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Distinct features of C/N balance regulation in Prochlorococcus sp. strain MIT9313.
- Source :
-
FEMS microbiology letters [FEMS Microbiol Lett] 2018 Feb 01; Vol. 365 (3). - Publication Year :
- 2018
-
Abstract
- The abundance and significant contribution to global primary production of the marine cyanobacterium Prochlorococcus have made it one of the main models in marine ecology. Several conditions known to cause strong effects on the regulation of N-related enzymes in other cyanobacteria lacked such effect in Prochlorococcus. Prochlorococcus sp. strain MIT9313 is one of the most early-branching strains among the members of this genus. In order to further understand the C/N control system in this cyanobacterium, we studied the effect of the absence of three key elements in the ocean, namely N, P and Fe, as well as the effect of inhibitors of the N assimilation or photosynthesis on the N metabolism of this strain. Furthermore, we focused our work in the effect of ageing, as the age of cultures has clear effects on the regulation of some enzymes in Prochlorococcus. To reach this goal, expression of the main three regulators involved in N assimilation in cyanobacteria, namely ntcA, glnB and pipX, as well as that of icd (encoding for isocitrate dehydrogenase) were analysed. Our results show that the control of the main proteins involved in the C/N balance in strain MIT9313 differs from other model Prochlorococcus strains.<br /> (© FEMS 2017. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Subjects :
- Bacterial Proteins genetics
Gene Expression Profiling
Gene Expression Regulation, Bacterial
Iron metabolism
Iron Deficiencies
Nitrogen deficiency
Phosphorus deficiency
Phosphorus metabolism
Photosynthesis genetics
Prochlorococcus genetics
Prochlorococcus growth & development
Species Specificity
Carbon metabolism
Nitrogen metabolism
Prochlorococcus metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1574-6968
- Volume :
- 365
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- FEMS microbiology letters
- Publication Type :
- Academic Journal
- Accession number :
- 29267883
- Full Text :
- https://doi.org/10.1093/femsle/fnx278