COMPARASION OF PHENYLALANINE AMMONIA LYASE RESPONSE TO LEAD AND ZINC STRESS IN DIFFERENT WHEAT GENOTYPES

Abstract

Phenylalanine ammonia lyase response to zinc and lead toxicity of two different wheat genotypes (Triticum aestivum L. cv. Kıraç66 and Triticum durum Desf. cv. Kızıltan-91) were investigated in this study. The seedlings which were cultivated for 6 weeks in greenhouse conditions were harvested from the surface of soil. At the end of 6th weeks, seedlings were transferred to jars which filled full Hoagland nutrient solution. The zinc and lead stress treatments were carried out with addition of 0 (control), 100 mg/L, 200 mg/L, 300 mg/L zinc and lead in nutrient solution. It was determined that phenylalanine ammonia lyase activity increased in seedlings under zinc and lead stress. The highest phenylalanine ammonia lyase activity was determined in treatment 200 mg/L Pbon fourth day in cv. ‘Kızıltan-91’genotype. These data show that phenylalanine ammonia lyase activity appear to protect wheat seedlings against stressrelated damage

Keywords

• Abiotic stress,defence,heavy metal

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29. Current Address: Esra KOÇ: Ankara University, Faculty of Science, Department of
30. Biology, 06100, Tandoğan, Ankara, Turkey
31. E-mail :[e-mail]
32. https://orcid.org/0000-0003-1531-1744
33. Current Address: Cemil İŞLEK: Ömer Halis Demir University, Faculty of Science
34. Department of Biotechnology, Niğde, Turkey
35. E-mail: [e-mail]
36. https://orcid.org/0000-0002-6690-2846
37. Current Address: Hatice Nurhan BÜYÜKKARTAL: Ankara University, Faculty of
38. Science, Department of Biology, 06100, Tandoğan, Ankara, Turkey
39. E-mail: [e-mail]
40. https://orcid.org/0000-0002-6376-1806