Article
Microbiology
Elena Petrovic, Karolina Vrandecic, Dario Ivic, Jasenka Cosic, Sara Godena
Summary: Olive is an important crop in the Mediterranean part of Croatia. Dieback symptoms were observed in two olive orchards in Istria, Croatia, and the isolated fungi were identified as Cytospora sp. Through molecular analysis, the isolates were identified as Cytospora pruinosa Defago. Pathogenicity tests confirmed that C. pruinosa is causing olive branch and fruit dieback in Croatia.
Article
Plant Sciences
Giorgio Gusella, Daniel P. Lawrence, Dalia Aiello, Yong Luo, Giancarlo Polizzi, Themis J. Michailides
Summary: This study investigated the occurrence of diseases in pistachio orchards in Italy and identified three fungal species in the Botryosphaeriaceae family. Pathogenicity tests revealed that Neofusicoccum hellenicum and N. mediterraneum were the most aggressive species. This is the first report of N. hellenicum in Italy.
Article
Forestry
Marta Kovac, Danko Diminic, Sasa Orlovic, Milica Zlatkovic
Summary: Sequoiadendron giganteum, a long-lived tree species with massive size and beauty, is susceptible to die-back disease caused by Botryosphaeria dothidea and Neofusicoccum yunnanense in Zagreb, Croatia. The latter fungus, N. yunnanense, showed higher aggressiveness in causing cankers and die-back in this study, highlighting the need for disease management strategies in Croatian landscapes where S. giganteum is a valuable ornamental tree.
Article
Multidisciplinary Sciences
Zahra Zaeimian, Khalil-Berdi Fotouhifar
Summary: This study reports the first global report of Neoscytalidium dimidiatum causing leaf blight disease on Clivia miniata and Clivia nobilis. The presence of Scytalidium-like fungus was confirmed through isolation, morphological investigation, and gene sequence analysis. Pathogenicity tests on the host plants further supported the identification of N. dimidiatum.
SCIENTIFIC REPORTS
(2023)
Article
Ecology
Tod D. D. Ramsfield, Nicolas Feau, Philippe Tanguay, Richard C. C. Hamelin, Padmini Herath, Toso Bozic
Summary: In June, 2021, a Melampsora sp. was found infecting laurel willow (Salix pentandra) near Slave Lake, Alberta. This was the first known case of a Melampsora species infecting not just leaves, but also catkins and stems in Canada. The pathogen was identified as M. epitea through DNA sequencing and phylogenetic analysis, and it was found to have a high level of sequence identity with Melampsora spp. collected from different regions in Canada. This discovery highlights the importance of vigilance among willow growers to prevent potential damages caused by this pathogen.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2023)
Article
Forestry
Cristina Zamora-Ballesteros, Brenda D. Wingfield, Michael J. Wingfield, Jorge Martin-Garcia, Julio J. Diez
Summary: This study analyzed the potential residual effect on the host transcriptome caused by the disappearance of a mycovirus in the pathogenic fungus Fusarium circinatum. The results showed a slight acceleration in host metabolism after losing the mycovirus, possibly related to cell cycle regulation and amino acid metabolism.
Article
Horticulture
Melissa Munoz, Logan E. Behnke, James E. Faust, Guido Schnabel
Summary: Cut roses are valuable ornamentals, but their profitability is dependent on postharvest performance. Bent neck symptoms in roses, caused by physiological disorders, bacteria accumulation, and Botrytis cinerea infection, make them unmarketable. This research identified Sclerotinia sclerotiorum as the causal agent of rose bent neck symptoms. Considering S. sclerotiorum incidence is important to prevent outbreaks when observing bent neck symptoms.
Article
Biochemistry & Molecular Biology
Bingce Wang, Yushan Guo, Xuetang Chen, Jiling Ma, Xia Lei, Weizhen Wang, Youhua Long
Summary: In this study, Bacillus velezensis WL-23, isolated from the leaf microbial community of kiwifruit, showed excellent inhibitory activity against the main fungal and bacterial pathogens of kiwifruit. Indoor confrontation experiments and various tests suggested that WL-23 effectively inhibited the growth of Pseudomonas syringae pv. actinidiae (Psa) and reduced canker incidence in kiwifruit. Therefore, WL-23 has the potential to become a biological control agent and contribute to sustainable agriculture.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Infectious Diseases
Yu-Rim Song, Nguyen Trung Vu, Jungkum Park, In Sun Hwang, Hyeon-Ju Jeong, Youn-Sup Cho, Chang-Sik Oh
Summary: The bacteriophage PPPL-1 shows promising antibacterial activity against Pseudomonas syringae pv. actinidiae (Psa) and could potentially be used as a biocontrol agent to effectively control bacterial canker disease in kiwifruit plants, including resistant isolates. PPPL-1 is stable in field soil and at low temperatures, making it a practical tool for agricultural applications. Further research is needed to explore the full potential of PPPL-1 in controlling Psa infections in kiwifruit orchards.
