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Sensitivity of Labile Soil Organic carbon Pools to Long-Term Fertilizer, Straw and Manure Management in Rice-Wheat System

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Pedosphere 2015年第4期25卷 534-545页

作者： dinesh K.BENBI Kiranvir BRAR Amardeep S.TOOR Shivani SHARMA Department of Soil Science Punjab Agricultural University

Labile soil organic carbon(SOc) pools, estimated through chemical fractionation techniques, are considered sensitive indicators of management-induced changes in quality and composition of soil organic matter. Although the impacts of organic manure and crop residue applications on c sequestration in rice-wheat system are fairly well documented, their influence on labile SOc pools is relatively less known. Impacts of organic manure, rice straw, and inorganic fertilizer nitrogen(N) applications on soil total organic carbon(TOc)and SOc pools including water-extractable organic c(WEOc), hot water-soluble organic c(HWOc), potassium permanganateoxidizable organic c(KMnO 4-c), microbial biomass c(MBc), mineralizable organic c(cmin), and the oxidizable fractions of decreasing oxidizability(easily-oxidizable, oxidizable, and weakly-oxidizable) were investigated in an 11-year field experiment under rice-wheat system. The field experiment included treatments of different combinations of farmyard manure, rice straw, and fertilizer N application rates, with c inputs estimated to be in the range from 23 to 127 Mg ha-1. After 11 years of experiment, WEOc,HWOc, and KMnO 4-c were 0.32%–0.50%, 2.2%–3.3%, and 15.0%–20.6% of TOc, respectively. The easily-oxidizable, oxidizable,and weakly-oxidizable fractions were 43%–57%, 22%–27%, and 10%–19% of TOc, respectively. The applications of farmyard manure and rice straw improved WEOc, HWOc, KMnO 4-c, easily-oxidizable fraction, cmin, and MBc, though the rates of change varied considerably from-14% to 145% and-11% to 83% of TOc, respectively. At the c input levels between 29 and 78 Mg c ha-1during the 11-year period, the greatest increase was observed in WEOc and the minimum in KMnO 4-c. Water-extractable organic c exhibited a relatively greater sensitivity to management than TOc, suggesting that it may be used as a sensitive indicator of management-induced changes in soil organic matter under rice-wheat system. All the other labile SOc pools

关键词：土壤有机碳库水稻秸秆有机肥敏感性管理长期施肥系统小麦

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High-temperature solution growth of large size chalcogenide FeTxSe(T:Fe,co)superconducting single crystals

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Superconductivity 2022年第3期3卷 39-45页

作者： Veg Singh Bhatt Anil K.Yadav dinesh Dixit c.V.Tomy Department of Physics Ch.Charan Singh University MeerutUP 250004India Department of Physics Indian Institute of Technology BombayMumbai 400076India central Facility Indian Institute of Technology DelhiSonipatIndia

We report the growth of high quality Fe excess and co doped,FeTxSe single crystals in nominal ratio via slow cooling method of high temperature solution growth technique and,their structural and physical properties through the X‐ray diffraction,Raman spectroscopy,magnetic and transports *** area electron diffraction(SAED)patterns and X‐ray diffraction of cleavage piece confirm the growth of single crystals in(h0l)*** of phonon vibration modes(A_(1g) and B_(1g))in Raman spectroscopy measurements mark the qualitative analysis of these single *** temperature magnetic and electrical transport studies manifest the superconducting nature of both single crystals.

关键词： chalcogenide superconductor Single crystals Slow cooling method Raman measurements

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Heteromeric and Homomeric Geranyl Diphosphate Synthases from catharanthus roseus and Their Role in Monoterpene Indole Alkaloid Biosynthesis

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Molecular Plant 2013年第5期6卷 1531-1549页

作者： Avanish Rai Shachi S. Smita Anup Kumar Singh Karuna Shanker dinesh A. Nagegowda cSIR-central Institute of Medicinal and Aromatic Plants Research centre Bangalore 560065 India cSIR-central Institute of Medicinal and Aromatic Plants Lucknow 226015 India

catharanthus roseus is the sole source of two most important monoterpene indole alkaloid （MIA） anti- cancer agents： vinblastine and vincristine. MIAs possess a terpene and an indole moiety derived from terpenoid and shikimate pathways, respectively. Geranyl diphosphate （GPP）, the entry point to the formation of terpene moiety, is a product of the condensation of isopentenyl diphosphate （IPP） and dimethylallyl diphosphate （DMAPP） by GPP synthase （GPPS）. Here, we report three genes encoding proteins with sequence similarity to large subunit （***） and small subunit （***） of heteromeric GPPSs, and a homomeric GPPSs. *** is a bifunctional enzyme producing both GPP and geranyl geranyl diphosphate （GGPP）, *** is inactive, whereas crGPPS is a homomeric enzyme forming GPP. co-expression of both subunits in Escherichia coil resulted in heteromeric enzyme with enhanced activity producing only GPR While *** and crGPPS showed higher expression in older and younger leaves, respectively, *** showed an increasing trend and decreased gradually. Methyl jasmonate （MelA） treatment of leaves sig- nificantly induced the expression of only ***. GFP localization indicated that *** is plastidial whereas crGPPS is mitochondrial. Transient overexpression of *** in c. roseus leaves resulted in increased vindoline, immediate monomeric precursor of vinblastine and vincristine. Although c. roseus has both heteromeric and homomeric GPPS enzymes, our results implicate the involvement of only heteromeric GPPS with *** regulating the GPP flux for MIA biosynthesis.

