Impacts of salt stress on locomotor and transcriptomic responses in the intertidal gastropod Batillaria attramentaria

Phuong Thao Ho, Hwanseok Rhee, Jungmin Kim, Chaehwa Seo, Joong Ki Park, Curtis Robert Young, Yong Jin Won

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Salinity is one of the most crucial environmental factors that structures biogeographic boundaries of aquatic organisms, affecting distribution, abundance, and behavior. However, the association between behavior and gene regulation underlying acclimation to changes in salinity remains poorly understood. In this study, we investigated the effects of salinity stress on behavior (movement distance) and patterns of gene expression (using RNA sequencing) of the intertidal gastropod Batillaria attramentaria. We examined responses to short-term (1-hour) and long-term (30-day) acclimation to a range of salinities (43, 33 [control], 23, 13, and 3 psu). We found that the intertidal B. attramentaria is able to tolerate a broad range of salinity from 13 to 43 psu but not the acute low salinity of 3 psu. Behavioral experiments showed that salt stress significantly influenced snails’ movement, with lower salinity resulting in shorter movement distance. Transcriptomic analyses revealed critical metabolic pathways and genes potentially involved in acclimation to salinity stress, including ionic and osmotic regulation, signal and hormonal transduction pathways, water exchange, cell protection, and gene regulation or epigenetic modification. In general, our study presents a robust, integrative laboratory-based approach to investi-.

Original languageEnglish
Pages (from-to)224-241
Number of pages18
JournalBiological Bulletin
Volume236
Issue number3
DOIs
StatePublished - 1 Jun 2019

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