尚德荣¹,
宁劲松¹,
赵艳芳^1,,,
翟毓秀¹,
李风铃¹,
盛晓风¹,
丁海燕¹,
徐正¹,
段德麟²,
周永东³
1. 中国水产科学研究院黄海水产研究所 国家水产品质量监督检验中心 农业部水产品质量安全检测与评价重点实验室, 青岛 266071;
2. 中国科学院海洋研究所, 青岛 266071;
3. 江苏盐城海瑞食品有限公司, 大丰 224100

作者简介: 尚德荣(1960-),女,高级工程师,研究方向为水产品质量安全与检测技术,E-mail:shangdr@ysfri.ac.cn.

通讯作者: 赵艳芳,zhaoyf@ysfri.ac.cn ;

基金项目: 农产品质量安全监管专项经费(2011)；中华人民共和国农业行业标(10167)；南极海洋生物资源开发利用项目(21301352015103)；江苏省科技项目(BE2015335
CX(13)3095)


中图分类号: X171.5

The Subcellular Fate of Phosphorus and Calcium in the Seaweed Porphyra yezoensis and Its Relationship with the Arsenic Accumulation

Shang Derong¹,
Ning Jinsong¹,
Zhao Yanfang^1,,,
Zhai Yuxiu¹,
Li Fengling¹,
Sheng Xiaofeng¹,
Ding Haiyan¹,
Xu Zheng¹,
Duan Delin²,
Zhou Yongdong³
1. Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, National Center for Quality Supervision and Test of Aquatic Products, Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture, Qingdao 266071, China;
2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
3. Yancheng Hairui Food Co. Ltd, Dafeng 224100, China

Corresponding author: Zhao Yanfang,zhaoyf@ysfri.ac.cn ;

CLC number: X171.5

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摘要:研究条斑紫菜中磷和钙的亚细胞分布,并探讨其与条斑紫菜富集砷的关系。结果表明:条斑紫菜吸收磷、钙主要分布在细胞壁组分中,平均占总磷含量的53.9%,占总钙含量的61.25%,其次为细胞液。与对照组相比(砷暴露浓度0.5 mg·L^-1),在添加磷浓度为0.1 mg·L^-1和1.0 mg·L^-1处理组中,条斑紫菜中磷、砷之间呈现协同效应;当添加磷浓度为5.0 mg·L^-1和10.0 mg·L^-1时,条斑紫菜中磷、砷之间则呈现拮抗作用,砷的富集量分别比照组下降61.37%和72.73%。经添加钙液暴露过的条斑紫菜,当钙暴露浓度为1 000 mg·L^-1时其对砷的富集量比对照组减少15.51%。可知,5.0 mg·L^-1磷处理条斑紫菜,条斑紫菜对砷的富集受到明显的抑制。
关键词: 砷/
磷/
钙/
条斑紫菜/
亚细胞定位/
富集

Abstract:The subcellular distribution of phosphorus (P) and calcium (Ca) in P. yezoensis was studied and the relationship with its high accumulation of arsenic was also discussed. The results showed that P and Ca were mainly accumulated in the cell wall, accounting for about 53.9% of total P and about 61.25% of total Ca. The second largest accumulation of P and Ca was in the cytoplasm. Compared with the control group (only treated with 0.5 mg·L^-1 As), the synergistic effect occurred in the uptake of P and As for groups also exposed to 0.1 and 1.0 mg·L^-1 P, while the antagonistic effect occurred for 5.0 and 10.0 mg·L^-1 P pretreatment groups, and the accumulated As decreased by 61.37% and 72.37% respectively. For the group exposed to Ca (1 000 mg·L^-1), the accumulated As concentration decreased by 15.51% compared to the control group. It could be concluded that 5.0 mg·L^-1 P could significantly inhibit the accumulation of As in P. yezoensis.
Key words:arsenic/
phosphorus/
calcium/
Porphyra yezoensi/
subcellular localization/
accumulation.