Article
Agronomy
Nam Q. Pham, Seonju Marincowitz, Myriam Solis, Tuan A. Duong, Brenda D. Wingfield, Irene Barnes, Bernard Slippers, Jupiter I. Muro Abad, Alvaro Duran, Michael J. Wingfield
Summary: In 2014, a new and serious leaf and shoot disease of Eucalyptus plantations appeared in North Sumatra, Indonesia. The disease, named Eucalyptus scab and shoot malformation, is caused by a previously undescribed fungus species in Elsinoe.
Article
Plant Sciences
Yongjun Wang, Wenbin Wu, Liqin Zhang, Hong Jiang, Li Mei
Summary: Drought predisposes Carya cathayensis to infection by Botryosphaeria dothidea through the accumulation of amino acids in the host plant. Our study provides the first analysis of how drought affects plant-pathogen interactions and proposes a model for understanding this relationship.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Agronomy
Milad Aeini, Mohamad Hamed Ghodoum Parizipour, Mitra Omidi Nasab, Maede Heidari, Amal Fazliarab
Summary: Pistachio canker caused by Pantoea agglomerans was observed on pistachio trees in Lorestan province, western Iran. The symptoms included tree weakness, brown to black lesions, canker, and exudation of black sap. This is the first report of pistachio canker caused by P. agglomerans.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Public, Environmental & Occupational Health
Chang Liu, Lei Zhang, Lili Liu, Ye Wang, Yanhui Cui, Tianwei Liang, Tianming Chen, Yongqiang Jiang, Gang Liu, Li Li
Summary: In this study, we report a case of Nocardia endophthalmitis in a 3-year-old child who suffered from a rupture in the left eye. The infection was initially considered to be caused by fungal pathogens, but later identified as Nocardia huaxiensis through culturation and next-generation sequencing. The infection was successfully controlled with medication, and the patient's ocular inflammation improved gradually. Intraocular lens (IOL) implantation is planned for better vision in the future.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Food Science & Technology
Mohammad Hojjati, Samira Shahbazi, Hamed Askari, Abdorreza Mohammadi Nafchi, Mina Makari
Summary: Brown spot formation is a common quality problem in Iranian hazelnuts, characterized by necrosis and sloughing off of the pellicle and sunken surface lesions. The infected hazelnut samples showed higher total phenol content and antioxidant activity compared to non-infected samples. The infection also affected soluble protein content, color parameters, and fatty acids composition. The presence of a yeast-like fungus, Eremothecium coryli, was identified as the causative agent of the brown spots, and this is the first report of its occurrence in hazelnuts in Iran.
Article
Agronomy
Xiang-rong Zheng, Cheng-long Liu, Mao-jiao Zhang, Xu-lan Shang, Sheng-zuo Fang, Feng-mao Chen
Summary: Cyclocarya paliurus, a medicinal plant native to China, has been affected by severe foliar blight caused by the new phytopathogen Nigrospora sphaerica. The study confirmed the characteristics of the pathogenic fungus and found that high temperatures and humidity could promote its growth and infection.
Editorial Material
Plant Sciences
V Longone, G. Escoriaza, M. Paolinelli, D. Gramaje
Article
Plant Sciences
Francisco Beluzan, Xavier Miarnau, Laura Torguet, Lourdes Zazurca, Paloma Abad-Campos, Jordi Luque, Josep Armengol
Summary: Twenty-five almond cultivars were assessed for susceptibility to Diaporthe amygdali, and all evaluated cultivars were found to be susceptible to the inoculated isolates of the pathogen. Blooming and ripening times were found to be relevant variables explaining cultivar performance related to D. amygdali susceptibility.
Editorial Material
Plant Sciences
Jordi Cabrefiga, Daniel Piza, Pere Vilardell, Jordi Luque
Article
Microbiology
David Gramaje, Ales Eichmeier, Milan Spetik, Maria Julia Carbone, Rebeca Bujanda, Jessica Vallance, Patrice Rey
Summary: Rootstocks are crucial in grapevine propagation, and fungal communities in the vascular system of grapevine rootstocks vary between different stages. Some fungi may benefit grapevine growth, while others may lead to grapevine diseases.
Article
Plant Sciences
Francisco Beluzan, Josep Armengol, Paloma Abad-Campos
Summary: This study aimed to evaluate the pathogenicity of 12 soilborne oomycete species on three Prunus hybrid rootstocks, and found significant differences in virulence among different species and isolates.
Article
Plant Sciences
Milan Spetik, Akila Berraf-Tebbal, David Gramaje, Alla Eddine Mahamedi, Katerina Stuskova, Jana Burgova, Ales Eichmeier
Summary: During a survey in the Czech Republic, Paecilomyces-like strains were isolated from the root of Clematis. Phylogenetic analysis based on molecular data revealed the position of these isolates, and a new species with unique morphological characteristics was described.
