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  • 1
    Keywords: Life sciences ; Food science ; Agriculture ; Biochemistry ; Climatic changes ; Life sciences ; Agriculture ; Plant Biochemistry ; Protein Science ; Climate Change ; Food science ; Springer eBooks
    Description / Table of Contents: Section A: Introductory chapter -- 1. Nutritive value of maize: Improvements, applications and constraints -- Section B: Protein quality of maize -- 2 Breeding challenges and perspectives in developing and promoting quality protein maize germplasm -- 3 Maize protein quality and its improvement- development of quality protein maize (QPM) in India -- 4 Molecular interventions for enhancing the protein quality of maize -- Section C: Nutritional quality of maize -- 5 Maize: Grain structure, composition, milling and starch characteristics -- 6 Oil improvement in maize: potential and prospects -- 7.Maize carotenoid composition and biofortification for provitamin a activity -- Section D: Biotic and abiotic stresses in maize -- 8 Insect pests and their management: current status and future need of research in quality maize -- 9. Physiological response of maize under rising atmospheric CO2 and temperature -- Section E: Value addition in maize -- 10 Maize utilization in food bioprocessing: An overview -- 11 Maize malting: Retrospect and prospect -- 12. Value addition in maize -- 13. Fodder quality of maize: its preservation
    Abstract: Maize is a globally important crop mainly utilized as feed, food and raw material for diverse industrial applications. Among cereals, it occupies third place after rice and wheat and is a staple food for a large segment of population worldwide particularly in the Asian as well as African countries. This monogram discusses various aspects of nutritional quality of maize such as quality protein maize which has been considered as most significant discovery in enhancing nutritional quality of cereals in terms of increasing the concentration of essential amino acids. The biochemistry of starch which is an important industrial product of maize has been discussed in detail. Further, the role of maize oil which is highly regarded for human consumption as it reduces the blood cholesterol concentration has also been elaborated. Naturally, maize is a rich source of carotenoids such as beta-carotene, zeaxanthin, lutein, cryptoxanthin which have highly diverse health benefits ranging from maintaining normal vision to lowering of oxidative stress. The need for biofortification of maize for provitamin A carotenoids and their role in alleviating vision impairments have also been discussed. The effect of various biotic and abiotic stresses particularly carbon dioxide and temperature on quality has been discussed thoroughly. Many value-added products as well as fermented foods that have been produced from maize which is consumed in different forms worldwide are also discussed. The aspects related to the maize application as fodder and as a source of malting have also been covered concisely. Overall, the book provides complete information about various quality aspects of maize. The various stakeholders such as maize researchers, extension specialists, students, teachers as well as farmers will be immensely benefitted from this monogram
    Pages: X, 161 p. 27 illus., 17 illus. in color. : online resource.
    ISBN: 9788132216230
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  • 2
    Keywords: Botany ; Plant Sciences ; Springer eBooks
    Description / Table of Contents: Repurposing macromolecule delivery tools for plant genetic modification in the era of precision genome engineering -- The use of an automated platform to assemble multigenic constructs for plant transformation -- Ensifer-mediated transformation (emt) of rice (monocot) and oilseed rape (dicot) -- Setaria viridis as a model plant for functional genomic studies in C4 crops -- Transient transformation using particle bombardment for gene expression analysis -- Maize transformation using the morphogenic genes babyboom and wuschel2 -- Efficient and fast production of transgenic rice plants by agrobacterium-mediated transformation -- Protocol for Agrobacterium-mediated transformation and transgenic plant production of switchgrass -- Biolistic transformation of wheat -- Mesophyll protoplasts and PEG-mediated transfections: Transient assays and generation of stable transgenic canola plants -- A Unified Agrobacterium-mediated transformation protocol for alfalfa (Medicago sativa l.) and medicago truncatula -- Poplar transformation -- The genetic transformation of sweet orange (Citrus sinensis L. Osbeck) for enhanced resistance to citrus canker -- Genetic modification of grapevine embryogenic culture -- Agrobacterium-mediated transformation of Solanum tuberosum L., potato -- Agrobacterium tumefaciens-mediated transformation of tomato -- DNA break repair in plants and its application for genome engineering -- Gene stacking in plants through the application of site-specific recombination and nuclease activity -- CRISPR/Cas9 for mutagenesis in rice -- Plant biotechnology applications of zinc fingers technology -- Overview of biotechnology-derived herbicide tolerance and insect resistance traits in plant agriculture -- Developing transgenic agronomic traits for crops: targets, methods and challenges -- Transgenic and genome editing approaches for modifying plant oils -- Summary of molecular analysis methods for characterizing transgenic events -- Detection of transgenic proteins by immunoassays -- Systematic evaluation of field crop performance using modern phenotyping tools and techniques
    Abstract: This book provides thorough coverage of transgenic plants with methods on plant transformation, biotechnological application of transgenic plants, and future developments. Chapters are grouped into sections focusing on transformation model and crop plants, genome engineering, and transgenic event characterization. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Transgenic Plants: Methods and Protocols aims to broaden the utility for readers, provide additional references for further understanding, and present the technology’s potential for solving some of our most urgent global challenges in food security
    Pages: XIV, 444 p. 77 illus., 73 illus. in color. : online resource.
    ISBN: 9781493987788
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  • 3
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1573-5044
    Keywords: Albizia procera ; BA ; leaf explant ; Phytagel ; shoot bud regeneration ; root initiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Shoot bud regeneration was obtained from isolated leaflets of Albizia procera cultured on MS medium with various concentrations of 6-benzyladenine (BA) and α-naphthaleneacetic acid (NAA). The highest numbers of adventitious buds were obtained on MS medium supplemented with 10 μM BA and 1 μM NAA. The replacement of 7 g l-1 Difco bacto agar with 2.6 g l-1 Phytagel in the medium enhanced adventitious bud regeneration. Further, addition of 15 μM silver nitrate promoted callus-free shoot regeneration from leaf explants. The regenerated shoot buds were elongated on MS medium containing 0.01 μM BA and 1 μM NAA. Rooting was obtained on modified MS medium supplemented with 2 μM IBA. To our knowledge this is the first report of direct regeneration of shoots from leaflet explants in A. procera, and should help facilitate genetic transformation in this species.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-5044
    Keywords: Kaempferia galanga ; in vitro ; plantlet production
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A rapid clonal propagation system for Kaempferia galanga (Zingiberaceae), a rare folk medicinal herb has been developed. Various concentrations of 6-benzyladenine (BA) and a range of auxins have been investigated for in vitro plantlet production, using rhizomes as explants. In vitro plantlet production has been achieved on 0.75 × Murashige and Skoog (MS) medium supplemented with 12 μM BA, 3 μM ∝-naphthaleneacetic acid (NAA) and 3% sucrose. The procedure ensures 13-fold rate of plantlet production every 4 weeks. Hardened plantlets produced normal storage roots as the parent plants. Around 1,000 plantlets have been produced successfully for field transfer.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-9368
    Keywords: Ac ; Agrobacterium ; aspen ; Populus ; transformation ; transposition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Aspen (Populus tremula) and hybrid aspen (P. tremula × P. tremuloides) were transformed with different gene constructs using two types of promoter. The aim was to determine the influence of the reporter gene rolC, controlled by promoters of viral or plant origin, on genetic and morphologic expression of different transgenic aspen clones. An improved transformation method using leaf discs was developed, by which putative transgenic plantlets were regenerated at high efficiencies (up to 34%) on kanamycin-containing medium. Transgenic aspen carrying the rolC gene from Agrobacterium rhizogenes under control of the cauliflower-35S-promoter are reduced in size with smaller leaves, whereas aspen transgenic for the same rolC gene, but under control of the light inducible rbcS promoter from potato, are only slightly reduced in size compared to untransformed controls. However, all clones carrying 35S-rolC and rbcS-rolC genes revealed light-green colouration of leaves when compared to untransformed aspen. Owing to this special feature, constructs were used in which expression of the rolC gene was inhibited by insertion of a transposable element, Ac, from maize. Transgenic aspen transformed with the 35S-Ac-rolC and rbcS-Ac-rolC genes were morphologically similar to untransformed aspen, but out of 54 independently regenerated 35S-Ac-rolC transgenic aspen clones, 30 clones showed light-green/dark green variegated leaves. In contrast, out of 19 independently transformed rbcS-Ac-rolC aspen clones, only two clones revealed light-green/dark green variegated leaves. The role of bacterial strains in transformation, and molecular genetics of transgenic aspen plants (including the function of the transposable element, Ac, in the aspen genome) are discussed
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'expérience de 3 équipes de pays non occidentaux (Hong Kong, Inde, et Niger du Nord) avec des maladies bénignes du sein a été analysée. On a trouvé peu de similitudes, mais aussi des différences par rapport aux pays occidentaux. C'est surtout pour ces dernières, qui sont les plus intéressantes, qu'on manque d'explications. Dans les 3 pays, on voit fréquemment des fibroadénomes et des patientes avec une “fibroadénose,” mais la fréquence des tumeurs phyllodes varie parmi les différents centres de l'Inde, ainsi que parmi les groupes de races différentes dans ce pays. La tuberculose est un autre exemple. De grandes variations de l'incidence des infections du sein sont retrouvées alors que la tuberculose est fréquente dans les 3 pays. La valeur des études prospectives a été démontrée par une étude sur les mastalgies en Inde. Les auteurs ont étudié 112 cas de mastalgie, souvent considérée comme une maladie “occidentale.” Ils ont trouvé qu'elle était deux fois plus fréquente que le cancer. Ces expériences entre populations différntes n'ont pas été explorées en totalité et pourraient éclaircir un jour quelques unes des énigmes qui entourent les maladies bénignes du sein dans tous les pays du monde.
