Results 41 to 50 of about 304 (140)

Phenotypic scoring of canola blackleg severity using machine learning image analysis

The Plant Phenome Journal, Volume 9, Issue 1, December 2026.
Abstract Canola blackleg is a fungal disease that causes significant yield loss and plant death of infected canola (Brassica napus L., Brassica rapa L., Brassica juncea L.) fields worldwide. One of the most effective methods for controlling blackleg is through the cultivation of resistant varieties.
Qiao Hu, Sarah Anderson, Stuart Gardner, Thomas W. Ernst, Chadwick B. Koscielny, Navratan S. Bahia, Charles G. Johnson Jr, Andrew C. Jarvis, Joseph S. Hynek, Nathan Coles, Igor Falak, David R. Charne, Manuel E. Ruidiaz, Julien Linares, Anastasios Mazis, Daniel J. Stanton   +15 more
wiley   +1 more source

Mycoviruses as Biocontrol Agents: Potential Applications for Managing Pests and Diseases of Oilseed Rape (Brassica napus)

Physiologia Plantarum, Volume 178, Issue 4, July/August 2026.
ABSTRACT Oilseed rape (Brassica napus) production faces a wide range of biotic threats. Pests typically pose a greater threat than diseases to oilseed rape, yet both vary considerably across the major cultivating regions. Management strategies often rely heavily on the use of chemical pesticides which may have harmful effects on the environment, thus ...
Harry J. Aston, Robert H. A. Coutts, Yong‐Ju Huang, Ioly Kotta‐Loizou   +3 more
wiley   +1 more source

Introgression of Resistance Against Leptosphaeria maculans From Brassica juncea Into Brassica napus

Plant Pathology, Volume 75, Issue 1, January/February 2026.
Introgression of blackleg‐specific resistance genes from Brassica juncea into B. napus was conducted. Genotyping/phenotyping found this material may contain previously uncharacterised resistance against the blackleg pathogen. ABSTRACT Blackleg disease is caused by the fungal plant pathogen Leptosphaeria maculans.
Keval Shah, Liang Zhao, Sakaria Liban, W. G. Dilantha Fernando, Curt McCartney, Claudio Stasolla, Robert W. Duncan   +6 more
wiley   +1 more source

First Report of Leptosphaeria biglobosa (Blackleg) on Brassica oleracea (Cabbage) in Mexico

Plant Disease, 2010
Broccoli (Brassica oleracea var. italica), cauliflower (B. oleracea var. botrytis), and cabbage (B. oleracea var. capitata) have been grown in central Mexico since 1970, with 21,000 ha cropped in 2001. In contrast, areas grown with oilseed rape (B. napus) are very limited in Mexico (<8,000 ha). Blackleg, a destructive disease of B.
Dilmaghani, Azita, Balesdent, Marie-Helene, Rouxel, Thierry, Moreno-Rico, O.   +3 more
openaire   +3 more sources

Current Status and Challenges in Identifying Disease Resistance Genes in Brassica napus

Frontiers in Plant Science, 2017
Brassica napus is an economically important crop across different continents including temperate and subtropical regions in Europe, Canada, South Asia, China and Australia.
Ting Xiang Neik, Martin J. Barbetti, Jacqueline Batley   +2 more
doaj   +1 more source

Tolerance Against Co‐Infection of Two Partitiviruses and Ourmia‐Likevirus Is Common Among Heterobasidion annosum Strains on Artificial Media and in Dead Wood

Forest Pathology, Volume 55, Issue 5, October 2025.
ABSTRACT Some mycoviruses cause hypovirulence in fungi, but the effects often vary among different host strains. Heterobasidion partitiviruses 13‐an1 and 15‐pa1 (HetPV13‐an1 and HetPV15‐pa1) have been associated with strain‐specific and variable hypovirulence of Heterobasidion annosum, but variation in phenotypic effects of HetPV15‐pa1 or the ...
Elina Roininen, Aku Korhonen, Tuula Piri, Jarkko Hantula   +3 more
wiley   +1 more source

Analysis of Population‐Level Avirulence and Virulence Genetic Frequencies Provides Insight Into Resistance Gene Rotation and Plant Disease Epidemiology

Plant Pathology, Volume 74, Issue 4, Page 1055-1067, May 2025.
Our study uses high‐throughput sequencing to monitor avirulence gene frequencies within pathogen populations to show that rotation of plant resistance genes can impact pathogen populations. ABSTRACT Blackleg disease, caused by Leptosphaeria maculans, leads to significant yield losses to canola (Brassica napus) production worldwide. Whilst the impact of
Alec J. McCallum, Alexander Idnurm, Jack L. Scanlan, Angela P. Van de Wouw   +3 more
wiley   +1 more source

Strategic genetic insights and integrated approaches for successful management of blackleg in canola/rapeseed farming

Plant Pathology, Volume 73, Issue 9, Page 2260-2280, December 2024.
Today, growers are equipped with knowledge and tools that help keep stem canker, or blackleg, in canola/oilseed rape at generally low levels. This review highlights major research milestones that have contributed to this success. Abstract This review describes a triumphant narrative in the battle against the devastating plant pathogen complex ...
Thierry Rouxel, Gary Peng, Angela Van de Wouw, Nicholas J. Larkan, Hossein Borhan, W. G. Dilantha Fernando   +5 more
wiley   +1 more source

Induced Resistance to Blackleg (Leptosphaeria maculans) Disease of Canola (Brassica napus) Caused by a Weakly Virulent Isolate of Leptosphaeria biglobosa [PDF]

Plant Disease, 2006
Blackleg of canola is a disease complex of at least two fungal species: Leptosphaeria maculans and L. biglobosa. Isolates of L. biglobosa typically are weakly virulent or avirulent and are assigned to pathogenicity group 1 (PG-1). Isolates of L. maculans are highly virulent and encompass pathogenicity groups PG-2, PG-3, and PG-4.
Y, Chen, W G D, Fernando
openaire   +2 more sources

Molecular Identification of LeptosphaeriamaculansandDetermination of AggressiveNewPathotypes Canola Phoma stem Canker in north Iran

Majallah-i ḥifāẓat-i giyāhān, 2017
Introduction: Canola is one of the important oil crops in Iran and blackleg disease caused by Leptosphaeriamaculans is an economically important disease of rapeseed especially in the northern provinces of Iran.
Z. Vakili-zarj, K. Rahnama, S. Narollah-Nejad, A. Yamchi   +3 more
doaj   +1 more source