Plectranthus barbatus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA189426 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR1633977_1.fastq.gz | Fastqsanger.gz | |||
| SRR1633977_2.fastq.gz | Fastqsanger.gz |
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Project description:Plectranthus barbatus Transcriptome or Gene expression
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Project description:A new abietane diterpene namely plectrabarbene (2), together with two known compounds: sugiol (1) and 11,14-dihydroxy-8,11,13-abietatrien-7-one (3) have been isolated from the aerial parts of Plectranthus barbatus Andr. (Labiatae). The structures of these compounds were determined by various spectral techniques (e.g., UV, IR, NMR, and FAB) and by comparison with the literature data. A molecular docking study of the isolated diterpenes (1-3) was performed with AChE to gain an insight into their AChE inhibition mechanism. The results of docking experiments revealed that the all tested compounds showed binding affinity at the active site of AchE in comparison to donepezil.
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Project description:Plectranthus barbatus also known by the synonym Coleus forskohlii it is called as forskohlii and Indian coleus. It is a tropical perennial herb belongs to the family Lamiaceae widely cultivated in India used as traditional medicinal crop. Its tuberous roots produce forskolin, an extract useful for pharmaceutical preparations and research in cell biology. The incidence of mosaic with dark and light green patches, mottling, leaf distortion and reduction growth was noticed in commercial cultivation of coleus. For identification of the virus, the infected leaf sample extract was mechanically inoculated to different hosts such as chilli, tobacco, tomato, cucumber, cowpea and Chenopodium amaranticolor. Host range studies revealed that the virus showed severe mosaic symptoms on Nicotiana spp. and Cucumis spp. The virus produced systemic and local lesion symptoms in a different host. The Leaf dip preparation of virus infected leaf extract was observed under an electron microscope showed the presence of isometric particles of 28 nm in size. The healthy and infected samples were tested using DAC-ELISA against antibodies of CMV, GBNV and TSV the infected samples showed strong positive reaction with 1.85 optical density to CMV antibodies indicated the presence of CMV. For molecular identification, total RNA was isolated and used for RT-PCR amplification using CMV specific primers. RT-PCR resulted in the positive amplification in virus infected samples but not from a healthy control. The complete genome of CMV RNA-1 consists of 3360 nucleotides (nt) encoding replicase gene of 807 amino acids (aa). The CMV RNA-2 was 2983 nt in length containing 2a (859 aa) encoding RNA dependent RNA polymerase protein and 2b encoding viral silencing suppressor (112 aa), while RNA-3 encoding 3a movement protein (280 aa) and coat protein (219 aa) was 2223 nt in length. Phylogenetic analyses of nucleotide sequences of coleus CMV isolate is closely related to subgroup IB than to subgroup IA or II with other CMV isolates. In recombination analysis, the recombination event occurs between the subgroups of I, II as well as IA and IB in RNA 1, RNA2 and RNA3 of coleus isolate with other CMV isolates. To best of our knowledge, this is the first report of CMV infection in coleus.
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