Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae)
Endemic Antarctic macroalgae are especially adapted to live in extreme Antarctic conditions. Their potential biogeographic distribution niche is primarily controlled by the photoperiodic regime and seawater temperatures, since these parameters regulate growth, reproduction, and survival during the e...
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ftconicet:oai:ri.conicet.gov.ar:11336/203968 2023-10-09T21:47:09+02:00 Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae) Matula, Carolina Veronica Quartino, Maria Liliana Nuñez, Jesus Dario Zacher, Katharina Bartsch, Inka application/pdf http://hdl.handle.net/11336/203968 eng eng Springer info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1007/s00300-021-02991-5 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-021-02991-5 http://hdl.handle.net/11336/203968 Matula, Carolina Veronica; Quartino, Maria Liliana; Nuñez, Jesus Dario; Zacher, Katharina; Bartsch, Inka; Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae); Springer; Polar Biology; 45; 4; 8-2-2022; 559-572 0722-4060 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ Algal growth Life history stage Polar macroalgae Survival temperature Physiological response https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00300-021-02991-5 2023-09-24T19:42:37Z Endemic Antarctic macroalgae are especially adapted to live in extreme Antarctic conditions. Their potential biogeographic distribution niche is primarily controlled by the photoperiodic regime and seawater temperatures, since these parameters regulate growth, reproduction, and survival during the entire life cycle. Here we analyzed the upper survival temperature (UST) of juvenile sporophytes and the temperature range for sporophyte formation from gametophytes of Desmarestia menziesii, one of the dominant endemic Antarctic brown algal species. This process is a missing link to better evaluate the full biogeographical niche of this species. Two laboratory experiments were conducted. First, growth and maximum quantum yield of juvenile sporophytes were analyzed under a temperature gradient (0, 5, 10, 12, 13, 14, 15, and 16 °C) in a 16:8 h light:dark (LD) regime (Antarctic spring condition) for 2 weeks. Second, the formation of sporophytes from gametophytes (as a proxy of gametophyte reproduction) was evaluated during a 7 weeks period under a temperature gradient (0, 4, 8, 12, and 16 °C), and two different photoperiods: 6:18 h LD regime simulating winter conditions and a light regime simulating the Antarctic shift from winter to spring by gradually increasing the light period from 7.5:16.5 h LD (late winter) to 18.5:5.5 h LD (late spring). Sporophytes of D. menziesii were able to grow and survive up to 14 °C for 2 weeks without visible signs of morphological damage. Thus, this species shows the highest UST of all endemic Antarctic Desmarestiales species. In turn, gametophyte reproduction solely took place at 0 °C but not at 4–8 °C. The number of emerging sporophytes was six times higher under the light regime simulating the transition from winter to spring than under constant short day winter conditions. There was a negative relationship between the number of sporophytes formed and the gametophyte density at the beginning of the experiment, which provides evidence that gametophyte density exerts some control upon ... Article in Journal/Newspaper Antarc* Antarctic Polar Biology CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Polar Biology 45 4 559 572 |
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Open Polar |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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ftconicet |
language |
English |
topic |
Algal growth Life history stage Polar macroalgae Survival temperature Physiological response https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
Algal growth Life history stage Polar macroalgae Survival temperature Physiological response https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Matula, Carolina Veronica Quartino, Maria Liliana Nuñez, Jesus Dario Zacher, Katharina Bartsch, Inka Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae) |
topic_facet |
Algal growth Life history stage Polar macroalgae Survival temperature Physiological response https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Endemic Antarctic macroalgae are especially adapted to live in extreme Antarctic conditions. Their potential biogeographic distribution niche is primarily controlled by the photoperiodic regime and seawater temperatures, since these parameters regulate growth, reproduction, and survival during the entire life cycle. Here we analyzed the upper survival temperature (UST) of juvenile sporophytes and the temperature range for sporophyte formation from gametophytes of Desmarestia menziesii, one of the dominant endemic Antarctic brown algal species. This process is a missing link to better evaluate the full biogeographical niche of this species. Two laboratory experiments were conducted. First, growth and maximum quantum yield of juvenile sporophytes were analyzed under a temperature gradient (0, 5, 10, 12, 13, 14, 15, and 16 °C) in a 16:8 h light:dark (LD) regime (Antarctic spring condition) for 2 weeks. Second, the formation of sporophytes from gametophytes (as a proxy of gametophyte reproduction) was evaluated during a 7 weeks period under a temperature gradient (0, 4, 8, 12, and 16 °C), and two different photoperiods: 6:18 h LD regime simulating winter conditions and a light regime simulating the Antarctic shift from winter to spring by gradually increasing the light period from 7.5:16.5 h LD (late winter) to 18.5:5.5 h LD (late spring). Sporophytes of D. menziesii were able to grow and survive up to 14 °C for 2 weeks without visible signs of morphological damage. Thus, this species shows the highest UST of all endemic Antarctic Desmarestiales species. In turn, gametophyte reproduction solely took place at 0 °C but not at 4–8 °C. The number of emerging sporophytes was six times higher under the light regime simulating the transition from winter to spring than under constant short day winter conditions. There was a negative relationship between the number of sporophytes formed and the gametophyte density at the beginning of the experiment, which provides evidence that gametophyte density exerts some control upon ... |
format |
Article in Journal/Newspaper |
author |
Matula, Carolina Veronica Quartino, Maria Liliana Nuñez, Jesus Dario Zacher, Katharina Bartsch, Inka |
author_facet |
Matula, Carolina Veronica Quartino, Maria Liliana Nuñez, Jesus Dario Zacher, Katharina Bartsch, Inka |
author_sort |
Matula, Carolina Veronica |
title |
Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae) |
title_short |
Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae) |
title_full |
Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae) |
title_fullStr |
Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae) |
title_full_unstemmed |
Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae) |
title_sort |
effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic antarctic brown alga desmarestia menziesii (phaeophyceae) |
publisher |
Springer |
url |
http://hdl.handle.net/11336/203968 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Polar Biology |
genre_facet |
Antarc* Antarctic Polar Biology |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1007/s00300-021-02991-5 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-021-02991-5 http://hdl.handle.net/11336/203968 Matula, Carolina Veronica; Quartino, Maria Liliana; Nuñez, Jesus Dario; Zacher, Katharina; Bartsch, Inka; Effects of seawater temperature and seasonal irradiance on growth, reproduction, and survival of the endemic Antarctic brown alga Desmarestia menziesii (Phaeophyceae); Springer; Polar Biology; 45; 4; 8-2-2022; 559-572 0722-4060 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-021-02991-5 |
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Polar Biology |
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45 |
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1779309959805140992 |