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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/jpy.12254
|2 doi
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|a pubmed24n0861.xml
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|a (NLM)26986260
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Ng, Wai Ho Albert
|e verfasserin
|4 aut
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| 245 |
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|a Diel variation of the cellular carbon to nitrogen ratio of Chlorella autotrophica (Chlorophyta) growing in phosphorus- and nitrogen-limited continuous cultures
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 26.07.2016
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|a Date Revised 18.03.2016
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2014 Phycological Society of America.
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|a We investigated the relationship between daily growth rates and diel variation of carbon (C) metabolism and C to nitrogen (N) ratio under P- and N-limitation in the green algae Chlorella autotrophica. To do this, continuous cultures of C. autotrophica were maintained in a cyclostat culture system under 14:10 light:dark cycle over a series of P- and N-limited growth rates. Cell abundance, together with cell size, as reflected by side scatter signal from flow cytometric analysis demonstrated a synchronized diel pattern with cell division occurring at night. Under either type of nutrient limitation, the cellular C:N ratio increased through the light period and decreased through the dark period over all growth rates, indicating a higher diel variation of C metabolism than that of N. Daily average cellular C:N ratios were higher at lower dilution rates under both types of nutrient limitation but cell enlargement was only observed at lower dilution rates under P-limitation. Carbon specific growth rates during the dark period positively correlated with cellular daily growth rates (dilution rates), with net loss of C during night at the lowest growth rates under N-limitation. Under P-limitation, dark C specific growth rates were close to zero at low dilution rates but also exhibited an increasing trend at high dilution rates. In general, diel variations of cellular C:N were low when dark C specific growth rates were high. This result indicated that the fast growing cells performed dark C assimilation at high rates, hence diminished the uncoupling of C and N metabolism at night
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Chlorella autotrophica
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|a carbon
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|a dark carbon assimilation
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| 650 |
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|a diel variation
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| 650 |
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|a elemental ratio
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| 650 |
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|a green algae
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| 650 |
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|a nitrogen
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| 650 |
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|a nutrient limitation
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|a respiration
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| 650 |
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|a stoichiometry
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| 700 |
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|a Liu, Hongbin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 51(2015), 1 vom: 12. Feb., Seite 82-92
|w (DE-627)NLM098182994
|x 1529-8817
|7 nnns
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| 773 |
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|g volume:51
|g year:2015
|g number:1
|g day:12
|g month:02
|g pages:82-92
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|u http://dx.doi.org/10.1111/jpy.12254
|3 Volltext
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