Article
Engineering, Environmental
Wangjun She, Qi Xiao, Ying Meng, Peng Zhao, Chuanliang Wu, Feng Huang, Minmin Cai, Jibin Zhang, Ziniu Yu, Kashif Ur Rehman, Donghai Peng, Longyu Zheng
Summary: The black soldier fly larvae can convert organic waste into valuable products, but scaling up production has led to health risks for the insects, such as larval soft rot. This study identified the responsible pathogen and found that it caused mortality and hindered larval development. The research also revealed the impact of temperature and substrate moisture on the mortality rate.
Article
Horticulture
Habibeh Hajian-Maleki, Sareh Baghaee-Ravari, Mohammad Moghaddam
Summary: The study found that plant-derived compounds, specifically Myrtus communis and Ferula gummosa essential oils, showed strong antibacterial activity against Pectobacterium carotovorum subsp. carotovorum. The combination of the two essential oils also exhibited synergistic interactions against the pathogens.
SCIENTIA HORTICULTURAE
(2021)
Article
Biotechnology & Applied Microbiology
Gal Sason, Edouard Jurkevitch, Amos Nussinovitch
Summary: This research developed a kappa-carrageenan-based encapsulation system to release predators for preventing soft-rot infections. The encapsulated predators efficiently preyed on soft rot bacteria and had higher survival rates after drying.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Agronomy
Thais Regina Pintino De Almeida, Iwanne Lima Coelho, Leirson Salvador Bezerra Vasconcelos, Elder Felipe De Moura Silva, Leticia Rebeca De Araujo Barros, Maria Aparecida Pontes, Tarciana Silva Dos Santos, Willie Anderson Dos Santos Vieira, Marcos Paz Saraiva Camara, Delson Laranjeira
Summary: Colonies resembling Nigrospora were found in sweet potato plants affected by foot rot disease in Lagoa dos Gatos, Brazil. Inoculation of these isolates in sweet potato tubers resulted in similar symptoms, with brown lesions turning black and yellowing of leaves. Morphological and phylogenetic analyses confirmed the presence of Nigrospora vesicularifera, marking its first identification in sweet potato and its first record as a pathogen in Brazil.
Article
Plant Sciences
M. Belen Suarez, Marta Diego, Francisco J. Feria, Manuel J. Martin-Robles, Sergio Moreno, Jose Luis Palomo
Summary: This study developed a new PCR assay to accurately identify the causal agent of potato soft rot disease, improving the specificity and accuracy of diagnosis.
Article
Microbiology
Zhenhe Su, Xiaomeng Liu, Qinggang Guo, Lifeng Xuan, Xiuyun Lu, Lihong Dong, Xiaoyun Zhang, Peipei Wang, Weisong Zhao, Yuanhang Qu, Shezeng Li, Ping Ma
Summary: In this study, the pathogenicity of two pectinolytic strains of Pectobacterium spp. (P. brasiliense and P. carotovorum) was investigated. The results showed that P. carotovorum had higher cell wall-degrading enzyme activities and caused more severe disease symptoms in potato tubers compared to P. brasiliense. The pathogenicity of both strains increased with temperature. Furthermore, coinoculation of P. carotovorum with P. brasiliense resulted in more severe pathogenicity, especially when P. carotovorum had a bacterial number advantage at the beginning. These findings provide new insights into the pathogenicity caused by mixed infections of different Pectobacterium spp.
MICROBIOLOGICAL RESEARCH
(2022)
Article
Plant Sciences
Zhiyao Mao, Yang Ge, Yadong Zhang, Jian Zhong, Asim Munawar, Zengrong Zhu, Wenwu Zhou
Summary: In this study, the researchers analyzed the early defense responses of potato leaves to potato tuber moth (PTM) herbivory. They found that simulated and actual herbivory triggered similar hormonal and transcriptional responses in the plants. Microbes associated with PTM herbivory were found to regulate the phytohormones jasmonic acid (JA) and abscisic acid (ABA). Additionally, seven gene modules were identified to explain how potato plants respond to different PTM herbivory stimuli.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Microbiology
Jan van der Wolf, Marjon Krijger, Odette Mendes, Viola Kurm, Jack Gros
Summary: This two-year survey conducted in the Netherlands collected information on the infection incidence of blackleg-causing soft rot Pectobacteriaceae (BL-SRP) in potato crops. The survey found high infection incidences with BL-SRP in potatoes at the end of the growing season, with infections occurring in either tubers or leaves.
