Results 71 to 80 of about 5,716,355 (164)

Extraction and analysis of mycosporine-like amino acids in marine algae

, 2015
Marine organisms use mycosporine-like amino acids (MAAs) as biological sunscreens for the protection from damaging ultraviolet (UV) radiation and the prevention of oxidative stress.
Braun, Christopher, Rosic, Nedeljka N., Braun, Christoph, Kvaskoff, David, Rosic, Nedeljka N, Nedeljka N. Rosic, David Kvaskoff, Christoph Braun   +7 more
core   +1 more source

Nature‐Inspired Uv Filters: Synthetic Mycosporine‐Like Amino Acids and Gadusol Analogs for Enhanced Photoprotective and Antioxidant Performance

ChemPhotoChem, Volume 9, Issue 11, November 11, 2025.
Photoprotection is a current and relevant topic; therefore, the development of new sunscreens is necessary. To this end, nature is examined for molecules such as mycosporine‐like amino acids and gadusol. Through rational design, this study has successfully synthesized new UV filters and evaluated their photoprotective and antioxidant properties ...
Leonardo López‐Cóndor, Raúl Losantos, Dalila Elisabet Orallo, María Florencia Fangio, María Sandra Churio, Diego Sampedro   +5 more
wiley   +1 more source

Production Yield Enhancement of Mycosporine-like amino acid(MAA)s in Transformed Microalgae Culture by Radiofrequency

Journal of the Korea Academia-Industrial cooperation Society, 2014
In sea water, microalgae are exposed to a range of critical environmental conditions. Microalgae are protected from UV-A radiation due to the presence of mycosporine like amino acids(MAAs). Owing to the UV-A absorption properties of MAAs, they are used widely as a UV protecting ingredient in cosmetics.
Hyo Hyun Seo, Mi Young Song, Atul Kulkarni, Sung-Suk Suh, Taek-Kyun Lee, Sang Hyun Moh   +5 more
openaire   +2 more sources

Local Adaptation? Enhanced Fitness Under Regional UVB Intensities in a Rock Pool Bdelloid Rotifer

Ecology and Evolution, Volume 15, Issue 10, October 2025.
Bdelloids from the Chihuahuan Desert appear to have adapted to regional UVB intensities in a localized manner. Bdelloids exposed to winter or summer levels of UVB intensity had a longer lifespan and a higher net reproductive rate. ABSTRACT Exposure to ultraviolet radiation (UVR) can decrease lifespan and reduce fecundity in aquatic invertebrates ...
Maribel J. Baeza, Elizabeth J. Walsh
wiley   +1 more source

Mycosporine-Like Amino Acids (MAAs) Profile of cyanobacteria from Different Historical Kunds of Varanasi, India

International Journal of Applied Sciences and Biotechnology, 2019
Copious facts have demonstrated that UV radiation is harmful to cyanobacteria. Sun-screening compounds such as mycosporine-like amino acids (MAAs) protect these organisms from deleterious UV radiation. MAAs absorb UV radiation in the range of 310 to 362 nm.
Rajeshwar P. Sinha, Vidya Singh, Deepak Kumar, Haseen Ahmed, Abha Pandey, Sonal Mishra   +5 more
openaire   +2 more sources

Nitrogen Substrate Impacts Microcystis aeruginosa Exometabolome Composition

Environmental Microbiology Reports, Volume 17, Issue 5, October 2025.
We used untargeted metabolomics to identify differences in the compounds exuded into culture media by three strains of M. aeruginosa grown on three N substrate treatments (NO3−, NH4+, and urea). Results showed that the usage of different N substrates changes the exometabolome of toxic and non‐toxic strains of M. aeruginosa.
Caroline M. Peck, Lauren N. Hart, Roland Kersten, Jenan J. Kharbush   +3 more
wiley   +1 more source

Glycosylated Porphyra-334 and Palythine-Threonine from the Terrestrial Cyanobacterium Nostoc commune

Marine Drugs, 2013
Mycosporine-like amino acids (MAAs) are water-soluble UV-absorbing pigments, and structurally different MAAs have been identified in eukaryotic algae and cyanobacteria.
Toshio Sakamoto, Takumi Nishiuchi, Seiichi Matsugo, Tomoya Asano, Ehsan Nazifi, Minami Yamaba, Naoki Wada   +6 more
doaj   +1 more source

Identification of Mycosporine-like amino acids and expression of 3-Dehydroquinate synthase gene in UV radiations-induced Deinococcus radiodurans R1 [PDF]

, 2020
Mycosporine-like amino acids (MAAs) are a group of more than 40 metabolites originated from 4-deoxygadusol featuring antioxidants, growth stimulation, and UV protective properties in many microorganisms. In D.
Ikeno, Shinya, 8066, イケノ, シンヤ, 池野, 慎也, Huwaidi, Alaa, 30882, 30881, Shaharuddin, Noor Azmi, 331, Ahmad, Khairunisa Amira, 30884, 30883, Syahir, Amir, Magdy, Mahmoud, 8646054000, 20437792, 30886   +16 more
core  

Novel glycosylated mycosporine-like amino acids with radical scavenging activity from the cyanobacterium Nostoc commune [PDF]

, 2011
Mycosporine-like amino acids (MAAs) are UV absorbing pigments, and structurally distinct MAAs have been identified in taxonomically diverse organisms. Two novel MAAs were purified from the cyanobacterium Nostoc commune, and their chemical structures were
Sakamoto, Toshio, 20464050, Nazifi, Ehsan, 30148126, Kunita, Shinpei, 15508, 15826, 311, 687, Matsui, Kei, 15825, 70324069, 15824, Wada, Naoki, Matsugo, Seiichi   +14 more
core   +1 more source

Characterization of Mycosporine-Like Amino Acids in Chlorophyll f Producing Cyanobacteria from Shaded Niches [PDF]

Cyanobacteria are the oldest photoautotrophic prokaryotes that can perform plant-like oxygenic photosynthesis. The obligate requirement of sunlight for photosynthesis inevitably exposes cyanobacteria to UV radiation.
Ali, Mahamane, Qiu, Bao-Sheng, Maina Boukar, Mamadou Chetima, Saley, Moussa Diagara, Wang, Kai, Chetima Bagana, Mai Moussa, Zhang, Zhong-Chun   +6 more
core   +5 more sources