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Proteomic response of Neoporphyra haitanensis to dehydration-rehydration cycles

ABSTRACT: Seaweeds in the upper intertidal zone experience extreme desiccation during low tide, followed by rapid rehydration during high tide. Porphyra sensu lato are typical upper intertidal seaweeds. Thus, it is valuable to investigate the adaptive conditions and mechanisms of seaweed to desiccation-rehydration stress.

INSTRUMENT(S):

ORGANISM(S): Pyropia Haitanensis

TISSUE(S): Thallus

SUBMITTER: zekai wang

LAB HEAD: Zekai Wang

PROVIDER: PXD030324 | Pride | 2022-03-02

REPOSITORIES: Pride

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			Action	DRS
	N._haitanensis-5_RWC-1.msf	Msf
	N._haitanensis-5_RWC-1.pdResultView	Other
	N._haitanensis-5_RWC-1.raw	Raw
	N._haitanensis-5_RWC-2.msf	Msf
	N._haitanensis-5_RWC-2.pdResultView	Other

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Proteomic analysis of Neoporphyra haitanensis under desiccation stress

Project description:Colonization of land from marine environments was a major transition for biological life on Earth, and intertidal adaptation was a key evolutionary event in the transition from marine- to land-based lifestyles. Multicellular intertidal red algae exhibit the earliest, systematic, and successful adaptation to intertidal environments, with Porphyra sensu lato (Bangiales, Rhodophyta) being a typical example. We used proteomic analyse to reveal the complex regulation of rapid responses to intertidal dehydration/rehydration cycling within Neoporphyra haitanensis. These adaptations include rapid regulation of its photosynthetic system, a readily available capacity to utilize ribosomal stores, an excess of methylation supply to rapidly synthesize proteins, and a strong anti-oxidation system to dissipate excess redox energy upon exposure to air. These novel insights into the unique adaptations of red algae to intertidal lifestyles inform our understanding of adaptations to intertidal ecosystems and the unique evolutionary steps required for intertidal colonization by biological life.

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