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Metabolite Profiling for Six 'B'vitamins Using LC-MS in Tomato Genotypes See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/306103124 Metabolite profiling for six ‘B’vitamins using LC-MS in tomato genotypes at different stages of fruit maturity Article in Journal of Horticultural Science · January 2015 CITATIONS READS 0 416 1 author: Shivashankar Kodthalu 6 PUBLICATIONS 24 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: DBT project View project All content following this page was uploaded by Shivashankar Kodthalu on 15 August 2016. The user has requested enhancement of the downloaded file. JOURNAL OF HORTICULTURAL SCIENCES Society for Promotion of Horticulture ICAR - Indian Institute of Horticultural Research, Bengaluru - 560 089 JOURNAL OF HORTICULTURAL SCIENCES Volume 10 Number 1 June 2015 CONTENTS Research Article Biochemical changes during plantlet regeneration in two accessions of Mucuna pruriens 1 S. Raghavendra, C.K. Ramesh, V. Kumar, M.H.M. Khan and B.S Harish Variation in relation between yield and yield attributes in ‘Thompson Seedless’ grape and its clones 8 S.D. Shikhamany, Sanjay K. Jeughale, Kailas N. Khapre and R. Venugopalan Induction of off-season flowering in custard apple (Annona squamosa L.) cv. Balanagar 13 G.M. Vinay and R. Chithiraichelvan Fertilizer-prescription equations for targeted yield in radish under integrated nutrient management system 18 Kaushik Batabyal, Dibyendu Sarkar and Biswapati Mandal Evaluation of cut-foliage plants for Eastern Ghats 24 I. Suryapriya, R. Arulmozhiyan, A. Sankari and M. Anand Metabolite profiling for six ‘B’ vitamins using LC-MS in tomato genotypes at different stages of fruit maturity 30 P. Kavitha, K.S. Shivashankara, T.K. Roy, K.C. Pavithra, V.K. Rao, A.T. Sadashiva, K.V. Ravishankar and G.J. Sathish Changes in fruit quality and carotenoid profile in tomato (Solanum lycopersicon L.) 38 genotypes under elevated temperature K.S. Shivashankara, K.C. Pavithra, R.H. Laxman, A.T. Sadashiva, T.K. Roy and G.A. Geetha Direct nutrient-feeding to ‘Ney Poovan’ banana (Musa sp. AB) bunch under organic or 44 conventional farming for yield, fruit quality and profitability S.C. Kotur Effect of polyamines on storability and quality of pomegranate fruit (Punica granatum L.) cv. Bhagwa 48 D.P. Waskar, V.S. Khandare, B.M. Kalalbandi and P.S. Shelke Nutraceutical composition of ber (Zizyphus mauritiana Lamk.) juice: effect of enzyme-assisted processing 54 V.S. Khandare, D.P. Waskar, B.M. Kallabandi and T.J. Pawar Evaluation of potato genotypes for processing traits in late autumn 57 Prabhjot Kaur, V.K. Vashist and Ajay Kumar Survey of nematode-destroying fungi from selected vegetable-growing areas in Kenya 64 P.M. Wachira, J.N. Muindi and S.A. Okoth Economic analysis of post-harvest loss and marketing efficiency in guava 70 (cv. Allahabad safeda) in Karnataka T.M. Gajanana, D. Sreenivasa Murthy, A.K. Saxena, D.V. Sudhakar Rao, M. Sudha and V. Dakshinamoorthy Evaluation of brinjal genotypes against bacterial wilt caused by Ralstonia solanacearum 74 H.M. Santhosha, K.M. Indiresh, C. Gopalakrishnan and T.H.Singh Evaluation of F1 hybrids and their parents for growth, yield and quality in cherry tomato 79 (Solanum lycopersicum var. cerasiforme) Renuka Muttappnavar, A.T. Sadashiva, T.H. Singh, K.M. Indiresh Plant traits in fig as indicators of resistance to shoot borer, Dyscerus? fletcheri Marshall 83 (Coleoptera: Curculionidae) P.D. Kamala Jayanthi, Abraham Verghese, R. Chittiraichelvan and Ravindra Kumar A guide to in silico identification of miRNAs and their targets 90 V. Radhika, Kanupriya, R. Rashmi and C. Aswath Studies on fruit and yield traits in indigenous coloured varieties of mango (Mangifera indica L.) 94 in South Gujarat, India H. Rymbai, C.R. Patel, T.R. Ahlawat and N.L. Patel Effect of in situ rainwater harvesting and mulching on growth, yield and fruit quality of mango var. 99 Arka Neelachal Kesri in Eastern India Deepa Samant, S. Mandal, H.S. Singh, Vishal Nath and Reju M. Kurian Effect of hormonal treatment and mulching on fruit-drop and quality in mango 102 Sanjeev Kumar Banyal and Deepa Sharma Bio-fortification with iron and manganese for enhanced bunch yield in ‘Robusta’ banana through 107 direct nutrient-feeding S.C. Kotur Effect of pinching and growth retardants on growth and flowering in African marigold 109 cv. Pusa Narangi Gainda K. Sasikumar, V. Baskaran and K. Abirami Antioxidant composition of guava (Psidium guajava L.) beverage blended with black-carrot juice 112 V.S. Khandare, D.P. Waskar, B.M. Kalalbandi and S.M. Panpatil Influence of nitrogen and phosphorus on flowering in African marigold 116 (Tagetes erecta L.) var. Cracker Jack M. Raja Naik Effect of integrated nutrient management on vegetative growth and yield