
Plant Sciences
Kentaro Usui, Haruki Yamamoto, Takao Oi, Mitsutaka Taniguchi, Hitoshi Mori, Yuichi Fujita
Summary: This study demonstrated that extracellular vesicles mediate the secretion of Pchlide in YFC2 cells grown in the dark. Pchlide fractions were isolated using sucrose density gradient centrifugation, and mass spectrometry analysis revealed the presence of porin isoforms, TolC, and FG-GAP repeat-containing protein in the fractions, which are localized in the outer membrane.
Article
Biochemistry & Molecular Biology
Kittiya Phinyo, Khomsan Ruangrit, Jeeraporn Pekkoh, Yingmanee Tragoolpua, Thida Kaewkod, Kritsana Duangjan, Chayakorn Pumas, Nakarin Suwannarach, Jaturong Kumla, Wasu Pathom-aree, Wenhui Gu, Guangce Wang, Sirasit Srinuanpan
Summary: This study comprehensively characterized phytochemicals and evaluated multifunctional bioactivities in the ethanolic extract of cyanobacterium Leptolyngbya sp. KC45. The extract was found to contain chlorophylls, carotenoids, phenolics, and flavonoids. It demonstrated high antioxidant activity, inhibitory effects on enzymes related to diseases, and a strong cytotoxic effect on cancer cells, confirming the apoptosis mechanisms. It has potential applications in various industries.
Article
Microbiology
Naresh Kumar, Aniket Saraf, Sagarika Pal, Deeksha Mishra, Prashant Singh
Summary: This study isolated a dark-colored thin film of cyanobacteria growing on a submerged stone in Udhampur district, Jammu and Kashmir, India. The isolated strain was found to belong to a new genus, highlighting the need for further research in resolving taxonomic discrepancies.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Svatopluk Skoupy, Aleksandar Stanojkovic, Marketa Pavlikova, Aloisie Poulickova, Petr Dvorak
Summary: In this study, a novel cyanobacterial genus Argonema isolated from Antarctica was described using whole genome sequencing, morphology, and ecology. By utilizing the data from the Sequencing Read Archive, the study found that Argonema is cosmopolitan in arid regions, providing further evidence that endemic microbial taxa are likely to be rarer than expected.
SCIENTIFIC REPORTS
(2022)
Article
Biotechnology & Applied Microbiology
Suqin Wang, Leanne A. Pearson, Rabia Mazmouz, Tianzhe Liu, Brett A. Neilan
Summary: Iron availability limits the growth of many microorganisms, particularly those residing in high nutrient-low chlorophyll aquatic environments. Therefore, characterizing iron acquisition pathways in phytoplankton is essential for understanding nutrient cycling in our oceans.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Plant Sciences
Wittaya Tawong, Pongsanat Pongcharoen, Piyawat Pongpadung, Supat Ponza, Weerachai Saijuntha
Summary: In this study, two novel strains of cyanobacteria, identified as Amazonocrinis thailandica sp. nov., were isolated from moist rice field soil in Thailand. The characterization and analysis of the strains using a polyphasic approach revealed their distinct characteristics compared to other Amazonocrinis species, including morphology, phylogenetic relationship, and ecology.
Article
Biology
Dan Yao, Lei Cheng, Lianming Du, Meijin Li, Maurycy Daroch, Jie Tang
Summary: Microsatellites (SSRs) and compound microsatellites (CSSRs) in Leptolyngbya-like strains showed diverse patterns of distribution, abundance, density, and diversity in genomes. The numbers of SSRs and CSSRs were unevenly distributed and correlated with genome size and GC content, with differences in distribution patterns among phylogenetic groups. These microsatellites were predominantly located in coding regions, with unique motifs identified in CSSRs in multiple genomes.
Article
Biochemistry & Molecular Biology
Alexander Kettner, Matthias Noll, Carola Griehl
Summary: In this study, the PHB formation, biomass, and elemental composition of Leptolyngbya sp. NIVA-CYA 255 were investigated. The highest PHB yields were detected in NP- and N-deficiency conditions. The glycogen pool was reduced during mixotrophy, while lipid composition was not affected. This suggests that Leptolyngbya sp. NIVA-CYA 255 is a promising candidate for PHB production.
