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Deokchun Yang - One of the best experts on this subject based on the ideXlab platform.
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cylindrocarpon destructans ilyonectria radicicola species complex causative agent of ginseng Root Rot disease and rusty symptoms
Journal of Ginseng Research, 2018Co-Authors: Mohamed Elagamy Farh, Yeonju Kim, Yujin Kim, Deokchun YangAbstract:Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and Root-Rot disease of American and Korean ginseng. Root-Rot disease poses a more serious threat to ginseng Roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing Rotten Root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the Root-Rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and Rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng Roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while Root-Rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of Root-Rot disease development.
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Cylindrocarpon destructans/Ilyonectria radicicola-species complex: Causative agent of ginseng Root-Rot disease and rusty symptoms
Elsevier, 2018Co-Authors: Mohamed Elagamy Farh, Yeonju Kim, Yujin Kim, Deokchun YangAbstract:Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and Root-Rot disease of American and Korean ginseng. Root-Rot disease poses a more serious threat to ginseng Roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing Rotten Root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the Root-Rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and Rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng Roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while Root-Rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of Root-Rot disease development
Mohamed Elagamy Farh - One of the best experts on this subject based on the ideXlab platform.
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cylindrocarpon destructans ilyonectria radicicola species complex causative agent of ginseng Root Rot disease and rusty symptoms
Journal of Ginseng Research, 2018Co-Authors: Mohamed Elagamy Farh, Yeonju Kim, Yujin Kim, Deokchun YangAbstract:Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and Root-Rot disease of American and Korean ginseng. Root-Rot disease poses a more serious threat to ginseng Roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing Rotten Root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the Root-Rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and Rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng Roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while Root-Rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of Root-Rot disease development.
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Cylindrocarpon destructans/Ilyonectria radicicola-species complex: Causative agent of ginseng Root-Rot disease and rusty symptoms
Elsevier, 2018Co-Authors: Mohamed Elagamy Farh, Yeonju Kim, Yujin Kim, Deokchun YangAbstract:Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and Root-Rot disease of American and Korean ginseng. Root-Rot disease poses a more serious threat to ginseng Roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing Rotten Root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the Root-Rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and Rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng Roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while Root-Rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of Root-Rot disease development
John F Leslie - One of the best experts on this subject based on the ideXlab platform.
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fusarium species from the cassava Root Rot complex in west africa
Phytopathology, 2006Co-Authors: Ranajit Bandyopadhyay, M Mwangi, Sylvester O Aigbe, John F LeslieAbstract:ABSTRACT Fusarium species are a significant component of the set of fungi associated with cassava Root Rot. Yield losses due to Root Rot average 0.5 to 1 ton/ha but losses >3 ton/ha, an equivalent of 15 to 20% yield, often occur. This paper reviews previous work on cassava Root Rot and summarizes a few recent studies on Fusarium species associated with the disease. Our studies in Cameroon showed that 30% of Rotted tubers were infected by Fusarium spp. 12 months after planting and represented 25% of all the fungal isolates recovered. Other commonly recovered fungi were Botryodiplodia theobromae and Armillaria spp. Numerous and diverse species of Fusarium were associated with Rotted cassava Roots in Nigeria and Cameroon. At least 13 distinct amplified fragment length polymorphism (AFLP) groups of Fusarium were distinguishable, each group probably a distinct species, and many of them might represent previously undescribed Fusarium species. The two largest of the AFLP groups correspond to F. oxysporum and F. ...
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fusarium species from the cassava Root Rot complex in west africa
Phytopathology, 2006Co-Authors: Ranajit Bandyopadhyay, M Mwangi, Sylvester O Aigbe, John F LeslieAbstract:ABSTRACT Fusarium species are a significant component of the set of fungi associated with cassava Root Rot. Yield losses due to Root Rot average 0.5 to 1 ton/ha but losses >3 ton/ha, an equivalent of 15 to 20% yield, often occur. This paper reviews previous work on cassava Root Rot and summarizes a few recent studies on Fusarium species associated with the disease. Our studies in Cameroon showed that 30% of Rotted tubers were infected by Fusarium spp. 12 months after planting and represented 25% of all the fungal isolates recovered. Other commonly recovered fungi were Botryodiplodia theobromae and Armillaria spp. Numerous and diverse species of Fusarium were associated with Rotted cassava Roots in Nigeria and Cameroon. At least 13 distinct amplified fragment length polymorphism (AFLP) groups of Fusarium were distinguishable, each group probably a distinct species, and many of them might represent previously undescribed Fusarium species. The two largest of the AFLP groups correspond to F. oxysporum and F. solani species complex. The distribution of Fusarium spp. varied among countries and among locations within a country, suggesting that germ plasm resistant at one location may not be resistant at another. Fusarium spp. also cause seedling blight of cassava and can be recovered from the stems of infected plants up to 1 m above the ground. Therefore, the pathogen can spread with stems cut as planting material. Fusarium spp. also can colonize Chromolaena odorata, the dominant weed in short fallows, which could further complicate management efforts by serving as an alternative host for strains that colonize cassava.
Yeonju Kim - One of the best experts on this subject based on the ideXlab platform.
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cylindrocarpon destructans ilyonectria radicicola species complex causative agent of ginseng Root Rot disease and rusty symptoms
Journal of Ginseng Research, 2018Co-Authors: Mohamed Elagamy Farh, Yeonju Kim, Yujin Kim, Deokchun YangAbstract:Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and Root-Rot disease of American and Korean ginseng. Root-Rot disease poses a more serious threat to ginseng Roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing Rotten Root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the Root-Rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and Rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng Roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while Root-Rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of Root-Rot disease development.
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Cylindrocarpon destructans/Ilyonectria radicicola-species complex: Causative agent of ginseng Root-Rot disease and rusty symptoms
Elsevier, 2018Co-Authors: Mohamed Elagamy Farh, Yeonju Kim, Yujin Kim, Deokchun YangAbstract:Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and Root-Rot disease of American and Korean ginseng. Root-Rot disease poses a more serious threat to ginseng Roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing Rotten Root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the Root-Rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and Rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng Roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while Root-Rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of Root-Rot disease development
Yujin Kim - One of the best experts on this subject based on the ideXlab platform.
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cylindrocarpon destructans ilyonectria radicicola species complex causative agent of ginseng Root Rot disease and rusty symptoms
Journal of Ginseng Research, 2018Co-Authors: Mohamed Elagamy Farh, Yeonju Kim, Yujin Kim, Deokchun YangAbstract:Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and Root-Rot disease of American and Korean ginseng. Root-Rot disease poses a more serious threat to ginseng Roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing Rotten Root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the Root-Rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and Rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng Roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while Root-Rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of Root-Rot disease development.
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Cylindrocarpon destructans/Ilyonectria radicicola-species complex: Causative agent of ginseng Root-Rot disease and rusty symptoms
Elsevier, 2018Co-Authors: Mohamed Elagamy Farh, Yeonju Kim, Yujin Kim, Deokchun YangAbstract:Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and Root-Rot disease of American and Korean ginseng. Root-Rot disease poses a more serious threat to ginseng Roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing Rotten Root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the Root-Rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and Rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng Roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while Root-Rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of Root-Rot disease development
