Effect of light on photosynthetic efficiency of sequestered chloroplasts in  intertidal benthic foraminifera (<i>Haynesina germanica</i> and <i>Ammonia tepida</i>)

Jauffrais, Thierry; Jesus, Bruno; Metzger, Edouard; Mouget, Jean-Luc; Jorissen, Frans; Geslin, Emmanuelle

doi:10.5194/bg-13-2715-2016

Articles | Volume 13, issue 9

https://doi.org/10.5194/bg-13-2715-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-13-2715-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 9

Research article

|

10 May 2016

Research article |

| 10 May 2016

Effect of light on photosynthetic efficiency of sequestered chloroplasts in intertidal benthic foraminifera (Haynesina germanica and Ammonia tepida)

Thierry Jauffrais, Bruno Jesus, Edouard Metzger, Jean-Luc Mouget, Frans Jorissen, and Emmanuelle Geslin

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Jun 2024	54	16	1	71
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Oct 2024	23	9	1	33
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Apr 2025	26	13	1	40
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Jun 2025	48	11	0	59
Jul 2025	23	21	2	46
Aug 2025	50	10	2	62
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Oct 2025	23	33	4	60
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Cumulative views and downloads (calculated since 18 Jan 2016)

Month	HTML	PDF	XML	Total
Jan 2016	50	13	0	63
Feb 2016	20	9	0	29
Mar 2016	25	6	0	31
Apr 2016	18	6	0	24
May 2016	72	25	4	101
Jun 2016	53	8	6	67
Jul 2016	25	6	0	31
Aug 2016	23	7	1	31
Sep 2016	25	6	0	31
Oct 2016	27	8	2	37
Nov 2016	15	1	0	16
Dec 2016	13	3	0	16
Jan 2017	27	7	0	34
Feb 2017	19	3	0	22
Mar 2017	39	8	2	49
Apr 2017	52	14	1	67
May 2017	49	7	3	59
Jun 2017	40	10	0	50
Jul 2017	31	9	1	41
Aug 2017	5	9	1	15
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Nov 2017	6	10	0	16
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Jan 2018	7	11	0	18
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Mar 2024	16	11	2	29
Apr 2024	17	14	5	36
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Jun 2024	54	16	1	71
Jul 2024	23	12	7	42
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Oct 2024	23	9	1	33
Nov 2024	14	7	1	22
Dec 2024	14	12	3	29
Jan 2025	26	8	1	35
Feb 2025	25	10	1	36
Mar 2025	13	9	1	23
Apr 2025	26	13	1	40
May 2025	20	7	0	27
Jun 2025	48	11	0	59
Jul 2025	23	21	2	46
Aug 2025	50	10	2	62
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Oct 2025	23	33	4	60
Nov 2025	21	23	10	54

Latest update: 21 Nov 2025

Short summary

Some benthic foraminifera can incorporate chloroplasts from microalgae. We investigated chloroplast functionality of two benthic foraminifera (Haynesina germanica & Ammonia tepida) exposed to different light levels. Only H. germanica was capable of using the kleptoplasts, showing net oxygen production. Chloroplast functionality time was longer in darkness (2 weeks) than at high light (1 week). Kleptoplasts are unlikely to be completely functional, thus requiring continuous chloroplast resupply.