Article
Biotechnology & Applied Microbiology
Cuiping Li, Wencong Shi, Di Wu, Renmao Tian, Bing Wang, Rongshan Lin, Bo Zhou, Zheng Gao
Summary: This study reported a biocontrol bacteria that suppresses potato common scab by reducing pathogen abundance and regulating soil bacterial community. The results suggest potential beneficial bacteria may cooperate with the biocontrol strain to control the disease. Functional prediction showed changes in the relative abundance of specific pathways, providing insights into the micro-ecological mechanisms for controlling plant diseases with biocontrol agents.
BIOLOGICAL CONTROL
(2021)
Article
Plant Sciences
Qi Wei, Jie Li, Shuai Yang, Wenzhong Wang, Fanxiang Min, Mei Guo, Shu Zhang, Xuezhi Dong, Linshuang Hu, Zhugang Li, Xiaodan Wang
Summary: Common scab is a significant potato disease caused by Streptomyces spp. This study identified a strain of Streptomyces from scabby potatoes in Heilongjiang Province, China, which has the ability to cause typical scab lesions and is highly similar to a strain from Korea. Additionally, this strain was detected in scabby potato samples collected in Heilongjiang Province.
Article
Biochemistry & Molecular Biology
Pan Zhao, Lu Liu, Jingjing Cao, Zhiqin Wang, Yonglong Zhao, Naiqin Zhong
Summary: This study revealed that tryptophan can induce resistance against potato common scab by regulating metabolic processes, stimulus response, and biological regulation. The expression patterns of candidate genes involved in salicylic acid and jasmonic acid/ethylene pathways were also analyzed, showing that tryptophan can induce systemic acquired resistance and induced systemic resistance pathways to enhance potato's resistance against common scab.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Microbiology
Wencong Shi, Gaoya Su, Mingcong Li, Bing Wang, Rongshan Lin, Yutian Yang, Tao Wei, Bo Zhou, Zheng Gao
Summary: This study clarified the distribution and composition of potato endophytes in tubers, roots, and stems, and demonstrated the response of endophytes in non-lesion tissues to potato common scab (PCS).
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Plant Sciences
Ru-Ying Feng, Yi-Hsuan Chen, Chih Lin, Chia-Hsin Tsai, Yu-Liang Yang, Ying-Lien Chen
Summary: This study aimed to determine whether surfactin is the main compound active against Streptomyces scabies in potato common scab. The results showed that the srf gene cluster of Bacillus amyloliquefaciens Ba01 is responsible for the secretion of surfactin and inhibition of S. scabies. Knocking out the srf gene cluster significantly decreased the swarming ability, biofilm formation, enzyme activity, and inhibitory effect of Ba01 on S. scabies.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Microbiology
Cindy Hudec, Adrien Biessy, Amy Novinscak, Renee St-Onge, Simon Lamarre, Jochen Blom, Martin Filion
Summary: In this study, the genomes of 14 prevalent scab-causing Streptomyces spp. from Prince Edward Island, a significant Canadian potato production area, were analyzed. The virulence factors of these strains were compared, revealing novel findings challenging previous assumptions on Streptomyces' virulence. The study suggests that other factors, yet to be characterized, may play a key role in the pathogenicity of these scab-causing Streptomyces strains.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Plant Sciences
Lulu Xia, Lixiang Cheng, Jianlong Yuan, Bin Yu, Lili Liang, Wangtian Wang, Feng Zhang
Summary: Potato common scab is a soil-borne disease caused by Streptomyces scabies, which affects tuber quality and production. This study used a comparative proteomics approach to analyze the proteome alterations in potato tuber skin and flesh after infection with common scab. The results showed significant changes in abundance of proteins involved in defense, bioenergy and metabolism, storage, chaperones, redox homeostasis, and other functions. The up-regulation of defense-related proteins and cell wall reorganization enzymes in tuber skin suggests their role in preventing pathogen infection. Chaperones were up-regulated in both tuber skin and flesh, indicating their importance in maintaining protein conformation and cell homeostasis. The down-regulation of patatin proteins may inhibit tuber swelling. These findings provide new insights into the response mechanisms of tubers infected with common scab and can aid in the development of strategies to improve resistance in potato breeding.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2022)
Article
Plant Sciences
Lauren E. Braley, Jeremy B. Jewell, Jose Figueroa, Jodi L. Humann, Dorrie Main, Guadalupe A. Mora-Romero, Natalia Moroz, James W. Woodhall, Richard Allen White, Kiwamu Tanaka
Summary: Early detection of causal pathogens is crucial for preventing crop loss. This study assessed the use of the Oxford Nanopore MinION sequencer as a molecular diagnostic tool for soilborne diseases in potato fields. The results demonstrated the high potential of Nanopore sequencing as a minimally biased method for comprehensive pathogen detection. The GraphMap-based MinION sequencing method could contribute to disease management by identifying pathogens in field soil prior to planting.
