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Samson Zeray Tesfay, Sakhile Mathe, Albert T. Modi, and Tafadzwanashe Mabhaudhi

stresses such as drought and heat stress. ELVs have long been recognized as abundant sources of nutritious essential nutrients ( Aletor et al., 2002 ; Shukla et al., 2006 ). They produce nutritious low molecular mass nonenzymatic, enzymatic antioxidants

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Sukhvinder Pal Singh and Zora Singh

· − ), hydrogen peroxide (H 2 O 2 ), nitric oxide (NO · ), and peroxynitrite (ONOO · ) are produced in plants under normal and stress conditions ( Apel and Hirt, 2004 ). If these are not removed or detoxified by the enzymatic and non-enzymatic antioxidants, they

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Clíssia Barboza da Silva, Julio Marcos-Filho, Pablo Jourdan, and Mark A. Bennett

the seed metabolism, and favors early seedling growth. A study on the dynamics of the antioxidant system and seedling establishment has linked antioxidant enzymatic activity as well as concentration of ROS to the protrusion of the primary root. Chen

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Martha Edith López-López, José Ángel López-Valenzuela, Francisco Delgado-Vargas, Gabriela López-Angulo, Armando Carrillo-López, Lidia Elena Ayón-Reyna, and Misael Odín Vega-García

significantly the SOD activity (3.83–5.33 U·mg −1 of protein) and the highest value was observed in the HWT mangos. Fig. 3. Antioxidant enzymatic activity of superoxide dismutase (SOD) ( A ), catalase (CAT) ( B ), and ascorbate peroxidase (APX) ( C ) in mango

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Lixin Xu, Liebao Han, and Bingru Huang

further understanding molecular factors controlling antioxidant defense for drought tolerance. The present study was designed to examine antioxidant enzyme responses to drought stress and rewatering at both enzymatic activity and transcript levels as well

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Kai Jia, Cunyao Yan, Huizhuan Yan, and Jie Gao

, 2015 ; Zhu, 2003 ). The antioxidant enzyme activity of plants has been considered to be related to salt tolerance in many studies ( Abogadallah, 2010 ; Hannachi and Van Labeke, 2018; Noreen et al., 2010 ). Salt stress increases the antioxidant enzyme

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Giacomo Cocetta, Ilaria Mignani, and Anna Spinardi

showed the greatest effectiveness on enhancing antioxidant enzymatic potential, by increasing the activity of APX, DHAR, and MDHAR significantly. Besides the maintenance of ASA levels in response to 1-MCP, an increase in TBARS was recorded starting from

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Pavlos Tsouvaltzis, Angelos Deltsidis, and Jeffrey K. Brecht

is also confirmed by the strong correlation ( R = 0.974, P < 0.005) between these two parameters ( Table 1 ). Although chemical or enzymatic oxidations have been widely shown to cause a progressive decrease in polyphenol antioxidant properties

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Rashad M. Balal, Muhammad M. Khan, Muhammad A. Shahid, Neil S. Mattson, Tahira Abbas, Muhammad Ashfaq, Franscisco Garcia-Sanchez, Usman Ghazanfer, Vicente Gimeno, and Zafar Iqbal

generation of free oxygen radicals, thus inducing oxidative stress. ROS can cause toxic reactions such as lipid peroxidation, protein degradation, and DNA mutation ( McCord, 2000 ). In response, a plant may synthesize more antioxidant enzymes ( Sairam et al

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Sima Panahirad, Rahim Naghshiband-Hassani, Babak Ghanbarzadeh, Fariborz Zaare-Nahandi, and Nasser Mahna

Plums ( Prunus domestica L.) are a good source of antioxidants, anthocyanin, phenolic compounds, nutritional elements, and some vitamins ( Cevallos-Casals et al., 2006 ) that may benefit human health ( Gil et al., 2002 ; Wargovich, 2000 ), but