Correlation between Inclusion Contents in Casuarina spp. Twigs and Its Resistance to Lymantria xylina

• 作者: Cai Shouping Chen Shnnli He Xueyou Huang Jinshui Ke Yuzhu Lin Xiuqin Zeng Liqiong
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 夹杂物含量 麻黄属 树枝 可溶性糖含量 耐药菌株 抗性菌株 总酚含量 蛋白质
• 年，卷（期）: pdapzwbchyj_2014,（4）
• 页码范围: 9-12
• 页数: 4页
• 分类号: S858.2

摘要

[Objective] The paper was to explore the correlation between inclusion contents in Casuarina spp. twigs and its resistance to Lymantria xylina.[Method]Three types of representative Casuarina spp. strains including resistant strains(Zhanjiang 3,Hui 76,Hui 83,Guangdong A8-2),moderate resistant strains(Pingtan 2,Hui 1,Long 7-18) and susceptible strains(Dongshan 2,Guangdong 501,Kangfeng) were used as materials to determine the contents of six kinds of inclusions,total phenol,tannin,flavonoids,protein,soluble sugar and polysaccharide. [Result]The resistant strains had higher flavonoids,tannin and total phenol contents and lower soluble sugar and protein contents than the susceptible strains,while the content of polysaccharide acted randomly. The grey correlativity analysis showed that resistance degree,pupation rate and pupal weight had high correlation with protein and soluble sugar contents,with correlation index equal to or above 0.5000. [Conclusion]The study provided a theoretical basis for screening and promotion of resistant strains against L.xylina.