scholarly journals Higher relative humidity and more moderate temperatures increase the severity of rice false smut disease in the rice–crayfish coculture system

2021 ◽  
Author(s):  
Song Jiehui ◽  
Wang Yan ◽  
Chen Linrong ◽  
Zhang Sijie ◽  
Ni Chuan ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Rice False Smut ◽  
Coculture System ◽  
False Smut

scholarly journals Rice False Smut Disease at Different Flowering Times

2016 ◽  
Vol 19 (2) ◽  
pp. 28-35 ◽  
Author(s):  
Bodrun Nessa ◽  
Moin U Salam ◽  
AHM Mahfuzul Haque ◽  
Jiban K Biswas ◽  
M Abdul Latif ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Flowering Time ◽  
Control Measure ◽  
Disease Incidence ◽  
First Record ◽  
Effective Control ◽  
Rice False Smut ◽  
Sunshine Hours ◽  
False Smut ◽  
The Relationship

CORRECTION: Due to a number of formatting and layout issues, the PDF of this paper was replaced on 10th October 2016. The page numbers of this article have changed from 28-34 to 28-35.Rice false smut (RFSm) has lately been recognized as an emerging disease worldwide. Its alarming prevalence in Bangladesh in the transplant Aman rice in the last three years has been widely reported. However, there is no effective control measure against the disease in this country. We hypothesized that manipulation of flowering time in aman rice may avoid RFSm incidence. A two-year study (2014 and 2015) during T. Aman season using the widely regarded RFSm-prone variety, BRRI dhan49, across a range of flowering regime from mid-July to mid-January, demonstrated lower disease incidence in earlier (till mid-October) and later (after mid-November) part. The highest incidence of the disease was recorded when the crop flowered on 9 and 5 November in 2014 and 2015, respectively. The disease was recorded on ratoons. The peak of the infection recorded on ratoons when flowered on 7 November. To the best of our knowledge, worldwide, this is the first record of the disease on ratoons. Rainfall did not influence the disease. The relationship between the disease incidence and relative humidity and sunshine hours were significant. Avoiding flowering time during mid-October to mid-November through planting time adjustment appeared as an effective practice to escape rice false smut disease incidence in Aman season.Bangladesh Rice j. 2015, 19(2): 28-35

scholarly journals A novel transcription factor UvCGBP1 regulates development and virulence of rice false smut fungus Ustilaginoidea virens

Virulence ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 1563-1579
Author(s):  
Xiaoyang Chen ◽  
Pingping Li ◽  
Hao Liu ◽  
Xiaolin Chen ◽  
Junbin Huang ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Smut Fungus ◽  
Ustilaginoidea Virens ◽  
Rice False Smut ◽  
False Smut

scholarly journals Quantitative Proteomics Analysis Reveals the Function of the Putative Ester Cyclase UvEC1 in the Pathogenicity of the Rice False Smut Fungus Ustilaginoidea virens

2021 ◽  
Vol 22 (8) ◽  
pp. 4069
Author(s):  
Xiaoyang Chen ◽  
Zhangxin Pei ◽  
Pingping Li ◽  
Xiabing Li ◽  
Yuhang Duan ◽  
...  
Keyword(s):  
Quantitative Proteomics ◽  
Fungal Pathogens ◽  
Protein Localization ◽  
Proteomics Data ◽  
Ustilaginoidea Virens ◽  
Rice False Smut ◽  
Oxidative Stresses ◽  
Tandem Mass Tag ◽  
Cyclase Domain ◽  
False Smut

Rice false smut is a fungal disease distributed worldwide and caused by Ustilaginoidea virens. In this study, we identified a putative ester cyclase (named as UvEC1) as being significantly upregulated during U. virens infection. UvEC1 contained a SnoaL-like polyketide cyclase domain, but the functions of ketone cyclases such as SnoaL in plant fungal pathogens remain unclear. Deletion of UvEC1 caused defects in vegetative growth and conidiation. UvEC1 was also required for response to hyperosmotic and oxidative stresses and for maintenance of cell wall integrity. Importantly, ΔUvEC1 mutants exhibited reduced virulence. We performed a tandem mass tag (TMT)-based quantitative proteomic analysis to identify differentially accumulating proteins (DAPs) between the ΔUvEC1-1 mutant and the wild-type isolate HWD-2. Proteomics data revealed that UvEC1 has a variety of effects on metabolism, protein localization, catalytic activity, binding, toxin biosynthesis and the spliceosome. Taken together, our findings suggest that UvEC1 is critical for the development and virulence of U. virens.

