| The interaction of bacteria in stimulating the wheat growth and reducing the pathogenicity of Fusarium sp. |
| کد مقاله : 1021-11THCBIOCONTROL (R1) |
| نویسندگان: |
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Ehsan Hasanvand *1، Hosein Mirzaei2، Mostafa Darvishnia3، Samira Pakbaz2 1PhD student of plant protection, Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khoramabad, Iran 2Assistant professor, Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khoramabad, Iran 3Professor of plant protection, Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khoramabad, Iran |
| چکیده مقاله: |
| Wheat is one of the most important crops that is widely cultivated in most agricultural fields. Seed inoculation with plant growth promoting rhizobacteria (PGPR) is a suitable approach in health management, improving production and quality of agricultural products. The aim of the current research was to isolate and identify plant growth enhancing bacteria from the rhizosphere of wheat in Selseleh county and to evaluate the inhibition of the pathogenic fungus Fusarium sp growth. Screening of PGPR isolates was done using tests of the ability to produce indole acetic acid, siderophore, protease, bacterial swarming movement, biofilm formation, phosphate solubility and biological control effect in vitro conditions. Four best isolates were selected out of 100 bacterial isolates isolated from wheat rhizosphere. Superior isolates have been identified based on morphological-biochemical characteristics and nucleotide sequence of 16s rDNA region named Pseudomonas sp., Pseudomonas brassicacearum, Exiguobacterium sp. and Acinetobacter calcoaceticus. In this research, Pseudomonas sp. showed the highest amount of IAA production (5.59 µg.ml), siderophore production (2.35 cm), protease production (1.7 cm) and phosphate dissolution (390 µg.ml) among the four bacterial isolates. The highest percentage of inhibiting the pathogenic fungus growth related to the P. brassicacearum isolate with the value of 49.33%. |
| کلیدواژه ها: |
| Biological control, Interaction, PGPR, Wheat |
| وضعیت : چکیده برای ارائه به صورت پوستر پذیرفته شده است |
