Eastmond P J, Graham I A
Centre for Novel Agricultural Products, Dept of Biology, University of York, YO10 5DD, York, UK.
Trends Plant Sci. 2001 Feb;6(2):72-8. doi: 10.1016/s1360-1385(00)01835-5.
Oil is the primary seed storage reserve in many higher plants. After germination, this reserve is mobilized in order to support growth during early seedling development. The glyoxylate cycle is instrumental in this metabolic process. It allows acetyl-CoA derived from the breakdown of storage lipids to be used for the synthesis of carbohydrate. Recently, Arabidopsis mutants have been isolated that lack key glyoxylate cycle enzymes. An isocitrate lyase mutant has provided the first opportunity to test the biochemical and physiological functions of the glyoxylate cycle in vivo in an oilseed species.
油脂是许多高等植物种子的主要储存储备。种子萌发后，这种储备被调动起来以支持幼苗早期发育阶段的生长。乙醛酸循环在这一代谢过程中发挥着重要作用。它使储存脂质分解产生的乙酰辅酶A能够用于碳水化合物的合成。最近，已分离出缺乏关键乙醛酸循环酶的拟南芥突变体。异柠檬酸裂解酶突变体为在油料种子物种体内测试乙醛酸循环的生化和生理功能提供了首个机会。