The role of Ustilaginoidea virens sclerotia in increasing incidence of rice false smut disease in the subtropical zone in China

2017 ◽  
Vol 150 (3) ◽  
pp. 669-677 ◽  
Author(s):  
Mingli Yong ◽  
Qide Deng ◽  
Linlin Fan ◽  
Jiankun Miao ◽  
Chaohui Lai ◽  
...  
Keyword(s):  
Ustilaginoidea Virens ◽  
Subtropical Zone ◽  
Rice False Smut ◽  
False Smut

scholarly journals Characterization of mating-type loci in rice false smut fungus Villosiclava virens

2015 ◽  
Vol 362 (9) ◽  
Author(s):  
Jun-jie Yu ◽  
Wen-xian Sun ◽  
Mi-na Yu ◽  
Xiao-le Yin ◽  
Xiang-kun Meng ◽  
...  
Keyword(s):  
Mating Type ◽  
Smut Fungus ◽  
Rice False Smut ◽  
Villosiclava Virens ◽  
False Smut

Genetic diversity and population structure of the rice false smut pathogen Ustilaginoidea virens in Sichuan-Chongqing region

Plant Disease ◽  
2021 ◽  
Author(s):  
Anfei Fang ◽  
Zhuangyuan Fu ◽  
Zexiong Wang ◽  
Yuhang Fu ◽  
Yubao Qin ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Genetic Variation ◽  
Genetic Recombination ◽  
Resistance Breeding ◽  
Ustilaginoidea Virens ◽  
Breeding Lines ◽  
Rice False Smut ◽  
Geographical Populations ◽  
False Smut

Rice false smut caused by Ustilaginoidea virens is currently one of the most devastating fungal diseases of rice panicles worldwide. In this study, two novel molecular markers derived from SNP-rich genomic DNA fragments and a previously reported molecular marker were used for analyzing the genetic diversity and population structure of 167 U. virens isolates collected from nine areas in Sichuan-Chongqing region, China. A total of 62 haplotypes were identified, and a few haplotypes with high frequency were found and distributed in two to three areas, suggesting gene flow among different geographical populations. All isolates were divided into six genetic groups. The groups Ⅰ and Ⅵ were the largest including 61 and 48 isolates, respectively. The pairwise FST values showed significant genetic differentiation among all compared geographical populations. AMOVA showed that intergroup genetic variation accounted for 40.17% of the total genetic variation, while 59.83% of genetic variation came from intragroup. The UPGMA dendrogram and population structure revealed that the genetic composition of isolates collected from ST (Santai), NC (Nanchong), YC (Yongchuan), and WS (Wansheng) dominated by the same genetic subgroup was different from those collected from other areas. In addition, genetic recombination was found in a few isolates. These findings will help to improve the strategies for rice false smut management and resistance breeding, such as evaluating breeding lines with different isolates or haplotypes at different elevations and landforms.

The Bax inhibitor UvBI-1, a negative regulator of mycelial growth and conidiation, mediates stress response and is critical for pathogenicity of the rice false smut fungus Ustilaginoidea virens

2019 ◽  
Vol 65 (5) ◽  
pp. 1185-1197 ◽  
Author(s):  
Songlin Xie ◽  
Yufu Wang ◽  
Wei Wei ◽  
Chongyang Li ◽  
Yi Liu ◽  
...  
Keyword(s):  
Stress Response ◽  
Mycelial Growth ◽  
Negative Regulator ◽  
Smut Fungus ◽  
Ustilaginoidea Virens ◽  
Rice False Smut ◽  
False Smut

scholarly journals A Rapid Recognition Method for Rice False Smut based on HOG Features and SVM Classification

2020 ◽  
Vol 1576 ◽  
pp. 012018
Author(s):  
Naila S ◽  
Yu JJ ◽  
Yang N ◽  
Kashif H ◽  
Tang J ◽  
...  
Keyword(s):  
Recognition Method ◽  
Svm Classification ◽  
Rice False Smut ◽  
False Smut
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