溶解态磷在海洋微藻碱性磷酸酶活力变化中的调控作用

黄邦钦; 黄世玉; 翁妍; 洪华生

溶解态磷在海洋微藻碱性磷酸酶活力变化中的调控作用

1.
国家教委海洋生态环境开放研究实验室, 厦门大学环境科学研究中心, 厦门 361005
2.
集美大学水产学院养殖环境系, 集美 361021

基金项目: 国家自然科学基金资助项目(编号:49206063)

计量
- 文章访问数: 914
- HTML全文浏览量: 5
- PDF下载量: 860
- 被引次数: 0
出版历程
- 收稿日期: 1997-01-27
- 修回日期: 1998-08-27

Effect of dissolved phosphorus on alkaline phosphatase activity in marine microalgae

1.
Research Laboratory of SEDC on Marine Ecological Environment/Environmental Science Research Center, Xiamen University, Xiamen 361005
2.
Fishers College, Jimei University, Jimei 361021

摘要

摘要: 在实验室批量培养条件下,测定了海洋微藻培养体系中碱性磷酸酶活力(APA)和各形态溶解磷的动态变化,分析了二者之间的关系.结果表明,在批量培养过程中,APA的动态变化呈"S"形曲线,各形态溶解磷在其变化过程中所起的调控作用不同,介质中溶解无机磷和小分子溶解有机磷的浓度是激发APA发生变化的主要调控因子,大分子溶解有机磷的浓度对APA的作用不明显,但APA的增大可加速微藻利用大分子溶解有机磷的速率.微藻的种类和丰度不影响APA的动态变化形式及其调控机理.
- 海洋微藻 /
- 碱性磷酸酶活力 /
- 溶解有机磷 /
- 溶解无机磷 /
- 丰度
Abstract: It was thought that phosphorus limited the primary productivity in lake while nitrogen in ocean, but recent studies showed that phosphorus limited the phytoplankton growth in the specific coastal waters, results also indicated that phytoplattkton could utilize dissolved organic phosphorus(DOP)and alkaline phosphatase(AP)played an important role in the utilization of DOP. However, the variation and controlling mechanism of AP are stiV poorly understood. The present study focused on the effects of different species of dissolved phosphorus on the variation of AP in algal batch culture. The results showed that variation of alkaline phosphatase activity (APA) was closed to "S" curve, different species of dissolved phosphorus had different effects on APA. The concentrations of dissolved inorganic phosphorus and small molecular dissolved organic phosphorus had a significant effect on APA, while the concentration of large molecular dissolved organic phosphorus (LDOP) has little effect on APA, but the increasing of APA could accelerate the decomposing of LDOP in the medium. Results also showed that algae species and abundance had little effect on APA.
- Alkaline phosphatase activity /
- phosphorus /
- microalgae /

HTML全文

参考文献(15)

胡明辉,杨逸萍,Harrision P J.长江口浮游植物生长的磷酸盐限制.海洋学报,1989, 11(4):439-443

Suttle C X, Harrision P J. Ammonium and phosphate uptake rate, N P supply ratios and evidence for N and P limitation in some oligotrophic lake, Lirnnol. Oceaongr.,1988, 33(2):186-202

lstvanovics Vera, Petterson Kurt, Pierson Don et al. Evaluation of phosphorus deficiency indicators for summer phytoplankton in Lake Erken. Limnol. Oceanogr.,1992, 37(4):890-900

黄邦钦,洪华生.几种藻类吸收磷酸盐动力学的初步研究.厦门大学学报(自然版),1994, 33(增刊):7-11

黄邦钦,王海黎,洪华生等.厦门海域浮游植物和细菌对溶解有机磷的利用研究.厦门大学学报(自然版),1996, 35(4):625-630

Contcr Jr JB, Wetzer R U. Uptake of dissolved inorganic and organic phosphorus compounds by phytoplankton and bacterio-plankton. Limnol. Oceanogr.,1992, 37(2):232-243

洪华生,戴汉民,郑郊成.海水中碱性磷酸醉活力的测定及其在磷循环中的作用初探.海洋与湖沼,1992, 23(4):415-420

王海黎,洪华生,黄邦钦.海洋环境中溶解有机磷的生物活性初探.厦门大学学报(自然版),1995, 34(3):415-420

Van Boekel W H M. Ability of Phaeocyties sp. to grow on organic phosphorus:direct measurement and prediction with the use of an inhibition constant. J. Plankton Res.,1991,(13):959-970

杨逸萍,宋端星,胡明辉.河口悬浮物与海洋近岸表层沉积物中磷的海洋浮游植物生物侧定.厦门大学学报(自然版),1996, 35(4):574-579

Waiser M J, Robarts R D. Microbial nutrient limitation in prairie saline lakes with high sulfate concentration. Limnol. Oceanogr.,1995, 40(3):566-574

Smith R E H, Kalff J. The effect of phosphorus limitation on algal growth rate:evidence from alkaline phosphatase. Can.J. Fish. Aquat. Sci.,1981,38, 1421-1427

Kuenzler E J, Perms J P. Phosphatase of marine algae. Biol. Bull. (Woods Hole. Mass.),1965, (128):277-284

Healey F P, Hendzel L L. Effect of phosphorus diffiency on two algae growing in chemostats. J. Phycol. 1975,(11):303-309

Vrba J, Vvhnalek V, Heizlar J et al. Comparison of phosphorus deficiency indices during a spring phytoplankton bloom in a eutrophic reservoir. Freshwater Biol.,1995, 33(1):73-81

施引文献

资源附件(0)

访问统计