Results 51 to 60 of about 236 (126)

Targeted Disruption of a Fungal G-Protein β Subunit Gene Results in Increased Vegetative Growth but Reduced Virulence

Molecular Plant-Microbe Interactions, 1997
Targeted disruption of two G-protein α subunit genes in the chestnut blight fungus Cryphonectria parasitica revealed roles for the Giα subunit CPG-1 in fungal reproduction, virulence, and vegetative growth.
Shin Kasahara, Donald L. Nuss
doaj   +1 more source

Hypovirulence-associated mycovirus epidemics cause pathogenicity degeneration of Beauveria bassiana in the field

Virology Journal, 2023
Background The entomogenous fungus Beauveria bassiana is used as a biological insecticide worldwide, wild B. bassiana strains with high pathogenicity in the field play an important role in controlling insect pests via not only screening of highly ...
Zhengkun Zhang, Wenbo Guo, Yang Lu, Qin Kang, Li Sui, Hongyu Liu, Yu Zhao, Xiaowei Zou, Qiyun Li   +8 more
doaj   +1 more source

Infection of Two Heterologous Mycoviruses Reduces the Virulence of Valsa mali, a Fungal Agent of Apple Valsa Canker Disease

Frontiers in Microbiology, 2021
Mycovirus infection has been widely shown to attenuate the virulence of phytopathogenic fungi. Valsa mali is an agriculturally important fungus that causes Valsa canker disease in apple trees.
Shian Yang, Ruoyin Dai, Lakha Salaipeth, Lili Huang, Jie Liu, Ida Bagus Andika, Liying Sun   +6 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

Molecular Characterization of a Novel Endornavirus Conferring Hypovirulence in Rice Sheath Blight Fungus Rhizoctonia solani AG-1 IA Strain GD-2

Viruses, 2019
The complete sequence and genome organization of a novel Endornavirus from the hypovirulent strain GD-2 of Rhizoctonia solani AG-1 IA, the causal agent of rice sheath blight, were identified using a deep sequencing approach and it was tentatively named ...
Li Zheng, Canwei Shu, Meiling Zhang, Mei Yang, Erxun Zhou   +4 more
doaj   +1 more source

Commodity risk assessment of Acer plants from Ukraine

EFSA Journal, Volume 23, Issue 7, July 2025.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ’High‐risk plants, plant products and other objects'. This Scientific Opinion covers plant health risks posed by Acer plants (A. griseum, A.
EFSA Panel on Plant Health (PLH), Antonio Vicent Civera, Paula Baptista, Anna Berlin, Elisavet Chatzivassiliou, Jaime Cubero, Nik Cunniffe, Eduardo de la Peña, Nicolas Desneux, Francesco Di Serio, Anna Filipiak, Beata Hasiów‐Jaroszewska, Hervé Jactel, Blanca B. Landa, Lara Maistrello, David Makowski, Panagiotis Milonas, Nikos T. Papadopoulos, Roel Potting, Hanna Susi, Dirk Jan van Der Gaag, Andrea Battisti, Claude Bragard, Hugo Mas, Daniel Rigling, Massimo Faccoli, Alžběta Mikulová, Fabio Stergulc, Eugen Christoph, Olaf Mosbach‐Schulz, Franz Streissl, Paolo Gonthier   +31 more
wiley   +1 more source

Molecular genetic variability of Cryphonectria hypovirus 1 associated with Cryphonectria parasitica in South Tyrol (northern Italy)

Frontiers in Microbiology
Cryphonectria hypovirus 1 (CHV-1) has been widely studied and used as a biocontrol agent because of its ability to infect the chestnut blight fungus, Cryphonectria parasitica, and to reduce its virulence.
Farooq Ahmad, Selena Tomada, Thanalai Poonsiri, Sanja Baric, Sanja Baric   +4 more
doaj   +1 more source

ORF Ι of Mycovirus SsNSRV-1 is Associated with Debilitating Symptoms of Sclerotinia sclerotiorum

Viruses, 2020
We previously identified Sclerotinia sclerotiorum negative-stranded virus 1 (SsNSRV-1), the first (−) ssRNA mycovirus, associated with hypovirulence of its fungal host Sclerotinia sclerotiorum.
Zhixiao Gao, Junyan Wu, Daohong Jiang, Jiatao Xie, Jiasen Cheng, Yang Lin   +5 more
doaj   +1 more source

Review of the biology and management of large patch of warm‐season turfgrasses

Crop Science, Volume 65, Issue 2, March/April 2025.
Abstract Large patch (Rhizoctonia solani Kühn: anastomosis group [AG] 2‐2) is a destructive disease in warm‐season turfgrasses worldwide, particularly zoysiagrass (Zoysia spp.). Developing as an orange or tan color, the disease starts as small, round patches that can eventually progress to several meters in diameter.
S. T. Kreinberg, J. P. Kerns, G. L. Miller, M. D. Richardson, T. N. Spurlock, W. J. Hutchens   +5 more
wiley   +1 more source

Viroid and viroid‐like elements in plants and plant‐associated microbiota: a new layer of biodiversity for plant holobionts

New Phytologist, Volume 244, Issue 4, Page 1216-1222, November 2024.
Summary The functional relevance of plant‐associated microorganisms is theoretically framed within the holobiont concept. The role of viruses in plant holobionts is being recognized both for their direct effects when hosted in plants (cryptic plant viruses) and for their indirect effects when infecting microorganisms associated with plants in ...
Beatriz Navarro, Massimo Turina
wiley   +1 more source