in mango cv. Himsagar 120 S.R. Singh, B.C. Banik and M.A. Hasan J. Hortl. Sci. Vol. 10(1):1-7, 2015 Biochemical changes during plantlet regeneration in two accessions of Mucuna pruriens S. Raghavendra, C.K. Ramesh 1, V. Kumar2, M.H.M. Khan3 and B.S Harish4 Department of Biochemistry, College of Horticulture University of Horticultural Sciences Bagalkot – 587102, India E-mail: [email protected] ABSTRACT The genus Mucuna is an important medicinal herb and is extensively used in traditional Indian systems of medicine for various ailments. In vitro culture technique provides an alternative to plant propagation and germplasm conservation. Our aim was to study the biochemical changes occurring during regeneration of shoots (plantlets) from explants of two accessions of Mucuna pruriens, by monitoring the efficiency of nitrogen utilization and changes in levels of some hydrolytic enzymes. A rapid micropropagation system was developed using Murashige and Skoog’s (MS) medium supplemented with BAP and IAA combined. In both the accessions, 3.0mg l-1 6-BAP, in combination with 0.2mg l-1 IAA, induced shoot buds and shoot elongation; however for multiple-shoot induction, a slightly higher concentration of cytokinin, i.e., 3.5mg l-1 6-BAP, in combination with 0.2mg l-1 IAA, was required. Results of the present study confirm an active growth of explants revealed by nitrate assimilation enzymes and hydrolytic enzymes. It is concluded that medium composition, growth regulator combination and culture incubation conditions are all vital in both the accessions of Mucuna pruriens for induction of in vitro plant regeneration. Key words: Mucuna, in vitro, biochemical changes, regeneration, enzymes INTRODUCTION enzymes provides a reasonable and promising approach to understanding the biochemical basis of developmental The genus Mucuna belongs to the family Fabaceae pathways (Singh et al, 2009). Therefore, there is a need to (Leguminoceae) and includes about 150 species of annual study structural and biochemical aspects underlying initiation and perennial legumes with pan-tropical distribution. Mucuna of organized development in vitro (Sujatha et al, 2000). pruriens L. is a well-known medicinal plant, yet, study on The present study was aimed at investigating the its pharmacological properties and corresponding compounds biochemical changes that occur during regeneration of still continues. Importance of the genus Mucuna as a shoots (plantlets) in explants of two accessions of Mucuna medicinal plant is mainly due to presence of L-Dopa. L- pruriens, viz., Accession 1 (M. pruriens bearing a black Dopa (3,4 dihydroxy–L–phenylalanine) is a neurotransmitter seed-coat) and Accession 2 (M. pruriens bearing a white precursor used for symptomatic relief of Parkinson’s seed-coat). This was done by monitoring the efficiency of disease. Further, it acts as a precursor for several enzymes involved in nitrogen utilization, and changes in the neurologically important catecholamines such as the level of some hydrolytic enzymes. neurotransmitter dopamine and the important hormones, adrenaline and noradrenalin (Riley, 1997). MATERIAL AND METHODS Reproducible regeneration of shoots from various Plant material and preparation of explants explants is desirable in plant tissue culture for crop Seeds of both the accessions of Mucuna pruriens improvement (Christopher et al, 1991). Differentiation of were procured from University of Agricultural Sciences, structures in tissue culture is controlled by growth regulators, Bengaluru. The seeds were surface-sterilized with 1% along with other components of the culture medium mercuric chloride for 5 min, followed by washing in sterile (Narender et al, 2011). Analysis of activities of various distilled water 5-6 times to remove traces of the surface- 1Department of Studies in Biotechnology, Sahyadri Science College, Shivamogga – 577 102, Karnataka, India 2Department of Biochemistry, Davangere University (Kuvempu University P.G Center), Shivagangothri, Davangere - 577 002, Karnataka, India 3Department of Chemistry, Jawaharlal Nehru National College of Engineering, Shivamogga – 577201, Karnataka, India 4Department of Medicinal and Aromatic plants, College of Horticulture Sciences, University of Horticulture Sciences, Bagalkot – 587102, Karnataka, India Raghavendra et al sterilant. These were then germinated in vitro on basal MS carried out as per Sadasivam and Manickam (2008). (Murashige and Skoog, 1962) medium. Plants grown thus Peroxidase extraction was done as per Lorenza M. Bellani were used as the explant source. Explants were trimmed et al (2002) and its activity was assayed as per Oskar aseptically (1.5 to 2.0cm) and inoculated onto MS medium. Sanchez et al (1989). Media and culture conditions
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