School Of Basic And Applied Sciences

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    Comparative analysis of metabolites in contrasting chickpea cultivars
    (Springer, 2019) Ghosh A.; Dadhich A.; Bhardwaj P.; Babu J.N.; Kumar V.
    Chickpea (Cicer arietinum L.) is a good source of nutrients for animals and human consumption. In the present study, we analyzed the anthocyanin and total phenolic contents in two contrasting (desi and kabuli) chickpea cultivars. The quantification of anthocyanins showed higher amount in desi as compared to kabuli chickpea. The total phenolic contents was estimated in desi and kabuli chickpea using two different solvents (50% Acetone and 70% Methanol extracts) for coverage of all potential phenolic compounds. In continuation, desi chickpea culitvars (himchana and ICC4958) were found to be significantly higher total phenolic contents (in both solvent extracts) as compared to kabuli cultivars (JGK-03 and L-552). Higher phenolic contents was found to be directly correlated to higher anthocyanin contents in desi as compared to kabuli chickpea. The volatile organic compounds were also analyzed using gas chromatography mass spectroscopy technique in both cultivars. The significant compositional differences in volatile organic composition (polar and non-polar) of desi and kabuli cultivars were also found to be noticed using two different solvent extractions (methanol and chloroform). The comparative analysis of volatile organic acids in methanolic and chloroform extracts of desi cultivars (himchana and ICC4958), kabuli cultivars (JGK-03 and L-552) and between desi and kabuli cultivars was also carried out for in-depth understanding of the differential patterns of low molecular weight metabolites. Six metabolites were found to be common in all four selected cultivars in chloroform extracted samples, while four were found to be common in all four selected cultivars in methanolic extracted samples. The remaining detected metabolites are uncommon among different cultivars and represented as cultivar specific signatory metabolites. In conclusion, the present investigation revealed higher anthocyanin and phenolic contents in desi cultivars as compared to kabuli cultivars and differential accumulation of volatile organic compounds in chickpea cultivars. The metabolite alterations among desi and chickpea cultivars could be the potential attribute for diversity, resilience and commercial usuages.
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    Nutrient enhancement of chickpea grown with plant growth promoting bacteria in local soil of Bathinda, Northwestern India
    (Springer, 2019) Dogra, Nitin; Yadav, Radheshyam; Kaur, Manpreet; Adhikary, Arindam; Kumar, Sanjeev; Ramakrishna, Wusirika
    Plant growth promoting bacteria (PGPB) enhance crop productivity as part of green technology to reduce the use of chemical fertilizers. They also have the capability to enhance macro- and micronutrient content of plants. In the present study, PGPB isolates belonging to Pseudomonas citronellis (PC), Pseudomonas sp. RA6, Serratia sp. S2, Serratia marcescens CDP13, and Frateuria aurantia (Symbion-K) were tested on two chickpea varieties, PBG1 and PBG5 grown for 30 days in local soil from Bathinda region in Northwestern India. PC and CDP13 were found to be better chickpea growth stimulators compared to the commercial Symbion-K based on shoot length and biomass. Most PGPB enhanced macro- and micronutrients in shoots to varying degrees compared to the control. PBG5 gave better response compared to PBG1 with reference to plant growth attributes and enhancement of the macronutrients, calcium, nitrogen and phosphorus and micronutrients, boron, copper, iron, and zinc. PBG5 is a high yielding variety with better resistance compared to PBG1. Overall, PGPB isolated from the local soil and PGPB from other parts of India were shown to be useful for enhancement of nutrient content and plant growth.
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    Comparative Analysis of Metabolites in Contrasting Chickpea Cultivars
    (Central University of Punjab, 2018) Ghosh, Alokesh; Kumar, Vinay
    Phenolics are the major class of plant secondary metabolites. Among half of the plant phenolics are the flavonoids. The production of these metabolites induces during stresses and thus helps the plant to cope with the environment. Anthocyanins, a class of flavonoids protects plant from harmful UV rays, attracts the pollinators and seed dispersal, helps in mimicry and also helps in the root nodulation process in legumes. Chickpea is a leguminous and major pulse crop plant, shown in the winter season faces lots of stress. Anthocyanins and other phenolics help the plant to tolerate such stresses. Desi cultivars have more phenolics and anthocyanin as compared to the kabuli one. Flowers have higher concentration of anthocyanin than in leaves. Untargeted metabolomics profiling of the dry powdered mature seed samples of contrasting chickpea cultivars detects primary and secondary metabolites such as fatty acids, phenolics, phelols, terpenes, esters,sugar,etc in the seeds of chickpea.