Article
Plant Sciences
Gabriel O. Sacher, Carolyn F. Scagel, E. Anne Davis, Bryan R. Beck, Jerry E. Weiland
Summary: Phytophthora root rot is a destructive disease of rhododendron with different species of Phytophthora causing various levels of root rot.
Article
Plant Sciences
Natasha L. Bell, Steven N. Jeffers, Daniel R. Hitchcock, Sarah A. White
Summary: This study found that certain aquatic plant species can be infected by specific Phytophthora species in aqueous growing solutions, potentially serving as sources of inoculum in nurseries. In experiments conducted from 2016 to 2018, roots of some aquatic plants were infected with multiple Phytophthora species in water, highlighting the potential role of these plants as sources of disease in ornamental plant production.
Article
Microbiology
Hana Sevcikova, Ekaterina Malysheva, Giuliano Ferisin, Francesco Dovana, Egon Horak, Jacob Kalichman, Oguzhan Kaygusuz, Renee Lebeuf, Guillermo Munoz Gonzalez, Andrew M. Minnis, Stephen D. Russell, Michal Sochor, Balint Dima, Vladimir Antonin, Alfredo Justo
Summary: This study focused on the taxonomy of Pluteus romellii and morphologically similar species in the romellii clade of section Celluloderma. Morphological and molecular data were used to identify and classify these species. Several new species were discovered, and the current classification status of several other species was discussed.
Article
Biotechnology & Applied Microbiology
David A. Ayala-Usma, Martha Cardenas, Romain Guyot, Maryam Chaib De Mares, Adriana Bernal, Alejandro Reyes Munoz, Silvia Restrepo
Summary: This study presents the first genome-wide analysis of Phytophthora betacei and expands the genomic resources for Phytophthora infestans. It highlights the differences in genome size, transposable element activity, and phylogenetic relationships between the two species. Additionally, it provides insights into the genome biology and evolutionary history of Phytophthora species in subclade 1c.
Article
Forestry
Ricardo Silas Sanchez-Hernandez, Carmen Zulema Quinones-Perez, Jose Ciro Hernandez-Diaz, Jose Angel Prieto-Ruiz, Christian Wehenkel
Summary: Understanding hybridization is important for its impact on the success of natural regeneration and reforestation. The study found that hybrid trees exhibited similar or better growth and survival compared to pure species, and there was a significant correlation between stomatal density and growth.
Article
Forestry
Carlo Bregant, Antonio A. Mulas, Giovanni Rossetto, Antonio Deidda, Lucia Maddau, Giovanni Piras, Benedetto T. Linaldeddu
Summary: Monitoring surveys in four forest nurseries in Italy identified fourteen Phytophthora species associated with collar and root rot in Mediterranean and alpine regions. A new species, Phytophthora mediterranea, was described based on genetic and morphological analysis, showing potential threat to native Mediterranean vegetation. Discovery of Phytophthora cinnamomi in alpine nurseries suggests its expansion into colder environments due to climate change.
Article
Biotechnology & Applied Microbiology
Mariano Volonte, Lucila Traverso, Jose Manuel Latorre Estivalis, Francisca Cunha Almeida, Sheila Ons
Summary: This study performed a comparative analysis on the complement of xenobiotic detoxification gene superfamilies across five hemipteran species. The results showed that heteropterans have an expansion of detoxification enzymes compared to other species. Interestingly, the most polyphagous species analyzed here (H. halys) also has the largest repertoire of detoxification enzymes, which may be due to gene duplication events. These detoxification-related gene families play important roles in the detoxification of diet products and conferring tolerance or resistance to synthetic insecticides.
Article
Agronomy
Treena I. Burgess, Adrian Lopez-Villamor, Trudy Paap, Briony Williams, Rajah Belhaj, Michael Crone, William Dunstan, Kay Howard, Giles E. St. J. Hardy
Summary: The study compared three soil baiting methods for detecting Phytophthora species, showing that the CPSM method was superior regardless of substrate and Quercus ilex was the most attractive bait for Phytophthora cinnamomi, particularly in the CPSM method.
