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dc.contributor.authorXiao, Man
dc.contributor.authorHamilton, David P
dc.contributor.authorChuang, Ann
dc.contributor.authorBurford, Michele A
dc.date.accessioned2020-05-21T01:28:12Z
dc.date.available2020-05-21T01:28:12Z
dc.date.issued2020
dc.identifier.issn1574-6941
dc.identifier.doi10.1093/femsec/fiaa092
dc.identifier.urihttp://hdl.handle.net/10072/394097
dc.description.abstractSeveral cyanobacteria, including diazotrophic Raphidiopsis raciborskii, can form harmful blooms when dissolved inorganic phosphorus (DIP) concentrations are very low. We hypothesized that R. raciborskii strains would vary in P allocations to cell growth and storage, providing resilience of populations to continuously low or variable P supplies. We tested this hypothesis using six toxic strains (producing cylindrospermopsins) isolated from a field population using batch monocultures with and without P and dissolved inorganic nitrogen (DIN). Treatments replete with DIN, irrespective of P addition, had similar exponential growth rates for individual strains. P storage capacity varied four-fold among strains and was significantly higher in DIN free treatments than in replete treatments. P was stored by all R. raciborskii strains, in preference to allocation to increase growth rates. P stores decreased with increased growth rate across strains but were not related to the time to P starvation in P free treatments. The storage capacity of R. raciborskii, combined with strategies to efficiently uptake P, mean that P controls may not control R. raciborskii populations in the short-term. Intra-population strain variation in P storage capacity will need to be reflected in process-based models to predict blooms of R. raciborskii and other cyanobacteria adapted to low-P conditions.
dc.languageeng
dc.publisherOxford University Press (OUP)
dc.relation.ispartofjournalFEMS Microbiology Ecology
dc.subject.fieldofresearchBiological Sciences
dc.subject.fieldofresearchMedical and Health Sciences
dc.subject.fieldofresearchEnvironmental Sciences
dc.subject.fieldofresearchcode06
dc.subject.fieldofresearchcode11
dc.subject.fieldofresearchcode05
dc.subject.keywordsRaphidiopsis raciborskii (Cylindrospermopsis raciborskii)
dc.subject.keywordsCarbon
dc.subject.keywordscylindrospermopsins (CYNs)
dc.subject.keywordsnitrogen
dc.subject.keywordsphotosynthetic yield
dc.titleIntra-population strain variation in phosphorus storage strategies of the freshwater cyanobacterium Raphidiopsis raciborskii
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationXiao, M; Hamilton, DP; Chuang, A; Burford, MA, Intra-population strain variation in phosphorus storage strategies of the freshwater cyanobacterium Raphidiopsis raciborskii, FEMS Microbiology Ecology, 2020
dc.date.updated2020-05-21T00:26:45Z
dc.description.versionPost-print
gro.rights.copyright© 2020 Oxford University Press. This is a pre-copy-editing, author-produced PDF of an article accepted for publication in FEMS Microbiology Ecology following peer review. The definitive publisher-authenticated version Intra-population strain variation in phosphorus storage strategies of the freshwater cyanobacterium Raphidiopsis raciborskii, FEMS Microbiology Ecology, 2020 is available online at: DOI.
gro.hasfulltextFull Text
gro.griffith.authorHamilton, David P.
gro.griffith.authorBurford, Michele A.
gro.griffith.authorXiao, Man
gro.griffith.authorChuang, Ann W.


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