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小麦不同抗蚜品种(系)中吲哚生物碱的含量变化
引用本文:蔡青年,王宇,张青文,周明群. 小麦不同抗蚜品种(系)中吲哚生物碱的含量变化[J]. 应用生态学报, 2004, 15(3): 537-539
作者姓名:蔡青年  王宇  张青文  周明群
作者单位:中国农业大学昆虫学系,北京,100094
基金项目:国家重大基础研究发展规划资助项目 (G2 0 0 0 0 162 0 9)
摘    要:1 引  言生物碱是一类重要的植物次生化合物 ,在植物防御有害生物的入侵过程中发挥着重要作用 .许多生物碱已被证明对蚜虫和其他一些害虫具有较强的毒杀活性 ,成为很有前途的植物杀虫驱虫剂活性成份[5,7,8] .禾本科植物中存在芦竹碱和相关的吲哚生物碱 ,对麦二叉蚜 (Schizaphisgraminum)和禾谷缢管蚜 (Rhopalosiphum padi)有毒杀作用[2 ,9,10 ] ,这种生物碱在大麦苗叶片中 ,随叶龄增加而降低[10 ] .小麦不同抗蚜品种 (系 )上麦长管蚜 (Sitobionavenae)蚜量比值与旗叶吲哚生物碱含量呈一定的负相关 ,而穗部吲哚生物碱含量呈较显著的负相…

关 键 词:小麦 抗蚜品种 吲哚生物碱 含量测定 植物次生化合物 抗性作用
文章编号:1001-9332(2004)03-0537-03
修稿时间:2002-07-07

Dynamics of indole alkaloids in wheat varieties with various resistance to wheat aphid Sitobion avenae
CAI Qingnian,WANG Yu,ZHANG Qingwen,CHEO Mingzang. Dynamics of indole alkaloids in wheat varieties with various resistance to wheat aphid Sitobion avenae[J]. The journal of applied ecology, 2004, 15(3): 537-539
Authors:CAI Qingnian  WANG Yu  ZHANG Qingwen  CHEO Mingzang
Affiliation:Department of Entomology, China Agricultural University, Beijing 100094, China. caiqn@cau.edu.cn
Abstract:UV spectrometry measurement on the indole alkaloids (IA) contents of seven wheat varieties (KOK1679, My295, Li, Han4564 and Yanda1817, resistant to S. avenae; Shaanximazha and Lovrin10, susceptible to S. avenae) showed that during tillering and stem elongation stages, KOK1679, My295 and Li had a higher IA content (> 0.5 mg.g-1 FW); and during heading and anthesis stages, the penultimate leaves of all five resistant varieties contained higher IA (> 0.5 mg.g-1 FW). The IA content was lower in the flat leaves of both resistant and susceptible varieties, but was significantly higher in the ears of resistant varieties (up to 0.645 mg.g-1 FW in KOK1679) than in those of susceptible ones. It was showed that the IA content in wheat's ear played an important role in the resistance to S. avenae.
Keywords:Wheat varieties (lines)   Indole alkaloids   Tillering stage   Elongation stage   Flag leaf   Ear.
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