The Effect of Variable Light Source and Light Intensity on the Growth of Three Algal Species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F22%3A00557082" target="_blank" >RIV/61388971:_____/22:00557082 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2073-4409/11/8/1293" target="_blank" >https://www.mdpi.com/2073-4409/11/8/1293</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/cells11081293" target="_blank" >10.3390/cells11081293</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Effect of Variable Light Source and Light Intensity on the Growth of Three Algal Species

Popis výsledku v původním jazyce

Light is the essential energy source for autotrophically growing organisms, including microalgae. Both light intensity and light quality affect cell growth and biomass composition. Here we used three green algae-Chlamydomonas reinhardtii, Desmodesmus quadricauda, and Parachlorella kessleri-to study the effects of different light intensities and light spectra on their growth. Cultures were grown at three different light intensities (100, 250, and 500 mu mol m(-2) s(-1)) and three different light sources: fluorescent lamps, RGB LEDs, and white LEDs. Cultures of Desmodesmus quadricauda and Parachlorella kessleri were saturated at 250 mu mol m(-2) s(-1), and further increasing the light intensity did not improve their growth. Chlamydomonas reinhardtii cultures did not reach saturation under the conditions used. All species usually divide into more than two daughter cells by a mechanism called multiple fission. Increasing light intensity resulted in an increase in maximum cell size and division into more daughter cells. In Parachlorella kessleri cells, the concentration of photosynthetic pigments decreased with light intensity. Different light sources had no effect on algal growth or photosynthetic pigments. The results show a species-specific response of algae to light intensity and support the use of any white light source for their cultivation without negative effects on growth.

Název v anglickém jazyce

The Effect of Variable Light Source and Light Intensity on the Growth of Three Algal Species

Popis výsledku anglicky

Light is the essential energy source for autotrophically growing organisms, including microalgae. Both light intensity and light quality affect cell growth and biomass composition. Here we used three green algae-Chlamydomonas reinhardtii, Desmodesmus quadricauda, and Parachlorella kessleri-to study the effects of different light intensities and light spectra on their growth. Cultures were grown at three different light intensities (100, 250, and 500 mu mol m(-2) s(-1)) and three different light sources: fluorescent lamps, RGB LEDs, and white LEDs. Cultures of Desmodesmus quadricauda and Parachlorella kessleri were saturated at 250 mu mol m(-2) s(-1), and further increasing the light intensity did not improve their growth. Chlamydomonas reinhardtii cultures did not reach saturation under the conditions used. All species usually divide into more than two daughter cells by a mechanism called multiple fission. Increasing light intensity resulted in an increase in maximum cell size and division into more daughter cells. In Parachlorella kessleri cells, the concentration of photosynthetic pigments decreased with light intensity. Different light sources had no effect on algal growth or photosynthetic pigments. The results show a species-specific response of algae to light intensity and support the use of any white light source for their cultivation without negative effects on growth.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10601 - Cell biology

Projekt

<a href="/cs/project/GA19-12607S" target="_blank" >GA19-12607S: Růst a buněčný cyklus – regulace vstupu do buněčného cyklu a výstupu z něj</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Cells

ISSN

2073-4409

e-ISSN

2073-4409

Svazek periodika

11

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

16

Strana od-do

1293

Kód UT WoS článku

000786870100001

EID výsledku v databázi Scopus

2-s2.0-85128166604