Review
Microbiology
Jianjun Hao, Katherine Ashley
Summary: Soil amendments play a crucial role in enhancing soil health and disease suppression for better potato production by providing nutrients to plants, suppressing soilborne pathogens, and promoting microbial activities. Different types of amendments, such as fresh plants, organic or inorganic matter, and microbial supplements, contribute to improving soil quality and plant health through various mechanisms. Advanced technologies, like microbiome analyses, help researchers understand the mechanisms and functions of soil amendments, leading to more effective strategies for sustainable potato cultivation.
Article
Horticulture
Shenghan Yang, Chonlong Chio, Wensheng Qin, Yanxi Pei, Guangpeng Pei, Yuen Zhu, Hua Li
Summary: This study evaluates the immobilization and deactivation of pathogen-produced enzymes and toxic metabolites by biochar in tomato Fusarium wilt and finds that biochar can effectively prevent disease occurrence.
SCIENTIA HORTICULTURAE
(2024)
Article
Soil Science
Beibei Wang, Mingze Sun, Jinming Yang, Zongzhuan Shen, Yannan Ou, Lin Fu, Yan Zhao, Rong Li, Yunze Ruan, Qirong Shen
Summary: The combination of pineapple-banana rotation and biofertilizer application has proven to be an effective strategy for suppressing banana Fusarium wilt disease. This method not only reduces disease incidence but also promotes the growth and diversity of bacterial and fungal communities. The application of biofertilizer has a greater impact on community composition compared to rotation.
Article
Biochemistry & Molecular Biology
Xingang Zhou, Jingyu Zhang, Muhammad Khashi U. Rahman, Danmei Gao, Zhong Wei, Fengzhi Wu, Francisco Dini-Andreote
Summary: Terrestrial plants can influence the recruitment of rhizosphere microbiome in adjacent plants through root exudates, potentially affecting their growth and health. This study demonstrated that intercropping with potatoonion can create a disease-suppressive rhizosphere microbiome that protects tomato plants against Verticillium wilt disease. The root exudates from potatoonion promoted the colonization of Bacillus sp., which inhibited the growth of the pathogen and induced resistance in tomato plants.
Article
Horticulture
Andrea Botero-Ramirez, Fabian Leonardo Padilla-Huertas, Stephen E. Strelkov, Celsa Garcia-Dominguez
Summary: Clubroot is a major disease of cruciferous crops in Colombia, and its distribution and epidemiology in the country are not well understood. This study found that more than half of the surveyed fields were clubroot-infested, with the highest infestation rate in Norte de Santander. Pathogen inoculum density and average temperature were both positively associated with the likelihood of field infestation.
Article
Ecology
Nicholas LeBlanc
Summary: The incorporation of plant biomass as green manures into soil can improve crop and soil health by reducing soilborne diseases. This study found that different types of green manures had diverse effects on the taxonomic composition and functional traits of soil bacterial communities. These changes may have implications for the beneficial effects of green manures on plant and soil health.
Article
Plant Sciences
Alexandri Maria Brizuela, Laura Galvez, Juan Manuel Arroyo, Silvia Sanchez, Daniel Palmero
Summary: This study aimed to identify factors influencing the efficacy of biopesticides against Fusarium wilt in asparagus and assess the efficacy of Trichoderma-based biopesticides under different conditions. The results showed that Trichoderma species inhibited the growth of Fusarium, but high temperatures and limited water availability reduced their efficacy. The findings have implications for selecting appropriate Trichoderma species for specific environmental conditions.
Review
Agronomy
Chang-Jie Jiang, Xianzhi Xie
Summary: Soybean red crown rot (RCR) is a destructive disease caused by Calonectria ilicicola. It severely affects soybean yield and quality by causing root rot, leaf senescence, defoliation, and wilting. The long survival ability and wide host range of C. ilicicola make it difficult to control, and there is currently no effective fungicide available. Breeding for resistant varieties and developing sustainable management strategies are urgently needed to combat RCR.
Review
Microbiology
Minxiao Ma, Paul W. J. Taylor, Deli Chen, Niloofar Vaghefi, Ji-Zheng He
Summary: Tomato is the second most cultivated vegetable crop globally and is grown in temperate climates. Soilborne pathogens, including bacteria, fungi, nematodes, and oomycetes, have serious impacts on tomato yield and quality. Biological control, with its high efficiency, target-specificity, sustainability, and public acceptance, has become a popular method for managing these diseases.
