Abstract
Study on the early development of sporelings from carpospores ofGracilaria asiatica Chang et Xia was conducted indoors under controlled culture conditions. Besides normal development of sporelings, a new developmental phenomenon of filamentous frond was observed. It was composed of one or two rows of cells, and took place from the outmost brim of the basal disc. During the early disc stage of germinated carpospores, one or two filamentous fronds formed on about 10% basal discs. Simultaneously, young fronds began to arch slightly from the centers of single and coalescent discs; lately more filamentous fronds up to 80% appeared on the brims of basal discs. Meanwhile one or more upright fronds protuberated on the basal discs. Generally, filamentous fronds exhibited in self-existence or co-existence forms with normal young sporelings on the same basal disc, and single cell detached from filamentous fronds developed into a new filamentous frond. This new phenomenon exhibited a unique differentiation pathway during the early development ofG. asiatica, which would be potential for the application in artificial sporelings nursery.
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References
Chang, C. F. and B. M. Xia, 1976. Studies on Chinese species inGracilaria.Studia Mar. Sinica. 11: 91–163.
Chen, M. Q. and G. Z. Ren, 1985. The development process of sporelings ofGracilaria verrucosa (Hudson) Papen-fuss.Oceanologia et Limnologia Sinica 16(3): 181–187. (in Chinese with English abstract)
Chen, M. Q. and G. Z. Ren, 1987. The effect of temperature on the early growth and development of sporelings ofGracilaria asiatica Zhang and Xia.Oceanologia et Limnologia Sinica 18(3): 301–308. (in Chinese with English abstract)
Cheney, D. P., E. Mar and N. Soga, 1986. Protoplast isolation and cell division in the agar-producing seaweedGracilaria (Rhodophyta).J. Phycol. 22: 238–243.
Chu, J. S., W. S. Liu and Z. Y. Zhang, 1998. A preliminary study on the isolation and cultivation of protoplasts fromGracilaria verrucosa.Marine Science Bulletin 17(6): 17–19. (in Chinese with English abstract).
Fan, Y., 2000. Induction of callus-like tissue from creeping tissue ofGracilaria lemaniformis (Rhodophyta) and mechanism analysis.Oceanologia et Limnologia Sinica 31(1): 29–34. (in Chinese with English abstract).
Guimarães, M., E. M. Plastino and E. C. Oliveira, 1999. Life history, reproduction and growth ofGracilaria domingensis (Gracilariales, Rhodophyta) from Brazil.Botanica Marina 42: 481–486.
Harper, J. L., 1985. Modules, branches and the capture of resources.In Jachson J. B. C., Buss, L. W. and Cook, R. C. [eds.] Population Biology and Evolution of Clonal Organisms. Yale University Press, New Haven, Connecticut, pp. 1–33.
He, J., 2004. Planting technology ofGracilaria.Shandong Fisheries 21(4): 13–14. (in Chinese)
Jones, W. E., 1956. Effect of spore coalescence in the early development ofGracilaria verrucosa (Hudson) Papenfuss.Nature 178: 426–427.
Kain, J. M. and C. Destombe, 1995. A review of the life history, reproduction and phenonogy ofGracilaria.J. Appl. Phycol. 7: 269–281.
Komiyama, T. and M. Sasamoto, 1957. Studies on the propagation ofGracilaria verrucosa (Hudson) Papenfuss I. On the settling of the spores and development of the early stage.Report of the Investigations on the Ariake Sea 4: 25–34.
Lima, M., T. Kinoshita and S. Kawaguchi, 1995. Cultivation ofGrateloupia acuminata (Halymeniaceae, Rhodophyta) by regeneration from cut fragments of basal crusts and upright thalli.J. Appl. Phycol. 7: 583–588.
Ogata, E., T. Marsui and H. Nakamura, 1972. The life cycle ofGracilaria verrucosa (Rhodophyceae, Gigartinales) in vitro.Phycologia 11(1): 75–80.
Oliveira, E. C. and E. M. Plastino, 1994. Gracilariaceae.In: I. Akatsuka ed.Biology of Economic Algae. SPB Academic Publishing, The Hague, pp. 185–226.
Oza, R. M., 1975. Studies on IndianGracilaria I. carpospore and tetraspore germination and early stage of development inGracilaria corticata J. Ag.Botanica Marina 18: 199–201.
Patwary, M. U. and J. P. van der Meer, 1992. Genetics and breeding of cultivated seaweeds.The Korean Journal of Phycology 7(2): 281–318.
Ren, G. Z. and M. Q. Chen, 1986. On the coalescence of phenomenon during the disc stage of young sporeling inGracilaria.Mar. Sci. 10: 49–50. (in Chinese with English abstract).
Santelices, B., J. A. Correa and M. Isabel, 1996. Sporeling coalescence and intraclonal variation inGracilaria chilensis (Gracilariales, Rhodophyta).J. Phycol. 32: 313–322.
Yan, X. H. and S. J. Wang, 1993. Regeneration of whole plant fromGracilaria asiatica Chang et Xia protoplasts (Gracilariaceae, Rhodophyta).Hydrobiologia 260/261: 429–436.
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Supported by NSFC (No. 40376049) and the Knowledge Innovation Program of Chinese Academy of Science and the Shandong Agricultural Seed Stock Breeding Project (Granted to D. L. Duan).
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Fengjuan, Z., Aihua, W., Jidong, L. et al. New phenomenon in early development of sporelings inGracilaria asiatica Chang et Xia (Gracilariaceae, Rhodophyta). Chin. J. Ocean. Limnol. 24, 364–369 (2006). https://doi.org/10.1007/BF02842851
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DOI: https://doi.org/10.1007/BF02842851