Effects of Sulfur Deficiency on Algae
A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".
Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 5383
Special Issue Editor
Special Issue Information
Dear Colleagues,
Compared to other photosynthetic organisms, microalgae reproduce fast (within hours) and have simple growth requirements. Their metabolism depends only on the nutrients that each cell takes up from the medium and not from a metabolite exchange between cells. Nutritional deprivation in culture can be applied in varied ways, and its effects on cellular metabolic processes in a short span of time can be studied. Sulphur is one of the key components of algal cells; it is assimilated into numerous essential compounds, such as the amino acids cysteine and methionine, nonprotein thiols (glutathione), sulpholipids, cell wall constituents, vitamins, and cofactors (biotin, thiamine, CoA). Sulphur is also a constituent of dimethylsulphoniopropionate (DMSP), involved in algal responses to a variety of abiotic and biotic stresses, and of glutathione, an important antioxidant and a substrate for phytochelatin synthesis, so it is also involved in stress responses. Consequently, insufficient S nutrition reduces algal growth but also resistance to abiotic and biotic stresses.
At present, microalgae are considered excellent biofactories for the production of various relevant compounds and the sulfur limitation, for example, in some algae enhances lipid productivity or H2 gas production. The physiological and molecular mechanisms with which microalgae cope with S deprivation also represent an open and applicative research topic. In this Special Issue, articles (original research papers or reviews) that focus on the effects of S limitation in microalgae and its regulation, including biochemistry, physiology, genes, proteins, and metabolites, are welcome.
Prof. Dr. Simona Carfagna
Guest Editor
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Keywords
- Microalgae sulfur metabolism
- Cysteine synthesis and degradation
- Glutathione and oxidative stress
- Phytochelatin
- Regulation of sulfur metabolism
- Impact of sulfur deficiency in abiotic stress
- Sulfur assimilation
- Sulfur uptake
- Sulfur remobilization
- Bioactive compounds
- Culture systems
