The effect of light quality and quantity on carbon allocation in Chromera velia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F19%3A00517928" target="_blank" >RIV/61388971:_____/19:00517928 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/19:43899731

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs12223-019-00734-y" target="_blank" >https://link.springer.com/article/10.1007%2Fs12223-019-00734-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12223-019-00734-y" target="_blank" >10.1007/s12223-019-00734-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of light quality and quantity on carbon allocation in Chromera velia

Popis výsledku v původním jazyce

Chromera velia is a marine photosynthetic relative of human apicomplexan parasites. It has been isolated from coral reefs and is indicted for being involved in symbioses with hermatypic corals. C. velia has been subject to intensive research, but still very little is known of its response to light quality and quantity. Here, we have studied the growth and compositional responses of C. velia to culture under monochromatic light (blue, green or red), at two photon flux densities (PFD, 20 and 100 mu mol photons m(-2) s(-1)). Our results show that C. velia growth rate is unaffected by the quality of light, whereas it responds to PFD. However, light quality influenced cell size, which was smaller for cells exposed to blue monochromatic light, regardless of PFD. PFD strongly influenced carbon allocation: at 20 mu mol photons m(-2) s(-1), carbon was mainly allocated into proteins while at 100 mu mol photons m(-2) s(-1), carbon was allocated mainly into carbohydrate and lipid pools. The blue light treatment caused a decrease in the lipids and carbohydrates to proteins and thus suggested to affect nitrogen metabolism in acclimated cells. Whole-cell absorption spectra revealed the existence of red-shifted chlorophyll a antenna not only under red light but in all low PFD treatments. These findings show the ability of C. velia to successfully adapt and thrive in spectrally very different environments of coral reefs.

Název v anglickém jazyce

The effect of light quality and quantity on carbon allocation in Chromera velia

Popis výsledku anglicky

Chromera velia is a marine photosynthetic relative of human apicomplexan parasites. It has been isolated from coral reefs and is indicted for being involved in symbioses with hermatypic corals. C. velia has been subject to intensive research, but still very little is known of its response to light quality and quantity. Here, we have studied the growth and compositional responses of C. velia to culture under monochromatic light (blue, green or red), at two photon flux densities (PFD, 20 and 100 mu mol photons m(-2) s(-1)). Our results show that C. velia growth rate is unaffected by the quality of light, whereas it responds to PFD. However, light quality influenced cell size, which was smaller for cells exposed to blue monochromatic light, regardless of PFD. PFD strongly influenced carbon allocation: at 20 mu mol photons m(-2) s(-1), carbon was mainly allocated into proteins while at 100 mu mol photons m(-2) s(-1), carbon was allocated mainly into carbohydrate and lipid pools. The blue light treatment caused a decrease in the lipids and carbohydrates to proteins and thus suggested to affect nitrogen metabolism in acclimated cells. Whole-cell absorption spectra revealed the existence of red-shifted chlorophyll a antenna not only under red light but in all low PFD treatments. These findings show the ability of C. velia to successfully adapt and thrive in spectrally very different environments of coral reefs.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10606 - Microbiology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Folia Microbiologica

ISSN

0015-5632

e-ISSN

—

Svazek periodika

64

Číslo periodika v rámci svazku

5 SI

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

655-662

Kód UT WoS článku

000496409500006

EID výsledku v databázi Scopus

2-s2.0-85070205177