Occurrence of <i>Puccinia polysora</i> Causing Southern Corn Rust in the Northeast Huanghuaihai Region of China

Liu, X. F.; Xu, Jun; Gu, Yunqing; Sun, Qun; Yuan, Wenya; Ma, Zhanhong

doi:10.1094/pdis-05-17-0646-pdn

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…2). Based on the previous studies and our surveys of P. polysora, we inferred that the pathogen in the southern area in China where the disease can over-winter could be the source of SCR occurred in summer maize in the Huanghuaihai area of China (Liu et al 2018;Wang et al 2020a; Fig. 2).…”

Section: P Polysora Migrationmentioning

confidence: 78%

“…Typhoons can efficiently enhance long-distance spore dispersal of P. polysora, and the landing pathway and duration of typhoon will determine the range and severity of SCR (Wang et al 2020a). Owing to the cultivation of susceptible varieties over large areas and a favorable climate for disease development, SCR displays an aggravating tendency in China (Liu et al 2018). In 2015, the affected area and yield losses caused by SCR were 5.289 million hm 2 and 756 million kg, respectively, which were 4.5-fold and 8.8-fold great than the annual averages of 2008-2014 (Liu et al 2016;Fig.…”

Section: Scr In Chinamentioning

confidence: 99%

“…However, Guo et al (2013) reported low gene flows among provincial populations, and the pathogens in Hainan, Guangdong and Guangxi were not the original sources of the disease in summer maize in the Huanghuaihai area, indicating that the pathogen in China may originate from other areas outside the mainland of China. Conversely, Liu et al (2018) inferred that P. polysora emergence in Tianjin was likely attributable to long-distance wind dispersal from southern China. In addition, according to Wang et al (2020a), Taiwan, China, is the original source of the pathogen found in the Huanghuaihai region, and Liaoning, Zhejiang, Fujian, and Guangdong provinces; the Philippines is the source of the pathogen in Guangdong, Guangxi and Hainan; and Thailand and other neighboring countries are the sources of the pathogen occurring in Yunnan and Guizhou provinces (Fig.…”

Section: P Polysora Migrationmentioning

confidence: 99%

“…Fig.2The distribution of Puccinia polysora and the possible resources of primary infection of P. polysora causing southern corn rust in China. Broken black arrows indicate the possible pathway of urediniospores dispersed by the wind(Liu et al 2018;Wang et al 2020a) …”

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confidence: 99%

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Southern corn rust caused by Puccinia polysora Underw: a review

Sun

Guo

et al. 2021

Phytopathol Res

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Southern corn rust (SCR) caused by Puccinia polysora Underw is one of the most devastating maize diseases, resulting in substantial yield losses worldwide. The pathogen is an obligate biotrophic parasite that is difficult to culture on artificial media. In recent years, the disease has become prevalent—both globally and in China—and increasing difficult to control because of its wide distribution, long-distance migration, multiple physiological races and fast evolution, all of which have contributed to a considerable increase in the risks of associated epidemics. In this review, we summarize the current knowledge of P. polysora, with emphasis on its global distribution (particularly in China), life and disease cycle, population genetics, migration, physiological races, resistance genes in maize and management. Understanding the underlying factors and processes in SCR epidemics should facilitate management of the disease and breeding for resistant maize varieties.

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Section: P Polysora Migrationmentioning

confidence: 78%

Section: Scr In Chinamentioning

confidence: 99%

Section: P Polysora Migrationmentioning

confidence: 99%

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confidence: 99%

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Southern corn rust caused by Puccinia polysora Underw: a review

Sun

Guo

et al. 2021

Phytopathol Res

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“…Outbreaks of P. polysora on maize have been reported as early as in 1949 and 1952 in West and East Africa, respectively (Rhind et al 1952;Nattrass 1953). Furthermore, SCR was reported in 2002 in Brazil and as recently as in 2018 in the Northeast Huanghuahai region of China (Casela and Ferreira 2002;Liu et al 2018). Despite the prevalence of southern corn rust in the Southern states of the United States, multiple disease outbreaks have been occasionally reported in the Midwest in the past years (Pavgi and Flangas 1959;Sim 1980;Schall et al 1983), suggesting that SCR can 4).…”

Section: Discussionmentioning

confidence: 99%

First report of the southern corn rust pathogen Puccinia polysora on Zea mays in North Dakota

Halvorson

Kim

Gill

et al. 2021

Canadian Journal of Plant Pathology

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Southern corn rust, caused by Puccinia polysora, is a yield-limiting disease on corn (Zea mays). As a biotrophic fungal pathogen, P. polysora requires a living host for its survival. Southern corn rust is favoured by high-temperatures and humid environmental conditions, and therefore is more prevalent in the southern United States. In August 2020, corn plants displaying signs and symptoms of southern rust were collected in a field in Grand Forks County, North Dakota. Due to its rare occurrence in the region, spores of the pathogen were isolated and analyzed morphologically, and found to be consistent with P. polysora. This identification was confirmed by PCR analysis and Sanger sequencing, and demonstrated further using Koch's postulates. The discovery of P. polysora poses a potential threat to corn yields across North Dakota, and surveillance must be enhanced to predict possible epidemics in the future.

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Prediction of the global occurrence of maize diseases and estimation of yield loss under climate change

Ma,

Wang,

Chen

et al. 2024

Pest Management Science

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BACKGROUNDClimate change significantly impacts global maize production via yield reduction, posing a threat to global food security. Disease‐related crop damage reduces quality and yield and results in economic losses. However, the occurrence of diseases caused by climate change, and thus crop yield loss, has not been given much attention.RESULTSThis study aims to investigate the potential impact of six major diseases on maize yield loss over the next 20 to 80 years under climate change. To this end, the Maximum Entropy model was implemented, based on Coupled Model Intercomparison Project 6 data. The results indicated that temperature and precipitation are identified as primary limiting factors for disease onset. Southern corn rust was projected to be the most severe disease in the future; with a few of the combined occurrence of all the selected diseases covered in this study were predicted to progressively worsen over time. Yield losses caused by diseases varied per continent, with North America facing the highest loss, followed by Asia, South America, Europe, Africa, and Oceania.CONCLUSIONThis study provides a basis for regional projections and global control of maize diseases under future climate conditions. © 2024 Society of Chemical Industry.

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Occurrence of Puccinia polysora Causing Southern Corn Rust in the Northeast Huanghuaihai Region of China

Cited by 7 publications

References 2 publications

Southern corn rust caused by Puccinia polysora Underw: a review

Southern corn rust caused by Puccinia polysora Underw: a review

First report of the southern corn rust pathogen Puccinia polysora on Zea mays in North Dakota

Prediction of the global occurrence of maize diseases and estimation of yield loss under climate change

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