Search Results - "Minchin, Frank R."

Response of Carbon Metabolism and Antioxidant Defenses of Alfalfa Nodules to Drought Stress and to the Subsequent Recovery of Plants by Naya, Loreto, Ladrera, Ruben, Ramos, Javier, González, Esther M, Arrese-Igor, Cesar, Minchin, Frank R, Becana, Manuel

“…Alfalfa (Medicago sativa) plants were exposed to drought to examine the involvement of carbon metabolism and oxidative stress in the decline of nitrogenase…”
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Sucrose synthase in legume nodules is essential for nitrogen fixation by Gordon, A.J, Minchin, F.R, James, C.L, Komina, O

“…The role of sucrose synthase (SS) in the fixation of N was examined in the rug4 mutant of pea (Pisum sativum L.) plants in which SS activity was severely…”
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Stress-induced legume root nodule senescence. Physiological, biochemical, and structural alterations by Matamoros, M.A, Baird, L.M, Escuredo, P.R, Dalton, D.A, Minchin, F.R, Iturbe-Ormaetxe, I, Rubio, M.C, Moran, J.F, Gordon, A.J, Becana, M

“…Nitrate-fed and dark-stressed bean (Phaseolus vulgaris) and pea (Pisum sativum) plants were used to study nodule senescence. In bean, 1 d of nitrate treatment…”
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Modification of the Lowry assay to measure proteins and phenols in covalently bound complexes by Winters, Ana L., Minchin, Frank R.

“…It is well established that phenols interfere with many routine protein assays and a number of protocols have been developed to overcome this. One such method…”
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Latent and Active Polyphenol Oxidase (PPO) in Red Clover (Trifolium pratense) and Use of a Low PPO Mutant To Study the Role of PPO in Proteolysis Reduction by Winters, Ana L, Minchin, Frank R, Michaelson-Yeates, Terry P. T, Lee, Michael R. F, Morris, Phillip

“…Polyphenol oxidase (PPO) activity in leaf extracts of wild type (WT) red clover and a mutant line expressing greatly reduced levels of PPO (LP red clover) has…”
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Red clover polyphenol oxidase: Activation, activity and efficacy under grazing by Lee, Michael R.F., Tweed, John K.S., Minchin, Frank R., Winters, Ana L.

“…This study investigated red clover polyphenol oxidase (PPO), its: activity, activation from latent into active form, and whether grazing at different levels of…”
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Plant-mediated lipolysis and proteolysis in red clover with different polyphenol oxidase activities by Lee, M.R.F, Winters, A.L, Scollan, N.D, Dewhurst, R.J, Theodorou, M.K, Minchin, F.R

“…Polyphenol oxidase (PPO) is an enzyme involved in the browning reaction of red clover leaves, when cut or crushed and exposed to air. PPO starts the browning…”
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Effects of water stress on antioxidant enzymes of leaves and nodules of transgenic alfalfa overexpressing superoxide dismutases by Rubio, Maria C., González, Esther M., Minchin, Frank R., Webb, K. Judith, Arrese-Igor, Cesar, Ramos, Javier, Becana, Manuel

“…The antioxidant composition and relative water stress tolerance of nodulated alfalfa plants (Medicago sativa L. × Sinorhizobium meliloti 102F78) of the elite…”
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Expression studies of superoxide dismutases in nodules and leaves of transgenic alfalfa reveal abundance of iron-containing isozymes, posttranslational regulation, and compensation of isozyme activities by RUBLO, Maria C, RAMOS, Javier, WEBB, K. Judith, MINCHIN, Frank R, GONZALEZ, Esther, ARRESE-IGOR, Cesar, BECANA, Manuel

“…The composition of antioxidant enzymes, especially superoxide dismutase (SOD), was studied in one nontransgenic and three transgenic lines of nodulated alfalfa…”
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Lipolysis in red clover with different polyphenol oxidase activities in the presence and absence of rumen fluid by Lee, M.R.F, Parfitt, L.J, Scollan, N.D, Minchin, F.R

