biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 46:609-612, 2003 | DOI: 10.1023/B:BIOP.0000041072.83780.0d

Influence of Ethephon and 2,5-Norbornadiene on Antioxidative Enzymes and Proline Content in Salt-Stressed Spinach Leaves

Y. Demir1, L. Oztürk2
1 K.K. Eğitim Fakültesi, Biyoloji Bölümü, Atatürk Üniversitesi, Erzurum-, Türkiye, e-mail
2 Fen-Edebiyat Fakültesi Biyoloji Bölümü, GOP Üniversitesi, Tokat-, Türkiye

The effects of ethephon, an ethylene generating compound, and 2,5-norbornadiene (NBD), an inhibitor of ethylene action, on peroxidase (POD; EC 1.11.1.7), catalase (CAT; EC 1.11.1.6), polyphenol oxidase (PPO; EC 1.14.18.1) activities and proline content in salt-stressed spinach leaves were investigated. POD and PPO activities were increased by NaCl + ethephon + NBD combination and reduced by NBD. Also, ethephon increased the CAT activity while ethephon + NBD reduced CAT activity. NaCl + ethephon increased proline content. The antagonistic effect of ethephon and NBD was seen on POD and PPO activity and proline accumulation, but was not on CAT activity.

Keywords: catalase; ethephon; NaCl; 2,5-norbornadiene; peroxidase; polyphenol oxidase; Spinacia oleracea
Subjects: antioxidants; catalase; ethephon, antioxidative enzymes; 2,5-norbornadien, antioxidative enzymes; peroxidases; polyphenol oxidase; proline, salt stress, antioxidative enzymes; salt stress, proline, antioxidative enzymes; spinach; Spinacia oleracea

Published: December 1, 2003  Show citation

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Demir, Y., & Oztürk, L. (2003). Influence of Ethephon and 2,5-Norbornadiene on Antioxidative Enzymes and Proline Content in Salt-Stressed Spinach Leaves. Biologia plantarum, 46(4), 609-612. doi: 10.1023/B:BIOP.0000041072.83780.0d
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