Results 171 to 180 of about 27,692 (204)

New aspects of rubber biosynthesis

Botanical Journal of the Linnean Society, 1987
New aspects of rubber biosynthesis. Following a review of the site of rubber biosynthesis in Hevea brasiliensis and Parthenium argentalum, evidence is given for the initiation of polyisoprene molecules from (ranMerpenoid precursors including geranylgeranyl pyrophosphate.
BERNARD L. ARCHER, BRAIN G. AUDLEY
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Stereochemistry of Rubber Biosynthesis

Rubber Chemistry and Technology, 1967
Abstract The stereochemistry of the formation of natural rubber and trans-trans-farnesyl pyrophosphate in latex has been studied in vitro using [2−14C−(4R)−3H1] and [2−14C−(4S)−4−3H1]mevalonates as substrates. The proton eliminated from C-2 of isopentenyl pyrophosphate during the formation of farnesyl pyrophosphate in latex has the same steric ...
B. L. Archer, D. Barnard, E. G. Cockbain, J. W. Cornforth, Rita H. Cornforth, G. Popják   +5 more
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The Biosynthesis of Natural Rubber

Journal of Plant Physiology, 1990
Summary The biosynthesis of natural rubber, Z-polyisoprene, is reviewed in the light of the recent elucidation of its detailed chemical structure. Natural rubber is homologous with a group of the polyprenols. The identity of the putative rubber transferase isolated from Hevea latex serum and guayule tissue as well as the published assay for rubber ...
J.C. Paterson-Jones, M.G. Gilliland, J. Van Staden   +2 more
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NATURAL RUBBER BIOSYNTHESIS: STILL A MYSTERY

Rubber Chemistry and Technology, 2018
ABSTRACT Currently, Hevea brasiliensis (the Brazilian rubber tree) is the only commercially available source of natural rubber (NR) for use in many products, which vary from tires to medical products such as adhesive bandages. H. brasiliensis NR is used in these products because after vulcanization, superior properties, which include elasticity,
Judit E. Puskas, Carin A. Helfer
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Regulation of Natural Rubber Biosynthesis by Proteins Associated with Rubber Particles

Russian Journal of Bioorganic Chemistry, 2018
Natural rubber, cis-1,4-polyisoprene, is an essential raw material used in thousands of products, many of which are absolutely necessary for medical purposes. Natural rubber is obtained from latex, an aqueous emulsion present in the laticiferous vessels of the natural rubber-producing plants.
A. Yu. Amerik, Yu. Tc. Martirosyan, I. V. Gachok   +2 more
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Natural rubber biosynthesis in plants: rubber transferase.

Methods in enzymology, 2013
Rubber biosynthesis in plants is a fascinating biochemical system, which evolved at the dawn of the dicotyledoneae and is present in at least four of the dictolydonous superorders. Rubber biosynthesis is catalyzed by a membrane complex in a monolayer membrane envelope, requires two distinct substrates and a divalent cation cofactor, and produces a high-
Katrina, Cornish, Wenshuang, Xie
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A rubber transferase activator is necessary for natural rubber biosynthesis in dandelion

Nature Plants, 2015
High-molecular-mass natural rubber is a valuable plant-derived poly(cis-1,4-isoprene) with many industrial and medical applications. It is synthesized by a rubber cis-prenyltransferase (CPT) complex on the surface of rubber particles in specialized latex-producing cells known as laticifers.
Janina Epping, Nicole van Deenen, Eva Niephaus, Anna Stolze, Julia Fricke, Claudia Huber, Wolfgang Eisenreich, Richard M. Twyman, Dirk Prüfer, Christian Schulze Gronover   +9 more
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Genomics of Rubber Biosynthesis in Hevea brasiliensis

2020
The Hevea brasiliensis rubber tree is the largest commercial producer of natural rubber. The ability to synthesize a naturally occurring polymer is one of the main attractions of studying latex rubber biosynthesis. Natural rubber consists of high molecular weight cis-polyisoprene, a branch product of the isoprenoid network, which is synthesized by ...
Chow, Keng-See, Bahari, Azlina, Taylor, Mark A, Marshall, David   +3 more
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A Mathematical Model of Rubber Biosynthesis

Computational Mathematics and Modeling, 2005
A mathematical model is developed for the biosynthesis of rubber in plants. The model computes the steady-state concentrations of end products and intermediate metabolites that are present in the metabolic pathway of rubber biosynthesis. A number of different reactions occurring in the rubber-biosynthesis metabolic pathway are examined: an irreversible
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The stereochemistry of rubber biosynthesis

Proceedings of the Royal Society of London. Series B. Biological Sciences, 1966
The stereochemistry of the formation of natural rubber and trans-trans -farnesyl pyrophosphate in latex has been studied in vitro using [2- 14 C-(4 R )-4- 3 H 1 ] and [2- 14
openaire   +1 more source