Article
Plant Sciences
Sadegh Balotf, Calum R. Wilson, Robert S. Tegg, David S. Nichols, Richard Wilson
Summary: Potato is an important food crop, and infection by the pathogen S. subterranea causes economic losses. This study used proteomics and phosphoproteomics to investigate potato's response to S. subterranea infection. The results showed differential responses in resistant and susceptible cultivars, including changes in oxidoreductase activity, electron transfer, photosynthesis, signal transduction, and defense response.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Microbiology
Hien P. Nguyen, Alexandra J. Weisberg, Jeff H. Chang, Christopher R. Clarke
Summary: Fourteen strains of Streptomyces isolated from scab lesions on potato are described as members of a novel species based on genetic distance, morphological observation and biochemical analyses. The strains have unique characteristics and susceptibilities to certain antibiotics. Although their 16S rRNA gene sequences are identical to other Streptomyces species, whole-genome average nucleotide identity and multi-locus sequence analysis confirm that they belong to a new species.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Plant Sciences
P. J. Wright, R. E. Falloon, C. Anderson, R. A. Frampton, D. Curtin, D. Hedderley
Summary: Research identified soils in New Zealand capable of suppressing Spongospora, with soil texture, pH, organic matter, and nutrient contents influencing powdery scab incidence. Different soils showed varying levels of disease suppression ability.
AUSTRALASIAN PLANT PATHOLOGY
(2021)
Article
Agriculture, Multidisciplinary
Yingjun Zhou, Qing Li, Zheng Peng, Juan Zhang, Jianghua Li
Summary: In this study, a Bacillus subtilis YPS-32 strain was obtained and found to have a control efficacy of 83.70% against potato common scab. Analysis of the strain's genome revealed multiple genes related to the synthesis of antibiotics and plant growth promoters. The study also identified antagonists produced by the strain that have antimicrobial effects. The findings provide insights into the mode of action of B. subtilis YPS-32 against Streptomyces scabies and serve as a reference for future research on antibacterial genes.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Microbiology
Sudipta Sankar Bora, Dibya Jyoti Hazarika, Amrita Churaman, Romen S. Naorem, Abhisek Dasgupta, Ranjana Chakrabarty, Hemen Kalita, Madhumita Barooah
Summary: Potato plants have an interesting interaction with the microbial population in the geocaulosphere, which helps reduce the symptoms of common scab disease. The disease modulates the composition and abundance of the microbiome, but the core microbiome remains resilient. The plants selectively recruit beneficial microbes to fight against the pathogenic Streptomyces spp.
ARCHIVES OF MICROBIOLOGY
(2023)
Article
Agronomy
Iauhenia Isayenka, Juan Duque-Yate, Marie-Claire Goulet, Dominique Michaud, Carole Beaulieu, Nathalie Beaudoin
Summary: Potato common scab, caused by Streptomyces scabiei, is a potato disease characterized by corky lesions on tubers. It reduces their marketability. Using resistant potato varieties is an effective strategy for controlling common scab, but little is known about the resistance factors. This study found that a somaclonal variant RB9, derived from thaxtomin A-treated Russet Burbank calli, had tubers more resistant to common scab. Proteomic analysis revealed changes in defense-related proteins in RB9 compared to Russet Burbank, including increased accumulation of LOX and defense-related peptides. The study also found that LOX activity was intensified in infected RB9 tubers and contributed to tuber defense against common scab.
Article
Biotechnology & Applied Microbiology
Zhenshuo Wang, Yan Li, Yu Zhao, Lubo Zhuang, Yue Yu, Mengyao Wang, Jia Liu, Qi Wang
Summary: The study found that a microbial consortium-based biocontrol product can promote the growth of beneficial bacteria in soil and increase potato yield. Metagenomic analysis indicated a higher relative abundance of beneficial bacterial taxa and a greater richness of genes associated with metabolic pathways in soil treated with MCB product.
MICROBIAL BIOTECHNOLOGY
(2021)
Article
Statistics & Probability
Mare Omelka, Sarka Hudecova, Natalie Neumeyer
Summary: This paper discusses the estimation of the dependence structure of a multidimensional response variable in the presence of a multivariate covariate. It focuses on the parametric estimation of the copula function using the maximum pseudo-likelihood method, and proves that the estimator based on residuals has the same asymptotic distribution as the estimator based on unobserved errors under certain regularity assumptions. However, a Monte Carlo simulation study shows that the maximum pseudo-likelihood estimator based on residuals may perform poorly when the regularity assumptions are not satisfied.
