通过转δ-OAT基因获得抗盐抗旱水稻

被引:31
作者
吴亮其
范战民
郭蕾
李勇青
张文静
瞿礼嘉
陈章良
机构
[1] 北京大学蛋白质工程及植物基因工程国家重点实验室
[2] 北京大学蛋白质工程及植物基因工程国家重点实验室 北京
[3] 北京
[4] 北京
关键词
δ-OAT; 脯氨酸; 基因枪; 转基因水稻; 抗盐; 抗旱;
D O I
暂无
中图分类号
S511.6 [陆稻(旱稻)];
学科分类号
摘要
δ-OAT基因编码的鸟氨酸-δ-氨基转移酶是以鸟氨酸为前体合成脯氨酸途径中的关键酶。采用基因枪法将拟南芥δ-OAT基因导入粳稻品种中作321,通过PCR及分子杂交分析确定目的基因已插入水稻染色体中并得到超量表达。抗盐抗旱检测结果表明,水稻在受到渗透胁迫时会大量积累脯氨酸,各种条件下转基因水稻积累的脯氨酸是对照的5~15倍;同等胁迫条件下转基因株系相对生长更快,苗与根的生物学产量都要高于对照,最后种子产量也显著高于对照,如在0.1mol/L NaCl胁迫下转基因株系相对产量提高了16%~41%,说明δ-OAT基因超量表达并积累脯氨酸在抗渗透胁迫中有着重要作用,通过转化δ-OAT基因可以获得抗盐抗旱的基因工程水稻。
引用
收藏
页码:2050 / 2056
页数:7
相关论文
共 13 条
  • [1] ESTABLISHMENT OF AN EFFICIENT MEDIUM FOR ANTHER CULTURE OF RICE
    朱至清
    王敬驹
    孙敬三
    徐振
    尹光初
    朱之垠
    毕凤云
    [J]. Science China Mathematics, 1975, (05) : 659 - 668
  • [2] 植物分子生物学[M]. 施普林格出版社 , (英)[M.S.克拉克](MelodyS.Clark)主编, 1998
  • [3] Overexpression of ornithine-δ-aminotransferase increases proline biosynthesis and confers osmotolerance in transgenic plants
    Roosens, NH
    Al Bitar, F
    Loenders, K
    Angenon, G
    Jacobs, M
    [J]. MOLECULAR BREEDING, 2002, 9 (02) : 73 - 80
  • [4] The function of the nuclear matrix attachment region of silkworm rDNA as an autonomously replicating sequence in plasmid and chromosomal replication origin in yeast
    Chen, Y
    Zhao, MJ
    Li, ZP
    He, ML
    [J]. BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 2002, 299 (05) : 723 - 729
  • [5] Mechanisms of plant desiccation tolerance
    Hoekstra, FA
    Golovina, EA
    Buitink, J
    [J]. TRENDS IN PLANT SCIENCE, 2001, 6 (09) : 431 - 438
  • [6] Regulation of proline accumulation in detached rice leaves exposed to excess copper
    Chen, CT
    Chen, LM
    Lin, CC
    Kao, CH
    [J]. PLANT SCIENCE, 2001, 160 (02) : 283 - 290
  • [7] Tobacco matrix attachment region sequence increased transgene expression levels in rice plants
    Cheng, ZQ
    Targolli, J
    Wu, R
    [J]. MOLECULAR BREEDING, 2001, 7 (04) : 317 - 327
  • [8] The relation between accumulation of abscisic acid and proline in detached rice leaves
    Yang, CW
    Wang, JW
    Kao, CH
    [J]. BIOLOGIA PLANTARUM, 2000, 43 (02) : 301 - 304
  • [9] Genetic engineering of salt and drought tolerance with yeast regulatory genes[J] . Scientia Horticulturae . 1999 (1)
  • [10] Overexpression of a Δ1-pyrroline-5-carboxylate synthetase gene and analysis of tolerance to water- and salt-stress in transgenic rice
    Zhu, BC
    Su, J
    Chan, MC
    Verma, DPS
    Fan, YL
    Wu, R
    [J]. PLANT SCIENCE, 1998, 139 (01) : 41 - 48