“…This experiment aims to determine whether polyphenol oxidase (PPO) can reduce the extent of lipolysis and the consequent polyunsaturated fatty acid loss…”
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Polyphenol oxidase activity in grass and its effect on plant-mediated lipolysis and proteolysis of Dactylis glomerata (cocksfoot) in a simulated rumen environment by Lee, M.R.F, Colmenero, J. de J.O, Winters, A.L, Scollan, N.D, Minchin, F.R

“…Little is known about the level or activity of polyphenol oxidase (PPO) in grasses and its potential impact on proteolysis and lipolysis. Six grass species…”
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Stress-induced changes in protease composition are determined by nitrogen supply in non-nodulating white clover by Kingston-Smith, Alison H, Bollard, Andrea L, Minchin, Frank R

“…An inbreeding line of white clover has been identified which remains non-nodulated under appropriate physiological conditions and so the nitrogen concentration…”
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Stress-induced declines in soybean N2 fixation are related to nodule sucrose synthase activity by Gordon, A.J, Minchin, F.R, Skot, L, James, C.L

“…Soybean (Glycine max L.) plants were subjected to a number of treatments (drought, 10 mM nitrate, 150 mM NaCl, shoot meristem removal, and removal of…”
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Reversible O2 inhibition of nitrogenase activity in attached soybean nodules by Denison, R.F, Witty, J.F, Minchin, F.R

“…Various forms of stress result in decreased O2 permeability or decreased capacity to consume O2 in legume root nodules. These changes alter the nodule interior…”
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Polyphenols and their influence on gut function and health in ruminants: a review by Theodorou, Michael K., Kingston-Smith, Alison H., Winters, Ana L., Lee, Michael R. F., Minchin, Frank R., Morris, Phillip, MacRae, John

“…Polyphenols in plants can protect proteins from degradation and improve the efficiency of conversion of plant protein to animal protein (meat and milk), but…”
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N₂ Fixation, Carbon Metabolism, and Oxidative Damage in Nodules of Dark-Stressed Common Bean Plants by Yolanda Gogorcena, Anthony J. Gordon, Pedro R. Escuredo, Frank R. Minchin, John F. Witty, Jose F. Moran, Becana, Manuel

“…Common beans (Phaseolus vulgaris L.) were exposed to continuous darkness to induce nodule senescence, and several nodule parameters were investigated to…”
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A Simple Model of Feedback Regulation for Nitrate Uptake and N2 Fixation in Contrasting Phenotypes of White Clover by SOUSSANA, JEAN‐FRANÇOIS, MINCHIN, FRANK R., MACDUFF, JAMES H., RAISTRICK, NEIL, ABBERTON, MICHAEL T., MICHAELSON‐YEATES, TERRY P. T.

“…A simple three equation model is proposed for the feedback regulation of nitrate uptake and N2 fixation, based on the concentration of the organic N substrate…”
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Source of nitrogen nutrition (nitrogen fixation or nitrate assimilation) is a major factor involved in pea response to moderate water stress by Frechilla, Silvia, González, Esther M., Royuela, Mercedes, Minchin, Frank R., Aparicio-Tejo, Pedro M., Arrese-Igor, Cesar

“…The effect of the source of nitrogen nutrition (nitrogen fixation or nitrate assimilation) on the response of pea plants to a gradual and moderate water stress…”
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Involvement of activated oxygen in nitrate-induced senescence of pea root nodules by Escuredo, P.R. (Consejo Superior de Investigaciones Cientificas, Zaragoza, Spain.), Minchin, F.R, Gogorcena, Y, Iturbe-Ormaetxe, I, Klucas, R.V, Becana, M

“…The effect of short-term nitrate application (10 mM, 0-4 d) on nitrogenase (N2ase) activity, antioxidant defenses, and related parameters was investigated in…”
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Effects of manipulating the protein content of white clover on silage quality by Winters, Ana L., Minchin, Frank R., Davies, Zoe, Kingston-Smith, Alison H., Theodorou, Michael K., Griffith, Gareth W., Merry, Roger J.

“…White clover nitrogen N content is generally high and constant throughout the growing season. It is also difficult to manipulate, as N 2 fixation tends to…”
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