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Similarities and differences in rubber biochemistry among plant species.
  • K. Cornish
  • Chemistry, Medicine
  • Phytochemistry
  • 1 August 2001
This report reviews aspects of the biochemical regulation of rubber yield and rubber quality in three contrasting rubber-producing species, Hevea brasiliensis, Parthenium argentatum and FicusExpand
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The Major Protein of Guayule Rubber Particles Is a Cytochrome P450
Guayule plants accumulate large quantities of rubber within parenchyma cells of their stembark tissues. This rubber is packed within discrete organelles called rubber particles composed primarily ofExpand
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Rubber particles from four different species, examined by transmission electron microscopy and electron-paramagnetic-resonance spin labeling, are found to consist of a homogeneous rubber core
Abstract. The physical characteristics of rubber particles from the four rubber (cis-1,4-polyisoprene) producing species Euphorbia lactiflua Phil., Ficus elastica Roxb., Hevea brasiliensis Müll.Expand
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The separate roles of plant cis and trans prenyl transferases in cis-1,4-polyisoprene biosynthesis.
  • K. Cornish
  • Chemistry, Medicine
  • European journal of biochemistry
  • 1 November 1993
In plants, the elongation of cis-1,4-polyisoprene (natural rubber, M(r) > 10(6) requires a small transallylic diphosphate (< or = C20) initiator. The trans-allylic diphosphates are hydrophilicExpand
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Purification and characterization of an abundant rubber particle protein from guayule
Abstract Guayule rubber particles, which have high rubber transferase (RuT) activity, contain several characteristic proteins. The most abundant of these was purified by preparative gelExpand
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Composition of rubber particles of Hevea brasiliensis, Parthenium argentatum, Ficus elastica, and Euphorbia lactiflua indicates unconventional surface structure
Natural rubber (cis-1,4-polyisoprene) is formed inside plant cells from allylic diphosphate initiators and isopentenyl diphosphate, and packaged in subcellular rubber particles. In addition toExpand
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Characterization of cis-prenyl transferase activity localised in a buoyant fraction of rubber particles from Ficus elastica latex
We investigated rubber biosynthesis in Ficus elastica, a latex-producing plant species. Rubber particles were purified and enzyme activity was assayed by following the incorporation of radiolabel,Expand
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Rubber transferase activity in rubber particles of guayule.
Abstract Rubber transferase (RuT) activity, measured as incorporation of radiolabelled isoprene from [ 14 C]isopentenyl pyrophosphate (IPP) into rubber, was assayed in suspensions of washed rubberExpand
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A protein from Ficus elastica rubber particles is related to proteins from Hevea brasiliensis and Parthenium argentatum
Abstract Rubber particles, having high rubber transferase (RuT) activity, were isolated from Ficus elastica latex. The predominant protein in these rubber particles is a large hydrophobicExpand
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