Regulatory roles of serotonin and melatonin in abiotic stress tolerance in plants

Kaur, Harmeet; Bhatla, Satish C.; Baluška, Frantǐsek

doi:10.1080/15592324.2015.1049788

Cited by 115 publications

(73 citation statements)

References 79 publications

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“…A significant increase of the fresh weights of shoots and roots and significantly longer roots of 4-week-old plantlets after PE-US (Table 4) can be linked to the affected auxin level. Moreover, the level of tryptophan is connected to the level of serotonin and melatonin (Kaur et al 2015) as both are stressrelated compounds. Increased production of glutamate can serve as a substrate for the production of γ-aminobutyrate (GABA).…”

Section: Metabolic Processes Morphological Parameters and Chlorophymentioning

confidence: 99%

Transcriptomic Response of In Vitro Potato (Solanum tuberosum L.) to Piezoelectric Ultrasound

et al. 2020

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As part of a wider project to assess the impact of ultrasound on in vitro plant growth, this paper aimed to determine whether the application of piezoelectric ultrasound (PE-US) would induce changes to the transcriptome of in vitro potato (Solanum tuberosum L.). After exposing explants (single-node segments with a single leaf) to PE-US (35 kHz; 70 W) for 20 min, the effect of this stressor was determined at 0 h, 24 h, 48 h, 1 week, and 4 weeks to assess the possible immediate and residual effects of PE-US on the potato transcriptome. After mRNA was isolated, bioinformatic processing and analysis of RNA-seq datasets, KEGG analysis revealed that 24% of up-regulated biological processes were a response to stress immediately after the application of PE-US (reducing to 11% and 9% at 48 h and 4 weeks, respectively). After assessing a total of 40,430 genes for expression intensity at these five time intervals, it was found that 138, 72, 18, 5, and 59 differentially expressed genes (DEGs), respectively, were significantly up-regulated, while 6, 82, 96, 172, and 107 DEGs, respectively, were down-regulated. DEGs coding for universal stress protein, chitinase, catalase, zinc finger proteins, 21 transcription factors, glutathione S-transferase, and 17 heat shock proteins, mainly Hsp70, Hsp20, and Hsp90 proteins, and possibly the first of such discovery in US-based plant stress research, was detected. Following the validation of RNA-seq data by RT-qPCR, between SeqMonk LFC and RT-qPCR LFC, the Spearman and Pearson correlation coefficients were 0.86 and 0.90, respectively. Plantlets exposed to PE-US had significantly shorter shoots but significantly longer roots as well as higher shoot and root fresh weight, while chl b and total chl were significantly lower but the chl a/b ratio was significantly higher in plantlets exposed to PE-US. PE-US thus constituted an acute abiotic stress, but by 4 weeks, in vitro potato plantlets managed to mitigate the stress through the production of antioxidant enzyme systems and other functional metabolic changes.Key Message Piezoelectric ultrasound (PE-US) constitutes a nonfatal abiotic stress to in vitro potato. A notable discovery was the expression of 17 heat shock proteins in response to this abiotic stress.Electronic supplementary material The online version of this article (https://doi.

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Section: Metabolic Processes Morphological Parameters and Chlorophymentioning

confidence: 99%

Transcriptomic Response of In Vitro Potato (Solanum tuberosum L.) to Piezoelectric Ultrasound

et al. 2020

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“…Melatonin modulates auxin action in cell elongation through its biosynthesis from tryptophan which is also the precursor for the biosynthesis of indole-3-acetic acid. Melatonin is also capable of scavenging reactive oxygen species (ROS) accumulated in the cells in response to stress [23]. It has been reported to increase the activities of various ROS scavenging enzymes [24].…”

Section: N-nitrosomelatonin-probable Competitor Of S-nitrosothiols Fomentioning

confidence: 99%

Does N-Nitrosomelatonin Compete with S-Nitrosothiols as a Long Distance Nitric Oxide Carrier in Plants?

Kaur¹,

Yadav²,

Bhatla³

2016

Biochem Anal Biochem

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“…On one hand, melatonin stimulates the activities of antioxidant enzymes to detoxify reactive oxygen/nitrogen species. Serotonin and melatonin induce growth and antioxidant capacity of plants, providing beneficial for stress acclimatization (Kaur et al 2015). On the other hand, melatonin suppresses the toxic hydroxyl radical formation to reduce oxidative stress by chelating transition metals (Reiter et al 2016).…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Crosstalk between melatonin and nitric oxide in plant development and stress responses

2020

Physiologia Plantarum

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Melatonin is widely involved in plant growth and stress responses as a master regulator. Melatonin treatment alters the levels of endogenous nitric oxide (NO) and NO affects endogenous melatonin content. Melatonin and NO may induce various plant physiological behavior through interaction mechanism. However, the interactions between melatonin and NO in plants are largely unknown. The review presented the metabolism of endogenous melatonin and NO and their relationship in plants. The interactions between melatonin and NO in plant growth and development and responses to environmental stress were summarized. The molecular mechanisms of interaction between melatonin and NO in plants were also proposed.

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Regulatory roles of serotonin and melatonin in abiotic stress tolerance in plants

Cited by 115 publications

References 79 publications

Transcriptomic Response of In Vitro Potato (Solanum tuberosum L.) to Piezoelectric Ultrasound

Transcriptomic Response of In Vitro Potato (Solanum tuberosum L.) to Piezoelectric Ultrasound

Does N-Nitrosomelatonin Compete with S-Nitrosothiols as a Long Distance Nitric Oxide Carrier in Plants?

Crosstalk between melatonin and nitric oxide in plant development and stress responses

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