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Mechanisms of Algae Adapting to Environmental Changes
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Mechanisms of Algae Adapting to Environmental Changes

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: closed (30 April 2025) | Viewed by 1165

Special Issue Editor

Dr. Maksymilian Zienkiewicz

E-Mail Website
Guest Editor
University of Warsaw, Warsaw, Poland
Interests: Cyanidioschyzon

Special Issue Information

Dear Colleagues,

Algae play a crucial role in aquatic ecosystems and are essential for global carbon cycling and oxygen production. Their ability to adapt to environmental changes is increasingly relevant, especially in the context of climate change, pollution, and habitat alteration. Mechanisms such as phenotypic plasticity, genetic adaptation, and symbiotic relationships enable algae to thrive under varying conditions, including fluctuations in light, temperature, salinity, and nutrient availability. Research in this field enhances our understanding of algal biology and informs conservation strategies and the development of sustainable practises in aquaculture and biofuel production. Exploring the intricate ways algae respond to environmental stressors provides key insights that could lead to innovative approaches for ecosystem management and restoration.

This Special Issue of Plants will highlight mechanisms of algae adapting to environmental changes.

Dr. Maksymilian Zienkiewicz
Guest Editor

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Keywords

  • environmental changes
  • algae
  • mechanisms of adaptation
  • environmental stress
  • genetic modification

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Published Papers (1 paper)

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Research

21 pages, 8695 KiB  
Article
Investigation of a Rare Occurrence of a Diatomaceous Coating of the Cotswold Weir Wall on the Condamine River, Australia
by John P. Thompson, John Standley and Rachel C. Hancock
Plants 2025, 14(3), 332; https://doi.org/10.3390/plants14030332 - 23 Jan 2025
Viewed by 763
Abstract
A white encrustation of the Cotswold Weir wall in the lower reaches of the Condamine River, a tributary of the Murray–Darling River system in semi-arid Australia, was investigated following community concern that it indicated health risks from an unknown substance in the water [...] Read more.
A white encrustation of the Cotswold Weir wall in the lower reaches of the Condamine River, a tributary of the Murray–Darling River system in semi-arid Australia, was investigated following community concern that it indicated health risks from an unknown substance in the water resulting from mining and agricultural enterprises in the catchment. The vitreous white surface consisted of closely packed frustules of diatoms, observed by scanning electron microscopy, with an underlying layer of clay particles and dried filamentous green algae. Pennate diatoms identified in the white encrustation were the benthic species Nitzschia palea (predominant), Eolimna subminiscula, Craticula aff. cuspidata, Navicula viridula var. rostellata, and Luticola mutica. The centric diatom species Melosira varians was also present as filamentous chains of cylindrical frustules among the aggregated pennate diatom frustules. The encrustation was the remains of a periphyton (biofilm) of diatoms and green algae that had developed during protracted stream flow over the weir wall following record flooding. A dry period had resulted in the death of the diatoms and exposure of their aggregated siliceous frustules as a vitreous white coating. All diatom species identified are considered tolerant of eutrophic and mildly saline conditions. Chemical analyses of water from the Cotswold Weir, compared to long-term records, revealed higher salinity, with changes from March when the river was flowing to September when the white coating was noted, in electrical conductivity (299 to 461 µS/cm), and in sodium (26 to 43 mg/L) and chloride (26 to 75 mg/L) concentrations, respectively. Total nitrogen (0.82 to 1.6 mg/L) and total phosphorus (0.24 to 0.094 mg/L) were at mesotrophic and eutrophic concentrations, respectively, together with substantial dissolved silica concentrations (18 to 11 mg/L). Atomic ratios for total nitrogen/total phosphorus (7.6 to 37.6), nitrate-nitrogen/orthophosphate-phosphorus (2.3 to 274), and dissolved silica–silicon:orthophosphate-phosphorus (81.7 to 749) probably favoured diatoms over other photoautotrophs. While the diatomaceous encrustation indicated no health risks from the weir water, continued watch is required to avoid eutrophication and salinization of the river. Full article
(This article belongs to the Special Issue Mechanisms of Algae Adapting to Environmental Changes)
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