BIOLOGICAL CONTROL OF FUSARIUM WILT OF POTATO USING ANTAGONISTIC STRAINS OF BACTERIA

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KHORASANI GHAZADEH A.; ALIZADEH A.; SAFAIE N.

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Journal: IRANIAN JOURNAL OF PLANT PATHOLOGY Year:2008 | Volume:44 | Issue:1 (173) Page(s): 1-21

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Title

BIOLOGICAL CONTROL OF FUSARIUM WILT OF POTATO USING ANTAGONISTIC STRAINS OF BACTERIA

Author(s)

KHORASANI GHAZADEH A. | ALIZADEH A. | SAFAIE N. | Issue Writer Certificate

Keywords

POTATOQ2

BIOLOGICAL CONTROLQ3

FUSARIAL WILTQ2

BACTERIAL ANTAGONIST AND MUTANTQ3

Abstract

POTATO (Solanum tuberosum L.) covers 22 million hec. of the cultivable l& s of the world, producing more than 300 million tons of tuber & is considered to be a major diet ranking fourth after wheat, barley & rice. One hundred twenty strains of bacteria were recovered from POTATO rhizospheres & purified on NA & King’B media. Of these, 27 strains exhibited high antagonistic effects using dual-culture tests. Antagonistic potential of the selected bacteria were evaluated by their ability to produce antibiotics, volatile metabolites & siderophore. Of the 27 isolates tested, eight strains including two mutants exhibited higher antagonistic effects & were selected for greenhouse experiments. These were Pseudomonas fluorescens biov. III DA1, DA1m, DA3, Bacillus subtilis DM1, DM1m, DP1, B. brevis B1 & P. fluorescens CHAO (A model strain). Biocontrol test on POTATO tubers was performed by two methods of seed coating & soil drenching, in a completely r& omized design experiment with 37 treatments & 3 replicates. P. fluorescens biov. III DA1 showed the greatest effect on reduction of disease severity, while B. brevis B1 had the greatest effect on growth parameters. Results of antagonist & pathogen population counts to rifampicin & nalidixic acid during greenhouse tests showed a negative correlation (r=-64.3%) between these two parameters.

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APA: Copy

KHORASANI GHAZADEH, A., ALIZADEH, A., & SAFAIE, N.. (2008). BIOLOGICAL CONTROL OF FUSARIUM WILT OF POTATO USING ANTAGONISTIC STRAINS OF BACTERIA. IRANIAN JOURNAL OF PLANT PATHOLOGY, 44(1 (173)), 1-21. SID. https://sid.ir/paper/48397/en

Vancouver: Copy

KHORASANI GHAZADEH A., ALIZADEH A., SAFAIE N.. BIOLOGICAL CONTROL OF FUSARIUM WILT OF POTATO USING ANTAGONISTIC STRAINS OF BACTERIA. IRANIAN JOURNAL OF PLANT PATHOLOGY[Internet]. 2008;44(1 (173)):1-21. Available from: https://sid.ir/paper/48397/en

IEEE: Copy

A. KHORASANI GHAZADEH, A. ALIZADEH, and N. SAFAIE, “BIOLOGICAL CONTROL OF FUSARIUM WILT OF POTATO USING ANTAGONISTIC STRAINS OF BACTERIA,” IRANIAN JOURNAL OF PLANT PATHOLOGY, vol. 44, no. 1 (173), pp. 1–21, 2008, [Online]. Available: https://sid.ir/paper/48397/en

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