橡胶树排胶机理与调控研究进展

排胶是巴西橡胶树(Hevea brasiliensis Muell.Arg.)树皮乳管细胞中胶乳采收的重要环节,与天然橡胶的生物合成、胶乳再生、割胶技术、韧皮部膨压等众多因素相关,占生产成本的60％以上.近年来,天然橡胶异戊二烯途径合成与调控机制、胶乳诊断指标、乳管伤口堵塞和过度排胶导致的死皮发生和修复机理等领域均取得...

Research Progress on Mechanism and Regulation of Latex Flow in Hevea brasiliensis Muell. Arg.

Latex flow, one of the most important parts in the latex harvesting from laticifer cells of rubber tree’s bark, is related to natural rubber biosynthesis, latex regeneration, rubber tapping technology, phloem turgor pressure and many other factors, accounting for 60% of production costs. In recent years, important progress has been made in the synthesis and regulation mechanism of natural rubber (isoprene) biosynthesis pathway, latex diagnostic indexes, laticifer wound plugs mechanism and tapping panel dryness (TPD) occurrence and repair mechanism caused by excessive tapping. In this paper, we summarized the current situations including natural rubber biosynthesis and latex regeneration, laticifer wound plugs, factors influenced latex flow as well as physiological and molecular biological mechanisms of latex flow. Furthermore, combining with the continuous introduction of new technologies into the research field of rubber latex flow, the development trend and application of rubber tree latex flow mechanism were prospected, which provided theoretical basis for rubber tree latex flow mechanism research and guidance for the development of new efficient and safe stimulation technology.