WANG Wei,HE Manmei,NI Jianzhong,et al.Physiological Responses of Varieties of Catharanthus roseus G.Don After Infected With Phytophthora nicotiana[J].Northern Horticulture,2016,40(19):83-88.[doi:10.11937/bfyy.201619023]
长春花抗疫病品种比较及遭受疫病危害后的生理响应
- Title:
- Physiological Responses of Varieties of Catharanthus roseus G.Don After Infected With Phytophthora nicotiana
- Keywords:
- Catharanthus roseus G.Don; Phytophthora nicotiana; physiological index; resistance mechanism
- 文献标志码:
- A
- 摘要:
- 以22个进口长春花品系为试材,在自然条件下对其感染疫病不同阶段的生理指标进行测定,研究了不同长春花品系对疫病的抗性。结果表明:进口长春花“太平洋”系列大部分品系均表现出较差的抗疫病能力,而“卡拉”系列均表现出优于“太平洋”及“维特”系列的抗疫病能力。进一步对不同时期、不同长春花品系采样进行生理指标测定,研究长春花在遭受疫病后营养物质和防御酶的动态变化,表明可溶性蛋白质含量与疫病危害等级呈正相关,可溶性糖含量与疫病危害呈负相关;多酚氧化酶随疫病危害活性逐渐升高,不同品种间过氧化酶活性的高低与抗疫病能力无显著相关性。
- Abstract:
- 22 Catharanthus roseus G.Don varieties were cultivated in this experiment to study physiological responses of varieties of Catharanthus roseus G.Don after infected with Phytophthora nicotiana.The results showed that most of ‘Taipingyang’Catharanthus roseus G.Don varieties were classified as low resistant variety.The varieties ‘Kala’showed higher resistant than other series varieties.Several biochemical indexes were tested after different periods when varieties of Catharanthus roseus G.Don infect with Phytophthora nicotiana.The results revealed that the soluble protein content had the same change trend with resistance level,and the soluble sugar content and resistance level seem to be negatively correlated.According to the research results,the activities of PPO gradually increased with the change of damage time and there were no significant difference between the activities of POD and resistance.
参考文献/References:
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备注/Memo
第一作者简介:王伟(1983-),男,博士研究生,研究方向为园林植物新品种选育。E-mail:waynelove@126.com.责任作者:代色平(1975-),女,博士,教授级高级工程师,研究方向为野生花卉及新优园林品种引进开发与园林景观生态。E-mail:383856367@qq.com.基金项目:广州市财政预算资助项目(2061400000086)。