Weakened growth, cell division, and energy metabolism, but enhanced resistance, signaling, and anabolism: responses of Ulva prolifera to copper elucidated by omics

Cai, Chuner; Liu, Xuanhong; Zhao, Hui; Jiang, Ting; Jia, Rui; He, Peimin

doi:10.1007/s10811-021-02527-8

Cited by 12 publications

(3 citation statements)

References 64 publications

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“…However, the results of this study revealed Due to the controlled and closed system used in this study, the factors interfering with the absorption of Zn by Ulva lactuca L. must come from the initial Zn content and Ulva lactuca L. itself. Although Zn is an essential element for the biological metabolism of algae, when a specific concentration is exceeded, Zn can also become a substance harmful to organisms [17]. In order to obtain more accurate measurements, the initial Zn concentration used in the experiment far exceeded the Zn concentration level in normal seawater.…”

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confidence: 99%

Study on the Adsorption and Absorption Behaviors of Ulva lactuca L. for Zn2+ in Seawater

Li¹,

Chen²,

Li³

et al. 2022

Pol. J. Environ. Stud.

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Zn is an essential substance for the metabolism of marine algae, and its biogeochemical cycle in coastal waters needs to be clarified by an appropriate biological indicator. In this study, the distribution characteristics of Zn 2+ on the surface of alga Ulva lactuca L. (externalization) and alga utilization (internalization) were analyzed through simulating. The results showed that during the initial cultivation period (0 h-72 h), the Zn 2+ enrichment of Ulva lactuca L. was mainly externalization. As the culture time was prolonged, this behavior gradually turned into internalization. The final internalization amount of Zn 2+ was 10.35 μg•g −1 , and the externalization amount was 9.14 μg•g −1 . Ulva lactuca L. exhibited apparent Zn enrichment behavior. The adsorption capacity in the system had a linear relationship with the concentration of Zn and total organic carbon (TOC) in the solution. The linear relationship became gradually stronger with cultivation time. In summary, Ulva lactuca L. can become a crucial biological indicator for monitoring coastal Zn under natural conditions.

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Section: Author Copy • Author Copy • Author Copy • Author Copy • Auth...mentioning

confidence: 99%

Study on the Adsorption and Absorption Behaviors of Ulva lactuca L. for Zn2+ in Seawater

Li¹,

Chen²,

Li³

et al. 2022

Pol. J. Environ. Stud.

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“…Studies have also explored the underlying mechanisms of action of these stress responsive genes in seaweeds. Some of the seaweeds that have been studied at the molecular level include Ulvaceae such as U. prolifera [ 18 , 19 ], U. linza [ 20 ], and U. compressa [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic Changes Induced by Low and High Concentrations of Heavy Metal Exposure in Ulva pertusa

Seo

Park

et al. 2023

Toxics

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The impact of sewage and wastewater pollution on marine ecosystems is of increasing concern due to the rapid accumulation of heavy metals in seaweeds inhabiting near-shore environments. Seaweeds can be severely damaged by heavy metals throughout their life cycles. Although the physiological and ecological effects of heavy metal exposure have been studied, there is limited research on their molecular responses. Ulva pertusa is a prevalent seaweed species in South Korea and is ecologically significant in coastal ecosystems. We utilized high-throughput RNA sequencing to analyze changes in the transcriptome profiles of U. pertusa under low concentrations of heavy metals (MPS) and high concentrations of copper (MPS-Cu) and cadmium (MPS-Cd). Differential gene expression analysis revealed that 53 (control vs. MPS), 27 (MPS vs. MPS-Cd), and 725 (MPS vs. MPS-Cu) genes were expressed differentially. Differentially expressed genes identified in our study included those with protective roles against oxidative stress and those involved in metal transport to the vacuole. Furthermore, exposure to heavy metal stress had a negative impact on the photosynthetic apparatus structural proteins of U. pertusa, resulting in photosynthetic inhibition. Moreover, exposure to high concentrations of copper resulted in the activation of carbon-related metabolism. These findings contribute to our understanding of the molecular mechanisms underlying heavy metal toxicity in U. pertusa.

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“…On the other hand, U. prolifera is a macroalga characterized by high palatability and high levels of microelements, making it an important food item for marine herbivores and a candidate additive for animal feeds [37]. It has been widely used as an algal model to detect physiological changes due to various stresses by means of metabolomic investigations [38,39].…”

Section: Introductionmentioning

confidence: 99%

Responses of the Macroalga Ulva prolifera Müller to Ocean Acidification Revealed by Complementary NMR- and MS-Based Omics Approaches

et al. 2022

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Ocean acidification (OA) is a dramatic perturbation of seawater environments due to increasing anthropogenic emissions of CO2. Several studies indicated that OA frequently induces marine biota stress and a reduction of biodiversity. Here, we adopted the macroalga Ulva prolifera as a model and applied a complementary multi-omics approach to investigate the metabolic profiles under normal and acidified conditions. Our results show that U. prolifera grows at higher rates in acidified environments. Consistently, we observed lower sucrose and phosphocreatine concentrations in response to a higher demand of energy for growth and a higher availability of essential amino acids, likely related to increased protein biosynthesis. In addition, pathways leading to signaling and deterrent compounds appeared perturbed. Finally, a remarkable shift was observed here for the first time in the fatty acid composition of triglycerides, with a decrease in the relative abundance of PUFAs towards an appreciable increase of palmitic acid, thus suggesting a remodeling in lipid biosynthesis. Overall, our studies revealed modulation of several biosynthetic pathways under OA conditions in which, besides the possible effects on the marine ecosystem, the metabolic changes of the alga should be taken into account considering its potential nutraceutical applications.

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Weakened growth, cell division, and energy metabolism, but enhanced resistance, signaling, and anabolism: responses of Ulva prolifera to copper elucidated by omics

Cited by 12 publications

References 64 publications

Study on the Adsorption and Absorption Behaviors of <i>Ulva lactuca</i> L. for Zn<sup>2+</sup> in Seawater

Study on the Adsorption and Absorption Behaviors of <i>Ulva lactuca</i> L. for Zn<sup>2+</sup> in Seawater

Transcriptomic Changes Induced by Low and High Concentrations of Heavy Metal Exposure in Ulva pertusa

Responses of the Macroalga Ulva prolifera Müller to Ocean Acidification Revealed by Complementary NMR- and MS-Based Omics Approaches

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