李毅，男，1961年10月出生，理學(xué)博士，現(xiàn)為北京大學(xué)生命科學(xué)學(xué)院生物技術(shù)系副主任、教授、博士生導(dǎo)師。
研究領(lǐng)域：(1)Focusing on the interactions bewteen rice dwarf virusmovement protein (MP) and cytoskeleton proteins (including actin andmicrotube proteins) and plasmodesmata in the aspects of molecular biology and cell biology; Functional mapping of RDV MP and studying the MP mutantson the effects on virus cell-to-cell movement and mediated resistance against virus infections in transgenic plants; Cloning the host factor(s)involving in virus cell-to-cell movement and virus replication.
(2)研究調(diào)節(jié)病毒復(fù)制的細(xì)胞調(diào)節(jié)因子。
(3)植物基因工程
科研課題：(1).轉(zhuǎn)基因植物外源和內(nèi)源基因共抑制(cosuppression)問(wèn)題的研究，國(guó)家自然科學(xué)基金項(xiàng)目,1997.1-1999.12.
(2).TMV外殼蛋白突變體對(duì)病毒粒子組裝和突變體外殼蛋白介導(dǎo)抗性的研究，國(guó)家科委863項(xiàng)目,1996.1 - 2000.12.
(3).花卉花色基因工程育種，北大-云南合作項(xiàng)目，1998-2000.
(4).花卉花期基因調(diào)控研究，深圳市科技局資助項(xiàng)目，1996-2000.
(5).水稻矮縮病毒(RDV)細(xì)胞間運(yùn)動(dòng)蛋白的作用機(jī)理研究，國(guó)家自然科學(xué)基金項(xiàng)目，1998.1-2000.12，.
(6).玉米矮縮病毒基因的克隆和轉(zhuǎn)化，科技部轉(zhuǎn)基因?qū)ｍ?xiàng)計(jì)劃，1999-2001。
(7).Molecular Biology and cell biology of rice dwarf virus movementprotein, Rockefeller Foundation grant. 1999-2001.
代表性論文：迄今，已在國(guó)內(nèi)外專業(yè)學(xué)術(shù)刊物上發(fā)表論文60多篇，出版專著一本。近期發(fā)表文章：
Xu, H., Li, Y. (1998): The rice dwarf phytoreovirus segment S11 encodes a nucleic acid-binding protein. Virology, 240: 267-272.Mao, Z., Li, Y. (1998): The 42K protein of rice dwarf phytoreovirus is a postcleavage product of the 46K outer capsid protein encoded by genome segment S8. Archives of Virology 143:1831-1838.
Zhang, F., Li, Y. (1997): Molecular cloning and functional analysis of major core protein gene (S3) of rice dwarf virus Chinese isolate. Acta Virologica 41: 161-168.
Zheng, H., Li, Y. (1997): Recovery of transgenic rice plants expressing rice dwarf virus outer coat protein gene (S8).
Theoretical and Applied Genetics 94: 522-527.
Li, Y., Wei, C.H. (1996): Immunodetection of beet necrotic yellow vein virus RNA3 encoded protein in different host plants and tissues. Acta Virologica 40: 67-72.
