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dc.contributor.authorXiao, M
dc.contributor.authorHamilton, DP
dc.contributor.authorChuang, A
dc.contributor.authorBurford, MA
dc.date.accessioned2020-05-21T01:28:12Z
dc.date.available2020-05-21T01:28:12Z
dc.date.issued2020
dc.identifier.issn0168-6496
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.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherOxford University Press (OUP)
dc.relation.ispartofjournalFEMS Microbiology Ecology
dc.subject.fieldofresearchEnvironmental Sciences
dc.subject.fieldofresearchBiological Sciences
dc.subject.fieldofresearchMedical and Health Sciences
dc.subject.fieldofresearchcode05
dc.subject.fieldofresearchcode06
dc.subject.fieldofresearchcode11
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.versionAccepted Manuscript (AM)
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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