Article
Plant Sciences
Mahtab Moghaddam, Atsushi Ohta, Motoki Shimizu, Ryohei Terauchi, Shahrokh Kazempour-Osaloo
Summary: The complete plastome of O. gaubae was sequenced and compared with other legume species. The study identified hypervariable regions that can be used as molecular markers for phylogenetic analysis and species identification. The results reveal the dynamic nature of plastomes in the IRLC and provide new insights into plastome evolution.
Article
Biochemistry & Molecular Biology
Garland Kgosi More, Stephen Meddows-Taylor, Gerhard Prinsloo
Summary: This study aimed to determine biochemical variations in five Vachellia species and correlate their metabolite profiles to antioxidant activity. V. karroo, V. kosiensis, and V. xanthophloea demonstrated the highest radical scavenging activity among the tested species. Through advanced analytical techniques, various metabolites responsible for the observed antioxidant activity were identified, providing insights into the potential free radical scavenging activities of Vachellia species.
Article
Mycology
T. Jung, I. Milenkovic, T. Corcobado, T. Majek, J. Janousek, T. Kudlacek, M. Tomsovsky, Z. A. Nagy, A. Duran, M. Tarigan, E. Sanfuentes von Stowasser, R. Singh, M. Ferreira, J. F. Webber, B. Scanu, N. M. Chi, P. Q. Thu, M. Junaid, A. Rosmana, B. Baharuddin, T. Kuswinanti, N. Nasri, K. Kageyama, A. Hieno, H. Masuya, S. Uematsu, J. Oliva, M. Redondo, C. Maia, I. Matsiakh, V. Kramarets, R. O'Hanlon, Z. Tomic, C. M. Brasier, M. Horta Jung
Summary: In this study, 14 new Phytophthora species were discovered in natural ecosystems in Chile, Indonesia, USA (Louisiana), Sweden, Ukraine, and Vietnam through extensive surveys of global Phytophthora diversity. These new species were assigned to Phytophthora major Clade 10 based on a multigene phylogeny. The study identified three subclades within Clade 10 and revealed differences in sporangia type, breeding systems, and lifestyle among the species in each subclade.
Article
Forestry
Frans Arentz
Summary: During a systematic survey in Papua New Guinea, two new Phytophthora species were discovered and named P. heveae and P. castaneae. Genetic analysis of one of the species confirmed it as a new species and it was named Phytophthora sp. novaeguineae.
Article
Genetics & Heredity
Ana L. Vargas-Aguilar, Beatriz Yanez-Rivera, Pablo D. Vega-Garcia, Bruno Gomez-Gil
Summary: Transcriptional response regulators (TRR) are abundant signal transducers in prokaryotic systems, involved in biological processes and influenced by natural selection. Bacterial habitat and lifestyle impact the size of TRR genetic repertoire, potentially driving bacterial genome evolution.
Article
Agronomy
Haizheng Xiong, Yilin Chen, San-Ji Gao, Yong-Bao Pan, Ainong Shi
Summary: This study assessed the genetic diversity and population structure of 196 Saccharum accessions, including various species and hybrids, using multiple analysis methods. The results showed that different species of sugarcane merged together, and specific alleles were important for sugarcane breeding and species identification. These findings provide valuable information for future genetic research and utilization of sugarcane germplasm resources.
Article
Multidisciplinary Sciences
Jiajing Sheng, Xuan She, Xiaoyu Liu, Jia Wang, Zhongli Hu
Summary: This study systematically analyzed the codon usage patterns of Miscanthus plants and related species, revealing a preference for A/T bases and A/T-ending codons in the chloroplast genomes. The results suggested that the codon usage patterns are mainly influenced by natural selection, and Arabidopsis thaliana, Populus trichocarpa, and Saccharomyces cerevisiae could be considered as preferential exogenous expression receptors.