Article
Agronomy
Noe Leonardo Palafox-Leal, Jesus Christopher Castillo Batista, Maria Elena Santos-Cervantes, Jesus Mendez-Lozano, Edgar Antonio Rodriguez-Negrete, Libnih Abdeel Cervantes-Cardenas, Norma Elena Leyva-Lopez
Summary: This study identified Pectobacterium punjabense as a threat to potato cultivation in Mexico, causing soft rot and blackleg symptoms. Biochemical and molecular analysis showed 13 out of 51 isolates collected from potato plants belonged to P. punjabense. Evaluation of control strategies revealed that biological control using Trichoderma harzianum (T-22) was the most effective treatment.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Agronomy
Viola Kurm, Odette Mendes, Jack Gros, Jan van der Wolf
Summary: This study investigated whether potato seed lots of the same cultivar from different fields, inoculated with the same density of Soft rot Pectobacteriaceae (SRP) and planted in the same field, showed differences in blackleg disease incidence, and if these differences were correlated with the microbial community composition in tuber and the soil where the mother tubers were grown. It was found that tubers from seed lots with a high disease incidence had a different microbial community composition than those from seed lots with a low disease incidence.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Agronomy
Nasibeh Mohammad-Nejad Aghdam, Sareh Baghaee-Ravari, Ali Shiri
Summary: This study evaluates the potential of an endophytic strain of Pseudomonas brassicacearum (EnPb) as a biocontrol agent for potato-Pcc patho-system, demonstrating its ability to reduce post-harvest disease incidence through the production of anti-Pcc compounds and volatile organic compounds.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Microbiology
Filip Beno, Iveta Horsakova, Martin Kmoch, Karel Petrzik, Gabriela Kratka, Rudolf Sevcik
Summary: The protective effect of bacteriophage suspensions on phytopathogenic bacteria causing soft rot of potato tubers was observed in ex vivo and in vitro experiments. The inhibitory effects of phages were confirmed in experiments on potato slices, where suppression of rot development was evident. However, no inhibitory effect of phages against bacteria was observed in the in vitro experiment.
Article
Food Science & Technology
Jifeng Wu, Jingzhen Zhang, Wenrong Ni, Ximing Xu, Melvin Sidikie George, Guoquan Lu
Summary: The impact of heat treatment at 35 degrees Celsius for 24 hours on the quality characteristics and disease resistance of two sweet potato varieties was investigated. It was found that heat treatment enhanced the structural characteristics and disease resistance of sweet potato.
Article
Immunology
Richard Osei, Chengde Yang, Lingxiao Cui, Ting Ma, Zhezhe Li, Solomon Boamah
Summary: This study isolated and identified a newly discovered L. amnigena from rotten potato tubers in Lanzhou City, China. The strain was found to induce soft rot disease on potato tubers, and phylogenetic analysis showed its close relationship to L. amnigena strains from other sources. This is the first report of L. amnigena causing soft rot on potato tubers in China.
MICROBIAL PATHOGENESIS
(2022)
Article
Plant Sciences
Anna A. Lukianova, Peter V. Evseev, Alexander A. Stakheev, Irina B. Kotova, Sergey K. Zavriev, Alexander N. Ignatov, Konstantin A. Miroshnikov
Summary: Pectobacterium parmentieri is a plant-pathogenic bacterium that infects potatoes worldwide, requiring specific and sensitive detection methods. The developed real-time PCR protocol with a TaqMan probe showed high sensitivity and specificity for P. parmentieri, providing insights into its distribution and host range.
Article
Microbiology
Merete Wiken Dees, Erik Lysoe, Simeon Rossmann, Juliana Perminow, May Bente Brurberg
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2017)
Article
Agronomy
Simeon Rossmann, Merete Wiken Dees, Torfinn Torp, Vinh Hong Le, Monica Skogen, Borghild Glorvigen, Jan van der Wolf, May Bente Brurberg
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2020)
Article
Microbiology
Simeon Rossmann, Erik Lysoe, Monica Skogen, Venche Talgo, May Bente Brurberg
Summary: DNA metabarcoding was used to detect and identify oomycetes in soil from internationally shipped plants, showing the widespread presence of potentially plant pathogenic Phytophthora and Pythium species. The study demonstrates the potential of using environmental DNA (eDNA) and metabarcoding as a standalone phytosanitary assessment tool for broad detection and identification of plant pathogenic oomycetes.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Genetics & Heredity
Natasha Sant'Anna Iwanicki, Ana Beatriz Riguetti Zanardo Botelho, Ingeborg Klingen, Italo Delalibera Junior, Simeon Rossmann, Erik Lysoe
Summary: The genus Metarhizium consists of species used in agricultural pest control programs and has both insect pathogens and plant growth-promoting endophytes. This study sequenced the genome of a newly described species, M. humberi, and compared it to other Metarhizium species. The genome analysis revealed unique traits and provided insights into the broad host range and potential biological functions of M. humberi.
G3-GENES GENOMES GENETICS
(2022)