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Conitz, Jan M.; Fagen, Robert; Lindstrom, Sandra C.; Plumley, F. Gerald; Stekoll, Michael S.

doi:10.1023/a:1011976431508

Cited by 20 publications

(7 citation statements)

References 33 publications

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“…Inorganic nitrate is one of the most important raw materials for Vertical bars represent standard deviation synthesis of protein or nucleic acid, and has a great effect on growth of culture as a nutritional factor. Especially low nitrate has a significant, negative effect on growth and phycoerythrin concentration (Conitz et al 2001). When phosphate concentration increased from 0 to 0.15 mM, the final dry cell density of transgenic gametophytes also increased, but this leveled off from 0.15 to 0.3 mM (Fig.…”

Section: Comparison Of Growth Curve In the Bubble-column Bioreactor Amentioning

confidence: 91%

Microprojectile bombardment of Laminaria japonica gametophytes and rapid propagation of transgenic lines within a bubble-column bioreactor

Deng

Qin

Zhang

et al. 2009

Plant Cell Tiss Organ Cult

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A human acidic fibroblast growth factor gene, hafgf, was successfully transferred into Laminaria japonica (kelp) gametophytes via microprojectile bombardment using the biolistic PDS-1000/He gene gun. Following phosphinothricin screening, PCR detection and Southern blot analysis, transgenic L. japonica gametophytes were cultivated in an illuminated bubble-column bioreactor to optimize growth conditions. A maximal final dry cell density of 1,695 mg l -1 was obtained in a batch culture having an initial dry cell density of 129.75 mg l -1 . This was achieved using an aeration rate of 1.08 l air min -1 l -1 culture in a medium containing 1.5 mM inorganic nitrate and 0.15 mM phosphate. In addition, the relationship between different nitrogen sources and growth of transgenic gametophytes indicated that both urea and sodium nitrate were effective nitrogen sources for cell growth, while ammonium ions inhibited growth of these gametophytes.

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Section: Comparison Of Growth Curve In the Bubble-column Bioreactor Amentioning

confidence: 91%

Microprojectile bombardment of Laminaria japonica gametophytes and rapid propagation of transgenic lines within a bubble-column bioreactor

Deng

Qin

Zhang

et al. 2009

Plant Cell Tiss Organ Cult

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“…Regulation of protein accumulation and AA composition is important for improving laver product quality. The contents of protein and TAAs were significantly influenced by DIN (nitrate and ammonium) and N:P. It has been testified that the levels of DIN are closely related to the growth and metabolism of laver based on laboratory experiments [18][19][20][21]. If not used immediately for growth, N can be sequestered as photosynthetic pigments, amino acids, proteins, etc.…”

Section: The Influence Of Din and Dip On The Contents Of Nutritional ...mentioning

confidence: 99%

“…The quality of laver, in terms of the composition of nutrients (proteins, amino acids (AAs), free amino acids (FAAs), minerals and trace elements, flavor [the ratio of delicious amino acids (DAAs) to total amino acids (TAAs)], thickness, color (pigment composition), etc., may differ among species [12], strains [13], harvesting times [7,14], culture areas [15], between the male and female parts of a blade [16], and between the periodically drying and non-drying culture systems [17]. It has been testified that the levels of dissolved inorganic nitrogen (DIN) and phosphorus (DIP) are closely related to the growth and metabolism of laver based on laboratory experiments [18][19][20][21][22]. Addition of N or P may have different effects on the nutrient components in N. yezoensis [22].…”

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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“…Photosynthesis of the small blades of Py. torta was maximal at 30 psu salinity, 12°C and over 160 μmol m −2 s −1 photon fluence rate (Conitz et al 2001). Photosynthesis and respiration rates were investigated for freeliving conchocelis cultures (Lin et al 2008).…”

Section: Pyropia Farming In Alaskamentioning

confidence: 99%

“…Photosynthesis and respiration rates were investigated for freeliving conchocelis cultures (Lin et al 2008). A multifactored experiment showed the importance of nitrogen in the growth of juvenile blades (Conitz et al 2001). Several Pyropia species were exposed to various combinations of irradiance, photoperiod and temperature in an effort to define conditions that would reliably induce conchospore maturation and release (Lindstrom et al 2008).…”

Section: Pyropia Farming In Alaskamentioning

confidence: 99%

Opportunities, challenges and future directions of open-water seaweed aquaculture in the United States

2019

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Seaweed aquaculture is a relatively young industry in the United States compared to Asian countries. Early attempts at seaweed aquaculture in California, Washington State, New York and the Gulf of Maine in the 1980s and 1990s did not result in commercial production but provided important lessons. Since 2010, commercial cultivation of kelp (Saccharina latissima, Laminaria digitata, and Alaria esculenta) and other seaweeds (Palmaria palmata and Porphyra umbilicalis) began in the Gulf of Maine and Long Island Sound. Seaweed aquaculture is now a fast-growing maritime industry, especially in New England. If seaweed aquaculture is to maintain its momentum, it is important to (1) emphasise the environmental benefits; (2) domesticate a variety of local species; and (3) diversify seaweed products for food, animal feed, phycocolloids, cosmeceuticals, nutraceuticals, and ultimately biofuels if it becomes economically viable due to the cost of production. The exclusive economic zone (EEZ) of the United States offers opportunities for expansion of seaweed aquaculture in an area greater than the entire land mass of the United States and with limited user conflicts. This study reviews the past and current status of seaweed aquaculture in the United States and discusses potential opportunities and challenges of open-water seaweed aquaculture.

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Untitled

Cited by 20 publications

References 33 publications

Microprojectile bombardment of Laminaria japonica gametophytes and rapid propagation of transgenic lines within a bubble-column bioreactor

Microprojectile bombardment of Laminaria japonica gametophytes and rapid propagation of transgenic lines within a bubble-column bioreactor

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

Opportunities, challenges and future directions of open-water seaweed aquaculture in the United States

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