Article
Agronomy
Na Zhang, Shengliang Yuan, Qi Zhang, Wenze Liu, Ying Zhou, Wenxiang Yang
Summary: This research evaluates the efficacy of several fungicides against Fusarium pseudograminearum in in vitro assays. The results show that fludioxonil is the most effective fungicide. Commercially available fungicides containing fludioxonil, difenoconazole, and tebuconazole also exhibit good control efficacy in pot and field assays. Additionally, seed dressing combined with spraying shows better control and higher grain yield for FCR.
Article
Plant Sciences
Hannah M. Rivedal, Javier F. Tabima, Alexandra G. Stone, Kenneth B. Johnson
Summary: Winter squash produced in Oregon's Willamette Valley for edible seed production has suffered significant yield losses due to a soilborne disease. The disease is characterized by symptoms such as root rot, crown rot, and stem discoloration, leading to late season wilt and plant collapse. Fusarium solani was identified as the primary pathogen, but interactions between various fungi exacerbate disease severity.
Article
Biochemistry & Molecular Biology
Sara Federici, Sharon Kredo-Russo, Rafael Valdes-Mas, Denise Kviatcovsky, Eyal Weinstock, Yulia Matiuhin, Yael Silberberg, Koji Atarashi, Munehiro Furuichi, Akihiko Oka, Bo Liu, Morine Fibelman, Iddo Nadav Weiner, Efrat Khabra, Nyssa Cullin, Noa Ben-Yishai, Dana Inbar, Hava Ben-David, Julian Nicenboim, Noga Kowalsman, Wolfgang Lieb, Edith Kario, Tal Cohen, Yael Friedman Geffen, Lior Zelcbuch, Ariel Cohen, Urania Rappo, Inbar Gahali-Sass, Myriam Golembo, Vered Lev, Mally Dori-Bachash, Hagit Shapiro, Claudia Moresi, Amanda Cuevas-Sierra, Gayatree Mohapatra, Lara Kern, Danping Zheng, Samuel Philip Nobs, Jotham Suez, Noa Stettner, Alon Harmelin, Naomi Zak, Sailaja Puttagunta, Merav Bassan, Kenya Honda, Harry Sokol, Corinna Bang, Andre Franke, Christoph Schramm, Nitsan Maharshak, Ryan Balfour Sartor, Rotem Sorek, Eran Elinav
Summary: A clade of Klebsiella pneumoniae strains has been found to be strongly associated with exacerbation and severity of inflammatory bowel diseases. By generating a lytic five-phage combination targeting these strains, effective suppression of the bacteria and attenuation of inflammation can be achieved.
Article
Microbiology
Lifen Luo, Luotao Wang, Linmei Deng, Xinyue Mei, Yixiang Liu, Huichuan Huang, Fei Du, Shusheng Zhu, Min Yang
Summary: The study showed that autotoxic ginsenosides secreted by sanqi into soil could enrich beneficial microbes in the rhizosphere to degrade autotoxins and antagonize pathogens, providing a novel ecological strategy for alleviating negative plant-soil feedback.
MICROBIOLOGY SPECTRUM
(2021)
Review
Plant Sciences
Osman Z. Wohor, Nicolas Rispail, Chris O. Ojiewo, Diego Rubiales
Summary: Pea is a widely cultivated grain legume with important roles in food security. However, its production is constrained by various pests and diseases, especially rhizospheric diseases. Understanding the rhizosphere environment is crucial for improving yield stability and crop performance. Utilizing germplasm and genomic resources, combined with scientific collaboration, has contributed to improving resistance against rhizospheric diseases in pea. However, resistance is still limited, and traditional control strategies are unrealistic or unfavorable to the environment.
