Diel transcriptional response of a California Current plankton microbiome to light, low iron, and enduring viral infection

Kolody, B. C.; McCrow, J. P.; Allen, L. Zeigler; Aylward, F. O.; Fontanez, K. M.; Moustafa, A.; Moniruzzaman, M.; Chavez, F. P.; Scholin, C. A.; Allen, E. E.; Worden, A. Z.; Delong, E. F.; Allen, A. E.

doi:10.1038/s41396-019-0472-2

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Diel transcriptional response of a California Current plankton microbiome to light, low iron, and enduring viral infection

2019
By Kolody, B. C. ; McCrow, J. P. ; Allen, L. Zeigler ; ...
Source: ISME J. 2019 Nov; 13(11): 2817–2833.

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Journal Title:

ISME Journal
Personal Author:

Kolody, B. C. ; McCrow, J. P. ; Allen, L. Zeigler ; Aylward, F. O. ; Fontanez, K. M. ; ... More +

Kolody, B. C. ; McCrow, J. P. ; Allen, L. Zeigler ; Aylward, F. O. ; Fontanez, K. M. ; Moustafa, A. ; Moniruzzaman, M. ; Chavez, F. P. ; Scholin, C. A. ; Allen, E. E. ; Worden, A. Z. ; Delong, E. F. ; Allen, A. E. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research)
Description:

Phytoplankton and associated microbial communities provide organic carbon to oceanic food webs and drive ecosystem dynamics. However, capturing those dynamics is challenging. Here, an in situ, semi-Lagrangian, robotic sampler profiled pelagic microbes at 4 h intervals over ~2.6 days in North Pacific high-nutrient, low-chlorophyll waters. We report on the community structure and transcriptional dynamics of microbes in an operationally large size class (>5 μm) predominantly populated by dinoflagellates, ciliates, haptophytes, pelagophytes, diatoms, cyanobacteria (chiefly Synechococcus), prasinophytes (chiefly Ostreococcus), fungi, archaea, and proteobacteria. Apart from fungi and archaea, all groups exhibited 24-h periodicity in some transcripts, but larger portions of the transcriptome oscillated in phototrophs. Periodic photosynthesis-related transcripts exhibited a temporal cascade across the morning hours, conserved across diverse phototrophic lineages. Pronounced silica:nitrate drawdown, a high flavodoxin to ferredoxin transcript ratio, and elevated expression of other Fe-stress markers indicated Fe-limitation. Fe-stress markers peaked during a photoperiodically adaptive time window that could modulate phytoplankton response to seasonal Fe-limitation. Remarkably, we observed viruses that infect the majority of abundant taxa, often with total transcriptional activity synchronized with putative hosts. Taken together, these data reveal a microbial plankton community that is shaped by recycled production and tightly controlled by Fe-limitation and viral activity.
Keywords:

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Phytoplankton
Source:

ISME J. 2019 Nov; 13(11): 2817–2833.
DOI:

https://doi.org/10.1038/s41396-019-0472-2
Pubmed ID:

31320727
Pubmed Central ID:

PMC6794264
Document Type:

Journal Article
Funding:

Grant no. NA15OAR4320071
Place as Subject:

California
Rights Information:

CC BY
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PMC
Main Document Checksum:

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urn:sha256:6e37ef0246cab4676923ee81de1274a9a216d9d7c9be5547fdc1933407e757aa
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https://repository.library.noaa.gov/view/noaa/26323/noaa_26323_DS1.pdf
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Diel transcriptional response of a California Current plankton microbiome to light, low iron, and enduring viral infection

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