Recent advances in the molecular genetics of resin biosynthesis and genetic engineering strategies to improve defenses in conifers

编号 zgly0000303663

文献类型 期刊论文

文献题名 Recent advances in the molecular genetics of resin biosynthesis and genetic engineering strategies to improve defenses in conifers

学科分类 220.30;森林保护学

作者 TANGWei 

作者单位 ForestBiotechnologyGroup 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2003,14(2)

页码 171-179

年份 2003 

分类号 S763  S188 

关键词 树脂  生物合成  分子遗传  针叶树  甲虫  真菌病原体  防御能力  基因组  合成酶  遗传工程策略 

文摘内容 Since the first terpenoid synthase cDNA was obtained by the reverse genetic approach from grand fir, great pro-gress in the molecular genetics of terpenoid formation has been made with angiosperms and genes encoding a monoterpene synthase, a sesquiterpene synthase, and a diterpene synthase. Tree killing bark beetles and their vectored fungal pathogens are the most destructive agents of conifer forests worldwide. Conifers defend against attack by the constitutive and inducible production of oleoresin that accumulates at the wound site to kill invaders and both flush and seal the injury. Although toxic to the bark beetle and fungal pathogen, oleoresin also plays a central role in the chemical ecology of these boring insects. Re-cent advances in the molecular genetics of terpenoid biosynthesis provide evidence for the evolutionary origins of oleoresin and permit consideration of genetic engineering strategies to improve conifer defenses as a component of modern forest bio-technology. This review described enzymes of resin biosynthesis, structural feathers of genes genomic intron and exon or-ganization, pathway organization and evolution, resin production and accumulation, interactions between conifer and bark beetle, and engineering strategies to improve conifer defenses。