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Growth and carrageenan quality of sporophyte and gametophyte of the commercially important red seaweed Kappaphycus alvarezii

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Associated URL
philjournalsci.dost.gov.ph
Date
2022
Author
Luhan, Maria Rovilla
Mateo, Jonalyn
Sollesta-Pitogo, Hananiah
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106
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Abstract
One dilemma facing the farming of the carrageenophyte Kappaphycus is the deteriorating quality of seedstock. Rejuvenating the commercial stocks using spores from reproductive wild parents that are sexually and asexually produced could perhaps restore the traits that are useful for culture. The use of gametophyte and sporophyte (=tetrasporophyte) phases of Kappaphycus alvarezii from spores is explored as a source of seedstock. The growth and physical properties of semi-refined carrageenan extracted from the resulting sporophyte and gametophyte thalli of the same ages were determined. The growth rate of the diploid tetrasporophyte thalli was significantly higher than that of the haploid gametophyte. Gel strength and yield of semi-refined carrageenan from the two life cycle phases were not significantly different, whereas the viscosity was significantly higher in the diploid tissues. Kappaphycus sporophytes were potentially superior to gametophytes as a source of seedstock for mariculture, but problems need to be addressed – including improving the growth rate and reducing the cost of production – before its application could be realized.
Keywords
carrageenan quality gametophyte growth Kappaphycus sporophyte tetrasporophyte
URI
http://hdl.handle.net/10862/6338
Suggested Citation
Luhan, M. R., Mateo, J., & Sollesta-Pitogo, H. (2022). Growth and carrageenan quality of sporophyte and gametophyte of the commercially important red seaweed Kappaphycus alvarezii. Philippine Journal of Science, 151(S1), 129-134.
Subject
carrageenans ASFA; sporophytes ASFA; gametophytes ASFA; seaweeds ASFA; seaweed culture ASFA; Kappaphycus alvarezii AGROVOC; Guiuan TGN; Tigbauan TGN
Taxonomic term
Kappaphycus alvarezii GBIF
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  • AQD Journal Articles [1178]

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