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Calcium Transport Proteins in Fungi: The Phylogenetic Diversity of Their Relevance for Growth, Virulence, and Stress Resistance.


ABSTRACT: The key players of calcium (Ca2+) homeostasis and Ca2+ signal generation, which are Ca2+ channels, Ca2+/H+ antiporters, and Ca2+-ATPases, are present in all fungi. Their coordinated action maintains a low Ca2+ baseline, allows a fast increase in free Ca2+ concentration upon a stimulus, and terminates this Ca2+ elevation by an exponential decrease - hence forming a Ca2+ signal. In this respect, the Ca2+ signaling machinery is conserved in different fungi. However, does the similarity of the genetic inventory that shapes the Ca2+ peak imply that if "you've seen one, you've seen them all" in terms of physiological relevance? Individual studies have focused mostly on a single species, and mechanisms elucidated in few model organisms are usually extrapolated to other species. This mini-review focuses on the physiological relevance of the machinery that maintains Ca2+ homeostasis for growth, virulence, and stress responses. It reveals common and divergent functions of homologous proteins in different fungal species. In conclusion, for the physiological role of these Ca2+ transport proteins, "seen one," in many cases, does not mean: "seen them all."

SUBMITTER: Lange M 

PROVIDER: S-EPMC6997533 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Calcium Transport Proteins in Fungi: The Phylogenetic Diversity of Their Relevance for Growth, Virulence, and Stress Resistance.

Lange Mario M   Peiter Edgar E  

Frontiers in microbiology 20200128


The key players of calcium (Ca<sup>2+</sup>) homeostasis and Ca<sup>2+</sup> signal generation, which are Ca<sup>2+</sup> channels, Ca<sup>2+</sup>/H<sup>+</sup> antiporters, and Ca<sup>2+</sup>-ATPases, are present in all fungi. Their coordinated action maintains a low Ca<sup>2+</sup> baseline, allows a fast increase in free Ca<sup>2+</sup> concentration upon a stimulus, and terminates this Ca<sup>2+</sup> elevation by an exponential decrease - hence forming a Ca<sup>2+</sup> signal. In this re  ...[more]

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