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1. Trichomes and Yield Traits in Mentha arvensis: Genotype Performance and Stability Evaluation

Author:
Dhawan, Sunita Singh,   et al.   ; Mishra, Anand; Jain, Payal; Lal, R. K.;     Show all 4 Authors
Source:
Journal of herbs, spices & medicinal plants 2018 v.24 no.1 pp. 1-14
ISSN:
1540-3580
Subject:
Mentha arvensis; cultivars; essential oils; genotype; genotype-environment interaction; trichomes; Himalayan region
Abstract:
... The stability and adaptability pattern of nine cultivars/varieties of Mentha arvensis, namely, Saksham, Kosi, Himalaya, Gomti, Sambhav, Kalka, Damroo, Kushal, and Shivalik, over three consecutive years was established. Genotype × environment interactions (G × Y) were different for characters, indicating that the genotypes had a varying linear response to environmental changes. Glandular trichome c ...
DOI:
10.1080/10496475.2017.1357160

2. Nanoparticles alter the withanolide biosynthesis and carbohydrate metabolism in Withania somnifera (Dunal)

Author:
Dhawan, Sunita Singh,   et al.   ; Singh, Ruchi; Singh, Dharmendra Pratap; Gupta, Pankhuri; Jain, Payal; Sanchita,; Mishra, Tripti; Kumar, Anil; Shirke, Pramod Arvind;     Show all 9 Authors
Source:
Industrial crops and products 2019 v.127 pp. 94-109
ISSN:
0926-6690
Subject:
Calvin cycle; Withania somnifera; absorption; biosynthesis; cadmium; carbohydrates; electron transfer; electrons; elicitors; gas exchange; gene expression regulation; genes; medicinal plants; nanoparticles; nanosilver; nickel; oxidative stress; photocatalysis; plant growth; secondary metabolites; selenium; silver; transpiration; zinc
Abstract:
... Withania somnifera is an important medicinal plant due to the presence of secondary metabolites. Nanoparticles (NPs) have elicitor activity for the enhancement of secondary metabolites biosynthesis in plants. W. somnifera plants were grown in-vitro and in-vivo and treated with homologous series of Zn-Ag NPs, Ni, and CdSe. Four NPs having different molar ratio of Zn and Ag have been used for the tr ...
DOI:
10.1016/j.indcrop.2018.10.049

3. Biochemical characterization and spatio-temporal analysis of the putative L-DOPA pathway in Mucuna pruriens

Author:
Dhawan, Sunita Singh,   et al.   ; Singh, Susheel Kumar; Lal, Raj Kishori; Shanker, Karuna; Singh, Manju;     Show all 5 Authors
Source:
Planta 2018 v.248 no.5 pp. 1277-1287
ISSN:
0032-0935
Subject:
L-dopa; Mucuna pruriens; amino acid transporters; biochemical pathways; catechol oxidase; chemical composition; dopamine; gene expression; leaves; metabolites; mutants; polyphenols; regulator genes; seeds; stems; transcriptome; transcriptomics; tyrosine
Abstract:
... MAIN CONCLUSION: Transcriptome analysis and biochemical characterization of the putative l-3,4-dihydroxyphenylalanine (l-DOPA) pathway in Mucuna pruriens (L.) DC have been performed. Spatio-temporal quantification of the putative l-DOPA biosynthetic pathway genes and its correlation with respective metabolites was established. l-tyrosine, l-DOPA, and dopamine from all plant parts were quantified. ...
DOI:
10.1007/s00425-018-2978-7

4. Genetic differentiation within Vetiveria zizanioides: selection and breeding of commercial perfumery grass Vetiver

Author:
Dhawan, Sunita Singh,   et al.   ; Gupta, Pankhuri; Mishra, Anand; Singh, Susheel Kumar; Chauhan, Harmesh Singh;     Show all 5 Authors
Source:
Journal of herbs, spices & medicinal plants 2018 v.24 no.4 pp. 323-331
ISSN:
1540-3580
Subject:
Chrysopogon zizanioides; DNA; breeding; genetic similarity; genetic variation; principal component analysis; random amplified polymorphic DNA technique; variance
Abstract:
... Eighteen Vetiveria zizanioides accessions were analyzed for genetic diversity by Random Amplified Polymorphic DNA (RAPD) including CIM-Vridhi, an elite released variety. Twenty MAP primers were used to detect the DNA polymorphism and a total of 152 bands were obtained, out of which 45 were monomorphic, 137 polymorphic, 15 unique bands and 73.1% polymorphism were estimated. The average polymorphic ...
DOI:
10.1080/10496475.2018.1493015

5. Modulations in primary and secondary metabolic pathways and adjustment in physiological behaviour of Withania somnifera under drought stress

