Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Picocyanobacteria Community and Cyanophage Infection Responses to Nutrient Enrichment in a Mesocosms Experiment in Oligotrophic Waters |
| Συγγραφείς: |
Alexandra Coello-Camba, Ruben Diaz-Rua, Carlos M. Duarte, Xabier Irigoien, John K. Pearman, Intikhab S. Alam, Susana Agusti |
| Πηγή: |
Frontiers in Microbiology, Vol 11 (2020) |
| Στοιχεία εκδότη: |
Frontiers Media S.A., 2020. |
| Έτος έκδοσης: |
2020 |
| Συλλογή: |
LCC:Microbiology |
| Θεματικοί όροι: |
Synechococcus, bloom, metagenomics, clade, cyanophages, Microbiology, QR1-502 |
| Περιγραφή: |
Prochlorococcus and Synechococcus are pico-sized cyanobacteria that play a fundamental role in oceanic primary production, being particularly important in warm, nutrient-poor waters. Their potential response to nutrient enrichment is expected to be contrasting and to differ from larger phytoplankton species. Here, we used a metagenomic approach to characterize the responses to nutrient enrichment in the community of picocyanobacteria and to analyze the cyanophage response during a mesocosms experiment in the oligotrophic Red Sea. Natural picoplankton community was dominated by Synechococcus clade II, with marginal presence of Prochlorococcus (0.3% bacterial reads). Increased nutrient input triggered a fast Synechococcus bloom, with clade II being the dominant, with no response of Prochlorococcus growth. The largest bloom developed in the mesocosms receiving a single initial input of nutrients, instead of daily additions. The relative abundances of cyanophage sequences in cellular metagenomes increased during the experiment from 12.6% of total virus reads up to 40% in the treatment with the largest Synechococcus bloom. The subsequent collapse of the bloom pointed to a cyanophage infection on Synechococcus that reduced its competitive capacity, and was then followed by a diatom bloom. The cyanophage attack appears to have preferentially affected the most abundant Synechococcus clade II, increasing the evenness within the host population. Our results highlight the relevance of host-phage interactions on determining population dynamics and diversity of Synechococcus populations. |
| Τύπος εγγράφου: |
article |
| Περιγραφή αρχείου: |
electronic resource |
| Γλώσσα: |
English |
| ISSN: |
1664-302X |
| Relation: |
https://www.frontiersin.org/article/10.3389/fmicb.2020.01153/full; https://doaj.org/toc/1664-302X |
| DOI: |
10.3389/fmicb.2020.01153 |
| Σύνδεσμος πρόσβασης: |
https://doaj.org/article/47cdf239d39d473fa7792f73c607056f |
| Αριθμός Καταχώρησης: |
edsdoj.47cdf239d39d473fa7792f73c607056f |
| Βάση Δεδομένων: |
Directory of Open Access Journals |