关键词： c. roseus monoterpene indole alkaloids geranyl diphosphate synthase heteromer homomer large subunit small subunit vindoline.

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Genome-Wide comparative in silico Analysis of calcium Transporters of Rice and Sorghum

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Genomics, Proteomics & Bioinformatics 2011年第4期9卷 138-150页

作者： Anshita Goel Gohar Taj dinesh Pandey Sanjay Gupta Anil Kumar Department of Molecular Biology and Genetic Engineering College of Basic Sciences and Humanities G.B. Pant University of Agriculture and Technology Department of Biotechnology Uttrakhand Technical University Department of Biotechnology SBS Biomedical P.G. Institute of Biomedical Science and Research

The mechanism of calcium uptake, translocation and accumulation in Poaceae has not yet been fully understood. To address this issue, we conducted genome-wide comparative in silico analysis of the calcium （ca2＋） transporter gene family of two crop species, rice and sorghum. Gene annotation, identification of upstream cis-acting ele- ments, phylogenetic tree construction and syntenic mapping of the gene family were performed using several bio- informatics tools. A total of 31 ca2＋ transporters, distributed on 9 out of 12 chromosomes, were predicted from rice genome, while 28 ca2＋ transporters predicted from sorghum are distributed on all the chromosomes except chromosome 10 （chr 10）. Interestingly, most of the genes on chr 1 and chr 3 show an inverse syntenic relation- ship between rice and sorghum. Multiple sequence alignment and motif analysis of these transporter proteins re- vealed high conservation between the two species. Phylogenetic tree could very well identify the subclasses of channels, ATPases and exchangers among the gene family. The in silico c/s-regulatory element analysis suggested diverse functions associated with light, stress and hormone responsiveness as well as endosperm- and meris- tem-specific gene expression. Further experiments are warranted to validate the in silico analysis of the predicted transporter gene family and elucidate the functions of ca2＋ transporters in various biological processes.

关键词： in silico comparison calcium transporter rice sorghum genomic annotation synteny

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DISc1 genetics, biology and psychiatric illness

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Frontiers in Biology 2013年第1期8卷 1-31页

作者： Pippa A. THOMSON Elise L.V. MALAVASI Ellen GRüNEWALD dinesh c. SOARES Malgorzata BORKOWSKA J. Kirsty MILLA The centre for Molecular Medicine at the Medical Research council Institute of Genetics and Molecular Medicine The University of Edinburgh Western General Hospital Crewe Road Edinburgh EH4 2XU UK Division of Psychiatry The University of Edinburgh Royal Edinburgh Hospital Edinburgh EH10 5HF UK centre for Integrative Physiology The University of Edinburgh Edinburgh EH8 9XD UK

Psychiatric disorders arc highly heritable, and in many individuals likely arise from the combined effects of genes and the environment. A substantial body of evidence points toward D1ScI being one of the genes that influence risk of schizophrenia, bipolar disorder and depression, and functional studies of DISc1 consequently have the potential to reveal much about the pathways that lead to major mental illness. Here, we review the evidence that DISc1 influences disease risk through effects upon multiple critical pathways in the developing and adult brain.

关键词： DISc1 schizophrenia depression genetics neural pathways

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BanSatDB, a whole-genome-based database of putative and experimentally validated microsatellite markers of three Musa species

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The crop Journal 2018年第6期6卷 642-650页

作者： Vasu Arora Neera Kapoor Samar Fatma Sarika Jaiswal Mir Asif Iquebal Anil Rai dinesh Kumar center for Agricultural Bioinformatics ICAR-Indian Agricultural Statistics Research Institute School of Sciences Indira Gandhi National Open University

The genus Musa is one of three genera in the family Musaceae, which includes bananas and plantains, which are monocotyledonous plants. Bananas have valuable nutritional content of vitamin c, B6, minerals, and dietary fiber and are a rich food energy source, given that carbohydrates account for 22%–32% of fruit weight. Molecular markers are valuable for crop improvement and population genetics studies. The availability of whole-genome sequence and in silico approaches has revolutionized bulk marker discovery. We describe an online web genomic resource, BanSatDB(http://***/bansatdb/) having the highest number(>341,000) of putative STR markers from Musa genera so far, represented by three species: M. acuminata(110,000), M. balbisiana(107,000), and M. itinerans(124,000)from 11 chromosomes of each species. BanSatDB has also been populated with 580 validated STR markers from the published literature. It is based on a three-tier architecture using MySQL, PHP and Apache. The markers can be retrieved by use of multiple search parameters including chromosome number(s), microsatellite types(simple or compound),repeat nucleotides(1–6), copy number, microsatellite length, pattern of repeat motif, and chromosome location. These markers can be used for Distinctness, Uniformity and Stability(DUS) tests of variety identification and for marker assisted selection(MAS) in variety improvement and management. These STRs have also proved to be helpful in classification of Musa germplasm to distinguish individual accessions and in the development of a standardized procedure for genotyping. These markers can also be used in gene discovery and QTL mapping. The database represents a source of markers for developing and implementing new approaches for molecular breeding, which are required to enhance banana productivity.

