Journal
AQUACULTURE RESEARCH
Volume 46, Issue 7, Pages 1699-1706Publisher
WILEY
DOI: 10.1111/are.12327
Keywords
Macrocystis pyrifera; morphology; light; photosynthesis; gametophyte; sporophyte
Categories
Funding
- Special Scientific Research Funds for Central Non-profit Institutes
- Yellow Sea Fisheries Research Institutes [20603022012004]
- Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Fisheries Research Institute [201213]
- Shandong Science and Technology plan project [2011GHY11528]
- Hi-Tech Research and Development Program (863) of China [2012AA052103]
- National Natural Science Foundation of China [41176153, 31200187]
- Qingdao Municipal Science and Technology plan project [12-6-1-3-hy]
Ask authors/readers for more resources
Currently, there is increasing demand for brown kelp, especially Macrocystis spp., to support the development of the abalone industry and for use as raw material for the production of alginate. Thus, there is a need to supplement the naturally available kelp biomass with the development of mariculture techniques. In this study, we investigated whether it was possible to cultivate Macrocystis pyrifera sporophytes in the laboratory using gametophyte clones. We propagated gametophytes by periodic fragmentation and then mixed aseptically an equal number of male and female gametophytes to induce fertilization. Approximately 60days after fertilization, numerous embryonic sporophytes emerged on the seed fibre. By using chlorophyll fluorescence technology, we investigated variation in the photosystem II (PSII) characteristics of M. pyrifera during development from the gametophyte to juvenile sporophyte stage. During this growth period, both the optimal (F-v/F-m) and effective (YII) PSII quantum yields increased significantly from the haploid gametophyte to diploid sporophyte stages. In addition, by comparing female gametophytes with male gametophytes, we found that female gametophytes were not only larger and more pigmented than the males, but also recorded higher values of F-v/F-m and YII. Our results supplemented information on the life cycle and PSII photosynthetic performance during the early development and confirmed the possibility of artificial seeding technology, both of which may contribute to mariculture of M. pyrifera in China in the near future.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available