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Research Publication

  • Pentacyclic Triterpenoids and a Linear Alkane from the Milky Mangrove Tree (Excoecaria agallocha L.) are toxic to the larva of Helicoverpa armigera Hubner.(Lepidoptera:Noctuidae)

    Throughout the world, as a part of the Integrated Pest Management (IPM), botanicals are evaluated for its efficacy against the polyphagous Pink Bollworm Helicoverpa armigera armigera Hubner. In our present study, hexane extract of the dry leaves of the milky mangrove tree Excoecaria agallocha L. exhibited dose-dependent growth inhibition of late 2nd...

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  • Biodegradation of Pesticidal Residue Using Traditional Plants with Medicinal Properties and Trichoderma

    The indiscriminate use of pesticides to control major pests and diseases has led to several adverse consequences and deepened agrarian distress, polluted the environment and created a heavy disturbance in the ecosystem, Ultimately the end users (human and animal beings) are also severely affected. Hence, it is essential to remove these chemo-pollutant from the environment. Biological removal of chemo-pollutants becomes the safest and easiest method. In the present study, some of the traditional...

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  • Evaluation of the genetic diversity and population structure in drumstick (Moringa oleifera L.) using SSR markers

    Moringa belongs to the family Moringaceae comprising 13 species of which Moringa oleifera is more widely cultivated. It is an economically important multipurpose tree with immense nutritional value and has significant potential to address malnutrition. In the present study, a total of 97 accessions collected from different districts of Tamil Nadu, Andhra Pradesh and Odisha were genotyped using 20 simple sequence repeat (SSR) markers to assess the genetic diversity and population structure. A...

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  • Microbial Consortial Products for Sustainable Agriculture: Commercialization and Regulatory Issues in India

    Rhizosphere microorganisms directly and indirectly influence the composition and productivity of natural plant communities. Hence, belowground microbial species richness has been proposed as a predictor of aboveground plant diversity and productivity. Though research-based evidences clearly show the advantages of microbial consortia-based products due to their multifunctionality, limited attention is being given to develop quality standards for registration. This chapter focuses on the uses,...

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  • Cryptogam Biodiversity and Assessment

    The mycobiont and whole thallus cultures of Bel. were established using soredia as an inoculum.The mycobiont Roccella montagnei cultures showed optimum growth, biomass and biosynthesis of compounds in Lilly and Barnett medium with glucose as a carbon source, micronutrients and vitamins. After the incubation period of 180 days, the cultures were harvested, and their biomass and secondary compound profiles were analysed. The HPTLC chromatogram of the acetone extract of erythrin the NT and...

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  • T-homoeolog specific plasma membrane protein 3 [Nt(t)PMP3-2] in polyploid Nicotiana tabacum shows conserved alternative splicing, derived from extant Nicotiana tomentosiformis parent

    Abiotic stress induced plasma membrane protein 3 (PMP3) genes occur as multigene families in plants, coding for hydrophobic proteins. Group I PMP3s code for shorter ORFs while Group II PMP3s code for proteins with C-terminal extensions. Allotetraploid Nicotiana tabacum (SSTT; 2n = 48) derives its parentage from extant ancestors related to Nicotiana sylvestris (SS) and Nicotiana tomentosiformis (TT). Polyploidization triggers complex genetic and epigenetic changes, often leading to homoeolog-...

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    An important outcome of the elucidation of the double helix structure of DNA is the beginning of the science of genetic engineering. Genetic engineering has made it possible to transfer genes across sexual barriers. However there are several of environmental, biosafety and other problems associated with the technology. Therefore, we must have a very good mechanism for measuring risks and benefits. The report submitted to the Government over ten years ago, one of us (MSS) had pointed out that, “...

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  • Sustaining and enhancing crop productivity in an era of climate change

    The earth is experiencing a faster change in climate in the 21st century than it had in the past. Abiotic stresses such as drought and salinity, exacerbated by the fast changing climatic conditions pose a major hurdle in sustaining crop productivity. Developing crop plants able to yield better under abiotic stresses offer hope in this situation. Understanding abiotic stress-tolerance mechanisms in a plant system is crucial to improve the stress tolerance. The present review discusses broad...

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  • Geneticist warns against dangers of fiddling with Nature

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  • Characterization of the predominant bacterial population of different mangrove rhizosphere soils using 16S rRNA gene-based single-strand conformation polymorphism (SSCP)

    Variations in chemical parameters and bacterial populations in mangrove rhizosphere samples were noted for different sites. The C, N, P and K contents as well as pH, EC and salinity showed variation between sites. Significant differences in soil properties were also found in sampling sites. Two types of soil were noted among sites. Guesthouse had significantly higher organic matter and nutrient content (N) than other three sites suggesting that human discharges, litter deposition and surface...

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