Rubber biosynthesis
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Natural rubber is an economically important material. Currently the Pará rubber tree, Hevea brasiliensis is the main commercial source. Little is known about rubber biosynthesis at the molecular level. Next-generation sequencing (NGS) technologies brought draft genomes of three rubber cultivars and a variety of RNA sequencing (RNA-seq) data. However, no current genome or transcriptome databases (DB) are organized by gene.
7p vilarryellison 29-10-2021 10 0 Download
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Although the wound response of plants has been extensively studied, little is known of the rapid occlusion of wounded cell itself. The laticifer in rubber tree is a specific type of tissue for natural rubber biosynthesis and storage.
13p viharuno2711 24-04-2020 10 1 Download
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Natural rubber is currently produced nearly exclusively from latex of the Para rubber tree, Hevea brasiliensis. The desire to reduce the environmental cost of rubber production, fears of pathogen susceptibility in clonal Hevea plantations, volatility in the price of natural rubber.
10p viharuno2711 24-04-2020 38 0 Download
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Guayule (Parthenium argentatum Gray) is a drought tolerant, rubber producing perennial shrub native to northern Mexico and the US Southwest. Hevea brasiliensis, currently the world’s only source of natural rubber, is grown as a monoculture, leaving it vulnerable to both biotic and abiotic stressors. Isolation of rubber from guayule occurs by mechanical harvesting of the entire plant.
13p viharuno2711 21-04-2020 5 1 Download
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Sucrose (Suc), as the precursor molecule for rubber biosynthesis in Hevea brasiliensis, is transported via phloem-mediated long-distance transport from leaves to laticifers in trunk bark, where latex (cytoplasm of laticifers) is tapped for rubber.
11p viharuno2711 21-04-2020 9 0 Download
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Natural rubber fromHevea brasiliensisis a high molecular mass polymer of isoprene units withcis-configuration. The enzyme responsible for the cis-1,4-polymerization of iso-prene units has been identified as a particle-bound rubber transferase, but no gene encoding this enzyme has been cloned from rubber-producing plants. By using sequence information from the conserved regions of cis-prenyl chain elongating enzymes that were cloned recently, we have iso-lated and characterized cDNAs from H.
10p fptmusic 12-04-2013 40 1 Download