Abstract By limiting the nitrogen source to glutamic acid, we isolated cyclic peptides from Euglena gracilis containing asparagine and non‐proteinogenic amino acids. Structure elucidation was accomplished through spectroscopic methods, mass spectrometry chemical degradation. The euglenatides potently inhibit pathogenic fungi cancer cell lines e.g., euglenatide B exhibiting IC 50 values of 4.3 μ...

Airborne dispersal of microalgae has largely been a blind spot in environmental biological studies because of their low concentration in the atmosphere and the technical limitations in investigating microalgae from air samples. Recent studies show that airborne microalgae can survive air transportation and interact with the environment, possibly influencing their deposition rates. This minirevi...

Background An economical strategy for producing microalgae as biofuel feedstock is driven by the freshwater and nutrients input. In this study, seawater was applied to limnetic algal cultivation and the behavior of algae in seawater media was observed including growth, lipid synthesis, and ultrastructure. To make seawater cater algae, a kind of wastewater, anaerobically digested effluent from k...

A freshwater microalga, Chlorella vulgaris, was grown in the presence of varying phosphate concentrations (<10-500μg/L P) and environmentally realistic concentrations of arsenate (As(V)) (5-50μg/L As). Arsenic speciation in the culture medium and total cellular arsenic were measured using AEC-ICP-MS and ICP-DRC-MS, respectively, to determine arsenic biotransformation and uptake in the various p...

Contamination of aquatic ecosystems linked to anthropogenic activity is currently a major concern; therefore, ecotoxicological studies are needed assess its effect on organisms. The main objective this study was investigate the effects different pollutants microalgae in search sensitive biomarkers that can promote common cytotoxic response regardless contaminant. Cultures freshwater microalga C...

The acute toxicity of Tl(I) to the microalga, Pseudokirchneriella subcapitata, the planktonic crustaceans, Daphnia magna and Daphnia pulex, and early-life stage of the zebrafish, Danio rerio, has been studied according to OECD protocols. Toxicological end-point concentrations for the microalga ranged from 17 μg l(-1) for a 72 h EyC25 (yield inhibition) to 80 μg l(-1) for a 72 h ErC50 (growth in...

Abstract Benzophenones (BPs) are one of the most widely used UV-filters and previous flow cytometric studies have shown that these aquatic emerging pollutants alter physiology freshwater microalga Chlamydomonas reinhardtii . In order to obtain a more detailed study different cellular metabolic pathways affected, changes caused by BPs in transcriptome C. were investigated using RNA-Seq analysis ...