Author:
Dhawan, Sunita Singh,   et al.   ; Singh, Ruchi; Gupta, Pankhuri; Khan, Furqan; Singh, Susheel Kumar; Sanchita,; Mishra, Tripti; Kumar, Anil; Shirke, Pramod Arvind;     Show all 9 Authors
Source:
Plant science 2018 v.272 pp. 42-54
ISSN:
0168-9452
Subject:
Calvin cycle; Withania somnifera; alkaloids; antioxidants; biosynthesis; carbon; carbon dioxide; chloroplasts; drought; drought tolerance; fructans; fructose; fructose-bisphosphate aldolase; gene expression; genes; glucose; hexoses; isoprenoids; leaves; medicinal plants; oxidative stress; phenols; phosphates; phosphorylation; physiological response; secondary metabolites; squalene; water stress
Abstract:
... In general medicinal plants grown under water limiting conditions show much higher concentrations of secondary metabolites in comparison to control plants. In the present study, Withania somnifera plants were subjected to water stress and data related to drought tolerance phenomenon was collected and a putative mechanistic concept considering growth responses, physiological behaviour, and metaboli ...
DOI:
10.1016/j.plantsci.2018.03.029

6. A cold-tolerant evergreen interspecific hybrid of Ocimum kilimandscharicum and Ocimum basilicum: analyzing trichomes and molecular variations

Author:
Dhawan, Sunita Singh,   et al.   ; Shukla, Preeti; Gupta, Pankhuri; Lal, R. K.;     Show all 4 Authors
Source:
Protoplasma 2016 v.253 no.3 pp. 845-855
ISSN:
0033-183X
Subject:
Ocimum basilicum; Ocimum kilimandscharicum; amplified fragment length polymorphism; cold; cold stress; cold tolerance; essential oils; eugenol; flavonoids; freezing; frost; gene overexpression; genes; genotype; hybrids; leaves; linalool; loci; methyl chavicol; methyl eugenol; microsatellite repeats; odors; plant response; polyphenols; polysaccharides; proline; random amplified polymorphic DNA technique; transcription (genetics); transcription factors; trichomes
Abstract:
... Ocimum (Lamiaceae) is an important source of essential oils and aroma chemicals especially eugenol, methyl eugenol, linalool, methyl chavicol etc. An elite evergreen hybrid has been developed from Ocimum kilimandscharicum and Ocimum basilicum, which demonstrated adaptive behavior towards cold stress. A comparative molecular analysis has been done through RAPD, AFLP, and ISSR among O. basilicum and ...
DOI:
10.1007/s00709-015-0847-9

7. Genetic elaborations of glandular and non-glandular trichomes in Mentha arvensis genotypes: assessing genotypic and phenotypic correlations along with gene expressions

Author:
Dhawan, Sunita Singh,   et al.   ; Mishra, Anand; Lal, R. K.; Chanotiya, C. S.;     Show all 4 Authors
Source:
Protoplasma 2017 v.254 no.2 pp. 1045-1061
ISSN:
0033-183X
Subject:
Mentha arvensis; biosynthesis; chemistry; chlorophyll; cultivars; essential oils; genes; genetic variation; genotype; glutathione transferase; glutathione-disulfide reductase; hairs; heritability; industry; leaves; malondialdehyde; menthol; odors; oils; phenolic compounds; phenotype; phenotypic correlation; phosphopyruvate hydratase; secondary metabolites; testa; transcription (genetics); transcription factors; trichomes; vascular plants
Abstract:
... Mentha arvensis (corn mint) is well known for the production of menthol, a widely used commodity in pharma and flavoring industries and provides natural fragrances and products. Glandular trichomes are specialized hairs found on the aerial surface of vascular plants species producing specific secondary metabolite chemistry. Correlations were established among trichomes, oil yield, and major second ...
DOI:
10.1007/s00709-016-1011-x

8. Analysis of differentially expressed genes in abiotic stress response and their role in signal transduction pathways

Author:
Dhawan, Sunita Singh,   et al.   ; Sanchita,; Sharma, Ashok;     Show all 3 Authors
Source:
Protoplasma 2014 v.251 no.1 pp. 81-91
ISSN:
0033-183X
Subject:
abiotic stress; drought; enzymes; gene expression; gene expression regulation; genes; signal transduction; stress response; stress tolerance; temperature
Abstract:
... The study of abiotic stress response of plants is important because they have to cope with environmental changes to survive. The plant genomes have evolved to meet environmental challenges. Salt, temperature, and drought are the main abiotic stresses. The tolerance and response to stress vary differently in plants. The idea was to analyze the genes showing differential expression under abiotic str ...
DOI:
10.1007/s00709-013-0528-5

9. Adaptability and stability based differentiation and selection in aromatic grasses (Cymbopogon species) germplasm

Author:
Dhawan, Sunita Singh,   et al.   ; Gupta, Pankhuri; Lal, Raj Kishori;     Show all 3 Authors
Source:
Industrial crops and products 2015 v.78 pp. 1-8
ISSN:
0926-6690
Subject:
Cymbopogon; clones; essential oils; genotype; germplasm; grasses; hybrids; models
Abstract:
... The investigation was carried out to determine the stability and adaptability pattern among seventeen clones of the six Cymbopogon species namely; C. khasianus cv. Suwarna, C. martini var. Motia cv. Harsh, C. flexuosus cv. Krishna, hybrid of C. pendulus×C. khasianus cv. CKP-25, C. winterianus cv. CIM Jeeva, C. citratus cv. T-1 and C. pendulus cv. Praman. The genotypes were examined in terms of qua ...
DOI:
10.1016/j.indcrop.2015.10.018