Article
Forestry
Hoa Thanh Duong, Richard Mazanec, Jennifer A. McComb, Treena Burgess, Giles E. St J. Hardy
Summary: This study assessed the damage and growth of Corymbia calophylla trees caused by Quambalaria shoot blight (QSB) disease and found that the genetic factors of the tree's origin significantly influenced its resistance to QSB. Provenances from cooler wetter regions showed higher resistance. Additionally, fast-growing families were less affected by QSB disease.
TREE GENETICS & GENOMES
(2022)
Article
Forestry
Trudy Paap, Michael J. Wingfield, Treena Burgess, John R. U. Wilson, David M. Richardson, Alberto Santini
Summary: The study proposes a modified version of the Unified Framework for Biological Invasions to better investigate invasive forest pathogens. By integrating forest pathology and invasion science, a clearer understanding of how microorganisms spread and progress can be achieved, leading to more effective prevention and mitigation of invasions. The study calls for the incorporation of ecological and evolutionary concepts to address the complex challenges of identifying and managing invasive forest pathogens.
CURRENT FORESTRY REPORTS
(2022)
Article
Microbiology
Qurrat Ul Ain Farooq, Giles Edward St. John Hardy, Jen A. McComb, Peter Campbell Thomson, Treena Isobel Burgess
Summary: This study investigated the plant growth and responses of the microbial profile in the rhizosphere soil and root endosphere of avocado plants infested or not infested with Phytophthora cinnamomi. The findings showed that applying phosphite or mineral mulch to the soil can reduce root growth and visible root damage in infested plants. Bacterial abundance and diversity were reduced in the infested rhizosphere and root endosphere, but the presence or absence of mineral mulch resulted in greater diversity and larger differences in rhizosphere community composition. Actinobacteria and Proteobacteria had higher abundance in the presence of Phytophthora. The addition of silicate-based mineral mulch can protect against Phytophthora root rot through changes in rhizosphere bacterial community composition, while the changes induced by spraying plants with phosphite are different from those resulting from the application of mineral mulch to the soil.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Iva Franic, Simone Prospero, Kalev Adamson, Eric Allan, Fabio Attorre, Marie Anne Auger-Rozenberg, Sylvie Augustin, Dimitrios Avtzis, Wim Baert, Marek Barta, Kenneth Bauters, Amani Bellahirech, Piotr Boron, Helena Braganca, Tereza Brestovanska, May Bente Brurberg, Treena Burgess, Daiva Burokiene, Michelle Cleary, Juan Corley, David R. Coyle, Gyorgy Csoka, Karel Cerny, Kateryna Davydenko, Maarten de Groot, Julio Javier Diez, H. Tugba Dogmus Lehtijarvi, Rein Drenkhan, Jacqueline Edwards, Mohammed Elsafy, Csaba Bela Eotvos, Roman Falko, Jianting Fan, Nina Feddern, Agnes Furjes-Miko, Martin M. Gossner, Bartlomiej Grad, Martin Hartmann, Ludmila Havrdova, Miriam Kadasi Horakova, Marketa Hrabetova, Mathias Just Justesen, Magdalena Kacprzyk, Marc Kenis, Natalia Kirichenko, Marta Kovac, Volodymyr Kramarets, Nikola Lackovic, Maria Victoria Lantschner, Jelena Lazarevic, Marianna Leskiv, Hongmei Li, Corrie Lynne Madsen, Chris Malumphy, Dinka Matosevic, Iryna Matsiakh, Tom W. May, Johan Meffert, Duccio Migliorini, Christo Nikolov, Richard O'Hanlon, Funda Oskay, Trudy Paap, Taras Parpan, Barbara Piskur, Hans Peter Ravn, John Richard, Anne Ronse, Alain Roques, Beat Ruffner, Karolis Sivickis, Carolina Soliani, Venche Talgo, Maria Tomoshevich, Anne Uimari, Michael Ulyshen, Anna Maria Vettraino, Caterina Villari, Yongjun Wang, Johanna Witzell, Milica Zlatkovic, Rene Eschen
Summary: International trade and climate change are major factors contributing to the spread of damaging tree pests. This study presents a large-scale assessment of tree-associated fungi and insects, revealing the diversity of these taxa across different geographic and climatic gradients. The dataset generated will facilitate further research on the distribution of fungal endophytes and insects in trees.
