Article
Microbiology
Helene Kile, Dawn Arnold, Joel Allainguilaume, Sandra Denman, Carrie Brady
Summary: A previously undescribed bacterial species, belonging to the genus Brenneria, was isolated from infected mature Tilia hybrid trees in the UK. The strains showed significant differences from the closest phylogenetic relatives in genetic sequencing, phylogenetic analysis, and phenotypic and chemotaxonomic assays, suggesting that they represent a novel species within the genus Brenneria.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Forestry
N. Barsoum, Stuart W. A'Hara, Joan E. Cottrell, Jack Forster, Mateo San Jose Garcia, Karsten Schonrogge, Liz Shaw
Summary: Based on a study in southern England, it was found that there are differences in the composition and functional exploration types of ECM communities between AOD symptomatic and asymptomatic oak trees, which are related to soil physico-chemical effects but not directly linked to the frequency of fine root tips. The ECM diversity and composition were not affected by the tree symptom status but varied between different woodlands, possibly due to differences in soil chemistry variables.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Plant Sciences
Katarina Gasic, Nevena Zlatkovic, Nemanja Kuzmanovic
Summary: Serious outbreaks of walnut deep bark canker were observed in two localities in northern Serbia during 2020. Two types of bacteria were isolated from symptomatic walnut tissues, suggesting a new species within the Brenneria genus.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Matias Garavaglia, Andres Muzlera, Claudio Valverde
Summary: In the field of prokaryotic taxonomy, there has been a transition towards phylogenomics as the gold standard approach, but it can be costly when managing large amounts of isolates. Multilocus sequence analysis (MLSA) is a recommended alternative due to its affordability and competency. However, the selection criteria for conserved genes for MLSA have not been explicit for different bacterial taxa. This study presents a computational workflow to select internal sequence regions of Pseudomonas core genes for MLSA, which shows comparable phylogenetic resolution to the genome-based ANI approach.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2023)
Article
Forestry
Louise A. P. Gathercole, Gabriele Nocchi, Nathan Brown, Timothy L. R. Coker, William J. Plumb, Jonathan J. Stocks, Richard A. Nichols, Sandra Denman, Richard J. A. Buggs
Summary: Acute Oak Decline (AOD) is a complex syndrome affecting Britain's native oak species, with weeping stem lesions being the most distinguishable symptom. Research suggests that AOD-associated bacteria may be part of the normal oak microbiome, and their presence alone is not enough to cause AOD symptoms.
Review
Forestry
Won Il Choi, Dong-Hyeon Lee, Jong Bin Jung, Young-Seuk Park
Summary: This study reviewed the historical occurrence, disease cycle, and potential causes of oak decline syndrome in South Korea and Japan. Korean oak wilt (KOW) is associated with Raffaelea quercus-mongolicae fungus and the ambrosia beetle Platypus koryoensis. Yeasts may have a symbiotic relationship with the vector beetle. The novel occurrence of KOW in Korea may be due to an increase in tree age or climate change.
Article
Forestry
Jasen P. Finch, Nathan Brown, Manfred Beckmann, Sandra Denman, John Draper
Summary: Oak decline syndromes, including Acute Oak Decline (AOD) and Chronic Oak Decline (COD), are increasingly common, requiring more sensitive and standardized visual oak health monitoring. Phenotyping protocols were developed to measure decline severity, leading to the development of the Phenotypic Decline Index (PDI) and the Decline Acuteness Index (DAI) to quantify and differentiate acute and chronic oak decline. The indexes provide simple but sensitive measures for tree decline severity and have potential applications in forest monitoring and remote sensing.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Microbiology
Daniel Maddock, Carrie Brady, Sandra Denman, Dawn Arnold
Summary: This study investigated the survival ability of four bacterial species associated with acute oak decline (AOD) in rhizosphere soil, leaves, and acorns in vitro, and designed a recovery method. Field samples showed two bacterial species to be environmentally widespread, while the occurrence of the other two was limited. Future research should focus on abiotic factors of AOD, the transition of endophytic bacteria to a pathogenic cycle, and the identification of resilient seed stock.
Article
Biodiversity Conservation
Ana Lopez-Ballesteros, Emilio Rodriguez-Caballero, Gerardo Moreno, Paula Escribano, Ana-Maria Heres, Jorge Curiel Yuste
Summary: Forest decline events have increased worldwide, with holm oak being a species of concern due to its southernmost distribution within Europe. Drought, soil pathogens, and overlooked abiotic factors such as land use and topography are found to jointly determine the spatiotemporal patterns of holm oak decline in Spain. The results contribute to the understanding of the influence of local topography on forest resilience and can help identify potential tree decline hotspots and their main causes in the Mediterranean region.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Microbiology
Boas C. L. van der Putten, S. Matamoros, D. R. Mende, E. R. Scholl, C. Schultsz
Summary: Researchers isolated an Escherichia strain from an international traveller and found that it belongs to a new species named Escherichia ruysiae sp. nov., distinct from existing species of the genus. Through whole-genome sequencing, they confirmed its classification within the Escherichia cryptic clades III and IV.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Dario Arizala, Shefali Dobhal, Anne M. Alvarez, Mohammad Arif
Summary: This study assessed the taxonomic position of Clavibacter michiganensis subspecies and clarified the taxonomy of other Clavibacter strains. Based on genomic sequencing and computational methods, it proposed raising C. michiganensis subspecies to a new species, Clavibacter californiensis, and merging C. michiganensis subsp. chilensis and C. michiganensis subsp. phaseoli into a new species, Clavibacter phaseoli.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Review
Microbiology
Praveen Rahi, Estelle Muhle, Cyril Scandola, Gerald Touak, Dominique Clermont
Summary: This study utilized a polyphasic taxonomy approach to accurately classify six strains within the Enterobacter cloacae complex (ECC). The 16S rRNA gene-based phylogeny failed to group all ECC species into a monophyletic cluster, while genome sequence-based phylogenetic approaches successfully grouped all species. A new species named Enterobacter pasteurii sp. nov. was proposed based on comprehensive genotypic and phenotypic characterizations.
