Results 51 to 60 of about 509 (150)

Biogeography of Bursaphelenchus Species Driven by Climate, Vectors and Hosts: Implications for Forest Pathology Under Climate Change

Forest Pathology, Volume 56, Issue 4, August 2026.
ABSTRACT Wood‐inhabiting nematodes of the genus Bursaphelenchus are a group with significant ecological and economic impacts on global forest ecosystems. This review aims to update current knowledge on their spatial distribution, host‐vector associations and the factors driving species expansion under the framework of climate change.
Neilan Chotzar, Dimitris Avtzis, Maria Argyropoulou, Nikolaos Monokrousos   +3 more
wiley   +1 more source

Social and cultural considerations for the restoration of ‘lost’ tree species: The fall and rise of elm

People and Nature, Volume 8, Issue 6, Page 1556-1566, June 2026.
Abstract Attempts to address biodiversity loss have led to ecosystem and species restoration efforts. Tree species restoration is particularly relevant because of increasing threats from pests and pathogens. However, there are different notions of ‘loss’, as well as sociocultural considerations, including social acceptability, which are often neglected
Fritha West, Rehema M. White, Althea L. Davies, Richard Buggs, Mariella Marzano   +4 more
wiley   +1 more source

FISH Illumination of the Oak Wilt Pathogen, Bretziella fagacearum, on Vectoring Insects and in the Red Oak Host Tissues

Forest Pathology, Volume 56, Issue 2, April 2026.
ABSTRACT Oak wilt, caused by Bretziella fagacearum, is a destructive vascular disease of oaks in North America, yet fine‐scale spatial localisation of the pathogen in host tissues and on insect vectors remains poorly characterised. In this study, we developed and validated a species‐specific fluorescence in situ hybridisation (FISH) probe targeting the
Martine Blais, Karandeep Chahal, Monique L. Sakalidis, Philippe Tanguay   +3 more
wiley   +1 more source

Bark and wood tissues of American elm exhibit distinct responses to Dutch elm disease

Scientific Reports, 2017
Tolerance to Dutch elm disease (DED) has been linked to the rapid and/or high induction of disease-responsive genes after infection with the fungus Ophiostoma novo-ulmi. Although the fungal infection by O.
S. M. Sherif, L. A. Erland, M. R. Shukla, P. K Saxena   +3 more
doaj   +1 more source

An endopolygalacturonase gene of Diaporthe helianthi

Phytopathologia Mediterranea, 2012
In an attempt to define virulence determinants of Diaporthe helianthi, the causative agent of sunflower stem canker, the gene named Dhpg, coding for an endopolygalacturonase, was investigated in the highly virulent strain 8/96 isolated from a diseased ...
Valentina CATALANO, Djaouida REKAB, Giuseppe FIRRAO, Giovanni VANNACCI, Mariarosaria VERGARA   +4 more
doaj   +1 more source

Ophiostoma ulmi DNA naturally introgressed into an isolate of Ophiostoma novo-ulmi is clustered around pathogenicity and mating type loci [PDF]

Phytoprotection, 2019
The invasive fungal pathogensOphiostoma ulmiandO. novo-ulmihave caused two successive pandemics of Dutch elm disease since the beginning of the 20thcentury. In nature, the highly aggressiveO. novo-ulmimay hybridize with the less aggressiveO. ulmi. Growth rate and molecular analyses were conducted on an unusual, moderately aggressiveO. novo-ulmiisolate,
Et-Touil, Abdelali, Dusabenyagasani, Mathieu, Bouvet, Guillaume F., Brasier, Clive M., Bernier, Louis   +4 more
openaire   +1 more source

Systemic Activation of the Antioxidant System by Root Priming With Non‐Pathogenic Fusarium oxysporum in Flax Infected With Pathogenic Fusarium oxysporum

Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.
Fusarium oxysporum Fo47 primes flax by locally suppressing pathogens in roots and systemically activating antioxidant defences in shoots, offering a sustainable plant protection strategy. ABSTRACT Plants rely on specialised adaptive mechanisms to enhance resistance against environmental stress.
Marta Burgberger, Justyna Mierziak, Wioleta Wojtasik   +2 more
wiley   +1 more source

نقش توکسین سراتواُلمین در بیماری‌زایی و بقای دو گونه قارچ Ophiostoma ulmi و Ophiostoma novo-ulmi (عاملین بیماری مرگ هلندی نارون) [PDF]

Pizhūhish/hā-yi tulīd-i giyāhī, 2012
سراتواُلمین مهم‌ترین توکسیـن عامل قارچی بیـماری مرگ هلندی نارون است و مقـدار آن یکی از مهم‌ترین عوامل تفکیـک دو گونه Ophiostoma ulmi و Ophiostoma novo-ulmi می‌باشد. با توجـه به این‌که گونـه O. novo-ulmi در مقایسه با گونه O. ulmi از شدت بیماری‌زایی بیشتری
doaj  

Comparison of commercial elm cultivars and promising unreleased Dutch clones for resistance to Ophiostoma novo-ulmi

iForest - Biogeosciences and Forestry, 2015
Elms, and especially Ulmus × hollandica have been dominant and very much appreciated trees in cities and rural landscape for centuries in the Netherlands.
Buiteveld J, Van Der Werf B, Hiemstra Jelle A   +2 more
doaj   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

Population Ecology, Volume 68, Issue 1, January 2026.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source