scholarly journals Fol ‐milR1, a pathogenicity factor of Fusarium oxysporum , confers tomato wilt disease resistance by impairing host immune responses

2021 ◽  
Author(s):  
Hui‐Min Ji ◽  
Hui‐Ying Mao ◽  
Si‐Jian Li ◽  
Tao Feng ◽  
Zhao‐Yang Zhang ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Immune Responses ◽  
Fusarium Oxysporum ◽  
Wilt Disease ◽  
Host Immune Responses ◽  
Pathogenicity Factor ◽  
Tomato Wilt

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 Whole genome analysis of the koa wilt pathogen (Fusarium oxysporum f. sp. koae) and the development of molecular tools for early detection and monitoring

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
John T. Dobbs ◽  
Mee-Sook Kim ◽  
Nicklos S. Dudley ◽  
Ned B. Klopfenstein ◽  
Aileen Yeh ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Early Detection ◽  
Fusarium Oxysporum ◽  
Resistance Breeding ◽  
Wilt Disease ◽  
Disease Development ◽  
Whole Genome ◽  
Breeding Programs ◽  
Disease Resistance Breeding ◽  
Highly Virulent

Abstract Background Development and application of DNA-based methods to distinguish highly virulent isolates of Fusarium oxysporum f. sp. koae [Fo koae; cause of koa wilt disease on Acacia koa (koa)] will help disease management through early detection, enhanced monitoring, and improved disease resistance-breeding programs. Results This study presents whole genome analyses of one highly virulent Fo koae isolate and one non-pathogenic F. oxysporum (Fo) isolate. These analyses allowed for the identification of putative lineage-specific DNA and predicted genes necessary for disease development on koa. Using putative chromosomes and predicted gene comparisons, Fo koae-exclusive, virulence genes were identified. The putative lineage-specific DNA included identified genes encoding products secreted in xylem (e. g., SIX1 and SIX6) that may be necessary for disease development on koa. Unique genes from Fo koae were used to develop pathogen-specific PCR primers. These diagnostic primers allowed target amplification in the characterized highly virulent Fo koae isolates but did not allow product amplification in low-virulence or non-pathogenic isolates of Fo. Thus, primers developed in this study will be useful for early detection and monitoring of highly virulent strains of Fo koae. Isolate verification is also important for disease resistance-breeding programs that require a diverse set of highly virulent Fo koae isolates for their disease-screening assays to develop disease-resistant koa. Conclusions These results provide the framework for understanding the pathogen genes necessary for koa wilt disease and the genetic variation of Fo koae populations across the Hawaiian Islands.

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 Development of a Mitochondrial SCAR Marker Related to Susceptibility of Banana (Musa AAA Cavendish) to Fusarium oxysporum f. sp. Cubense Race 4

2018 ◽  
Vol 46 (2) ◽  
pp. 509-516
Author(s):  
Fang WANG ◽  
Ling XIA ◽  
Shun LV ◽  
Chunxiang XU ◽  
Yuqing NIU ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Mitochondrial Genome ◽  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Scar Marker ◽  
Wilt Disease ◽  
Scar Markers ◽  
Resistant Cultivars ◽  
Fusarium Wilt Disease ◽  
Race 4

The use of resistant cultivars is an effective method for the control of banana (Musa spp.) Fusarium wilt caused by race 4 of Fusarium oxysporum f. sp. cubense (Foc4). However, selection of disease-resistant cultivars requires large-scale field evaluations and is time-consuming. Development of early, reliable, and reproducible selection strategies can speed up this process. Sequence characterized amplified region (SCAR) markers have been widely employed in the resistant breeding of many crops. However, to date, there have been no reports about the presence of plant disease resistance-related SCAR markers in mitochondrial genome yet, which also plays a very important role in plant defenses. In the present study, a sequence-related amplified polymorphism (SRAP) marker, a specific fragment of 829 bp, was identified. This fragment could be amplified from Foc4-susceptible but not from the resistant cultivars. It was located in banana mitochondrial genome and mapped near the putative cytochrome c biogenesis ccmB-like mitochondrial protein. This fragment was then successfully converted into a SCAR marker, namely Mito-Foc-S001, which was found to be able to discriminate the resistance from susceptibility to Fusarium wilt disease of bananas with the discriminatory power of the new mark being 96.88%. Thus, this marker can be used in banana (Musa AAA Cavendish) breeding for Fusarium wilt disease resistance.

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