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Variation in morphology and PSII photosynthetic characteristics of Macrocystis pyrifera during development from gametophyte to juvenile sporophyte
Dong Xu1; Naihao Ye1; Shaona Cao2; Yitao Wang2; Dongsheng Wang2; Xiao Fan1; Xiaowen Zhang1; Meiling An3; Shanli Mou1; Yuze Mao1
2015
Source PublicationAQUACULTURE RESEARCH
ISSN1355-557X
Volume46Issue:7Pages:1699-1706
AbstractCurrently, 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 60 days 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 (Fv/Fm) 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 Fv/Fm 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.
KeywordPhotosynthesis Macrocystis Pyrifera Morphology Sporophyte Light Gametophyte
DOI10.1111/are.12327
Indexed BySCI
Language英语
WOS Research AreaFisheries
WOS SubjectFisheries
WOS IDWOS:000356068400017
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Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Corresponding AuthorYuze Mao
Affiliation1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
2.Qingdao Agr Univ, Coll Marine Sci & Engn, Qingdao 266109, Peoples R China
3.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Bioact Subst, Qingdao 266061, Peoples R China
Recommended Citation
GB/T 7714
Dong Xu,Naihao Ye,Shaona Cao,et al. Variation in morphology and PSII photosynthetic characteristics of Macrocystis pyrifera during development from gametophyte to juvenile sporophyte[J]. AQUACULTURE RESEARCH,2015,46(7):1699-1706.
APA Dong Xu.,Naihao Ye.,Shaona Cao.,Yitao Wang.,Dongsheng Wang.,...&Yuze Mao.(2015).Variation in morphology and PSII photosynthetic characteristics of Macrocystis pyrifera during development from gametophyte to juvenile sporophyte.AQUACULTURE RESEARCH,46(7),1699-1706.
MLA Dong Xu,et al."Variation in morphology and PSII photosynthetic characteristics of Macrocystis pyrifera during development from gametophyte to juvenile sporophyte".AQUACULTURE RESEARCH 46.7(2015):1699-1706.
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