Özet:

Bread wheat (Triticum aestivum L.) is one of the most important plant species in terms of sustainable agriculture, as it is a basic food source and a product that can be produced all over the world. The fact that the wheat plant has a more complex genetic structure than corn, paddy and all other agricultural products makes the breeding of this species a difficult and time-consuming process. On the other hand, it is possible to bring the yield values to the desired points by understanding the reactions of wheat to environmental factors. In this study, the relationship of resistance to drought and diseases, which are the most common problems in wheat breeding, with PGPB (Plant Growth Promoting Bacteria), which has ACC deaminase effect, was investigated. In our study, the effect of ACC deaminase-synthesizing bacteria on two different bread wheat varieties (Need 79, Bezostaja 1) and in drought conditions was investigated. In this study, expression levels of some transcription factors involved in drought resistance mechanism with ACC deaminase effect were measured by q-RT PCR. In addition, the glutathione reductase level was measured in both wheat genotypes and its relationship with the genes was revealed. Although the data obtained as a result of the study have varying degrees of activity, it has been found that PGPB bacteria have a reducing effect on the negative effects of drought stress.

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