Specific acclimations to phosphorus limitation in the marine diatom Phaeodactylum tricornutum.

Gianluca Dell’Aquila,Uwe G Maier

doi:10.1515/hsz-2020-0197

Gianluca Dell’Aquila, Uwe G Maier

Open Access

https://doi.org/10.1515/hsz-2020-0197

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Abstract

Phosphorus (P)is a crucial element and diatoms, unicellular phototrophic organisms, evolved efficient strategies to handle limiting phosphorus concentrations in the oceans. In the last decade, several groups investigated the model diatom Phaeodactylum tricornutum concerning phosphate homeostasis mechanisms. Here, we summarize the actual status of knowledge by linking the available data sets, thereby indicating experimental limits but also future research directions.

Highlights

Phosphorus (P) is an essential element for all forms of life (Paytan and McLaughlin 2007)
Oceans are highly variable in respect to phosphorus bioavailability (Benitez-Nelson 2000; Paytan and McLaughlin 2007), which strongly influences the ecology and physiology of marine phytoplankton (Lin et al 2016)
The specific P-starvation response, such as upregulation of phosphatases or phosphate transporters, must be tightly controlled and generally, eukaryotes regulate transcription factors (TFs) essential for the expression of genes encoding factors involved in the phosphate starvation response (PSR) (Rubio et al 2001)

Summary

Introduction

Phosphorus (P) is an essential element for all forms of life (Paytan and McLaughlin 2007). That is the case of P. tricornutum, a model organism for studying cellular responses related to environmental conditions and especially to P-limitations.

Results

Conclusion