| Title: | Chemical cues in the interaction of herbivory-prey induce consumer-specific morphological and chemical defenses in Phaeocystis globosa |
| Author(s): | Yang X; Yan Z; Li X; Li Y; Li K; |
| Address: | "Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; School of Ocean, Yantai University, Yantai 266071, China. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China. Electronic address: kli@yic.ac.cn" |
| DOI: | 10.1016/j.hal.2023.102450 |
| ISSN/ISBN: | 1878-1470 (Electronic) 1568-9883 (Linking) |
| Abstract: | "Bloom-forming algae Phaeocystis globosa is one of the most successful blooming algae in the oceans due to its capacity to sense grazer-associated chemical cues and respond adaptively to these grazer-specific cues with opposing shifts in phenotype. P. globosa produces toxic and deterrent compounds as chemical defenses. However, the origin of the signals and underlying mechanisms that triggered the morphological and chemical defenses remain enigmatic. Rotifer was chosen to establish an herbivore-phytoplankton interaction with P. globosa. The influences of rotifer kairomone and conspecific-grazed cue on morphological and chemical defenses in P. globosa were investigated. As a result, rotifer kairomones elicited morphological defenses and broad-spectrum chemical defenses, whereas algae-grazed cues elicited morphological defenses and consumer-specific chemical defenses. According to multi-omics findings, the difference in hemolytic toxicity caused by different stimuli may be related to the upregulation of lipid metabolism pathways and increased lipid metabolite content, while the inhibition of colonial formation and development of P. globosa may be caused by the downscaled production and secretion of glycosaminoglycans. The study demonstrated that zooplankton consumption cues were recognized by intraspecific prey and elicited consumer-specific chemical defenses, highlighting the chemical ecology of herbivore-phytoplankton interactions in the marine ecosystem" |
| Keywords: | *Haptophyta Herbivory Ecosystem Cues Phytoplankton/metabolism Algae-grazed cue Consumer-specific Harmful algae Inducible defense Kairomone; |
| Notes: | "MedlineYang, Xiao Yan, Zhi Li, Xiaodong Li, Yaxi Li, Ke eng Netherlands 2023/06/09 Harmful Algae. 2023 Jul; 126:102450. doi: 10.1016/j.hal.2023.102450. Epub 2023 May 5" |
