scholarly journals Phenolics mediate suppression of Fusarium oxysporum f. sp. cubense TR4 by legume root exudates

Rhizosphere ◽  
2022 ◽  
Vol 21 ◽  
pp. 100459
Author(s):  
Evans Were ◽  
Jochen Schöne ◽  
Altus Viljoen ◽  
Frank Rasche
Keyword(s):  
Fusarium Oxysporum ◽  
Root Exudates

scholarly journals Interaction of Pseudostellaria heterophylla with Fusarium oxysporum f.sp. heterophylla mediated by its root exudates in a consecutive monoculture system

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Yongpo Zhao ◽  
Linkun Wu ◽  
Leixia Chu ◽  
Yanqiu Yang ◽  
Zhenfang Li ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Root Exudates ◽  
Pseudostellaria Heterophylla

Germination of Fusarium oxysporum in root exudates from tomato plants challenged with different Fusarium oxysporum strains

2008 ◽  
Vol 122 (3) ◽  
pp. 395-401 ◽  
Author(s):  
Siegrid Steinkellner ◽  
Roswitha Mammerler ◽  
Horst Vierheilig
Keyword(s):  
Fusarium Oxysporum ◽  
Root Exudates ◽  
Tomato Plants

scholarly journals Root Exudates from Grafted-Root Watermelon Showed a Certain Contribution in Inhibiting Fusarium oxysporum f. sp. niveum

PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e63383 ◽  
Author(s):  
Ning Ling ◽  
Wenwen Zhang ◽  
Dongsheng Wang ◽  
Jiugeng Mao ◽  
Qiwei Huang ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Root Exudates

scholarly journals Identification of Root-Secreted Compounds Involved in the Communication Between Cucumber, the Beneficial Bacillus amyloliquefaciens, and the Soil-Borne Pathogen Fusarium oxysporum

2017 ◽  
Vol 30 (1) ◽  
pp. 53-62 ◽  
Author(s):  
Yunpeng Liu ◽  
Lin Chen ◽  
Gengwei Wu ◽  
Haichao Feng ◽  
Guishan Zhang ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Root System ◽  
Root Exudates ◽  
Bacillus Amyloliquefaciens ◽  
Root Colonization ◽  
Plant Root ◽  
Root Exudation ◽  
Soil Borne Pathogens ◽  
Split Root System ◽  
Cucumber Roots

Colonization of plant growth–promoting rhizobacteria (PGPR) is critical for exerting their beneficial effects on the plant. Root exudation is a major factor influencing the colonization of both PGPR and soil-borne pathogens within the root system. However, the tripartite interaction of PGPR, plant roots, and soil-borne pathogens is poorly understood. We screened root exudates for signals that mediate tripartite interactions in the rhizosphere. In a split-root system, we found that root colonization of PGPR strain Bacillus amyloliquefaciens SQR9 on cucumber root was significantly enhanced by preinoculation with SQR9 or the soil-borne pathogen Fusarium oxysporum f. sp. cucumerinum, whereas root colonization of F. oxysporum f. sp. cucumerinum was reduced upon preinoculation with SQR9 or F. oxysporum f. sp. cucumerinum. Root exudates from cucumbers preinoculated with SQR9 or F. oxysporum f. sp. cucumerinum were analyzed and 109 compounds were identified. Correlation analysis highlighted eight compounds that significantly correlated with root colonization of SQR9 or F. oxysporum f. sp. cucumerinum. After performing colonization experiments with these chemicals, raffinose and tryptophan were shown to positively affect the root colonization of F. oxysporum f. sp. cucumerinum and SQR9, respectively. These results indicate that cucumber roots colonized by F. oxysporum f. sp. cucumerinum or SQR9 increase root secretion of tryptophan to strengthen further colonization of SQR9. In contrast, these colonized cucumber roots reduce raffinose secretion to inhibit root colonization of F. oxysporum f. sp. cucumerinum.

An altered root exudation pattern through mycorrhization affecting microconidia germination of the highly specialized tomato pathogen Fusarium oxysporum f. sp. lycopersici (Fol) is not tomato specific but also occurs in Fol nonhost plants

2007 ◽  
Vol 85 (3) ◽  
pp. 347-352 ◽  
Author(s):  
Stephan Scheffknecht ◽  
Marc St-Arnaud ◽  
Thanasan Khaosaad ◽  
Siegrid Steinkellner ◽  
Horst Vierheilig
Keyword(s):  
Fusarium Oxysporum ◽  
Root Exudates ◽  
Glomus Mosseae ◽  
Arbuscular Mycorrhizal Fungus ◽  
Root Exudation ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Tomato Pathogen

The effect of root exudates from plants colonized or noncolonized by the arbuscular mycorrhizal fungus Glomus mosseae on microconidia germination of Fusarium oxysporum f. sp. lycopersici (Fol) was studied. Root exudates from the Fol-host tomato and root exudates from Fol nonhost plants were tested. Root exudates from all tested plants stimulated microconidia germination. Mycorrhization increased the stimulatory effect exhibited by the root exudates from the Fol host tomato and from all Fol nonhost plants, showing that similar changes occur in the root exudates of all plants after mycorrhization.

Influence of the mutualistic endophyte Fusarium oxysporum 162 on Meloidogyne incognita attraction and invasion

Nematology ◽  
2007 ◽  
Vol 9 (6) ◽  
pp. 771-776 ◽  
Author(s):  
Richard Sikora ◽  
Abd El-Fattah Dababat
Keyword(s):  
Fusarium Oxysporum ◽  
Root Exudates ◽  
Meloidogyne Incognita ◽  
Repellent Activity ◽  
Choice Test ◽  
Root Knot Nematode ◽  
Tomato Root ◽  
Tomato Roots

AbstractThe non-pathogenic endophytic Fusarium oxysporum strain 162 (FO162) has been selected for its capacity to reduce root-knot nematode galling on tomato. The objectives of this study were to investigate the influence of this fungus on invasion of tomato roots by Meloidogyne incognita. The number of M. incognita that invaded roots of plants treated with FO162 was significantly lower (reductions of 36.0-55.9%) than in the non-treated controls in linked twin-pot chambers. The results demonstrated that colonisation of the roots by FO162 affects the number of M. incognita that penetrate the roots. The results of a choice test in the absence of a plant indicated that the tomato root exudates collected from plants colonised by FO162 are either less attractive or they exude substances that have repellent activity toward M. incognita juveniles.

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