Article
Mechanics
Elena Marensi, Shuisheng He, Ashley P. Willis
Summary: Buoyancy forces can suppress turbulence in fluid flow through a pipe, leading to severe heat transfer deterioration, which is undesirable in both heating and cooling applications. In vertical flow, axial buoyancy forces help drive the flow. Our research shows that buoyancy can suppress the convection driven state, transitioning the flow from turbulence to a relatively quiescent state.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Microbiology
Veronica Roman-Reyna, Enora Dupas, Sophie Cesbron, Guido Marchi, Sara Campigli, Mary Ann Hansen, Elizabeth Bush, Melanie Prarat, Katherine Shiplett, Melanie L. Lewis Ivey, Joy Pierzynski, Sally A. Miller, Francesca Peduto Hand, Marie-Agnes Jacques, Jonathan M. Jacobs
Summary: Xylella fastidiosa (Xf) is a globally distributed plant-pathogenic bacterium, and conventional diagnostics are limited by known sequences and detection limits. The authors developed a metagenomics pipeline for affordable and fast Xf detection, showing versatility in different plant hosts and DNA extraction methods. This pipeline can be used for early detection of Xf and potentially extended to other plant-pathogen interactions.
Article
Agronomy
Sally A. Miller, Jorge Pinto Ferreira, Jeffrey T. LeJeune
Summary: Bactericides, fungicides, and other pesticides play a crucial role in managing plant diseases, but their use can lead to harmful residues on plants and in the environment. The increasing resistance of plant pathogens to certain chemicals, such as streptomycin and fungicides, poses a significant concern. Additionally, the rise of environmental triazole fungicide-resistant Aspergillus fumigatus, which causes aspergillosis in humans, is particularly alarming in Europe. Through horizontal gene transfer, resistance genes can be exchanged among various bacteria in the agricultural setting, including plant pathogens and zoonotic bacteria. This can result in cross-resistance and even multi-drug resistance to different compounds. To ensure food security, sustainable production, and minimize the emergence and transmission of antimicrobial-resistant organisms from horticultural sources, the responsible use of pesticides is crucial.
Article
Plant Sciences
Mitzy F. Porras, Antonino Malacrino, Chanratha An, Kim Hian Seng, Ong Socheath, George Norton, Sally Miller, Cristina Rosa, Edwin G. Rajotte, Megan E. O'Rourke
Summary: For years in Cambodia, pesticide use has been the primary method of pest management in tomato production. However, implementing an integrated pest management program has shown to significantly reduce pest damage and diseases in tomatoes. By implementing this program, tomato yield and income increased by an average of 23% and 34%, respectively.
PLANT HEALTH PROGRESS
(2022)
Article
Biotechnology & Applied Microbiology
Antonino Malacrino, Ahmed Abdelfattah, Gabriele Berg, Maria-Soledad Benitez, Alison E. Bennett, Laura Boettner, Shuqing Xu, Leonardo Schena
Summary: The science of plant microbiomes is revolutionizing concepts in plant biology, highlighting the importance of their structures and functions in protecting plants from pathogens and guiding towards sustainable production.
BIOLOGICAL CONTROL
(2022)
Article
Plant Sciences
F. Rotondo, E. Bernal, X. Ma, M. L. Lewis Ivey, F. Sahin, D. M. Francis, S. A. Miller
Summary: The study found a significant shift in Xanthomonas species associated with bacterial spot in open-field tomatoes produced in the U.S. Midwest, with X. hortorum pv. gardneri being replaced by X. perforans. While the frequency of X. perforans increased overall, some regions continued to be dominated by X. hortorum pv. gardneri. There was no significant association between fruit maturity and the isolated Xanthomonas species.
CANADIAN JOURNAL OF PLANT PATHOLOGY
(2022)
Article
Microbiology
Eduardo Bernal, Francesca Rotondo, Veronica Roman-Reyna, Taylor Klass, Sujan Timilsina, Gerald V. Minsavage, Fernanda Iruegas-Bocardo, Erica M. Goss, Jeffrey B. Jones, Jonathan M. Jacobs, Sally A. Miller, David M. Francis
Summary: Changes in the race and species composition of Xanthomonas causing bacterial spot of tomato have been observed worldwide. In this study, X. perforans was found to be the most prevalent species in processing tomato fields in the Midwest United States. Sequence variation analysis and genomic comparisons revealed that the majority of X. perforans strains collected between 2017 and 2020 in the Midwest were highly similar to strains collected in Florida in 2012. The persistence of these nearly identical strains suggests that migration has led to the establishment of an endemic population.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Plant Sciences
Ranjana Rawal, Joseph C. Scheerens, Sean M. Fenstemaker, David M. Francis, Sally A. Miller, Maria-Soledad Benitez
Summary: Trichoderma isolates have different effects on water deficit tolerance in tomatoes, with NT33 potentially relieving stress. Tomato genotypes play a role in the outcome of interactions with the tested Trichoderma isolates.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Loic Deblais, Sochina Ranjit, Claudio Vrisman, Linto Antony, Joy Scaria, Sally A. Miller, Gireesh Rajashekara
Summary: Understanding the functional role of bacterial genes in the persistence of Salmonella in plant organs can aid in the development of agricultural practices to mitigate food safety risks associated with contaminated fresh produce. This study found that a specific strain of Salmonella Typhimurium (MDD14) persisted less in tomato plants compared to other tested strains. Whole-genome sequencing identified genetic differences in MDD14, including truncated yicC and mutated rpoS, both involved in stress response and cell envelope integrity. Deleting these genes in another strain confirmed their involvement in persistence. YicC and RpoS could be potential targets to reduce Salmonella persistence in plants.
