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Shifting nutrient-mediated interactions between algae and bacteria in a microcosm: Evidence from alkaline phosphatase assay
Liu, Huali2; Zhou, Yiyong1; Xiao, Wenjuan1,3; Ji, Lei1,3; Cao, Xiuyun1; Song, Chunlei1; Song, CL (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China.
2012
Source PublicationMICROBIOLOGICAL RESEARCH
ISSN0944-5013
Volume167Issue:5Pages:292-298
AbstractThe impacts of different nutrient additions (N + P, N + P + C, 4N + P, 4N + P + C, N + 2P) on the growth of algae and bacteria were studied in a microcosm experiment. Since alkaline phosphatase activity (APA) provides an indication of phosphorus deficiency, the higher value for algal APA in the treatments with excess nitrogen and for bacterial APA in the treatments with excess carbon suggested that, algal and bacterial phosphorus-limited status were induced by abundant nitrogen and carbon input, respectively. Bacterial phosphorus-limited status was weakened due to higher bacterial competition for phosphorus. compared to algae. In comparison with the bacterial and specific bacterial APA, higher values of algal and specific algal APA were found, which showed a gradual increase that coincided with the increase of chlorophyll a concentration. This fact indicated not only a stronger phosphorus demand by algae than by bacteria, but also a complementary relationship for phosphorus demand between algae and bacteria. However, this commensalism could be interfered by glucose input resulting in the decline of chlorophyll a concentration. Furthermore, the correlation between bacterial numbers and chlorophyll a concentration was positive in treatments without carbon and blurry in treatments with carbon. These observations validate a hypothesis that carbon addition can stimulate bacterial growth justifying bacterial nutrient demand, which decreases the availability of nutrients to algae and affects nutrient relationship between algae and bacteria. However, this interference would terminate after algal and bacterial adaption to carbon input. (C) 2011 Elsevier GmbH. All rights reserved.; The impacts of different nutrient additions (N + P, N + P + C, 4N + P, 4N + P + C, N + 2P) on the growth of algae and bacteria were studied in a microcosm experiment. Since alkaline phosphatase activity (APA) provides an indication of phosphorus deficiency, the higher value for algal APA in the treatments with excess nitrogen and for bacterial APA in the treatments with excess carbon suggested that, algal and bacterial phosphorus-limited status were induced by abundant nitrogen and carbon input, respectively. Bacterial phosphorus-limited status was weakened due to higher bacterial competition for phosphorus. compared to algae. In comparison with the bacterial and specific bacterial APA, higher values of algal and specific algal APA were found, which showed a gradual increase that coincided with the increase of chlorophyll a concentration. This fact indicated not only a stronger phosphorus demand by algae than by bacteria, but also a complementary relationship for phosphorus demand between algae and bacteria. However, this commensalism could be interfered by glucose input resulting in the decline of chlorophyll a concentration. Furthermore, the correlation between bacterial numbers and chlorophyll a concentration was positive in treatments without carbon and blurry in treatments with carbon. These observations validate a hypothesis that carbon addition can stimulate bacterial growth justifying bacterial nutrient demand, which decreases the availability of nutrients to algae and affects nutrient relationship between algae and bacteria. However, this interference would terminate after algal and bacterial adaption to carbon input. (C) 2011 Elsevier GmbH. All rights reserved.
SubtypeArticle
KeywordAlgae Bacteria Nutrient Alkaline Phosphatase Activity Microcosm
Department[Zhou, Yiyong; Xiao, Wenjuan; Ji, Lei; Cao, Xiuyun; Song, Chunlei] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Liu, Huali] Wuhan Univ Sci & Engn, Wuhan 430073, Peoples R China; [Xiao, Wenjuan; Ji, Lei] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
DOI10.1016/j.micres.2011.10.005
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Key Basic Research and Development Program of China[2008CB418006]; National Science Foundation of China[40903030]; International Foundation for Science (IFS)[A/4529-1]; Chinese Academy of Sciences; [2012ZX07103-004] ; National Key Basic Research and Development Program of China[2008CB418006]; National Science Foundation of China[40903030]; International Foundation for Science (IFS)[A/4529-1]; Chinese Academy of Sciences; [2012ZX07103-004] ; National Key Basic Research and Development Program of China[2008CB418006]; National Science Foundation of China[40903030]; International Foundation for Science (IFS)[A/4529-1]; Chinese Academy of Sciences; [2012ZX07103-004] ; National Key Basic Research and Development Program of China[2008CB418006]; National Science Foundation of China[40903030]; International Foundation for Science (IFS)[A/4529-1]; Chinese Academy of Sciences; [2012ZX07103-004]
Indexed BySCI
Language英语
WOS Research AreaMicrobiology
WOS SubjectMicrobiology
WOS IDWOS:000304430100005
WOS KeywordINORGANIC NUTRIENTS ; MICROBIAL LOOP ; PHYTOPLANKTON ; PHOSPHORUS ; BACTERIOPLANKTON ; STOICHIOMETRY ; COMPETITION ; ECOSYSTEM
Funding OrganizationNational Key Basic Research and Development Program of China[2008CB418006]; National Science Foundation of China[40903030]; International Foundation for Science (IFS)[A/4529-1]; Chinese Academy of Sciences; [2012ZX07103-004] ; National Key Basic Research and Development Program of China[2008CB418006]; National Science Foundation of China[40903030]; International Foundation for Science (IFS)[A/4529-1]; Chinese Academy of Sciences; [2012ZX07103-004] ; National Key Basic Research and Development Program of China[2008CB418006]; National Science Foundation of China[40903030]; International Foundation for Science (IFS)[A/4529-1]; Chinese Academy of Sciences; [2012ZX07103-004] ; National Key Basic Research and Development Program of China[2008CB418006]; National Science Foundation of China[40903030]; International Foundation for Science (IFS)[A/4529-1]; Chinese Academy of Sciences; [2012ZX07103-004]
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16981
Collection水环境工程研究中心_期刊论文
Corresponding AuthorSong, CL (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Wuhan Univ Sci & Engn, Wuhan 430073, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu, Huali,Zhou, Yiyong,Xiao, Wenjuan,et al. Shifting nutrient-mediated interactions between algae and bacteria in a microcosm: Evidence from alkaline phosphatase assay[J]. MICROBIOLOGICAL RESEARCH,2012,167(5):292-298.
APA Liu, Huali.,Zhou, Yiyong.,Xiao, Wenjuan.,Ji, Lei.,Cao, Xiuyun.,...&Song, CL .(2012).Shifting nutrient-mediated interactions between algae and bacteria in a microcosm: Evidence from alkaline phosphatase assay.MICROBIOLOGICAL RESEARCH,167(5),292-298.
MLA Liu, Huali,et al."Shifting nutrient-mediated interactions between algae and bacteria in a microcosm: Evidence from alkaline phosphatase assay".MICROBIOLOGICAL RESEARCH 167.5(2012):292-298.
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