Growth and photosynthetic performance of Nostoc linckia (formerly N. calcicola) cells grown in BG11 and BG11 0 media.

Autor: Touloupakis E; Istituto di Ricerca sugli Ecosistemi Terrestri, CNR, Via Madonna del Piano, 10 Sesto Fiorentino, 50019, Florence, Italy., Zittelli GC; Istituto per la Bioeconomia, CNR, Via Madonna del Piano 10 Sesto Fiorentino, 50019, Florence, Italy., Benavides AMS; Centro de Investigación en Ciencias Del Mar y Limnologίa, Universidad de Costa Rica, San Pedro, San José, 2060, Costa Rica.; Escuela de Biologia, Universidad de Costa Rica, San Pedro, San José, 2060, Costa Rica., Torzillo G; Istituto per la Bioeconomia, CNR, Via Madonna del Piano 10 Sesto Fiorentino, 50019, Florence, Italy. giuseppe.torzillo@cnr.it.; Centro de Investigación en Ciencias Del Mar y Limnologίa, Universidad de Costa Rica, San Pedro, San José, 2060, Costa Rica. giuseppe.torzillo@cnr.it.
Jazyk: angličtina
Zdroj: Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology [Photochem Photobiol Sci] 2023 Apr; Vol. 22 (4), pp. 795-807. Date of Electronic Publication: 2022 Dec 23.
DOI: 10.1007/s43630-022-00353-6
Abstrakt: The biotechnological potential of Nostoc linckia as a biofertilizer and source of bioactive compounds makes it important to study its growth physiology and productivity. Since nitrogen is a fundamental component of N. linckia biomass, we compared the growth and biochemical composition of cultures grown in BG11 (i.e., in the presence of nitrate) and BG11 0 (in the absence of nitrate). Cultures grown in BG11 accumulated more cell biomass reaching a dry weight of 1.65 ± 0.06 g L -1 , compared to 0.92 ± 0.01 g L -1 in BG11 0 after 240 h of culture. Biomass productivity was higher in culture grown in BG11 medium (average 317 ± 38 mg L -1  day -1 ) compared to that attained in BG11 0 (average 262 ± 37 mg L -1  day -1 ). The chlorophyll content of cells grown in BG11 increased continuously up to (39.0 ± 1.3 mg L -1 ), while in BG11 0 it increased much more slowly (13.6 ± 0.8 mg L -1 ). Biomass grown in BG11 had higher protein and phycobilin contents. However, despite the differences in biochemical composition and pigment concentration, between BG11 and BG11 0 cultures, both their net photosynthetic rates and maximum quantum yields of the photosystem II resulted in similar.
(© 2022. The Author(s).)
Databáze: MEDLINE
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