The Amazing Role of the Group III of Histidine Kinases in Plant Pathogenic Fungi, an Insight to Fungicide Resistance

2010 ◽  
Vol 6 (1) ◽  
pp. 1-14 ◽  
Author(s):  
I. Islas-Flor ◽  
Y. Sanchez-Ro ◽  
L. Brito-Arga ◽  
L. Peraza-Ech ◽  
C. Rodriguez- ◽  
...  
Keyword(s):  
Fungicide Resistance ◽  
Pathogenic Fungi ◽  
Plant Pathogenic Fungi ◽  
Histidine Kinases ◽  
Group Iii

scholarly journals Regulation of effector gene expression as concerted waves in Leptosphaeria maculans: a two-players game

2021 ◽  
Author(s):  
Colin Clairet ◽  
Elise J Gay ◽  
Antoine Porquier ◽  
Françoise Blaise ◽  
Claire-Line Marais ◽  
...  
Keyword(s):  
Gene Expression ◽  
Oilseed Rape ◽  
Leptosphaeria Maculans ◽  
Pathogenic Fungi ◽  
Plant Pathogenic Fungi ◽  
Host Immune System ◽  
Regulation Of Expression ◽  
Effector Gene ◽  
Effector Genes

During infection, plant pathogenic fungi secrete a set of molecules collectively known as effectors, involved in overcoming the host immune system and in disease establishment. Effector genes are concertedly expressed as waves all along plant pathogenic fungi lifecycle. However, little is known about how coordinated expression of effector genes is regulated. Since many effector genes are located in repeat-rich regions, the role of chromatin remodeling in the regulation of effector expression was recently investigated. In Leptosphaeria maculans, causing stem canker of oilseed rape, we established that the repressive histone modification H3K9me3 (trimethylation of Lysine 9 of Histone H3), deposited by the histone methyltransferase KMT1, was involved in the regulation of expression of genes highly expressed during infection, including effectors. Nevertheless, inactivation of KMT1 did not induce expression of these genes at the same level as observed during infection of oilseed rape, suggesting that a second regulator, such as a transcription factor (TF), might be involved. Pf2, a TF belonging to the Zn2Cys6 fungal specific TF family, was described in several Dothideomycete species as essential for pathogenicity and effector gene expression. We identified the orthologue of Pf2 in L. maculans, LmPf2, and investigated the role of LmPf2 together with KMT1, by inactivating and over-expressing LmPf2 in a wild type (WT) strain and a ∆kmt1 mutant. Functional analyses of the corresponding transformants highlighted an essential role of LmPf2 in the establishment of pathogenesis. Transcriptomic analyses during axenic growth showed that LmPf2 is involved in the control of effector gene expression. We observed an enhanced effect of the over-expression of LmPf2 on effector gene expression in a ∆kmt1 background, suggesting an antagonist role between KMT1 and LmPf2.

A novel functional assay for fungal histidine kinases group III reveals the role of HAMP domains for fungicide sensitivity

2012 ◽  
Vol 157 (1) ◽  
pp. 268-277 ◽  
Author(s):  
Anna Buschart ◽  
Katja Gremmer ◽  
Mohammed El-Mowafy ◽  
Joop van den Heuvel ◽  
Peter P. Mueller ◽  
...  
Keyword(s):  
Functional Assay ◽  
Histidine Kinases ◽  
Fungicide Sensitivity ◽  
Group Iii

The role of sphinganine analog mycotoxins on the virulence of plant pathogenic fungi

Toxin Reviews ◽  
2010 ◽  
Vol 29 (3-4) ◽  
pp. 73-86 ◽  
Author(s):  
Diana Sánchez-Rangel ◽  
Javier Plasencia
Keyword(s):  
Pathogenic Fungi ◽  
Plant Pathogenic Fungi

Grape Marc Compost Tea Suppressiveness to Plant Pathogenic Fungi: Role of Siderophores

2006 ◽  
Vol 14 (1) ◽  
pp. 48-53 ◽  
Author(s):  
F. Diánez ◽  
M. Santos ◽  
A. Boix ◽  
M. de Cara ◽  
I. Trillas ◽  
...  
Keyword(s):  
Pathogenic Fungi ◽  
Plant Pathogenic Fungi ◽  
Compost Tea ◽  
Grape Marc

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.

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