This preprint is under consideration at Marine Biology. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
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Research Article
Liu Chunying
Ocean University of China - Laoshan Campus: Ocean University of China
Corresponding Author
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Nitric oxide (NO) is a non-traditional regulator for the growth of plant and phytoplankton. This study monitored the growth of five marine phytoplankton species, namely, Platymonas helgolandica var. tsingtaoensis, Platymonas subcordiformis, Skeletonema costatum, Gymnodinium sp., and Prorocentrum donghaiense, and examined the parameters of the carbonate system in the culture media after adding different concentrations of NO and sodium nitroprusside (SNP, NO donor) solutions. The different concentrations of exogenous NO had various roles in the growth of these microalgae. The two food algae,namely, P. helgolandica var. tsingtaoensis, P. subcordiformis, and three red tide algae, namely S. costatum, Gymnodinium sp., and P. donghaiense showed different responses to the same NO concentration. The red tide algae were more sensitive to exogenous NO than the food algae. NO with the concentration of 1.4 × 10− 6 mol L− 1 had the optimum stimulatory effect on the growth of the microalgae, the cell density increased by 9.8 ~ 38.3%. SNP solution with the concentration of 100 µmol L− 1 inhibited the growth of the two food algae, the cell density decreased by 38.8 ~ 84.3%. Meanwhile, 10 µmol L− 1 SNP solution additions to the three red tide algae declined the cell density by 95.3 ~ 99.9%. Low concentrations of SNP (0.1 µmol L− 1 for the two food algae and 0.01 µmol L− 1 for the red tide algae) promoted the growth of microalgae slightly. Different concentrations of exogenous NO could also influence parameters of the carbonate system in the culture media. NO participates in the regulation of marine microalgae photosynthesis, which may influence the parameters of carbonate system.
Keywords
Marine microalgae, Nitric oxide (NO), Growth, Carbonate system, Dual role, Photosynthesis
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This preprint is under consideration at Marine Biology. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Liu Chunying
Ocean University of China - Laoshan Campus: Ocean University of China
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 20 May, 2021
No community comments so far
Reviews received
Received 17 May, 2021
Reviewers invited
Invitations sent on 17 May, 2021
Editor assigned
On 12 May, 2021
First submitted
On 12 May, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Nitric oxide (NO) is a non-traditional regulator for the growth of plant and phytoplankton. This study monitored the growth of five marine phytoplankton species, namely, Platymonas helgolandica var. tsingtaoensis, Platymonas subcordiformis, Skeletonema costatum, Gymnodinium sp., and Prorocentrum donghaiense, and examined the parameters of the carbonate system in the culture media after adding different concentrations of NO and sodium nitroprusside (SNP, NO donor) solutions. The different concentrations of exogenous NO had various roles in the growth of these microalgae. The two food algae,namely, P. helgolandica var. tsingtaoensis, P. subcordiformis, and three red tide algae, namely S. costatum, Gymnodinium sp., and P. donghaiense showed different responses to the same NO concentration. The red tide algae were more sensitive to exogenous NO than the food algae. NO with the concentration of 1.4 × 10− 6 mol L− 1 had the optimum stimulatory effect on the growth of the microalgae, the cell density increased by 9.8 ~ 38.3%. SNP solution with the concentration of 100 µmol L− 1 inhibited the growth of the two food algae, the cell density decreased by 38.8 ~ 84.3%. Meanwhile, 10 µmol L− 1 SNP solution additions to the three red tide algae declined the cell density by 95.3 ~ 99.9%. Low concentrations of SNP (0.1 µmol L− 1 for the two food algae and 0.01 µmol L− 1 for the red tide algae) promoted the growth of microalgae slightly. Different concentrations of exogenous NO could also influence parameters of the carbonate system in the culture media. NO participates in the regulation of marine microalgae photosynthesis, which may influence the parameters of carbonate system.
Figure 1
Figure 2
Figure 3
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