华北农学报 ›› 2008, Vol. 23 ›› Issue (2): 198-204. doi: 10.7668/hbnxb.2008.02.044

所属专题: 玉米

• 论文 • 上一篇    下一篇

低浓度玉米小斑病菌C小种毒素培养滤液诱导寄主抗性的研究

商闯1,2, 马春红2, 贾银锁2, 翟彩霞3, 李运朝2, 董文琦4, 崔四平2, 侯立白1   

  1. 1. 沈阳农业大学, 农学院, 辽宁, 沈阳, 110161;河北省农林科学院, 遗传生理研究所, 河北, 石家庄, 050051;
    2. 河北省农林科学院, 遗传生理研究所, 河北, 石家庄, 050051;
    3. 河北省农林科学院, 农业资源环境研究所, 河北, 石家庄, 050051;
    4. 河北省农林科学院, 河北, 石家庄, 050051;
    5 沈阳农业大学, 农学院, 辽宁, 沈阳, 110161
  • 收稿日期:2008-03-20 出版日期:2008-04-28
  • 通讯作者: 马春红((1968- ),女,浙江金华人,副研究员,主要从事植物抗逆生理和遗传育种研究;侯立白((1951- ),男,辽宁沈阳人,博士生导师,教授,主要从事农村可持续发展研究。
  • 作者简介:商闯(1982-),男,辽宁鞍山人,在读硕士,主要从事植物抗病生理研究.
  • 基金资助:
    河北省自然科学基金资助项目(C2006000744);国际科技合作资助项目(2006DFB02480);河北省科学技术研究与发展计划项目(07297162D);河北省农林科学院发展研究资助项目(A03-2-01-14)

Induced Host Disease by Culture Filtrate of Bipolaris maydis Race C Toxin Cultivation in Maize (Zea mays L.)

SHANG Chuang1,2, MA Chun-hong2, JIA Yin-suo2, ZHAI Cai-xia3, LI Yun-chao2, DONG Wen-qi4, CUI Si-ping2, HOU Li-bai1   

  1. 1. Faculty of Agronomy, Shenyang Agricultural University, Shenyang 110161, China;
    2. Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China;
    3. Institute of Resources and Environment, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China;
    4. Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
  • Received:2008-03-20 Published:2008-04-28

摘要: 利用低浓度玉米小斑病菌C小种毒素培养滤液作为激发子诱导玉米获得抗病性。以一对同核异质玉米B37自交系为试材,采用离体叶片接种法检测适宜诱导抗性的低浓度玉米小斑病菌C小种毒素培养滤液作为激发子诱导玉米抗病性的适宜诱导浓度,测定与抗病性相关酶的变化。经用1∶50和1∶60的低浓度玉米小斑病菌C小种毒素培养滤液预处理植株,再接种高浓度(1∶10)毒素培养滤液处理的病斑面积分别为(0.30±0.14)和(0.36±0.17)mm2,而对照为(2.70±0.24)mm2,是处理的7.5~9倍,差异极显著。经0~72 h的动态检测,以1∶60预处理效果为最佳,与对照相比,苯丙氨酸解氨酶(PAL)活性平均提高了23.4%,过氧化物酶(POD)活性平均提高了65.9%,有害物质丙二醛(MDA)的含量平均降低了28.2%。叶片内部所产生的生化反应与叶片表面的抗性病理反应相吻合,证实低浓度玉米小斑病菌C小种毒素滤液本身能够成功地作为激发子来诱导寄主-玉米获得抗性。

关键词: 玉米小斑病菌C小种, 毒素培养滤液, 苯丙氨酸解氨酶(PAL), 过氧化物酶(POD), 丙二醛(MDA), 诱导抗性

Abstract: Disease to maize southern leaf spot disease was induced by culture filtrate of Bipolaris maydis race C toxin cultivation.A pair of homokaryon B37 inbred lines in maize was used as the test material.The toxin activity was measured by the detached leaf method to find its optimal concentration as a plant defense activator that induces maize disease resistance,and several enzymes involved in disease resistance were presented.The lesion area on the leaves was significant difference by ANOVA.They were(0.30±0.14) and(0.36±0.17) mm2 respectively after pretreated with 1∶50 and 1∶60 of culture filtrate of Bipolaris maydis race C toxin cultivation were(0.30±0.14) and(0.36±0.17) mm2 respectively.It was decreased 7.5-9 times compared with the CK(2.70±0.24) mm2.At the same time,the changes of peroxidase(POD),phenylalanine ammonialyase(PAL),malondialdenvde(MDA) activities were determined.During 0-72 h inspection,the effect of 1∶60 concentration was better than that of 1∶50,PAL activity increased by 23.4%,POD activity increased by 65.9%,but the malondialdenvde(MDA) content decreased by 28.2% compared with the CK.It was shown that culture filtrate of Bipolaris maydis race C toxin cultivation itself can function as an elicitor to induce host disease resistance in maize.

Key words: Bipolaris maydis race C, Culture filtrate of toxin cultivation, Phenylalanine ammonialyase CPAL), Per-oxidase (POD), Malondialdcnvde MDA (MDA), Irxluced resistance

中图分类号: 

引用本文

商闯, 马春红, 贾银锁, 翟彩霞, 李运朝, 董文琦, 崔四平, 侯立白. 低浓度玉米小斑病菌C小种毒素培养滤液诱导寄主抗性的研究[J]. 华北农学报, 2008, 23(2): 198-204. doi: 10.7668/hbnxb.2008.02.044.

SHANG Chuang, MA Chun-hong, JIA Yin-suo, ZHAI Cai-xia, LI Yun-chao, DONG Wen-qi, CUI Si-ping, HOU Li-bai. Induced Host Disease by Culture Filtrate of Bipolaris maydis Race C Toxin Cultivation in Maize (Zea mays L.)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 198-204. doi: 10.7668/hbnxb.2008.02.044.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.2008.02.044

               http://www.hbnxb.net/CN/Y2008/V23/I2/198