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

Relationship between phosphorus fractions and properties of highly calcareous soils

Soil Research ◽  
2007 ◽  
Vol 45 (4) ◽  
pp. 255 ◽  
Author(s):  
Ebrahim Adhami ◽  
Hamid Reza Memarian ◽  
Farzad Rassaei ◽  
Ehsan Mahdavi ◽  
Manouchehr Maftoun ◽  
...  
Keyword(s):  
Calcareous Soils ◽  
Hydroxylamine Hydrochloride ◽  
Inorganic Phosphorus ◽  
Influential Factor ◽  
Sequential Fractionation ◽  
Inorganic P ◽  
Soil P ◽  
Fractionation Procedure ◽  
Extractable P ◽  
P Content

Inorganic phosphorus (P) sequential fractionation schemes are applicable techniques to interpret soil P status. The present study was initiated to determine the origin of various P fractions in highly calcareous soils. Inorganic P forms were determined by a sequential fractionation procedure extracting with NaOH (NaOH-P), Na citrate-bicarbonate (CB-P), Na citrate 2 times (C1-P and C2-P), Na citrate-ascorbate (CAs-P), Na citrate-bicarbonate-dithionite (CBD-P), Na acetate (NaAc-P), and HCl (HCl-P). Results showed that NaOH-P was negatively correlated with active iron oxides. CB-P was positively correlated with silt content and negatively related to citrate-bicarbonate-dithionite extractable Fe (Fed). This result illustrates the weathering effect on Ca-P, with Ca-P content declining as a consequence of weathering. A negative correlation was observed between C1-P and citrate ascorbate extractable Fe (FeCAs). Second citrate extractable P (C2-P) was negatively related to calcium carbonate equivalent and positively related to hydroxylamine-hydrochloride and neutral ammonium acetate-hydroquinone extractable Mn (Mnh and Mnq). Fine silt (Fsilt) was the most influential factor affecting CAs-P. It seemed citrate-dithionite-bicarbonate extractable Al (Ald), Mnh, and Mnq have been sinks for CBD-P, while free iron oxide compounds (Feo, Fec, and FeCAs) were a major contributing factor for the formation of NaAc-P. Stable P compounds (HCl-P) of highly calcareous soils originated from coarse silt (Csilt) and hydroxylamine-hydrochloride extractable Mn (Mnh).

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