您好，欢迎访问广东省农业科学院 机构知识库！
广东省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Importance of thermal adaptation of Amphobotrys ricini in its infection of Asian copperleaf (Acalypha australis)

文献类型： 外文期刊

作者： Yu, Lin 1 ; Zhang, Rui 1 ; Li, Xue 1 ; Li, Guoqing 1 ; Zhang, Jing 1 ;

作者机构： 1.Huazhong Agr Univ, State Key Lab Agr Microbiol, Key Lab Plant Pathol Hubei Prov, Wuhan 430070, Hubei, Peoples R China

2.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangzhou 510640, Guangdong, Peoples R China

3.Guangdong Prov Key Lab High Technol Plant Protect, Guangzhou 510640, Guangdong, Peoples R China

关键词： Amphobotrys ricini; Acalypha australis; Gray mold; Thermal adaption; Host preference

期刊名称：JOURNAL OF GENERAL PLANT PATHOLOGY （ 影响因子：1.449； 五年影响因子：1.416 ）

ISSN： 1345-2630

年卷期： 2019 年 85 卷 5 期

页码：

收录情况： SCI

摘要： Amphobotrys ricini and Botrytis cinerea are causal agents of gray mold in euphorbiaceous plants, including Ricinus communis and Acalypha australis. In the present monitoring of epidemics of A. ricini and B. cinerea in A. australis, A. ricini was found in A. australis from August to October, when average temperatures ranged from 17.5 to 32.5 degrees C. In contrast, B. cinerea was not found in A. australis. This result suggests that A. ricini may adapt better than B. cinerea to warm weather. To test this idea, we examined the effects of temperature on mycelial growth and conidial germination of A. ricini and B. cinerea and their aggressiveness in A. australis and R. communis. Results showed that the optimal temperature for mycelial growth was 20-30 degrees C for A. ricini and 20 degrees C for B. cinerea. The optimal temperatures for conidial germination ranged from 26 to 30 degrees C for A. ricini and from 20 to 26 degrees C for B. cinerea. At 30-32 degrees C, A. ricini grew more rapidly, had higher conidial germination percentages and longer germ tubes than B. cinerea. When A. australis and R. communis were inoculated with these fungi, A. ricini was more aggressive than B. cinerea at 28 degrees C, but less aggressive than B. cinerea at 20 degrees C, during infection of leaves. These results suggest that thermal tolerance plays an important role in epidemics of A. ricini in A. australis. The study elucidated an ecological mechanism for better understanding about host preference of A. ricini in A. australis.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：广东省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台