MOLECULAR PLANT-MICROBE INTERACTIONS
(2023)
Article
Agronomy
Ram B. Khadka, Andres D. Sanabria-Velazquez, John Cardina, Sally A. Miller
Summary: This study investigated the efficacy of anaerobic soil disinfestation (ASD) with different carbon sources on inactivation of weed propagules. The results showed that wheat bran was the most effective carbon source, effectively suppressing weed seed germination and viability. This approach could be adopted for weed management in organic systems or any farming system where environmentally sustainable practices are prioritized.
Article
Plant Sciences
Anna L. Testen, R. Scott Shaw, Francesca Rotondo, Margaret R. Moodispaw, Sally A. Miller
Summary: A multiplex qPCR assay was developed to detect and quantify P. lycopersici and P. terrestris, the pathogens causing corky root rot in tomatoes. The assay showed high specificity and sensitivity, making it a valuable tool for studying the biology of these pathogens and evaluating the effectiveness of disease management strategies.
Article
Plant Sciences
Francesca Rotondo, Nitika Khatri, Anna L. Testen, Sally A. Miller
Summary: This study tested the efficacy of AOMMA-Agro, an organic plant extract blend, in controlling bacterial canker and improving yield in hydroponic tomato trials. The results showed that plants treated biweekly with AOMMA-Agro had lower disease severity and higher marketable yield compared to untreated plants. This study suggests the potential use of AOMMA-Agro for bacterial canker management and yield enhancement in hydroponic tomato greenhouse production systems.
PLANT HEALTH PROGRESS
(2023)
Article
Agronomy
Daowen Huo, Timothy Frey, Laura E. Lindsey, Maria-Soledad Benitez
Summary: Farmers are becoming interested in management practices that mitigate greenhouse gas emissions due to C trading initiatives. A study in Ohio found that no-tillage and winter wheat cultivation can increase soil organic matter but may negatively affect corn yield. Farmers should evaluate the potential yield outcomes before entering into C agreements.
CROP FORAGE & TURFGRASS MANAGEMENT
(2022)
Article
Food Science & Technology
Ram B. Khadka, Sally A. Miller
Summary: The synergistic effect of anaerobic soil disinfestation (ASD) and Trichoderma spp. in suppressing Rhizoctonia root rot in radish was evaluated in this study. Results showed that disease severity and incidence were lowest in radish plants grown in ASD-treated soil amended with wheat bran, molasses, or mustard greens. Trichoderma asperellum NT25 was more effective than T22 or the non-Trichoderma control in reducing disease severity, while a combination of wheat bran and NT25 showed the best results compared to wheat bran or NT25 alone in ASD-treated soil. Additionally, interactions between Trichoderma isolates and ASD with most carbon sources were additive, with some synergistic effects observed in reducing disease severity.
FRONTIERS IN SUSTAINABLE FOOD SYSTEMS
(2021)
Article
Plant Sciences
Carrie J. Ewing, Jason Slot, Maria-Soledad Benitez, Cristina Rosa, Antonino Malacrino, Alison Bennett, Enrico Bonello
Summary: The study suggests that Beech leaf disease may not be solely caused by the nematode L. crenatae subsp. mccannii, as certain bacteria and fungi were only detected in symptomatic foliage. Differences in alpha- and beta-diversity indices for bacterial and fungal communities based on symptom type were also identified, indicating a complex relationship between various microbes and the disease.
PHYTOBIOMES JOURNAL
(2021)