报告时间：2018年11月14日（星期三）18:30

报告地点：生物楼310

主讲人及主要内容：

（一）报告题目：Mitotic chromosome doubling of plant tissues in vitro

报告人：曾青青 林木遗传育种博士研究生

报告内容：In vitro chromosome doubling can be induced by several antimitotic agents. The most commonly used are colchicine, oryzalin and trifluralin. The process of induced chromosome doubling in vitro consists of a typical succession of sub-processes, including an induction phase and a confirmation protocol to measure the rate of success. The induction step depends on a large number of variables:antimitotic agents, explant types, exposure times and concentrations. Flow cytometry is the pre-eminent method for evaluation of the induced polyploidization. However, alternative confirmation methods, such as chromosome counts and morphological observations, are also used. Since polyploidization has many consequences for plant growth and development, chromosome doubling has been intensively studied over the years and has found its way to several applications in plant breeding. This review gives an overview of the common methods of chromosome doubling in vitro, the history of the technique, and progress made over the years. The applications of chromosome doubling in a broader context are also discussed.

（二）报告题目：抗氧化活性肽的分离纯化研究

报告人：冯艳霞 森林生物资源利用博士研究生

报告内容：多肽作为一种高活性物质已被应用到食品、医药、化妆品等领域，如何从食物中获取活性肽是近年来研究热点，本次报告将以抗氧化肽为例，介绍如何从食物中分离纯化活性肽。

（三）报告题目：黑果腺肋花楸多酚对高脂饮食诱导脂代谢紊乱大鼠干预机理研究

报告人：朱月 森林生物资源利用博士研究生

报告内容：黑果腺肋花楸果实含有丰富的花青素、黄酮、多酚、维生素和矿物质等营养和药用成分，其中多酚类物质是已知植物中含量最高的，对黑果腺肋花楸的功能起着至关重要的作用。有研究表明黑果腺肋花楸对脂代谢紊乱疾病具有一定的治疗作用，但机理尚不明确。本次汇报拟从肠道微生物为出发点，探索黑果腺肋花楸多酚通过调节肠道微生物的组成和丰度从而改善脂代谢紊乱大鼠肝脏和脂肪细胞脂类代谢相关通路，并且探索黑果腺肋花楸多酚中重要的功能性物质—原花青素的提取、分离及结构鉴定，为黑果腺肋花楸多酚物质进一步开发利用提供一定的理论依据。