Abstract
Carpospore shedding was studied in Gracilaria cornea in order to determine maximum spore output potential for mariculture purposes. The combined effects of temperature (23, 26 and 29 °C), daylength (8:16, 12:12 and 16:8 light:dark), photon irradiance (darkness, 20 and 40 μmol m−2 s−1) and spore release method (spontaneous release, osmotic shock and drying) were tested. Maximum spore shedding in cystocarpic G. cornea occurred within the first three days depending on temperature. A reduction in spore release periodicity was more evident at 29 °C. Carpospore shedding was mainly affected by temperature and daylength. A higher number of carpospores was released per cystocarp at 26 °C than at 23 or 29 °C. Short day conditions (8:16 L:D) produced a higher number of carpospores at 26 °C, even at the lowest irradiances tested (darkness and 20 μmol m−2 s−1). A combination of 26 °G and short days (8:16) gave the highest carpospore discharge per cystocarp. There was no significant difference between the spore release methods. These results could be applied to promote the establishment of extensive cultivation of G. cornea from spores as an alternative to vegetative propagation in Yucatan coast.
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References
Alveal, K., H. Romo, C. Werlinger & E. C. Oliveira, 1997. Mass cultivation of the agar-producing alga Gracilaria chilensis (Rhodophyta) from spores. Aquaculture 148: 77–83.
Armisen, R., 1995. World-wide use and importance of Gracilaria. J. appl. Phycol. 7:231–243.
Avila, M. & M. Seguel, 1993. An overview of seaweed resources in Chile. J. appl. Phycol. 5: 133–139.
Buschmann, A. H., R. Westermeier & C. A. Retamales, 1995. Cultivation of Gracilaria on the sea-bottom in southern Chile: a review. J. appl. Phycol. 7: 291–301.
Chiang, Y.M., 1981. Cultivation of Gracilaria (Rhodophycophyta, Gigartinales) in Taiwan. Proc. int. Seaweed Symp. 10: 569–564.
Dawes, C. P., 1995. Suspended cultivation of Gracilaria in the sea. J. appl. Phycol. 7:303–313.
Destombe, C., J. Godin, M. Nocher, S. Richerd & M. Valero, 1993. Differences in response between haploid and diploid isomorphic phases of Gracilaria verrucosa (Rhodophyta: Gigartinales) exposed to artificial environmental conditions. Hydrobiologia 260/261: 131–137.
Freile-Pelegrin, Y. & D. Robledo, 1997a. Effects of season on the agar content and chemical characteristics of Gracilaria cornea from Yucatan, Mexico. Bot. mar. 40: 285–290.
Freile-Pelegrin, Y. & D. Robledo, 1997b. Influence of alkali treatment on agar from Gracilaria cornea from Yucatan, Mexico. J. appl. Phycol. 9: 533–539.
Friedlander, M. & C. J. Dawes, 1984. Studies on spore release and sporeling growth from carpospores of Gracilaria fo-liifera (Førsskäl) Børgesen var. angustissima (Harvey) Taylor. I. Growth responses. Aquatic Bot. 19: 221–232.
Glenn, E. P., D. Moore, K. Fitzimmons & C. Azevedo, 1996. Spore culture of the edible red seaweed, Gracilaria parvispora (Rhodophyta). Aquaculture 142: 59–74.
Infante, R. & A. Candia, 1988. Cultivo de Gracilaria verrucosa (Hudson) Papenfuss e Iridaea ciliata Kutzing (Rhodophyta, Gigartinaceae) en laboratorio: esporulacion inducida y colonizacion de carposporas en diferentes sustratos. Gayana Bot. 45: 297–304.
Johnson, R. A. & D. W. Wichern, 1992. Applied multivariate statistical analysis. Prentice-Hall, New Jersey, 642 pp.
Kain, J. M. & C. Destombe, 1995. A review of the life history, reproduction and phenology of Gracilaria. J. appl. Phycol. 7: 269–281.
Lefebvre, C. A., C. Destombe & J. Godin, 1987. Le fonctionnement du carposporophyte de Gracilaria verrucosa et ses repercussions sur la strategie de reproduction. Cryptogamie Algol. 8: 113–126.
Norris, J. N., 1985. Gracilaria and Polycavernosa from the Caribbean and Florida: key and list of the species of economic potential. In Abbott I. A. & Norris J. N. (eds), Taxonomy of Economic Seaweeds. University of California, California: 101–121.
Oza, R. M. & V. Krishnamurthy, 1968, Studies on carposporic rhythm of Gracilaria verrucosa (Huds.) Papenf. Bot. mar. 11: 118–121.
Rama Rao, K. & P. C. Thomas, 1974. Shedding of carpospores in Gracilaria edulis (Gmel.) Silva. Phykos 13: 54–59.
Reed, R. H., 1995. Solute accumulation and osmotic adjustment. In Cole, K. M. & R. G. Sheath (eds), Biology of the Red Algae. Cambridge University Press, New York: 147–170.
Ren, G. Z., J. C. Wang & M. Q. Cheng, 1984. Cultivation of Gracilaria by means of low rafts. Hydrobiologia 116/117: 72–76.
Santelices, B., 1990. Patterns of reproduction, dispersal and recruitment in seaweeds. Oceanogr. mar. Biol. ann. Rev. 28: 177–276.
Umamaheswara Rao, M., 1976. Spore liberation in Gracilaria corticata J. Agardh growing at Mandapam. J. exp. mar. Biol. Ecol. 21: 91–98.
Umamaheswara Rao, M. & N. Kaliaperumal, 1983. Effects of environmental factors on the liberation of spores from some red algae of Visakhapatnam coast. J. exp. mar. Biol. Ecol. 70: 45–53.
Umamaheswara Rao, M. & G. Subbarangaiah, 1981. Effects of environmental factors on the diurnal periodicity of tetraspores of some Gigartinales (Rhodophyta). Proc. int. Seaweed Symp. 10: 209–214.
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Guzmán-Urióstegui, A., Robledo, D. (1999). Factors affecting sporulation of Gracilaria cornea (Gracilariales, Rhodophyta) carposporophytes from Yucatan, Mexico. In: Kain, J.M., Brown, M.T., Lahaye, M. (eds) Sixteenth International Seaweed Symposium. Developments in Hydrobiology, vol 137. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4449-0_33
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DOI: https://doi.org/10.1007/978-94-011-4449-0_33
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