Phosphorus starvation induces the synthesis of novel lipid class diacylglyceryl glucuronide and diacylglyceryl-N,N,N-trimethylhomoserine in two species of cold-adapted microalgae Raphidonema (Chlorophyta).

ABSTRACT: Microalgae possess diverse lipid classes as components of structural membranes and have adopted various lipid remodeling strategies involving phospholipids to cope with a phosphorus (P)-limited environment. Here, we report a unique adaptative strategy to P deficient conditions in two cold-adapted microalgae, Raphidonema monicae and Raphidonema nivale, involving the lipid class diacylglyceryl glucuronide (DGGA) and the betaine lipid diacylglyceryl-N,N,N-trimethylhomoserine. Lipidomic analyses showed that these two lipid classes were present only in trace amounts in nutrient replete conditions, whereas they significantly increased under P-starvation concomitant with a reduction in phospholipids, suggesting a physiological significance of these lipid classes to combat P-starvation. Additional

SUBMITTER: Suzuki H 

PROVIDER: S-EPMC11771548 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature