Výsledky vyhledávání - "J. M. Maldonado"

Influence of humic extracts on germination and growth of ryegrass

Autor: J. M. Maldonado, M.C.G. Asenjo, J.L. Gonzalez

Publikováno v: Communications in Soil Science and Plant Analysis. 31:101-114

The object of this work was to study the influence of humic extracts prepared from peat, sheep manure, and compost from municipal solid waste on germination and growth of ryegrass. Germination tests, using different concentrations of humic extracts,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9425b8fa2932c676643d4ea77183b956
https://doi.org/10.1080/00103620009370423

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Sunflower cytosolic-glutamine-synthetase genes showing similar organ-specificity patterns exhibit very different expression intensities by reverse-transcription polymerase chain reaction and Northern analysis

Autor: M. Montenegro, J. M. Maldonado, Rafael Pérez-Vicente

Publikováno v: Protoplasma. 207:154-157

Four genes coding for the cytosolic isoforms of glutamine synthetase (GS; EC 6.3.2.1) were recently identified in sunflower. The levels of transcripts from those genes have been analyzed in selected organs where ammonium is being produced by differen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfe59e5273a7c3c3282bce8f961a226c
https://doi.org/10.1007/bf01282995

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Quick Identification of the Members of the Glutamine Synthetase Gene Family from Sunflower by Simultaneous Amplification of cDNA with Degenerate Primers

Autor: R. Pérez-Vicente, J. M. Maldonado, M. Montenegro

Publikováno v: Biologia plantarum. 41:339-355

A single degenerate glutamine synthetase (GS)-specific primer was used to amplify the 3′ end of cDNAs derived from different GS genes that are expressed in leaves and roots of sunflower (Helianthus annuus L. cv. Peredovic). Four types of GS cDNA (I

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75673288e7843965de5327f9dd760b7d
https://doi.org/10.1023/a:1001825706687

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Induction of nitrate reductase, nitrite reductase, and glutamine synthetase isoforms in sunflower cotyledons as affected by nitrate, light, and plastid integrity

Autor: J. M. Maldonado, Agustín González-Fontes, P. de la Haba, Purificación Cabello

Publikováno v: Protoplasma. 201:1-7

We investigated the inducibility of nitrate reductase (NR; EC 1.6.6.1), nitrite reductase (NiR; EC 1.7.7.1), and glutamine synthetase (GS; EC 6.3.1.2) isoforms in cotyledons of 7-day-old seedlings of sunflower (Helianthus annuus L.) in relation to li

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6c980213c06c4505365885ee0216d2f
https://doi.org/10.1007/bf01280705

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Rhythmic Variations of Ferredoxin-Glutamate Synthase Activity in Sunflower (Helianthus annuus) Leaves

Autor: P. de la Haba, J. M. Maldonado, M.E. Fernández-Conde

Publikováno v: Journal of Plant Physiology. 145:682-685

Summary Changes in the activity of ferredoxin-glutamate synthase (Fd-GOGAT; EC 1.4.7.1) in response to lightdark transitions were monitored in sunflower ( Helianthus annuus L. cv. Peredovic) leaves. Plants grown in a controlled environment with nitra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ecbd8ea7a4a15e267d9ec0a0eead0f5d
https://doi.org/10.1016/s0176-1617(11)81281-2

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Organic nitrogen content and nitrate and nitrite reductase activities in tritordeum and wheat grown under nitrate or ammonium

Autor: F. Barro, Agustín G. Fontes, J. M. Maldonado

Publikováno v: Plant and Soil. 135:251-256

Tritordeum is a fertile amphiploid derived from durum wheat (Triticum turgidum L. conv. durum) × a wild barley (Hordeum chilense Roem. et Schultz.). The organic nitrogen content of tritordeum grain (34 mg g-1 DW) was significantly higher than that o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a0b14d39793ce75ba9dc6193592f00c
https://doi.org/10.1007/bf00010913

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[Breastfeeding rates can be improved in primary care]

Autor: M, Monge Zamorano, S, Díaz Martín, M, Méndez Abad, J M, Maldonado Tiestos, C, Quintana Herrera

Publikováno v: Anales de pediatria (Barcelona, Spain : 2003). 68(6)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::0d8aa134e1e693656b2621d771634bac
https://pubmed.ncbi.nlm.nih.gov/18559213

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SIM.M.FF-S7: Final report on SIM/ANDIMET supplementary comparison for volume of liquids at 100 mL and 100 μL

Autor: S Trujillo, Abed Morales, J M Maldonado, L D Rodríguez, Manuel Salazar, D Cantero, P Solano, E Santalla, A Sica, Maria Vega

Publikováno v: Metrologia. 53:07014

A SIM/ANDIMET comparison for liquid volume using two 100 mL pycnometers and two 100 μL piston pipettes was performed between January 2012 and October 2013. The National Metrology Institute (NMI) of Bolivia was the coordinating laboratory and the Mex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6bbe2bf9387de9ef7aea573ba61df6fd
https://doi.org/10.1088/0026-1394/53/1a/07014

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Differential effects of ammonium and tungsten on nitrate and nitrite uptake and reduction by sunflower plants

Autor: Eloísa Agüera, J. M. Maldonado, Purificación de la Haba

Publikováno v: Plant Science. 70:21-26

Net NO 3 − uptake by intact sunflower plants ( Helianthus annuus L. cv Peredovic) was substantially decreased by the presence of NH 4 + in the external solution. The simultaneous addition of the glutamine synthetase (GS)-inhibitor methionine sulpho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13d4708323403ee44ee2fbccb7b85bb3
https://doi.org/10.1016/0168-9452(90)90027-l

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