Article
Multidisciplinary Sciences
Carla Rodriguez, Enrique Garcia-Caurel, Teresa Garnatje, Mireia Serra i Ribas, Jordi Luque, Juan Campos, Angel Lizana
Summary: This paper highlights the potential of using polarimetric methods for the inspection of plant diseased tissues and shows the accuracy of depolarizing observables in discriminating between healthy and diseased plant tissues. By studying different plant specimens with various disease symptoms and infection stages, the depolarizing information of vegetal tissues is demonstrated to enhance the image contrast between healthy and diseased tissues.
SCIENTIFIC REPORTS
(2022)
Article
Agronomy
Catarina Leal, David Gramaje, Florence Fontaine, Nicolas Richet, Patricia Trotel-Aziz, Josep Armengol
Summary: Grapevine trunk diseases (GTDs) cause significant economic losses in wine-producing countries. Researchers conducted nursery experiments using Trichoderma atroviride (Ta) SC1 and Bacillus subtilis (Bs) PTA-271, alone and in combination, to study their biocontrol effect on GTD pathogens. The results showed that these biological treatments reduced the infection rate and fungal isolation of GTD pathogens in grapevine nursery material.
PEST MANAGEMENT SCIENCE
(2023)
Article
Agriculture, Multidisciplinary
Moises Bento Tavares, Andreia Mitsa Paiva Negreiros, Allinny Luzia Alves Cavalcante, Sara Hellen Fernandes de Oliveira, Josep Armengol, Rui Sales Junior
Summary: With the discovery of five new species of Monosporascus genus, it has become important to understand the impact of these fungi on cultivated plants. This study aimed to evaluate their pathogenicity in non-cucurbitaceous cultures.
REVISTA CIENCIA AGRONOMICA
(2023)
Article
Agriculture, Multidisciplinary
Gemma Pons-Sole, Xavier Miarnau, Laura Torguet, Elena Lazaro, Antonio Vicent, Jordi Luque
Summary: This study investigated the dynamics of airborne ascospores and disease progress of red leaf blotch (RLB) of almond caused by Polystigma amygdalinum in two almond orchards in Lleida, NE Spain from 2019 to 2021. The results showed that airborne ascospores were mainly detected from April to June, with variable yearly cumulative concentrations. Positive correlations were found between the weekly proportion of airborne ascospores and various weather variables, while negative correlations were found with certain thermal variables. The cumulative proportion of ascospores was positively correlated with RLB incidence and severity. Weekly variations in RLB incidence and severity were positively correlated with the number of warm days and negatively correlated with the number of mild days.
ANNALS OF APPLIED BIOLOGY
(2023)
Article
Optics
Jose J. Gil, Ignacio San Jose, Monica Canabal-Carbia, Irene Estevez, Emilio Gonzalez-Arnay, Jordi Luque, Teresa Garnatje, Juan Campos, Angel Lizana
Summary: Polarimetric techniques are widely used in various applications such as remote sensing, material characterization, astronomy, and biological tissue inspection. This study demonstrates the use of polarimetric observables derived from the arrow decomposition of the Mueller matrix for enhancing imaging visualization. The results show improved visualization and the potential for applications in biophotonics imaging and biomedical and botanical fields.
Correction
Horticulture
Laura Torguet, Lourdes Zazurca, Guillem Martinez, Gemma Pons-Sole, Jordi Luque, Xavier Miarnau
Article
Forestry
Giovanni Bortolami, Nathalie Ferrer, Kendra Baumgartner, Sylvain Delzon, David Gramaje, Laurent J. Lamarque, Gianfranco Romanazzi, Gregory A. Gambetta, Chloe E. L. Delmas
Summary: Xylem anatomy is influenced by environmental and biotic stresses. Vascular occlusions are observed in leaves and contribute to the plant's response to different stresses. This study examines the occurrence and function of vascular occlusions in grapevine leaves with various symptoms, revealing higher amounts of occlusions in leaves with the esca disease compared to other symptoms. The relationship between occlusions and esca symptoms was investigated across different countries and cultivars, highlighting the unique impact of occlusions on leaf physiology.
Article
Horticulture
Laura Torguet, Lourdes Zazurca, Guillem Martinez, Gemma Pons-Sole, Jordi Luque, Xavier Miarnau
Summary: Red leaf blotch (RLB) is an important foliar disease of almond trees, particularly in the Mediterranean basin and Spain. The control of this disease is challenging due to long infection and latency periods and limited registered fungicides. Field trials conducted in Spain from 2015 to 2019 showed that systemic fungicides performed better than contact and penetrant products, with up to 90% control against RLB. Application strategies based on specific meteorological conditions were found to be as effective as calendar-based treatments but with fewer applications.
