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Potato Glycoalkaloids, Past Present and Future

机译：马铃薯糖生物碱的过去和现在

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摘要

The steroidal glycoalkaloids are naturally occurring specialty metabolites of questionable desirability in the vegetable crop, potato. Although glycoalkaloids undoubtedly originated under selection as feeding deterrents against herbivorous pests, theyno longer function as the primary feeding deterrent. Moreover, due to their potential toxicity, guidelines persist as to the maximal allowable concentrations for newly developed cultivars. The origins of the glycoalkaloids lie in the ancient relatives of the modern potato, which continue to be used in breeding programs because of the wealth of genetic diversity for performance, nutrition and disease resistance. In recent years, the genes encoding the enzymatic steps responsible for glycoalkaloid synthesis have begun to be elucidated. This in turn has presented the possibility of manipulating these genes to control glycoalkaloid accumulation and increase the availability of diverse biological resources for the development of new and improved cultivarswith enhanced agronomic, processing and nutritional characteristics. This article will di-ouss the origin and diversity of glycoalkaloids in the potato, why they are a concern and what is being done about them, and how the advancement of biological information and technologies will impact potato glycoalkaloids in the future.
机译：甾体类生物碱是蔬菜作物马铃薯中天然存在的特殊代谢产物，其可疑性令人怀疑。尽管糖基生物碱毫无疑问是作为对草食性害虫的摄食威慑性选择而起源的，但它们不再充当主要的摄食威慑力。此外，由于其潜在的毒性，关于新开发品种的最大允许浓度仍坚持指导原则。糖类生物碱的起源是现代马铃薯的古老亲缘种，由于其在性能，营养和抗病性方面的丰富遗传多样性，它们继续用于育种计划。近年来，已经开始阐明编码负责生物碱合成的酶促步骤的基因。反过来，这也提供了操纵这些基因来控制糖碱生物碱积累和增加多样化生物资源以开发具有增强的农艺，加工和营养特性的新品种和改良品种的可能性。本文将探讨马铃薯中生物碱的起源和多样性，为什么会引起关注，以及他们正在采取的措施，以及生物学信息和技术的进步将如何在未来影响马铃薯生物碱。

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