Article
Agronomy
Mohammed Y. Khdiar, Treena Burgess, Paul A. Barber, Giles E. St J. Hardy
Summary: Species in the genus Phytophthora can cause significant economic losses to crops and damage to natural ecosystems. Phosphite is currently the most effective chemical for disease management, but excessive concentrations can be harmful. This study tested two new metal chelates and phosphite for their efficacy against Phytophthora cinnamomi, and found that Ca chelate showed superior results in controlling the pathogen.
Article
Plant Sciences
Qurrat Ul Ain Farooq, Jen McComb, Giles E. St. J. Hardy, Treena Burgess
Summary: The ability of different soil additives, such as organic, microbial, or mineral-based, to suppress root rot caused by Phytophthora cinnamomi was compared with the effectiveness of the fungicides phosphite or metalaxyl. The impact of glyphosate, a commonly used herbicide, on plant health was also investigated. The results showed that phosphite and silicate-based mulch had a significant inhibitory effect on root rot, while a microbial-based conditioner also showed some benefits. However, the chemical treatment with metalaxyl had negative impacts on plant growth and root health, and glyphosate had inhibitory effects on avocado plants.
AUSTRALASIAN PLANT PATHOLOGY
(2023)
Correction
Plant Sciences
Qurrat Ul Ain Farooq, Jen McComb, Giles St. J. E. Hardy, Treena Burgess
AUSTRALASIAN PLANT PATHOLOGY
(2023)
Article
Agronomy
Suchana R. Sarker, Jen McComb, Giles E. St. J. Hardy, Treena I. Burgess
Summary: More Phytophthora species can be detected from environmental samples using DNA metabarcoding compared to isolation by baiting. Baiting small volumes of non-bulked soil samples resulted in the recovery of more Phytophthora species than baiting large volumes of bulked soils. Metabarcoding of asymptomatic baits detected additional species that were not isolated from lesioned baits. The combination of baiting small samples and metabarcoding of asymptomatic baits yielded the highest number of total species detected.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Mycology
Quynh N. Dang, Treena I. Burgess, Jen McComb, Thu Q. Pham, Binh V. Le, Thang V. Tran, Loan T. Nguyen, Giles E. St. J. Hardy
Summary: Endophytes from healthy cinnamon trees were isolated and screened for their antagonistic activity against Phytophthora root rot pathogens. Seventeen endophytes showed high levels of in vitro antagonism and were tested in a glasshouse study. Three endophytes, Penicillium citrinum, Xylaria curta and Clonostachys rosea, exhibited disease suppression and plant growth promotion in cinnamon seedlings.
MYCOLOGICAL PROGRESS
(2023)
Review
Mycology
Suchana R. Sarker, Treena I. Burgess, Giles E. St. J. Hardy, Jen McComb
Summary: This review examines the discrepancy between the high numbers of Phytophthora species and putative new species identified through metabarcoding of environmental samples, compared to the low number cultured and identified through baiting. Possible reasons for this discrepancy include incorrect identification of variants in young hybrid species, preferences of baiting conditions for fast-growing parasitic species, and the slow growth and sporulation of certain species when baited.
MYCOLOGICAL PROGRESS
(2023)
Article
Ecology
Bruce G. Marcot, Peter Scott, Treena I. Burgess
Summary: We compiled a database of 32 traits on 204 species of Phytophthora and calculated the potential invasiveness of 103 better studied species. Using a Bayesian network model, we predicted the degree and probability of invasiveness of individual Phytophthora species. This modeling approach can be used for other pests and pathogens to advise land and resource managers in preventing potential invasions.
