scholarly journals Role of Fusaric Acid Mycotoxin in Pathogensis Process of Tomato Wilt Disease Caused by Fusarium oxysporum

2015 ◽  
Vol 5 (10) ◽  
Author(s):  
Mohamed E Selim ◽  
Nehad A El-Gammal
Keyword(s):  
Fusarium Oxysporum ◽  
Fusaric Acid ◽  
Wilt Disease ◽  
Tomato Wilt

NEAR-WILT OF PEAS IN ONTARIO

1959 ◽  
Vol 39 (4) ◽  
pp. 483-490
Author(s):  
Blair H. MacNeill ◽  
Helen Howard
Keyword(s):  
Fusarium Oxysporum ◽  
Wilt Disease ◽  
Disease Response ◽  
New Era ◽  
Host Parasite Relationship ◽  
Parasite Relationship ◽  
Race 2 ◽  
Host Parasite

It has been found that the near-wilt disease of peas, caused by Fusarium oxysporum f. pisi race 2 (Linford) Snyder & Hansen, is now present in the canning districts of Ontario. Conclusions as to the identity of the fungus associated with the wilting condition in field plants have been based upon a study of the differential disease-response of the pea varieties Little Marvel, W.R. Perfection and New Era, the histology of infection in the susceptible pea host, and the characteristics of the fungus when in culture. The capacity of the fungus to establish a symptomless host-parasite relationship with certain legumes not normally regarded as susceptible to the near-wilt pathogen has been demonstrated. The possible role of such "non-susceptible hosts" in perpetuating the fungus between pea crops has been discussed.

Correlation between Soil Phospor (P) Content and Soil Yeast Antagonistics Ability Against Fusarium oxysporum Pathogen Causing Wilt

2018 ◽  
Vol 1 (02) ◽  
pp. 1-13
Author(s):  
Anton Muhibuddin ◽  
Kartika Novitasari Wibowo ◽  
Hunsa Punnapayak ◽  
Peter Goetz
Keyword(s):  
Fusarium Oxysporum ◽  
Fermentation Process ◽  
Wilt Disease ◽  
Biological Agent ◽  
Chemistry Laboratory ◽  
Soil P ◽  
Pests And Diseases ◽  
Candida Sp ◽  
P Content ◽  
Tomato Wilt

Besides its role during fermentation process, yeast also has potential as biological agent because of its antagonistics characteristic. We have isolated yeast from six different locations based on Phospourus differences. Isolated yeast were then tested its antagonistics ability of Fusarium oxysporum, the pathogen causing tomato wilt disease. This research aims to find out the diversity of yeast found in the tomato rhizosphere in six different contents of phosphorus locations and to know its antagonistics ability against the pathogenic. F. oxysporum. This research was conducted in the Laboratory of Mycology, Department of Pests and Diseases, Faculty of Agriculture, Brawijaya University, Malang and in the Chemistry Laboratory, Institut Teknologi 10 Nopember Surabaya, started from January up to September 2015. Yeasts have been isolated from tomato’s rhizosphere of 6 different locations around East Java proviences. The result showed that yeasts from organic field (Lower P content) were 6 genera. They are Candida sp. 1, Pichia sp. 1, Hansenula sp., Metschnikowia sp. 1, Cryptococcus sp., and Zygosaccharomyces sp. While the yeasts from inorganic field (higher P) were 3 genera. The most potential yeast in controlling F. oxysporum is Pichia sp. 2. Lower P content showed more divers than higher P content. Yeasts from higher soil P content showed more antagonists to control F. oxysporum. Keywords: Phosphor, correlation, yeast, antagonistic, disease, soil

Pengembangan Teknologi Pengendalian Penyakit Layu Tomat (Fusarium oxysporum f. sp. lycopersici) yang Ramah Lingkungan dengan Menggunakan Mikroorganisme Saprofit

Agrotek ◽  
2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Derek Kornelis Erari ◽  
Eko Agus Martanto
Keyword(s):  
Biological Control ◽  
Fusarium Oxysporum ◽  
Growth And Development ◽  
Wilt Disease ◽  
Common Disease ◽  
Microbial Antagonism ◽  
The Earth ◽  
Tomato Wilt

