THE EXPRESSION OF CHITINASE GENES (NAG1 AND ECH42) OF TRICHODERMA ATROVIRIDE IN INTERACTION WITH PSEUDOMONAS FLUORESCENS

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SHIRZAD AKBAR; SHARIFI TEHRANI A.; AHMADZADEH MASOUD; BEHBOUDI K.; JAVAN NIKKHAH M.

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Journal: IRANIAN JOURNAL OF PLANT PATHOLOGY Year:2009 | Volume:44 | Issue:4 (176) Page(s): 330-346

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Title

THE EXPRESSION OF CHITINASE GENES (NAG1 AND ECH42) OF TRICHODERMA ATROVIRIDE IN INTERACTION WITH PSEUDOMONAS FLUORESCENS

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Keywords

GENE EXPRESSIONQ1

CHITINASEQ2

ECH42 AND NAG1 GENESQ3

TRICHODERMA ATROVIRIDEQ3

PSEUDOMONAS FLUORESCENSQ3

Abstract

Application of a mixture of biocontrol agents, as a promising way to control plant pathogens, may have positive or negative effects on their key biocontrol genes expression levels. In this study, interactions between DAPG+ (2,4- diacetylphloroglocinol) and DAPG- P. fluorescens strains and CHITINASE-producing T. atroviride, indicated that expression of the ech42 was repressed by co-inoculation with the P. fluorescens strains. The repression was observed in the presence of both DAPG+ and DAPG- isolates, indicating that DAPG does not play a role in the ech42 expression. In contrast, the nag1 expression did not show significant decrease in DAPG- strains. Interestingly, DAPG+ strains had a positive effect on nag1 expression. Mycelial growth of T. atroviride was reduced in the presence of bacterial isolates. This decline was significantly higher in the presence of DAPG+ isolates in comparison to DAPG- isolates, indicating a possible role of DAPG on the mycelial growth. In conclusion, our results showed that specific interactions between studied biocontrol agents, can affect the expression level of key biocontrol genes.

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APA: Copy

SHIRZAD, AKBAR, SHARIFI TEHRANI, A., AHMADZADEH, MASOUD, BEHBOUDI, K., & JAVAN NIKKHAH, M.. (2009). THE EXPRESSION OF CHITINASE GENES (NAG1 AND ECH42) OF TRICHODERMA ATROVIRIDE IN INTERACTION WITH PSEUDOMONAS FLUORESCENS. IRANIAN JOURNAL OF PLANT PATHOLOGY, 44(4 (176)), 330-346. SID. https://sid.ir/paper/48087/en

Vancouver: Copy

SHIRZAD AKBAR, SHARIFI TEHRANI A., AHMADZADEH MASOUD, BEHBOUDI K., JAVAN NIKKHAH M.. THE EXPRESSION OF CHITINASE GENES (NAG1 AND ECH42) OF TRICHODERMA ATROVIRIDE IN INTERACTION WITH PSEUDOMONAS FLUORESCENS. IRANIAN JOURNAL OF PLANT PATHOLOGY[Internet]. 2009;44(4 (176)):330-346. Available from: https://sid.ir/paper/48087/en

IEEE: Copy

AKBAR SHIRZAD, A. SHARIFI TEHRANI, MASOUD AHMADZADEH, K. BEHBOUDI, and M. JAVAN NIKKHAH, “THE EXPRESSION OF CHITINASE GENES (NAG1 AND ECH42) OF TRICHODERMA ATROVIRIDE IN INTERACTION WITH PSEUDOMONAS FLUORESCENS,” IRANIAN JOURNAL OF PLANT PATHOLOGY, vol. 44, no. 4 (176), pp. 330–346, 2009, [Online]. Available: https://sid.ir/paper/48087/en

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