Pityriacitrin Marine Alkaloids as Novel Antiviral and Anti‐Phytopathogenic‐Fungus Agents

2021 ◽  
Author(s):  
Tie‐nan Wang ◽  
Shan Yang ◽  
Shao‐yang Shi ◽  
Wen‐ying Yuan ◽  
Jian‐xin Chen ◽  
...  
Keyword(s):  
Phytopathogenic Fungus ◽  
Marine Alkaloids

A novel totivirus isolated from the phytopathogenic fungus Rhodosporidiobolus odoratus strain GZ2017

2020 ◽  
Vol 165 (8) ◽  
pp. 1911-1914
Author(s):  
Tingting Zhang ◽  
Xiaoyao Cai ◽  
Zhu Zeng ◽  
Hang Du ◽  
Hongmei Liu
Keyword(s):  
Phytopathogenic Fungus

Tricyclic Marine Alkaloids: Synthetic Approaches to Cylindricines, Lepadiformine, and Fasicularin

ChemInform ◽  
2006 ◽  
Vol 37 (37) ◽  
Author(s):  
Pascal Schar ◽  
Sylvaine Cren ◽  
Philippe Renaud
Keyword(s):  
Marine Alkaloids ◽  
Synthetic Approaches

scholarly journals Transmissible Mitochondrial Hypovirulence in a Natural Population of Cryphonectria parasitica

2000 ◽  
Vol 13 (1) ◽  
pp. 88-95 ◽  
Author(s):  
Dipnath Baidyaroy ◽  
David H. Huber ◽  
Dennis W. Fulbright ◽  
Helmut Bertrand
Keyword(s):  
Natural Population ◽  
Fragment Length Polymorphism ◽  
Normal Growth ◽  
Cryphonectria Parasitica ◽  
Growth Potential ◽  
Phytopathogenic Fungus ◽  
Progressive Decline ◽  
Chestnut Blight Fungus ◽  
Specific Restriction ◽  
Hyphal Contact

A cytoplasmically transmissible hypovirulence syndrome has been identified in virus-free strains of the chestnut blight fungus Cryphonectria parasitica isolated from healing cankers on American chestnut trees in southwestern Michigan. The syndrome is associated with symptoms of fungal senescence, including a progressive decline in the growth potential and abundance of conidia, and elevated levels of respiration through the cyanide-insensitive alternative oxidase pathway. Conidia from senescing mycelia exhibited varying degrees of senescence ranging from normal growth to death soon after germination. Cytoplasmic transmission of hypovirulence between mycelia occurred by hyphal contact and coincided with the transfer of a specific restriction fragment length polymorphism from the mitochondrial DNA (mtDNA) of the donor strains into the mtDNA of virulent recipients. The transmission of the senescence phenotype was observed not only among vegetatively compatible strains but also among incompatible strains. Hypovirulence was present in isolates from the same location with different nuclear genotypes as identified by DNA fingerprinting. This study confirms that mitochondrial hypovirulence can occur spontaneously and spread within a natural population of a phytopathogenic fungus.

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