Periodical drying or no drying during aquaculture affects the desiccation tolerance of a sublittoral Pyropia yezoensis strain

Li, Xiaolei; Wang, Wenjun; Liu, Fuli; Liang, Zhourui; Sun, Xiuyun; Yao, Haiqing; Wang, Feijiu

doi:10.1007/s10811-017-1227-y

Cited by 14 publications

(3 citation statements)

References 39 publications

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“…The tidally dictated dehydration of these seaweeds is not only a natural phenomenon but also a necessary process for the health of the algae in aquaculture. The benefits of dehydration are reflected in the fact that ultraviolet rays can reduce contaminants on thalli during dehydration, thereby reducing diseases [ 12 , 13 ]. Porphyra can be temporarily stored in cold storage with certain dryness before being returned to the sea to continue to grow [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Physiological and multi-omics responses of Neoporphyra haitanensis to dehydration-rehydration cycles

Wang

Chen

et al. 2022

BMC Plant Biol

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Background 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. Therefore, it is valuable to investigate the adaptive mechanisms of seaweed in response to dehydration-rehydration stress. Results A reduction in photosynthetic capacity and cell shrinkage were observed when N. haitanensis was dehydrated, and such changes were ameliorated once rehydrated. And the rate and extent of rehydration were affected by the air flow speed, water content before rehydration, and storage temperature and time. Rapid dehydration at high air-flow speed and storage at − 20 °C with water content of 10% caused less damage to N. haitanensis and better-protected cell activity. Moreover, proteomic and metabolomic analyses revealed the abundance members of the differentially expressed proteins (DEPs) and differentially abundant metabolites (DAMs) mainly involved in antioxidant system and osmotic regulation. The ascorbic acid-glutathione coupled with polyamine antioxidant system was enhanced in the dehydration response of N. haitanensis. The increased soluble sugar content, the accumulated polyols, but hardly changed (iso)floridoside and insignificant amount of sucrose during dehydration indicated that polyols as energetically cheaper organic osmolytes might help resist desiccation. Interestingly, the recovery of DAMs and DEPs upon rehydration was fast. Conclusions Our research results revealed that rapid dehydration and storage at − 20 °C were beneficial for recovery of N. haitanensis. And the strategy to resist dehydration was strongly directed toward antioxidant activation and osmotic regulation. This work provided valuable insights into physiological changes and adaptative mechanism in desiccation, which can be applied for seaweed farming.

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Section: Introductionmentioning

confidence: 99%

Physiological and multi-omics responses of Neoporphyra haitanensis to dehydration-rehydration cycles

Wang

Chen

et al. 2022

BMC Plant Biol

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“…Long and intensive cultivation of N. yezoensis and N. haitanensis in the main production areas leads to problems such as decreasing production and quality, as well as increasing occurrence of diseases, especially under the global climate and environmental changes. Recruitment of new laver species and geographically distinct wild strains of the dominant cultivated species has been recommended and implemented to diversify genetic resources and in turn to strengthen tolerance to climate change and improve the product quality [6][7][8][9][10][11]. In recent years, a process to extend the dominant laver cultivars to offshore deep-sea areas and to develop northward industrial cultivation of laver in China is ongoing [6,10].…”

Section: Introductionmentioning

confidence: 99%

“…Recruitment of new laver species and geographically distinct wild strains of the dominant cultivated species has been recommended and implemented to diversify genetic resources and in turn to strengthen tolerance to climate change and improve the product quality [6][7][8][9][10][11]. In recent years, a process to extend the dominant laver cultivars to offshore deep-sea areas and to develop northward industrial cultivation of laver in China is ongoing [6,10]. N. haitanensis has been cultivated in Jiangsu, Shandong and even Liaoning province, with culture area of more than 1000 ha.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Ecological Factors on the Contents of Nutritional Components and Minerals in Laver Based on Open Sea Culture System

Liang

Wang

Liu

et al. 2022

JMSE

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Laver is a popular food for its high nutritional value, which can change among culture areas and along with the progression of harvest. Neopyropia yezoensis and Neoporphyra haitanensis were cultured in succession in Taoluo and Muping, north China. The chemical composition of laver samples together with some ecological factors in the farms were investigated. From September to December, salinity increased while water temperature decreased in both areas. Dissolved inorganic nitrogen (DIN) and N:P decreased in Taoluo while increasing in Muping. Both N. yezoensis and N. haitanensis contained high levels of protein (26.90–41.38% DW) and low contents of fat (0.36–0.74% DW). High levels of minerals were detected in both species. The contents of protein, total amino acids, and total minerals in N. haitanensis increased significantly, while sugar content decreased significantly from September to December. The gray correlation analysis result implied that the typical ecological factors (DIN, dissolved inorganic phosphorus, N:P, pH, salinity, temperature, and transparency) have a great influence on accumulation of the crude nutrient, amino acid, fatty acid components, and mineral components in laver. The coefficient of variation analysis result also showed that environmental heterogeneity obviously enhanced differences in the contents of protein, amino acid, and trace elements in N. yezoensis. In addition, the principal component analysis result showed that the N. yezoensis strain ‘Huangyou No. 1’ had the highest comprehensive evaluation score in the four tested N. yezoensis strains, indicating that it has the best comprehensive quality and greatest exploitable value. We hope these findings will help to improve future laver breeding and farming.

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Effects of periodical drying and non-drying on nutrient content and desiccation tolerance of an intertidal Pyropia yezoensis strain subject to farming conditions

Wang

Sun

et al. 2018

J Appl Phycol

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Periodical drying or no drying during aquaculture affects the desiccation tolerance of a sublittoral Pyropia yezoensis strain

Cited by 14 publications

References 39 publications

Physiological and multi-omics responses of Neoporphyra haitanensis to dehydration-rehydration cycles

Physiological and multi-omics responses of Neoporphyra haitanensis to dehydration-rehydration cycles

The Influence of Ecological Factors on the Contents of Nutritional Components and Minerals in Laver Based on Open Sea Culture System

Effects of periodical drying and non-drying on nutrient content and desiccation tolerance of an intertidal Pyropia yezoensis strain subject to farming conditions

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