文献类型： 外文期刊

作者： Xu, Dong ¹ ; Zheng, Guanchao ¹ ; Brennan, Georgina ³ ; Wang, Zhuonan ⁴ ; Jiang, Tao ¹ ; Sun, Ke ¹ ; Fan, Xiao ¹ ; Bowler, Chris ⁵ ; Zhang, Xiaowen ¹ ; Zhang, Yan ¹ ; Wang, Wei ¹ ; Wang, Yitao ¹ ; Li, Yan ¹ ; Wu, Haiyan ¹ ; Li, Youxun ⁶ ; Fu, Fei-Xue ⁷ ; Hutchins, David A. ⁷ ; Tan, Zhijun ¹ ; Ye, Naihao ¹ ;

作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Natl Key Lab Mariculture Biobreeding & Sustainable, Qingdao, Peoples R China

2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao, Peoples R China

3.ICM CSIC, Inst Marine Sci, Barcelona, Spain

4.Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL USA

5.Univ PSL, Ecole Normale Super, Inst Biol ENS IBENS, Dept Biol,CNRS,INSERM, F-75005 Paris, France

6.Marine Sci Res Inst Shandong Prov, Natl Oceanog Ctr, Qingdao, Peoples R China

7.Univ Southern Calif, Dept Biol Sci, Los Angeles, CA 90089 USA

期刊名称：ISME JOURNAL （ 影响因子：11.0； 五年影响因子：12.3 ）

ISSN： 1751-7362

年卷期： 2023 年 17 卷 4 期

页码：

收录情况： SCI

摘要： Ocean warming (OW) and acidification (OA) are recognized as two major climatic conditions influencing phytoplankton growth and nutritional or toxin content. However, there is limited knowledge on the responses of harmful algal bloom species that produce toxins. Here, the study provides quantitative and mechanistic understanding of the acclimation and adaptation responses of the domoic acid (DA) producing diatom Pseudo-nitzschia multiseries to rising temperature and pCO(2) using both a one-year in situ bulk culture experiment, and an 800-day laboratory acclimation experiment. Ocean warming showed larger selective effects on growth and DA metabolism than ocean acidification. In a bulk culture experiment, increasing temperature +4 degrees C above ambient seawater temperature significantly increased DA concentration by up to 11-fold. In laboratory when the long-term warming acclimated samples were assayed under low temperatures, changes in growth rates and DA concentrations indicated that P. multiseries did not adapt to elevated temperature, but could instead rapidly and reversibly acclimate to temperature shifts. However, the warming-acclimated lines showed evidence of adaptation to elevated temperatures in the transcriptome data. Here the core gene expression was not reversed when warming-acclimated lines were moved back to the low temperature environment, which suggested that P. multiseries cells might adapt to rising temperature over longer timescales. The distinct strategies of phenotypic plasticity to rising temperature and pCO(2) demonstrate a strong acclimation capacity for this bloom-forming toxic diatom in the future ocean.