EC Microbiology

Catecholamines-dopamine, noradrenaline and adrenaline found in unicellular plant organisms such as diatom algae Ulnaria ulna can regulate the cell amount in the population. The compounds were oxidized on the air oxygen to toxic red aminochromes and then via chain reaction to black pigments melanins that decreased the cell population. The most primitive single-cellular organisms like diatoms exhibit a marked sensitivity to the neurotransmitters and the blockers of animal adrenoreceptors, indicating a possible reception mechanism similar to that observed in mammals.

Keywords: Adrenaline; Agonists; Antagonists; Biogenic Amines; Diatoms; Dopamine; Luminescence Microscopy; Microspectrofluorimetry; Noradrenaline

1. Roshchina V “New Tendency and Perspectives in Evolutionary Considerations of Neurotransmitters in Microbial, Plant, and Animal Cells”. Advances in Experimental Medicine and Biology 874 (2016): 25-27.
2. Van Alstyne KL., et al. “Dopamine functions as an antiherbivore defense in the temperate green algae Ulnaria obscura”. Oecologia2 (2006): 304-311.
3. Van Alstyn KL., et al. “Neurotransmitters in marine and freshwater algae”. In: Neurotransmitters in Plants: Perspectives and Applications. (Eds. A. Ramakrishna and V.V. Roshchina). Boca Raton: CRC Press (2019): 35-54.
4. Roshchina V “Possible role of biogenic amines in plant-animal relations”. In: Neurotransmitters in Plants: Perspectives and Applications. (Eds. A. Ramakrishna and V.V. Roshchina). Boca Raton: CRC Press (2019): 281-289.
5. Roshchina V, et al. “Allelopathy experiments with Chara algae model. Histochemical analysis of the participation of neurotransmitter systems in water inhabitation”. Allelopathy Journal 46.1 (2019): 17-24.
6. Oleskin AV., et al. “Impact of Biogenic Amines on the Growth of a Chlorella vulgaris Culture”. Journal of Pharmacy and Nutrition Sciences1 (2021): 49-53.
7. Oleskin AV and Postnov A.L. “Neurotransmitters as communicative agents in aquatic ecosystems”. Moscow University Biological Sciences Bulletin 1 (2022): 6-12.
8. Roshchina VV., et al. “Fluorescence in the Study of Diatom Ulnaria ulna Cells”. Austin Environmental Sciences3 (2022): 107-110.
9. Roshchina VV. “Reactions of Diatom Ulnaria Ulna on Neurotransmitters and Their Antagonists”. Austin Environmental Sciences. 8.1 (2023): 1092-1094.
10. Roshchina V “Test for the Cholinesterase Activity in Diatoms Ulnaria ulna Cells”. EC Microbiology 18.7 (2022): 34-38.
11. Roshchina VV. “Neurotransmitters in Plant Life”. Enfield, New Hampshire, Plymouth: Science Publisher, 283 (2001).