Phytohormones and Cytological Processes on Zea mays Seeds of Boron

Abstract

Stress is considered as a change in any environmental factor that has an impact on the plant by affecting its biochemical, genetically and physiological response to such changes, and may on occasions lead to damage or injury. Stress is known to influence that direct translocation of the hormones have vital for plant growth such as Cytokinin (ZA), Gibberellin (GA), Indole Acetic Acid (IAA) and Abscisic Acid (ABA). This variation is reported to protect against plant stress factors. Especially, ABA has been reported protection feature in stress. Therefore, hormone and mitotic index were analyzed in order to investigate the effect of boron on the plant.

The assays five boron concentrations (0, 5, 10, 20, 40mM) were used. Hormone analysis and mitotic index were performed. Thus, the analyses were informed about hormone levels and mitotic rate to cause by boron. Consequently, it was revealed that ABA hormone to increase and the other hormones to be decrease. Also, mitotic index rate was observed to be decreased correlate to boron concentration.