Aggressiveness of Puccinia striiformis f. sp. tritici Isolates at High Temperatures: A Study Case in Core Oversummering Area of Gansu as inoculum source DOI Creative Commons
Bo Zhang, Jie Zhao, Jin Huang

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(24), P. 3518 - 3518

Published: Dec. 16, 2024

Wheat stripe rust, caused by a biotrophic, obligate fungus Puccinia striiformis f. sp. tritici (Pst), is destructive wheat fungal disease that exists worldwide and huge yield reductions during pandemic years. Low temperatures favor the development of disease, but global average temperature has been increasing since 1850, especially in China, which higher rising rate than average. In last two decades, Pst isolates have shown increased aggressiveness under high temperatures. However, effect on remained unknown China. Therefore, this study assessed 15 representative (6 new collected before 2016 9 old after 2016) Gansu measuring comparing severity, spore germination, latent period seedlings at 16 °C, 18 22 °C. The results indicated six showed greater germination ratio, shorter nine isolates, indicating were more aggressive isolates. Some such as CYR34, CYR33, CYR32, are predominant, inferred to be associated with high-temperature adaptation addition having susceptible hosts. Our provided an insight into changes warmer incidence rust eastern sporadic epidemiological areas recent Thus, likely potential risk for causing incidence.

Language: Английский

Dynamic of Puccinia striiformis f. sp. tritici Urediniospore and Its Correlation with Wheat Stripe Rust Epidemics in Xiangyang of China DOI

Xuemin Hu,

Yuxiang Li, Fuhua Chen

et al.

Crop Protection, Journal Year: 2024, Volume and Issue: 185, P. 106898 - 106898

Published: Aug. 13, 2024

Language: Английский

Citations

2
Dynamics of Puccinia striiformis f. sp. tritici Urediniospores and Its Relationship with Meteorological Factors in Mianyang, China DOI

Xuemin Hu,

Jiahao Lin, Yuxiang Li

et al.

Phytopathology, Journal Year: 2024, Volume and Issue: 114(6), P. 1289 - 1294

Published: Feb. 8, 2024

Stripe rust, caused by Puccinia striiformis f. sp. tritici ( Pst), is one of the main diseases wheat worldwide. Mianyang Sichuan province in Southwest China regions for winter Pst inoculum production and spring epidemic provides urediniospores infecting surrounding regions. Understanding urediniospore dynamics important to predict manage stripe rust. In this study, spore trapping coupled with a TaqMan real-time quantitative PCR method was used monitor airborne from December 2019 2022 Mianyang. Weather conditions (temperature, relative humidity, daily sunshine duration, precipitation) were collected same period. These data study relationship density climatic conditions. The results showed that captured all year round, annual peak densities occurred period March April which accounted largest proportion total urediniospores. linearly related average duration 20 days temperature 15 prior final day 7-day This needs be tested other where can sporulate during before it integrated infection rust development.

Language: Английский

Citations

1
Aggressiveness of Puccinia striiformis f. sp. tritici Isolates at High Temperatures: A Study Case in Core Oversummering Area of Gansu as inoculum source DOI Creative Commons
Bo Zhang, Jie Zhao, Jin Huang

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(24), P. 3518 - 3518

Published: Dec. 16, 2024

Wheat stripe rust, caused by a biotrophic, obligate fungus Puccinia striiformis f. sp. tritici (Pst), is destructive wheat fungal disease that exists worldwide and huge yield reductions during pandemic years. Low temperatures favor the development of disease, but global average temperature has been increasing since 1850, especially in China, which higher rising rate than average. In last two decades, Pst isolates have shown increased aggressiveness under high temperatures. However, effect on remained unknown China. Therefore, this study assessed 15 representative (6 new collected before 2016 9 old after 2016) Gansu measuring comparing severity, spore germination, latent period seedlings at 16 °C, 18 22 °C. The results indicated six showed greater germination ratio, shorter nine isolates, indicating were more aggressive isolates. Some such as CYR34, CYR33, CYR32, are predominant, inferred to be associated with high-temperature adaptation addition having susceptible hosts. Our provided an insight into changes warmer incidence rust eastern sporadic epidemiological areas recent Thus, likely potential risk for causing incidence.

Language: Английский

Citations

0