Results 151 to 160 of about 842,300 (197)

A Rapid Bioassay for Photosynthetic and Respiratory Inhibitors

Weed Science, 1971
A bioassay for photosynthetic and respiratory inhibitors was devised. The chlorophyll production ofChlorella pyrenoidosaSorokin, high temperature strain 7-11-05, served as the basis of the bioassay which required 18 to 36 hr to complete. The sensitivity to nine photosynthetic and two respiratory inhibitors ranged from 0.013 to 0.4 ppm. The bioassay was
B. A. Kratky, G. F. Warren
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Sesquiterpenes from Celastrus vulcanicola as Photosynthetic Inhibitors

Journal of Natural Products, 2008
Three new sesquiterpenoids (1- 3) with a dihydro-beta-agarofuran skeleton were isolated from Celastrus vulcanicola. Their structures were elucidated on the basis of spectroscopic analysis, including homonuclear and heteronuclear correlation NMR experiments (COSY, ROESY, HSQC, and HMBC), and the absolute configurations were determined by circular ...
David, Torres-Romero, Beatriz, King-Díaz, Ignacio A, Jiménez, Blas, Lotina-Hennsen, Isabel L, Bazzocchi   +4 more
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Synthesis of Pyrazole Derivatives and Their Evaluation as Photosynthetic Electron Transport Inhibitors

Journal of Agricultural and Food Chemistry, 2004
Two series of new pyrazoles, namely six pyrazolo[1,5-a][1,3,5]triazine-2,4-dione and four pyrazolo[1,5-c][1,3,5]thiadiazine-2-one derivatives, were synthesized as potential inhibitors of the photosynthetic electron transport chain at the photosystem II level. The compounds were confirmed by 1H NMR, elemental, and IR analyses.
VICENTINI, Chiara Beatrice, MARES, Donatella, TARTARI, Alfredo, MANFRINI, Maurizio, FORLANI, Giuseppe   +4 more
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The crystal structure of the photosynthetic inhibitors DCMU and DTPU

Biopolymers, 1986
AbstractX‐ray diffraction studies have been carried out on a single crystal of the photosynthetic inhibitors N‐(3,4‐dichlorophenyl)‐N′‐dimethylurea (DCMU) and its newly synthesized spin‐labeled analog N‐(3,4‐dichlorophenyl)‐N′‐(3,3,5,5‐tetramethylpiperidine‐4‐oxyl)‐urea (DTPU).
Chaim Gilon, Shmuel Cohen, Yona Siderer
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Inhibition of Nitrite Reduction with Photosynthetic Inhibitors

Weed Science, 1975
Using 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, 2010
Five 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, Beatriz, King-Díaz, Reto J, Strasser, Ignacio A, Jiménez, Blas, Lotina-Hennsen, Isabel L, Bazzocchi   +5 more
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Inhibitors in the functional dissection of the photosynthetic electron transport system

Photosynthesis Research, 2007
The 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, 2012
Many 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., Maltha C. R. A., Lage M. R., Barcelos R. C., Donà A., Carneiro J. W. M., FORLANI, Giuseppe   +6 more
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Inhibitors of Photosynthetic Enzymes/Carriers and Metabolism

Annual Review of Plant Physiology and Plant Molecular Biology, 1994
CONTENTS INTRODUCTION .. . . . . ....... . . . . . . . . . . ... . . . . . ........ . . .. . . . . .... ..... . . . . . . . . . . .. 339 PRIMARY TARGETS FOR INHIBITORS DURING PHOTOSYNTHESIS . . . . . . . . . . . . . . . . . . . . . . . . . 340 Light Reactions ....... ... 340 C3 Cycle 343 C4 Cycle , . . . . . . . . . . . . . . . . . . ..
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Stigmatellin. A dual type inhibitor of photosynthetic electron transport

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1985
Abstract Stigmatellin, an antibiotic produced by the myxobacterium Stigmatella aurantiaca, is a powerful inhibitor of photosynthetic electron transport. In the photosynthetic electron-transport chain, it has two different inhibition sites. One is located at the reducing side of Photosystem II (I50 value, 52.5 nM) and identical to the inhibition site ...
Walter Oettmeier, Doris Godde, Brigitte Kunze, Gerhard Höfle   +3 more
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