MICROBIOLOGY SPECTRUM
(2023)
Article
Plant Sciences
Saeedeh Delfan, Ziaedin Badehian, Mehrdad Zarafshar, John H. Graham
Summary: The study revealed that declining Persian oaks have smaller leaves and fruits, with distorted trichomes on the leaves. However, the impact of oak-decline on Persian oak morphology varies greatly among populations, limiting the use of leaf and fruit size as indices of tree decline.
Article
Forestry
Alejandro Solla, Gerardo Moreno, Tadeusz Malewski, Thomas Jung, Marcin Klisz, Milosz Tkaczyk, Marta Siebyla, Andrea Perez, Elena Cubera, Heorhiy Hrynyk, Wieslaw Szulc, Beata Rutkowska, Juan Antonio Martin, Lassaad Belbahri, Tomasz Oszako
Summary: The study found that high concentration potassium phosphite spray can improve the crown condition of unhealthy trees without altering the abundance and composition of tree bacteria. Additionally, the spray increased the N, P, and Mg leaf content and promoted the formation of fine tree roots.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Microbiology
Carrie Brady, Mario Orsi, James M. Doonan, Sandra Denman, Dawn Arnold
Summary: This study examined the bacterial interactions between B. goodwinii, R. victoriana, and G. quercinecans in oak leaf media microcosms. The results showed that B. goodwinii thrived and had higher fitness in monoculture and pairwise culture with the other two species. In multispecies triculture, B. goodwinii and R. victoriana exhibited co-ordinated behavior to outcompete G. quercinecans. The evolved fitness of B. goodwinii was also observed in co-culture, indicating its growth advantage over the other two species.
CURRENT RESEARCH IN MICROBIAL SCIENCES
(2022)
Article
Microbiology
Carrie Brady, Tomohiro Irisawa, Takao Iino, Moriya Ohkuma, Dawn Arnold, Sandra Denman
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2015)
Article
Biotechnology & Applied Microbiology
C. Brady, J. Allainguillaume, S. Denman, D. Arnold
LETTERS IN APPLIED MICROBIOLOGY
(2016)
Review
Biotechnology & Applied Microbiology
Carrie Brady, Dawn Arnold, James McDonald, Sandra Denman
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2017)
Article
Agronomy
Elizabeth Ngadze, Carrie L. Brady, Teresa A. Coutinho, Jacquie E. van der Waals
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2012)
Article
Infectious Diseases
C. A. E. Hicks, E. N. Barker, C. Brady, C. R. Stokes, C. R. Helps, S. Tasker
INFECTION GENETICS AND EVOLUTION
(2014)
Article
Microbiology
Carrie L. Brady, Ilse Cleenwerck, Lorinda van der Westhuizen, Stephanus N. Venter, Teresa A. Coutinho, Paul De Vos
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2012)
Article
Biotechnology & Applied Microbiology
Carrie Brady, Ilse Cleenwerck, Stephanus Venter, Teresa Coutinho, Paul De Vos
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2013)
Article
Biotechnology & Applied Microbiology
Carrie Brady, Gavin Hunter, Susan Kirk, Dawn Arnold, Sandra Denman
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2014)
Article
Biotechnology & Applied Microbiology
Carrie Brady, Gavin Hunter, Susan Kirk, Dawn Arnold, Sandra Denman
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2014)
Article
Microbiology
Victoria Bueno-Gonzalez, Carrie Brady, Sandra Denman, Joel Allainguillaume, Dawn Arnold
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2020)
Article
Microbiology
Carrie Brady, Jo Ann Asselin, Steven Beer, May Bente Brurberg, Bridget Crampton, Stephanus Venter, Dawn Arnold, Sandra Denman
Summary: This study investigated the taxonomic status of bacteria isolated from onion bulbs and water environments and proposed the description of four novel Rahnella species.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Microbiology
Helene Kile, Dawn Arnold, Joel Allainguilaume, Sandra Denman, Carrie Brady
Summary: A previously undescribed bacterial species, belonging to the genus Brenneria, was isolated from infected mature Tilia hybrid trees in the UK. The strains showed significant differences from the closest phylogenetic relatives in genetic sequencing, phylogenetic analysis, and phenotypic and chemotaxonomic assays, suggesting that they represent a novel species within the genus Brenneria.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Daniel Maddock, Carrie Brady, Sandra Denman, Dawn Arnold
Summary: Bacterial strains belonging to the family Enterobacteriaceae were isolated from rhizosphere soil and could not be assigned to an existing genus. Through phenotypic testing and genetic analysis, 16 strains were found to form two distinct clusters, leading to the proposal of two new species: Dryocola boscaweniae and Dryocola clanedunesis.
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2023)
Article
Microbiology
Daniel Maddock, Carrie Brady, Sandra Denman, Dawn Arnold
Summary: This study investigated the survival ability of four bacterial species associated with acute oak decline (AOD) in rhizosphere soil, leaves, and acorns in vitro, and designed a recovery method. Field samples showed two bacterial species to be environmentally widespread, while the occurrence of the other two was limited. Future research should focus on abiotic factors of AOD, the transition of endophytic bacteria to a pathogenic cycle, and the identification of resilient seed stock.
