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Next generation sequencing analyses shed light on the cold adaptation mechanisms of Saposhnikovia divaricata (Turcz.) Schischk

ABSTRACT: Next generation sequencing analyses shed light on the cold adaptation mechanisms of Saposhnikovia divaricata (Turcz.) Schischk

PROVIDER: PRJNA1156701 | ENA |

REPOSITORIES: ENA

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Next generation sequencing analyses shed light on the cold adaptation mechanisms of Saposhnikovia divaricata (Turcz.) Schischk

Project description:Purpose:Next generation sequencing has been done to compare differrent transcriptome profiling between control groups and cold treated groups of Saposhnikovia divaricate (Turcz.) Schischk. Methods:Retinal mRNA profiles of 48d-old control samples (CK)and 6h/48h cold treated under 4°C were generated by deep sequencing, in triplicate, using Illumina NovaSeq 6000 Platform. Results: Using an optimized data analysis workflow, we obtained 6.1 GB of clean reads with an impressive Q30 percentage > 91.58%. We mapped about 20 million sequence reads per sample. Conclusions: Our study represents the first detailed analysis of Saposhnikovia divaricate (Turcz.) Schischk trascriptomes, with biologic replicates.

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Ecological roles of secondary metabolites of <i>Saposhnikovia divaricata</i> in adaptation to drought stress.

Project description:Saposhnikovia divaricata is a traditional Chinese herb that mainly grows in arid grasslands and strongly adapts to various stresses. Drought is not only a major abiotic stress factor but also a typical feature conducive to producing high-quality medicinal material. The present study investigated by treating S. divaricata plants with polyethylene glycol (PEG-6000). Ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) identified 146 compounds from the roots of S. divaricata, among which seven primary metabolites and 28 secondary metabolites showed significant changes after drought treatment. UV-Vis spectrophotometer detected the activity of antioxidant enzymes and the content of superoxide anion (O2 -.) and malondialdehyde (MDA). The differential primary metabolites revealed that drought promotes glycolysis, reducing primary metabolism and enhancing secondary metabolism. Meanwhile, the differential secondary metabolites showed an increase in the content of compounds upstream of the secondary metabolic pathway, and other glycosides and increased that of the corresponding aglycones. The activities of antioxidant enzymes and the content of O2 -. and MDA shown different changes duing the drought treatment. These observations indicate that drought promotes the biosynthesis and transformation of the secondary metabolites and activity of antioxidant enzymes, improving plant adaptability. The present study also analyzed a few primary and secondary metabolites of S. divaricata under different degrees and durations of drought and speculated on the metabolic pathways in an arid environment. The findings indicate the biological nature, diversity, and complexity of secondary metabolites and the mechanisms of plant adaptation to ecological stress.

| S-EPMC9639429 | biostudies-literature

Saposhnikovia divaricata-An Ethnopharmacological, Phytochemical and Pharmacological Review.

Project description:Saposhnikovia divaricata (Turcz.) Schischk., a perennial herb belonging to the family Umbelliferae, is widely distributed in Northeast Asia. Its dried root (Radix Saposhnikoviae) is used as a Chinese herbal medicine for the treatment of immune system, nervous system, and respiratory diseases. Phytochemical and pharmacological studies have shown that the main constituents of S. divaricata are chromones, coumarins, acid esters, and polyacetylenes, and these compounds exhibited significant anti-inflammatory, analgesic, antioxidant, antiproliferative, antitumor, and immunoregulatory activities. The purpose of this review is to provide comprehensive information on the botanical characterization and distribution, traditional use and ethnopharmacology, phytochemistry, and pharmacology of S. divaricata for further study concerning its mechanism of action and development of better therapeutic agents and health products from S. divaricata.

| S-EPMC7176574 | biostudies-literature

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