Abstract
In this study, physiological and biochemical changes caused by mycorrhizal symbiosis in chickpea plants under drought conditions were investigated in both root and leaf. Drought stress reduced leaf water potential, but mycorrhizal symbiosis caused a significant increase in leaf water potential. However, the application of mycorrhiza under drought stress caused an increase in the amount of elements that are very important for the development of the plant in the root and leaf. In our study, drought increased the proline concentration and MDA content, while mycorrhiza application decreased them in both leaf and root. In addition, while mycorrhizal application increased the activity of catalase, it decreased the activity of superoxide dismutase. In general, enzyme activities were found to be higher in the leaf, but no distinct pattern was obtained between root and leaf in other analyzes. The study shows that the responses of mycorrhizal symbiosis in chickpea plants may change depending on the severity of the drought. Especially antioxidant enzyme activities and proline content patterns reveal that more comprehensive studies should be conducted on these issues. However, continuing studies until determining the effects of AMF symbiosis on grain yield under drought may provide more comprehensive results.
Highlights
Legumes (Fabaceae) are a very valuable plant group both agriculturally and economically
In this study, it was determined that inoculation of chickpea plants with G. mosseae improved plant tolerance for drought stress
This situation has been shown in the literature in general, some data obtained from this study have the potential to provide new information to the literature and some issues related to mycorrhizal symbiosis should be studied in more detail
Summary
Legumes (Fabaceae) are a very valuable plant group both agriculturally and economically. Arbuscular mycorrhizal fungi (AMF) colonize within the root cortex, producing large amounts of hyphae (mycelia), increasing the surface area of the infected root This allows the nutrients and water in the form and amount that the plant cannot take from the soil, away from the root, through the mycorrhiza hyphae and transmit it to the upper parts of the plant. Increasing the surface area of plant roots infected with AMF provides a great advantage for the plant to cope with stress, especially in drought stress conditions (Ortaş, 2012) This advantage is not limited to taking water and mineral substances from the soil; It includes many physiological and biochemical events such as the mycorrhizal promoting root regeneration, accelerating plant growth, promoting intracellular soluble substance concentration, activating the antioxidant system (Kaya et al, 2009). It has been observed that the plant creates different stress responses with the increase of stress intensity
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