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Pregled bibliografske jedinice broj: 1193902

The effects of high temperatures and nitrogen availability on the growth and composition of the marine diatom Chaetoceros pseudocurvisetus


Flanjak, Lana; Vrana, Ivna; Cvitešić Kušan, Ana; Godrijan, Jelena; Novak, Tihana; Penezić, Abra; Gašparović, Blaženka
The effects of high temperatures and nitrogen availability on the growth and composition of the marine diatom Chaetoceros pseudocurvisetus // Journal of experimental botany (2022) doi:10.1093/jxb/erac145 (znanstveni, online first)


CROSBI ID: 1193902 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
The effects of high temperatures and nitrogen availability on the growth and composition of the marine diatom Chaetoceros pseudocurvisetus

Autori
Flanjak, Lana ; Vrana, Ivna ; Cvitešić Kušan, Ana ; Godrijan, Jelena ; Novak, Tihana ; Penezić, Abra ; Gašparović, Blaženka

Vrsta, podvrsta
Radovi u časopisima, znanstveni

Izvornik
Journal of experimental botany (2022)

Status rada
Online first

Ključne riječi
Global warming, nitrogen stress, diatom Chaetoceros pseudocurvisetus, physiological response, biochemical response, lipid remodeling

Sažetak
The assimilation of inorganic nutrients by phytoplankton strongly depends on environmental conditions such as the availability of nitrogen (N) and temperature, especially warming. The acclimation or adaptation of different species to such changes remains poorly understood. Here, we used a multimethod approach to study the viability, and physiological and biochemical responses of the marine diatom Chaetoceros pseudocurvisetus to different temperatures (15, 25, and 30 °C) and different N: phosphorus (P) ratios (N-excess (N:P = 50:1), optimal (N:P = 16:1), and N-limiting (N:P = 2:1)). N limitation had a greater effect than high temperature on cell growth and reproduction, leading to a marked elongation of setae, decreased P assimilation, increased lipid accumulation and decreased protein synthesis. The elongation of setae observed under these conditions may serve to increase the surface area available for the uptake of inorganic and/or organic nitrogen. In contrast, high temperatures (30 °C) had a stronger effect than N deficiency on cell death, N assimilation, chlorophyll a accumulation, the cessation of setae formation and cell lipid remodelling. Significant changes in thylakoid lipids were observed in cells maintained at 30 °C, with increased levels of digalactosyldiacylglycerols (DGDG) and sulfoquinovosyldiacylglycerols (SQDG). These changes may be explained by the role of galactolipids in thylakoid membrane stabilization during heat stress.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti



POVEZANOST RADA


Projekti:
HRZZ-IP-2018-01-3105 - Biokemijski odgovori površinskog sloja oligotrofnog područja Jadranskog mora na atmosfersko taloženje (BiREADI) (Frka Milosavljević, Sanja, HRZZ - 2018-01) ( POIROT)
IP-2013-11-8607 - Utjecaj okolišnog stresa na pojavnost i međudjelovanje biološki važnih organskih molekula i mikronutrijenata u morskom ekosustavu (AMBIOMERES) (Gašparović, Blaženka, HRZZ - 2013-11) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Poveznice na cjeloviti tekst rada:

doi academic.oup.com

Citiraj ovu publikaciju:

Flanjak, Lana; Vrana, Ivna; Cvitešić Kušan, Ana; Godrijan, Jelena; Novak, Tihana; Penezić, Abra; Gašparović, Blaženka
The effects of high temperatures and nitrogen availability on the growth and composition of the marine diatom Chaetoceros pseudocurvisetus // Journal of experimental botany (2022) doi:10.1093/jxb/erac145 (znanstveni, online first)
Flanjak, L., Vrana, I., Cvitešić Kušan, A., Godrijan, J., Novak, T., Penezić, A. & Gašparović, B. (2022) The effects of high temperatures and nitrogen availability on the growth and composition of the marine diatom Chaetoceros pseudocurvisetus. Prihvaćen za objavljivanje u Journal of experimental botany. [Preprint] doi:10.1093/jxb/erac145.
@unknown{unknown, author = {Flanjak, Lana and Vrana, Ivna and Cvite\v{s}i\'{c} Ku\v{s}an, Ana and Godrijan, Jelena and Novak, Tihana and Penezi\'{c}, Abra and Ga\v{s}parovi\'{c}, Bla\v{z}enka}, year = {2022}, DOI = {10.1093/jxb/erac145}, keywords = {Global warming, nitrogen stress, diatom Chaetoceros pseudocurvisetus, physiological response, biochemical response, lipid remodeling}, journal = {Journal of experimental botany}, doi = {10.1093/jxb/erac145}, title = {The effects of high temperatures and nitrogen availability on the growth and composition of the marine diatom Chaetoceros pseudocurvisetus}, keyword = {Global warming, nitrogen stress, diatom Chaetoceros pseudocurvisetus, physiological response, biochemical response, lipid remodeling} }
@unknown{unknown, author = {Flanjak, Lana and Vrana, Ivna and Cvite\v{s}i\'{c} Ku\v{s}an, Ana and Godrijan, Jelena and Novak, Tihana and Penezi\'{c}, Abra and Ga\v{s}parovi\'{c}, Bla\v{z}enka}, year = {2022}, DOI = {10.1093/jxb/erac145}, keywords = {Global warming, nitrogen stress, diatom Chaetoceros pseudocurvisetus, physiological response, biochemical response, lipid remodeling}, journal = {Journal of experimental botany}, doi = {10.1093/jxb/erac145}, title = {The effects of high temperatures and nitrogen availability on the growth and composition of the marine diatom Chaetoceros pseudocurvisetus}, keyword = {Global warming, nitrogen stress, diatom Chaetoceros pseudocurvisetus, physiological response, biochemical response, lipid remodeling} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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