The ecologies (salinity tolerance) of many diatoms are largely unknown, despite their potential to contribute to more detailed paleoenvironmental reconstructions. This study therefore aimed to investigate the relationship between diatom species and salinity. We cultured seven cosmopolitan benthic diatom species obtained from Lake Akan, a freshwater inland lake in Japan: , , , , , sp. and . Each species was cultured at eleven salinities between 0‰ and 50‰. , and had the highest growth rate at a salinity of 3‰, with no further increase observed above 25‰. However, had the highest growth rate at a salinity of 5‰, with no increase at salinities ≥ 30‰. These results suggest that , , , and grow in freshwater to brackish-water environments. and sp. proliferated at all salinities, indicating that they can adapt to hypersaline environments. However, did not survive in salinities >10‰, making it the species with the narrowest salinity tolerance range. These results provide new knowledge that improves the understanding of the ecology of these species in modern environments and offer insights into paleoenvironmental reconstructions through diatom analysis.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10369448 | PMC |
| http://dx.doi.org/10.3897/phytokeys.229.104449 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Spice-Induced Metal Contamination and Microbiological Risk Assessment of Instant Noodles Prepared for Human Consumption.
Biol Trace Elem Res
October 2024
Department of Medical Laboratory Science, College of Medicine of the University of Lagos, Idi-Araba, Lagos, Nigeria.
With the rising worries of potential metal contamination in cooked noodles, this study aimed at unravelling, for the first time, the possible source of metal contamination in cooked noodles. Noodles cooked with full spices (CWFS), cooked with half spices (CWHS), cooked with quarter spices (CWQS), and cooked with no spices (CWNS: control) and their spices were analysed for metals using inductively coupled plasma-atomic emission spectrometry. The microbiological quality of the noodles was also evaluated.
View Article and Find Full Text PDFHormonal and haematological biomarkers as indicators of stress induced by Diuron herbicide toxicity on Clarias gariepinus (Burchell, 1822) sub-adults.
Comp Biochem Physiol C Toxicol Pharmacol
February 2024
Department of Zoology and Environmental Biology, Faculty of Biological Sciences, University of Calabar, Calabar, Cross River State, Nigeria.
Diuron is a globally used herbicide for weed control but has anti-androgenic effects on androgens (testosterone and androstenedione), antagonist effects on thyroid hormone signaling, and haematological effects due to their biotransformation in fish. Endocrine-disrupting biomarkers such as thyroid hormones, sex hormones, and haematological indices of Clarias gariepinus sub-adults exposed to sub-lethal diuron concentrations were studied over a 28-day period. C.
View Article and Find Full Text PDFIdeal water temperature environment for giant Marimo (Aegagropila linnaei) in Lake Akan, Japan.
Sci Rep
October 2023
Marimo Research Center, Kushiro Board of Education, Kushiro, 085-0467, Japan.
Aegagropila linnaei is a filamentous green algal species that often forms beautiful spherical shapes called "lake balls" or "Marimo". A. linnaei were once globally distributed around the world, but the population has been declining for several decades.
View Article and Find Full Text PDFSeven taxa (Bacillariophyta) from Lake Akan (Japan) and their salinity tolerances.
PhytoKeys
July 2023
Department of Botany, National Museum of Nature and Sciences, Tsukuba, Ibaraki 305-0005, Japan Department of Botany, National Museum of Nature and Science Tsukuba Japan.
The ecologies (salinity tolerance) of many diatoms are largely unknown, despite their potential to contribute to more detailed paleoenvironmental reconstructions. This study therefore aimed to investigate the relationship between diatom species and salinity. We cultured seven cosmopolitan benthic diatom species obtained from Lake Akan, a freshwater inland lake in Japan: , , , , , sp.
View Article and Find Full Text PDFEffects of High Irradiance and Low Water Temperature on Photoinhibition and Repair of Photosystems in Marimo () in Lake Akan, Japan.
Int J Mol Sci
December 2022
Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-0033, Japan.
The green alga often forms spherical aggregates called "marimo" in Lake Akan in Japan. In winter, marimo are exposed to low water temperatures at 1-4 °C but protected from strong sunlight by ice coverage, which may disappear due to global warming. In this study, photoinhibition in marimo was examined at 2 °C using chlorophyll fluorescence and 830 nm absorption.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!