the South Carolina Agricultural Experiment Station. This paper is a portion of a thesis submitted by Anne Marie Johnson in fulfilling a MS degree requirement. This research was funded, in part, by Super Sod Inc., of Orangeburg, S.C. Use of trade names
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Shiow Y. Wang, Miklos Faust, and Hong J. Jiao
The effects of thidiazuron on changes in superoxide dismutase (SOD) activity in apple (Malus domestica Borkh cv. York Imperial) buds during dormancy break were determined. Dormant buds had low SOD activity. Increased SOD activity was correlated with budbreak induced by thidiazuron. Buds contained three distinct forms of SOD: Cu, Zn-SOD; Mn-SOD; and Fe-SOD. Most of the SOD activity in apple buds was attributed to Cu and Zn-SOD, followed by Mn-SOD. Iron-SOD was not present in dormant buds, and only a trace amount was found as buds started rapid expansion. Chemical name used: N-phenyl-N′-1,2,3,-thidiazol-5-ylurea (thidiazuron).
Feifei Li, Da Zhan, Lixin Xu, Liebao Han, and Xunzhong Zhang
L. ( Liu and Huang, 2000 )], tall fescue [ Festuca arundinacea (Schreb.) ( Cui et al., 2006 )], and kentucky bluegrass ( Jiang and Huang, 2001 ). Liu and Huang (2000) found the activities of SOD and CAT decreased and POD activity increased in both
Cong Li, Lie-Bao Han, and Xunzhong Zhang
higher activities of the three detoxifying enzymes (SOD, peroxidase, and CAT) and lower ROS content relative to WT plants. Mondo grass is an evergreen perennial herb with a strong root system. It possesses good drought and heat tolerance and keeps green
Reagan W. Hejl, Benjamin G. Wherley, James C. Thomas, and Richard H. White
) reported on effluent water-quality parameters for multiple wastewater treatment plants in California and noted that Na content of the sources generally ranged from 109 to 186 ppm and SAR ranged from 3.3 to 5.7. Information concerning direct effects of sodic
Junqin Zong, Yanzhi Gao, Jingbo Chen, Hailin Guo, Yi Wang, Fan Meng, Yiwei Jiang, and Jianxiu Liu
baldcypress ( Taxodium distichum ) and montezuma cypress ( Taxodium mucronatum ) in surviving waterlogging. In enzymatic defense systems, SOD plays a central role in catalyzing the dismutation of O 2 ·- to H 2 O 2 and O 2 ( Bowler et al., 1992 ). In
Zhen Shu, Yimin Shi, Hongmei Qian, Yiwei Tao, and Dongqin Tang
/v) PVP to extract peroxidase [POD, electrical conductivity (EC) 1.11.1.7]. Superoxide dismutase (SOD, EC 1.15.1.1) was extracted in 50 m m phosphate buffer (pH 7.8) by using 1 g of fresh tepal tissues. The extraction procedures were carried out on ice
Longxing Hu, Tao Hu, Xunzhong Zhang, Huancheng Pang, and Jinmin Fu
nonenzymatic detoxification mechanisms). Antioxidant enzymes consisted of superoxide dismutase, catalase, peroxidase (POD), ascorbate peroxidase, etc. ( Apel and Hirt, 2004 ). SOD catalyzes the dismutation of O 2 − to molecular O 2 and H 2 O 2 ( Meloni et al
Amaya Atucha, Ian A. Merwin, Chandra K. Purohit, and Michael G. Brown
treatment consisting of glyphosate applied at a rate of 2 kg a.i./ha in mid-May and July each year; 3) Mowed Sod: a red fescue ( Festuca rubra L) turfgrass originally seeded in 1991 that eventually comprised a mixture of various grass and broadleaf species
Lixin Xu, Liebao Han, and Bingru Huang
superoxide to produce hydrogen peroxide, reducing the risk of highly reactive hydroxyl radical formation from superoxide through the metal-catalyzed Haber-Weiss-type reaction ( Smirnoff, 1993 ). SOD is categorized into three groups on the basis of the metal