Differential Response of Bean (Phaseolus vulgaris L.) Roots and Leaves to Salinity in Soil and Hydroponic Culture

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Tarih

2014

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Notulae Botanicae Horti Agrobotanici Cluj-Napoca

Erişim Hakkı

Özet

The present study aimed to investigate the response of common bean (Phaseolus vulgaris L. Volare) roots and leaves to salinity in different growth mediums (soil and hydroponic culture) through physiologic and biochemical analyses. The relative water content (RWC) and total chlorophyll (CHL) content decreased with 300 mM NaCl treatment in both cultures but did not change with 150 mM treatment in soil culture. Similarly, the malondialdehyde (MDA) content did not change with 150 mM treatment in soil culture, whereas it increased in all other treatments. The highest increase in hydrogen peroxide (H2O2) content was observed with 300 mM treatment in hydroponic culture. The highest increase in superoxide dismutase (SOD) activity was observed in plant leaves in the hydroponic culture. Catalase (CAT) activity did not change with 150 mM treatment in soil culture but decreased with 300 mM treatment in both cultures. Ascorbate peroxidase (APX) activity decreased in all treatments, except in the roots in the hydroponic culture. The Na+ and Cl- contents were higher in the hydroponic culture than in the soil culture. Salt stress induced more serious oxidative damage in the hydroponic culture compared to the soil culture.

Açıklama

Anahtar Kelimeler

Antioxidant enzymes, Hydroponic, Phaseolus vulgaris, Salt stress, Soil

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Künye

Bayram, D., Seçkin Dinler, B., Taşçı, E. "Differential Response of Bean (Phaseolus vulgaris L.) Roots and Leaves to Salinity in Soil and Hydroponic Culture", Vol 42, No 1 (2014) : 219-226.