SCANDINAVIAN JOURNAL OF STATISTICS
(2021)
Article
Ecology
Andrea Buresova, Vaclav Tejnecky, Jan Kopecky, Ondrej Drabek, Pavla Madrova, Nada Rerichova, Marek Omelka, Petra Krizova, Karel Nemecek, Thomas B. Parr, Tsutomu Ohno, Marketa Sagova-Mareckova
Summary: The study compared the soil forming processes and microbial community structures under beech and spruce forests, finding higher litter decomposition rates in beech forests and lower rates in spruce forests.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2021)
Review
Engineering, Environmental
M. Sagova-Mareckova, J. Boenigk, A. Bouchez, K. Cermakova, T. Chonova, T. Cordier, U. Eisendle, T. Elersek, S. Fazi, T. Fleituch, L. Fruhe, M. Gajdosova, N. Graupner, A. Haegerbaeumer, A. -M. Kelly, J. Kopecky, F. Leese, P. Noges, S. Orlic, K. Panksep, J. Pawlowski, A. Petrusek, J. J. Piggott, J. C. S. Rusch, R. Salis, J. Schenk, K. Simek, A. Stovicek, D. A. Strand, M. I. Vasquez, T. Vralstad, S. Zlatkovic, M. Zupancic, T. Stoeck
Summary: The importance and potential of utilizing microbes as bioindicators in water quality monitoring are discussed in this review. Molecular methods have revealed microbial diversity and new metabolic pathways, which can improve our understanding of environmental processes, serving as a solid foundation for novel monitoring programs. Microbial community dynamics are highlighted as a missing link essential for comprehending rapid changes in aquatic ecosystem structure and function, suggesting they should be addressed in future environmental monitoring of freshwater ecosystems.
Article
Agronomy
Sagova-Mareckova Marketa, Ensyeh Sarikhani, Ondrej Daniel, Marek Omelka, Vaclav Kristufek, Jiri Divis, Jan Kopecky
Summary: The study on common scab of potatoes revealed the influence of plant-microbe-soil interactions on nitrogen, calcium, phosphorus and other nutrient contents affecting susceptibility to the disease. The diversity of bacteria was found to be positively correlated with disease severity, indicating interactions between pathogen populations and soil communities.
Article
Microbiology
Andrea Buresova-Faitova, Jan Kopecky, Marketa Sagova-Mareckova, Lise Alonso, Florian Vautrin, Yvan Moenne-Loccoz, Veronica Rodriguez-Nava
Summary: This study compared Actinobacteria communities in four French limestone caves and found significant differences in community composition influenced by anthropogenic activities. Different caves and areas within caves exhibited distinct Actinobacteria communities, with marked differences in species richness and composition.
Article
Soil Science
Tereza Patrmanova, Iva Krizkova, Daria Rapoport, Jan Kopecky, Sarka Hrychova, Marketa Sagova-Mareckova
Summary: This study explores the application of antagonistic strains to control common scab of potatoes and demonstrates their impact on soil microbial communities and host plant nutrition. One isolate shows significant reduction in the severity of common scab, while inoculation with these isolates leads to changes in host plant nutrition.
APPLIED SOIL ECOLOGY
(2022)
Article
Agronomy
Pavel Saska, Jan Kopecky, Marek Omelka, Alois Honek, Pavla Madrova, Petra Vokurkova, Zdenka Martinkova, Hana Foffova, Tereza Patrmanova, Marketa Sagova-Mareckova
Summary: This study compared the bacterial communities associated with seeds of seven weed species after burial in soil for two years and demonstrated the relationships between these changes and seed properties as well as attractiveness for a seed predator. The results showed that seed microbiomes remained specific after burial and contained taxa characteristic for both plant endophytes and insect guts. Changes in seed consumption were partially explained by bacterial communities and seed properties.
Article
Plant Sciences
Elodie Quer, Susana Pereira, Thomas Michel, Mathieu Santonja, Thierry Gauquelin, Guillaume Simioni, Jean-Marc Ourcival, Richard Joffre, Jean-Marc Limousin, Adriane Aupic-Samain, Caroline Lecareux, Sylvie Dupouyet, Jean-Philippe Orts, Anne Bousquet-Melou, Raphael Gros, Marketa Sagova-Mareckova, Jan Kopecky, Catherine Fernandez, Virginie Baldy
Summary: In Mediterranean ecosystems, projected rainfall reduction may alter plant-soil interactions, particularly litter decomposition and home field advantage. This study found that amplified drought conditions led to changes in litter quality and metabolomes, resulting in a slowdown of litter decomposition and loss of home field advantage in Mediterranean forests.