关键词： Musaceae Musa Banana Microsatellite Short tandem repeat(STR) Primers

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corrosion behavior of as-cast Mg–8Li–3Al+xce alloy in 3.5wt% Nacl solution

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International Journal of Minerals,Metallurgy and Materials 2016年第10期23卷 1196-1203页

作者： S.Manivannan P.dinesh R.Mahemaa Nandhakumaran MariyaPillai S.P.Kumaresh Babu Srinivasan Sundarrajan Department of Metallurgical and Materials Engineering National Institute of Technology Tirchirappalli 620015 Tamil Nadu India TVS Sundaram-clayton Limited Chennai 600050 Tamil Nadu India

Mg-8Li-3Al＋xce alloys（x = 0.5wt%, 1.0wt%, and 1.5wt%） were prepared through a casting route in an electric resistance furnace under a controlled atmosphere. The cast alloys were characterized by X-ray diffraction, optical microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The corrosion behavior of the as-cast Mg-8Li-3Al＋xce alloys were studied under salt spray tests in 3.5wt% Nac l solution at 35°c, in accordance with standard ASTM B-117, in conjunction with potentiodynamic polarization（PDP） tests. The results show that the addition of ce to Mg-8Li-3Al（LA83） alloy results in the formation of Al_2ce intermetallic phase, refines both the α-Mg phase and the Mg_（17）Al_（12） intermetallic phase, and then increases the microhardness of the alloys. The results of PDP and salt spray tests reveal that an increase in ce content to 1.5wt% decreases the corrosion rate. The best corrosion resistance is observed for the LA83 alloy sample with 1.0wt% ce.

关键词： magnesium lithium alloys cerium sodium chloride solutions corrosion rate polarization

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Biogas Production from co-Digestion of Grass with Food Waste

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Journal of Agricultural chemistry and Environment 2020年第1期9卷 27-36页

作者： Hamidatu S. Darimani dinesh c. Pant Department of Agricultural Engineering School of Engineering Wa Polytechnic Wa Upper West Ghana The Energy and Resources Institute (TERI) Darbari Seth Block Habitat Centre New Delhi India

Management of grasslands in Ghana has become so poor that most rural communities result in bushfires that cause a lot of environmental challenges. Grass could be used for biogas generation. This study investigated the effect of grass and food waste co-digestion on the biogas yield and clarified how the addition of grass enhances the AD performance. Grass (GR) mixed with the co-substrate food waste (FW) was then evaluated under anaerobic conditions for the production of biogas (methane). Five laboratory-scale reactors, R1 (100% FW, 0% GR), R2 (75% FW, 25% GR), R3 (50% FW, 50% GR), R4 (25% FW, 75% GR) and R5 (0% FW, 100% GR) were set up with different proportions of grass and food waste which had 8% total solid concentration. Digestion was carried out for twenty (20) days at room temperature, 35°c ± 2°c. The biogas yield in the R1, R2, R3, R4, R5 was 805, 840, 485, 243 and 418 mL respectively. Food waste only produced 805 mL and grass only produced 418 mL of biogas. Food waste only produced 50% more biogas than grass. However, co-digestion at 75% FW, 25% resulted in 6% more biogas than food waste only.

关键词： Grass co-Substrate Food Waste Anaerobic Digestion Biogas

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Dicationic Ionic Liquid Mediated Synthesis of 5-Arylidine-2,4-thiazolidinediones

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chinese Journal of chemistry 2011年第5期29卷 942-946页

作者： Jawale Dhanaji V. Pratap Umesh R. Lingampalle dinesh L. Mane Ramrao A. Department of chemistry Dr. Babasaheb Ambedkar Marathwada University Aurangabad 431004 Maharashtra India

An efficient synthesis of 5-arylidine-2,4-thiazolidinediones has been developed using dicationic ionic liquid as green medium and catalyst. This method performed well for the condensation of both aryl as well as heter... 详细信息

关键词： 2,4-thiazolidinedione dicationic ionic liquid type 2 diabetes mellitus Knoevenagel condensation sul- fur heterocycles aldehydes

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One-pot synthesis of 2-aminothiazoles in PEG-400

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chinese chemical Letters 2010年第4期21卷 412-416页

作者： Dhanaji V.Jawale dinesh L.Lingampalle Umesh R.Pratap Ramrao A.Mane Department of chemistry Dr.Babasaheb Ambedkar Marathwada UniversityAurangabad(MS)431 004India

A facile one-pot synthesis of 2-aminothiazoles has been carried in PEG-400 as a greener medium at room *** method avoids the use of lachrymatric a-bromoketones as well as the volatile,toxic organic solvents.

关键词： One-pot synthesis 2-Aminothiazoles Polyethylene glycol-400 N-Bromosuccinimide

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