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Factors Affecting the Mixotrophic Flagellate Poterioochromonas malhamensis Grazing on Chlorella Cells
Wei, Chaojun1,2,3; Wang, Hongxia1,2,3; Ma, Mingyang1,2,3,4; Hu, Qiang1,2,3,5,6,7; Gong, Yingchun1,2,3
2019-11-19
Source PublicationJOURNAL OF EUKARYOTIC MICROBIOLOGY
ISSN1066-5234
Issue1Pages:13
Abstract

Grazing behaviour between protozoa and phytoplankton exists widely in planktonic ecosystems. Poterioochromonas malhamensis is a well-known and widespread mixotrophic flagellate, which is recognized to play an important role within marine and freshwater planktonic ecosystems and regarded as the greatest contamination threat for mass algal cultures of Chlorella. In this study, a comprehensive range of factors, including morphological characters, biochemical compositions, and specific growth rate of ten species or strains of Chlorella, were evaluated for their effect on the feeding ability of P. malhamensis, which was assessed by two parameters: the clearance rate of P. malhamensis on Chlorella spp. and the specific growth rate of P. malhamensis. The results showed that the clearance rate of P. malhamensis was negatively correlated with cell wall thickness and specific growth rate of Chlorella spp., while the specific growth rate of P. malhamensis was positively correlated with carbohydrate percentage and C/N ratio and negatively correlated with protein, lipid percentage, and nitrogen mass. In conclusion, the factors influencing feeding selectivity include not only the morphological character and chemical composition of Chlorella, but also its population dynamics. Our study provides useful insights into the key factors that affect the feeding selectivity of P. malhamensis and provides basic and constructive data to help in screening for grazing-resistant microalgae.

KeywordC N cell wall thickness feeding selectivity predation
DOI10.1111/jeu.12770
Indexed BySCI
Language英语
WOS Research AreaMicrobiology
WOS SubjectMicrobiology
WOS IDWOS:000497114000001
WOS KeywordPREY SIZE SELECTION ; FOOD QUALITY ; FEEDING CHARACTERISTICS ; GROWTH ; PHYTOPLANKTON ; MICROALGAE ; DYNAMICS ; RATES ; MICROZOOPLANKTON ; PREDATION
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/35403
Collection藻类生物技术和生物能源研发中心_期刊论文
Corresponding AuthorGong, Yingchun
Affiliation1.Chinese Acad Sci, Ctr Microalgal Biotechnol & Biofuels, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Shandong, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Hubei, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
6.SDIC Biotech Investment Co LTD, SDIC Microalgae Biotechnol Ctr, Beijing 065200, Peoples R China
7.Beijing Key Lab Algae Biomass, Beijing 100142, Peoples R China
Recommended Citation
GB/T 7714
Wei, Chaojun,Wang, Hongxia,Ma, Mingyang,et al. Factors Affecting the Mixotrophic Flagellate Poterioochromonas malhamensis Grazing on Chlorella Cells[J]. JOURNAL OF EUKARYOTIC MICROBIOLOGY,2019(1):13.
APA Wei, Chaojun,Wang, Hongxia,Ma, Mingyang,Hu, Qiang,&Gong, Yingchun.(2019).Factors Affecting the Mixotrophic Flagellate Poterioochromonas malhamensis Grazing on Chlorella Cells.JOURNAL OF EUKARYOTIC MICROBIOLOGY(1),13.
MLA Wei, Chaojun,et al."Factors Affecting the Mixotrophic Flagellate Poterioochromonas malhamensis Grazing on Chlorella Cells".JOURNAL OF EUKARYOTIC MICROBIOLOGY .1(2019):13.
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