Fusarium wilt disease is a common disease for tomatoes plant which damages plant although it is intensively cultivated. Biological control by microbial antagonism is environmentally friendly compare to the use of fungicide. This research was aimed to study the capability of Bacillus subtilis, Pseudomonas fluorescens, Gliocladium fimbriatum and Trichoderma viridae that are locally specific in controll Fusarium oxysporum f.sp. lycopersici� cause tomato wilt disease. Evaluation of F.o. f.sp. lycopersici� antagonism capability was done by in vitro and in vivo.� In vitro antagonism treatment used the ouble plating treatment on Potato Dextose Agar.� In vivo antagonism treatment was done by gave antagonism agent and F.o. f.sp. lycopersici� together to the earth medium. The result of the study revealed that (1) B. subtilis, G. fimbriatum and T. viridae can pressure the growth and development �F.o. f.sp. lycopersici which cause tomato wilt disease both in vitro and in vivo, (2) In vitro the average of the prevented pathogen growth was as follow: B. subtilis (55.52%), G. fimbriatum (36.77%) and� T. viridae (35.87%), (3) In vivo treatment by the earth medium was not significantly different, and (4) In vivo the ability of prevent disease intensity was as follow : B. subtilis (62.35%), G. fimbriatum (49.95%) and� T. viridae (49.95%).

scholarly journals Morphological and pathogenic variability of Fusarium oxysporum. f. sp. Lycopersici causing tomato wilt disease

2021 ◽  
Vol 10 (10) ◽  
pp. 1719-1722
Author(s):  
S Yogalakshmi ◽  
S Thiruvudainambi ◽  
K Kalpana ◽  
R Thamizh Vendan
Keyword(s):  
Fusarium Oxysporum ◽  
Wilt Disease ◽  
Pathogenic Variability ◽  
Tomato Wilt

Identification of virulence genes in Fusarium oxysporum f. sp. lycopersici the causal agent of tomato wilt disease

2010 ◽  
Author(s):  
M.L.R. Bastos da Silva ◽  
M.C.C. Pereira de Lyra ◽  
I.R. Souza Arruda ◽  
M. Vanusa da Silva ◽  
J. Zoé Brito
Keyword(s):  
Fusarium Oxysporum ◽  
Virulence Genes ◽  
Wilt Disease ◽  
Causal Agent ◽  
Tomato Wilt

scholarly journals In Vitro Induced Resistance of Fusarium Wilt Disease (Fusarium oxysporum f.sp. cepae) by Salicylic Acid in Shallot CV ‘Bima Brebes’

2017 ◽  
Vol 2 (1) ◽  
pp. 001
Author(s):  
Khusnul Khotimah ◽  
Endang Sulistyaningsih ◽  
Arif Wibowo
Keyword(s):  
Salicylic Acid ◽  
Fusarium Oxysporum ◽  
Induced Resistance ◽  
Fusarium Wilt ◽  
Fusaric Acid ◽  
Wilt Disease ◽  
Resistance Response ◽  
Toxic Symptom ◽  
Fusarium Wilt Disease

Fusarium wilt caused by Fusarium oxysporum f.sp.cepae (Foc) is one of the most important diseases of onion in Indonesia. Induced resistance was one of the effective techniques to acquire resistance to fusarium wilt in shallot. Salicylic acid (SA) had been inferred to be in endogenous signal in the systemic acquired resistance response of plants. This research aimed to study the effect of exogenously added SA to resistance in shallot callus cv ‘Bima Brebes’ to fusarium wilt disease in vitro; and to determine the effective concentration of SA to induce resistance. A group of shallot callus was grown in MS medium containing varying SA concentration (0, 15, 20 and 25 ppm) in vitro for 2 weeks. Then, the callus were treated with toxin of Fusarium oxysporum, namely fusaric acid, to have observe the resistance response. In vitro selection was done twice in different fusaric acid concentration. Application of exogenous SA at all concentration did not suppres time of appearance of disease symptom yet. Toxic symptom in the callus was shown by the browning or blackening (off) of callus. Salicylic acid at concentration of 20 ppm effectively reduced the toxic symptom up to 16.66% and supported callus regeneration better than the concentration of 15 ppm and 25 ppm. The number of resistant callus regenerated was 66.67% at pretreatment of 20 ppm of SA.

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