中国海洋大学学报（自然科学版）2026，Vol.56Issue(10)：25-35,11.DOI:10.16441/j.cnki.hdxb.20250222
羊栖菜雌、雄生殖器官附生菌多样性与代谢调控差异研究
Diversity and Metabolic Regulation of Epiphytic Bacteria on Male and Female Reproductive Organs of Sargassum fusiforme
摘要
Abstract
To explore the differential characteristics of epiphytic bacteria in female and male organs of Sargassum fusiforme,this study analyzed community diversity and metabolic function differences of the epiphytic bacteria on the reproductive receptacles and gas vesicles of Sargassum fusiforme by using 16 S rRNA high-throughput sequencing technology.The results showed that there were significant differ-ences in the epiphytic bacteria between male and female reproductive organs of Sargassum fusiforme.In terms of community diversity,the α diversity of the epiphytic bacteria on the female reproductive recep-tacles was higher than that on the male ones.β diversity analysis indicated that gender was the main fac-tor driving the structural differentiation of the epiphytic bacteria on the reproductive receptacles.Re-garding community composition,Proteobacteria and Planctomycetota were the dominant bacterial phyla in the reproductive organs of Sargassum fusiforme.The relative abundance of Planctomycetota was higher in the epiphytic bacteria of the female reproductive receptacles and gas vesicles,while Proteobac-teria dominated in the epiphytic bacteria of the male reproductive receptacles and gas vesicles.At the ge-nus level,the dominant epiphytic bacterial genera on the female reproductive receptacles were Hellea,Vibrio,and Blastopirellula,while male reproductive receptacles and gas vesicles were primarily domi-nated by Granulosicoccus and Litorimonas.Metabolic pathway analysis revealed that epiphytic bacteria on female reproductive receptacles exhibited significant upregulation in pathways such as glycosamin-oglycan degradation and steroid hormone biosynthesis.In contrast,epiphytic bacteria on male recepta-cles showed enrichment in carotenoid biosynthesis and oxidative phosphorylation pathways.Compared to male gas vesicles,epiphytic bacteria of the female gas vesicles significantly upregulated pathways in-cluding β-lactam resistance,glycosaminoglycan degradation,and sphingolipid metabolism.关键词
羊栖菜/生殖器官/附生菌/16S rRNA/群落结构/代谢通路Key words
Sargassum fusiforme/reproductive organ/epiphytic bacteria/16S rRNA/community structure/metabolic pathway分类
海洋科学引用本文复制引用
张明政,刘晓慧,郭甜心,迟雯丹,吕梦晨,刘乾,吴海一..羊栖菜雌、雄生殖器官附生菌多样性与代谢调控差异研究[J].中国海洋大学学报（自然科学版）,2026,56(10):25-35,11.基金项目
山东省藻类产业技术体系项目(SDAIT26) （SDAIT26）
自然资源部部省合作项目(2024ZRBSHZ099) （2024ZRBSHZ099）
山东省海洋科学研究院科研补助经费课题项目(2024SDMSRI041 5,2024SDMSRI0401)资助Supported by the Agricultural Industrial Technology System in Shandong Province Project(SDAIT26) （2024SDMSRI041 5,2024SDMSRI0401）
the Ministry of Natural Re-sources Provincial Cooperation Projects(2024ZRBSHZ099) （2024ZRBSHZ099）
the Research and Development Project of Marine Science Research Insti-tute of Shandong Province(2024SDMSRI0415,2024SDMSRI0401) （2024SDMSRI0415,2024SDMSRI0401）
