Results 221 to 230 of about 30,699 (254)
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Inhibitors of Photosynthetic Enzymes/Carriers and Metabolism
Annual Review of Plant Physiology and Plant Molecular Biology, 1994CONTENTS INTRODUCTION .. . . . . ....... . . . . . . . . . . ... . . . . . ........ . . .. . . . . .... ..... . . . . . . . . . . .. 339 PRIMARY TARGETS FOR INHIBITORS DURING PHOTOSYNTHESIS . . . . . . . . . . . . . . . . . . . . . . . . . 340 Light Reactions ....... ... 340 C3 Cycle 343 C4 Cycle , . . . . . . . . . . . . . . . . . . ..
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Inhibition of Nitrite Reduction with Photosynthetic Inhibitors
Weed Science, 1975Using a modified in vivo nitrate reductase assay, all photosynthetic inhibitors tested were shown to effectively block light-dependent nitrite reduction in green leaf tissue. Nitrate reduction continued so that nitrite accumulated. Nitrite, vacuum infiltrated into leaf tissue, disappeared linearly with time when incubated in the light.
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Friedelane Triterpenes from Celastrus vulcanicola as Photosynthetic Inhibitors
Journal of Agricultural and Food Chemistry, 2010Five friedelane triterpenoids, epifriedelinol (1), friedelin (2), canophyllol (3), pulpononic acid (4) and 3-oxo-29-hydroxyfriedelane (5), were isolated from Celastrus vulcanicola (Celastraceae), and were identified by spectroscopic methods, comparison with authentic samples and reported data.
David, Torres-Romero +5 more
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Inhibitors in the functional dissection of the photosynthetic electron transport system
Photosynthesis Research, 2007The significance of inhibitors and artificial electron acceptor and donor systems as experimental tools for studying the photosynthetic system is described by reviewing early classical articles. The historical development in unravelling the role and sequence of electron carriers and energy conserving sites in the electron transport chain is ...
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Synthesis of Rubrolide Analogues as New Inhibitors of the Photosynthetic Electron Transport Chain
Journal of Agricultural and Food Chemistry, 2012Many natural products have been used as a model for the development of new drugs and agrochemicals. Following this strategy 11 rubrolide analogues, bearing electron-withdrawing and -donating groups at both benzene rings, were prepared starting from commercially available mucobromic acid.
Barbosa L. C. A. +6 more
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Photosynthesis Research, 1988
Phosphoenolpyruvate carboxylase from leaves of the C4 plant Setaria verticillata (L.) Beauv. is activated by light; day levels of activity are reached after 30 minutes of illumination. Photoactivation is prevented by inhibitors of photosynthetic electron flow or of photophosphorylation and by D,L-glyceraldehyde, which inhibits the reductive pentose ...
Y, Samaras, Y, Manetas, N A, Gavalas
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Phosphoenolpyruvate carboxylase from leaves of the C4 plant Setaria verticillata (L.) Beauv. is activated by light; day levels of activity are reached after 30 minutes of illumination. Photoactivation is prevented by inhibitors of photosynthetic electron flow or of photophosphorylation and by D,L-glyceraldehyde, which inhibits the reductive pentose ...
Y, Samaras, Y, Manetas, N A, Gavalas
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Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1977
The binding of radioactively labelled atrazin, metribuzin and phenmedipham by broken chloroplasts was studied. From the double-reciprocal plots (bound vs. free inhibitors) a high affinity binding reaction is graphically isolated which is related to the inhibition of photosynthetic electron transport.
W, Tischer, H, Strotmann
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The binding of radioactively labelled atrazin, metribuzin and phenmedipham by broken chloroplasts was studied. From the double-reciprocal plots (bound vs. free inhibitors) a high affinity binding reaction is graphically isolated which is related to the inhibition of photosynthetic electron transport.
W, Tischer, H, Strotmann
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Replacement of photosynthetic electron transport inhibitors by silicomolybdate
Physiologia Plantarum, 1982KCN‐treated spinach chloroplasts, their photosystem I being ineffective, exhibit a single reaction site for silicomolybdate. Using this heteropolyanion as electron acceptor, photosynthetic oxygen evolution is partially inhibited by ureas, triazines, or phenylpyridazinone herbicides, their inhibitory effect depending on the concentration of ...
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Journal of Photochemistry and Photobiology B: Biology, 2013
In a search of new efficient herbicides of natural origin, four derivatives were prepared from labdane-8α,15-diol (1) and 15-O-acetyl-8α-hydroxy labdane (2) isolated from Croton ciliatoglanduliferus. Their inhibitory activity on photosynthetic electron transport on fresh, broken spinach chloroplasts and on the growth of plants were determined ...
Félix, Morales-Flores +3 more
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In a search of new efficient herbicides of natural origin, four derivatives were prepared from labdane-8α,15-diol (1) and 15-O-acetyl-8α-hydroxy labdane (2) isolated from Croton ciliatoglanduliferus. Their inhibitory activity on photosynthetic electron transport on fresh, broken spinach chloroplasts and on the growth of plants were determined ...
Félix, Morales-Flores +3 more
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Influence of photosynthetic inhibitors on peach
2020Several photosynthetic inhibitors were screened for relative photosynthetic reduction on leaves of greenhouse-grown peach trees. The most effective were 8% Vapor Gard, 10M diurcn, 10⁻³M ABA, and 10⁻³M terbacil, all of which reduced net photosynthesis (Pn) rates by 50% or more by 1 day after treatment without causing excessive phytotoxicity.
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