Article
Plant Sciences
Himbutugoda Shanika Harshani, Jen McComb, Treena I. Burgess, Giles E. St. J. Hardy
Summary: This study evaluates the resistance of several native species to Phytophthora cinnamomi at the early stages of plant development. Results showed that out of 38 species analyzed, 9 species were not affected, 14 species had decreased emergence or survival, and 15 species had significant decreases in both emergence and survival. These results suggest that resistance recorded from mature plants may not be present in seedlings, and thus data from mature plants should not be used when selecting species for seed-based restoration.
AUSTRALASIAN PLANT PATHOLOGY
(2023)
Article
Mycology
Duccio Migliorini, Maria Vivas, Michael J. Wingfield, Christopher Shaw, Treena I. Burgess
Summary: The Proteaceae family, known for its susceptibility to Phytophthora cinnamomi, was studied using a metabarcoding approach. Results showed that geographical regions influenced the richness and community composition of oomycetes. Orchards had a higher abundance of P. cinnamomi compared to natural stands. Metabarcoding served as an early detection tool but cannot be used for diagnostic purposes.
MYCOLOGICAL PROGRESS
(2023)
Article
Multidisciplinary Sciences
Iva Franic, Eric Allan, Simone Prospero, Kalev Adamson, Fabio Attorre, Marie-Anne Auger-Rozenberg, Sylvie Augustin, Dimitrios Avtzis, Wim Baert, Marek Barta, Kenneth Bauters, Amani Bellahirech, Piotr Boron, Helena Braganca, Tereza Brestovanska, May Bente Brurberg, Treena Burgess, Daiva Burokiene, Michelle Cleary, Juan Corley, David R. Coyle, Gyoergy Csoka, Karel Cerny, Kateryna Davydenko, Maarten de Groot, Julio Javier Diez, H. Tugba Dogmus Lehtijaervi, Rein Drenkhan, Jacqueline Edwards, Mohammed Elsafy, Csaba Bela Eoetvoes, Roman Falko, Jianting Fan, Nina Feddern, Agnes Fuerjes-Miko, Martin M. Gossner, Bartlomiej Grad, Martin Hartmann, Ludmila Havrdova, Miriam Kadasi Horakova, Marketa Hrabetova, Mathias Just Justesen, Magdalena Kacprzyk, Marc Kenis, Natalia Kirichenko, Marta Kovac, Volodymyr Kramarets, Nikola Lackovic, Maria Victoria Lantschner, Jelena Lazarevic, Marianna Leskiv, Hongmei Li, Corrie Lynne Madsen, Chris Malumphy, Dinka Matosevic, Iryna Matsiakh, Tom W. May, Johan Meffert, Duccio Migliorini, Christo Nikolov, Richard O'Hanlon, Funda Oskay, Trudy Paap, Taras Parpan, Barbara Piskur, Hans Peter Ravn, John Richard, Anne Ronse, Alain Roques, Beat Ruffner, Alberto Santini, Karolis Sivickis, Carolina Soliani, Venche Talgo, Maria Tomoshevich, Anne Uimari, Michael Ulyshen, Anna Maria Vettraino, Caterina Villari, Yongjun Wang, Johanna Witzell, Milica Zlatkovic, Rene Eschen
Summary: Non-native pests, climate change, and their interactions can alter relationships between trees and tree-associated organisms, with consequences for forest health. Factors such as mean annual temperature, phylogenetic distance between hosts, and geographic distance between locations play a crucial role in shaping tree-associated communities. The increasing importance of high temperatures suggests that climate change may directly and indirectly affect tree-associated organisms. Furthermore, host range shifts and human-mediated transport contribute to the emergence and spread of new pests. It is vital to limit the establishment of tree pests and enhance the resilience of forest ecosystems to climate change.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Clement E. Gille, Patrick M. Finnegan, Patrick E. Hayes, Kosala Ranathunge, Treena I. Burgess, Felix de Tombeur, Duccio Migliorini, Paul Dallongeville, Gaetan Glauser, Hans Lambers
Summary: Nonmycorrhizal plants enhance the defense of mycorrhizal plants against soil-borne pathogens through their symbiosis, and ectomycorrhizal fungi play a vital role in the interactions between mycorrhizal and nonmycorrhizal plants in severely P-impoverished environments.