Biotransformation ofl-menthol by twelve isolates of soil-borne plant pathogenic fungi (Rhizoctonia solani) and classification of fungi

2003 ◽  
Vol 78 (6) ◽  
pp. 620-625 ◽  
Author(s):  
Mitsuo Miyazawa ◽  
Hideki Kawazoe ◽  
Mitsuro Hyakumachi
Keyword(s):  
Rhizoctonia Solani ◽  
Pathogenic Fungi ◽  
Plant Pathogenic Fungi

Are species concepts outdated for fungi? Intraspecific variation in plant-pathogenic fungi illustrates the need for subspecific categorization.

2021 ◽  
pp. 301-319
Author(s):  
Enrique Monte ◽  
Rosa Hermosa ◽  
María del Mar Jiménez-Gasco ◽  
Rafael M. Jiménez-Díaz
Keyword(s):  
Phylogenetic Analysis ◽  
Rhizoctonia Solani ◽  
Morphological Traits ◽  
Pathogenic Fungi ◽  
Biological Properties ◽  
Fungal Species ◽  
Phytopathogenic Fungi ◽  
Fungal Diseases ◽  
Plant Pathogenic Fungi

Abstract Precise naming of a species is very important for phytopathogenic fungi because names may carry key information for the management of the fungal diseases. Naming fungal species based on morphological traits or biological properties is outdated and unreliable. This chapter provides the classification of some plant pathogenic fungi including Rhizoctonia solani, Colletotrichum, Fusarium oxysporum, and Verticillum based on morphological, pathogenicity, molecular and phylogenetic analysis. Debate on species identification is no longer a question of being in favour of 'splitters' rather than of 'lumpers', but defining phytopathogenic species is particularly complicated and requires further consideration of subspecific categorizations.

scholarly journals Names of phytopathogenic fungi: a practical guide

2021 ◽  
Author(s):  
Pedro W Crous ◽  
Amy Y Rossman ◽  
Catherine Aime ◽  
Cavan Allen ◽  
Treena Burgess ◽  
...  
Keyword(s):  
Molecular Phylogeny ◽  
Classification System ◽  
Driving Force ◽  
Pathogenic Fungi ◽  
Phytopathogenic Fungi ◽  
Plant Pathogenic Fungi ◽  
Natural Classification ◽  
Online Databases ◽  
As Species

Names of phytopathogenic fungi and oomycetes are essential to communicate knowledge about species and their biology, control, and quarantine as well as for trade and research purposes. Many plant pathogenic fungi are pleomorphic, meaning that they produce different asexual (anamorph) and sexual (teleomorph) morphs in their lifecycles. Because of this, more than one name has been applied to different morphs of the same species, which has confused users of names. The onset of DNA technologies makes it possible to connect different morphs of the same species, resulting in a move to a more natural classification system for fungi, in which a single name for a genus as well as species can now be used. The move to a single nomenclature, as well as the advent of molecular phylogeny and the introduction of polythetic taxonomic approaches has been the main driving force for the re-classification of fungi, including pathogens. Nonetheless, finding the correct name for species remains challenging, but there is a series of steps or considerations that could greatly simplify this process, as outlined here. In addition to various online databases and resources, a list of accurate names is herewith provided of the accepted names of the most common genera and species of phytopathogenic fungi.

Biotransformation ofl-menthol by soil-borne plant pathogenic fungi (Rhizoctonia solani)

2001 ◽  
Vol 77 (1) ◽  
pp. 21-24 ◽  
Author(s):  
Mitsuo Miyazawa ◽  
Hideki Kawazoe ◽  
Mitsuro Hyakumachi
Keyword(s):  
Rhizoctonia Solani ◽  
Pathogenic Fungi ◽  
Plant Pathogenic Fungi

scholarly journals Synthesis of Novel Pyrimethanil Grafted Chitosan Derivatives with Enhanced Antifungal Activity