    Abstract: Resumen Se analizó la experiencia con enfermedades mamarias benignas en 3 poblaciones no occidentales: Hong Kong, India, y Nigeria Septentrional. Se hallaron similitudes y también diferencias con relación a la experiencia occidental; pero de mucho interés son algunas notorias diferencias entre estas poblaciones para las cuales no existe explicación. Todas exhibieron “adenosis” y fibroadenoma como entidades comunes, pero la frecuencia en el diagnóstico de tumores filodes varía en diferentes centros en la India, así como en los diferentes grupos raciales. La tuberculosis constituye otro ejemplo de interés; se encuentran grandes variaciones en la incidencia de infección mamaria, aunque la tuberculosis es común en las 3 naciones. La utilidad de los estudios prospectivos fue demostrada cuando se estudió la mastalgia en esta forma en la India. Frecuentemente considerada como una entidad nosológica “occidental,” los autores pudieron estudiar 112 casos de mastalgia y encontraron que es 2 veces más común que el cáncer como forma de presentación. Estas diferencias entre poblaciones han sido escasamente investigadas y son promisorias en cuanto a clarificar algunos de los enigmas de las enfermedades mamarias benignas prevalentes en todos los países.
    Notes: Abstract Experience with benign breast disorders has been analyzed in 3 nonwestern populations: Hong Kong, India, and Northern Nigeria. Similarities to and differences from Western experience are found, but of great interest are notable differences between these populations which, as yet, lack explanation. All show “fibroadenosis” and fibroadenoma as common conditions, but the frequency with which phyllodes tumor is diagnosed varies between different centers in India as well as between different racial groups. Tuberculosis is another interesting example—wide differences in the frequency of breast infection are found although tuberculosis itself is common in all 3 countries. The value of prospective studies was shown when mastalgia was studied in this way in India. Often considered a “Western” affliction, these authors have been able to study 112 cases of mastalgia and found it to be twice as common as cancer as a presentation. These differing experiences between populations have been little explored and must hold promise for unravelling some of the enigmas of benign breast disorders in all countries.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0935-9648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 0887-3585
    Keywords: α-helix ; sequence ; structure ; database ; amino acid ; secondary structure ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: An analysis of the amino acid distributions at 15 positions, viz., N“, N′, Ncap, N1, N2, N3, N4, Mid, C4, C3, C2, C1, Ccap, C′, and C” in 1,131 α-helices reveals that each position has its own unique characteristics. In general, natural helix sequences optimize by identifying the residues to be avoided at a given position and minimizing the occurrence of these avoided residues rather than by maximizing the preferred residues at various positions. Ncap is most selective in its choice of residues, with six amino acids (S, D, T, N, G, and P) being preferred at this position and another 11 (V, I, F, A, K, L, Y, R, E, M, and Q) being strongly avoided. Ser, Asp, and Thr are all more preferred at Ncap position than Asn, whose role at helix N-terminus has been highlighted by earlier analyses. Furthermore, Asn is also found to be almost equally preferred at helix C-terminus and a novel structural motif is identified, involving a hydrogen bond formed by Nδ2 of Asn at Ccap or C1 position, with the backbone carbonyl oxygen four residues inside the helix. His also forms a similar motif at the C-terminus. Pro is the most avoided residue in the main body (N4 to C4 positions) and at C-ter-minus, including Ccap of an α-helix. In 1,131 α-helices, no helix contains Pro at C3 or C2 positions. However, Pro is highly favoured at N1 and C′. The doublet X-Pro, with Pro at C′ position and extended backbone conformation for the X residue at Ccap, appears to be a common structural motif for termination of α-helices, in addition to the Schellman motif. Main body of the helix shows a high preference for aliphatic residues Ala, Leu, Val, and Ile, while these are avoided at helix termini. A propensity scale for amino acids to occur in the middle of helices has been obtained. Comparison of this scale with several previously reported scales shows that this scale correlates best with the experimentally determined values. Proteins 31:460-476, 1998. © 1998 Wiley-Liss, Inc.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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