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Yan Li ◽  
Song Liu ◽  
Yukun Qin ◽  
Ronge Xing ◽  
Xiaolin Chen ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Synergistic Effect ◽  
Rhizoctonia Solani ◽  
Crop Protection ◽  
Pathogenic Fungi ◽  
Gibberella Zeae ◽  
Plant Pathogenic Fungi ◽  
H Nmr ◽  
Antifungal Properties ◽  
Ft Ir

In this study, three pyrimethanil grafted chitosan (PML-g-CS) derivatives were obtained. The structures of the conjugates were confirmed by FT-IR,1H NMR, and EA. The grafting ratios were measured by HPLC. Antifungal properties of pyrimethanil grafted chitosan (PML-g-CS) derivatives against the plant pathogenic fungiRhizoctonia solaniandGibberella zeaewere investigated at concentrations of 100, 200, and 400 mg/L. The PML-g-CS derivatives showed enhanced antifungal activity in comparison with chitosan. The PML-g-CS-1 showed the best antifungal activity againstR. solani, whose antifungal index was 58.32%. The PML-g-CS-2 showed the best antifungal activity againstG. zeae, whose antifungal index was 53.48%. The conjugation of chitosan and pyrimethanil showed synergistic effect. The PML-g-CS derivatives we developed showed potential for further study and application in crop protection.

scholarly journals PROBLEMS OF CLASSIFICATION AND CERTIFICATION BY CHEMICAL COMPOSITION OF SOME FUNGICIDES AND HERBICIDES

2020 ◽  
pp. 35-38
Author(s):  
Marupova Manzura Aminovna ◽  
Ahadjonov Mavlonjon Mahmudjon o’g’li ◽  
Kosimova Hafizakhon
Keyword(s):  
Chemical Composition ◽  
Key Words ◽  
Economic Activity ◽  
Pathogenic Fungi ◽  
The State ◽  
Plant Pathogenic Fungi ◽  
International Convention ◽  
State Chemical

This article gives the types, meaning, application and classification of fungicides and herbicides. The role of the International Convention on the classification of goods, the significance of the State chemical Commission, as well as suggestions for improving their classification and certification of these substances in the commodity nomenclature of Foreign economic activity (HS code). KEY WORDS: pesticide, herbicide, fungicide, plant pathogenic fungi, commodity nomenclature of foreign economic activity, position, subitem, sub-subitem, ingredient, indicator.

Influence of a BactoFil microbiological preparation on the intensity of infection by Rhizoctonia solani and the effects on sugar beet yield and quality

2012 ◽  
pp. 102-109
Author(s):  
Suzana Kristek ◽  
Andrija Kristek ◽  
Dragana Kocevski ◽  
Antonija K. Jankovi ◽  
Dražen Juriši
Keyword(s):  
Sugar Beet ◽  
Rhizoctonia Solani ◽  
Nitrogen Fertilizer ◽  
Soil Analysis ◽  
Block Design ◽  
Sugar Content ◽  
Pathogenic Fungi ◽  
Fertilizer Application ◽  
Beet Root ◽  
Set Up

The experiment was set up on two types of the soil: Mollic Gleysols (FAO, 1998) and Eutric Cambisols where the presence of pathogenic fungi – sugar beet root decay agent – Rhizoctonia solani has been detected since 2005. In a two year study (2008, 2009), the experiment was set up by completely randomized block design in 4 repetitions and 16 different variants. Two beet varieties, Belinda, sensitive to pathogenic fungi R. solani, and Laetitia, tolerant to pathogenic fungi R. solani), were grown. The microbiological preparation BactoFil was applied in different amounts in autumn and spring. In addition, the nitrogen fertilizer application, based on the results of soil analysis, was varied. The following parameters were tested: amount of infected and decayed plants, root yield, sugar content, sugar in molasses and sugar yield. The best results were obtained by applying the microbiological preparation BactoFil, and by 30% reduced nitrogen fertilizer application. Preparation dosage and time of application depended on soil properties.

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