Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2013.351.361Haloxylon aphyllum and Haloxylon persicum]]>ArabzadehNaser Khavari-NejadRamazan Ali 82013168Superoxide dismutase activity changes were studied at different periodic tensions using of spectrophotometric measurement of decline in NitroBlue Tetrazolium reduction to Blue Formazan at 560 nm in Haloxylon aphyllum and Haloxylon persicum. The aim of this study was to investigate the changes of superoxide dismutase in applied drought stress in two species of Haloxylon. The results showed that the effect of drought stress on increase in superoxide dismutase activity was significant (p≤0.01) in two haloxylon species. Drought increased enzyme activity at severe tensions. When two haloxylon species were placed under 7 and 14 days no-watering treatments (mild tensions), the enzyme activity was more than its activity in control treatment and less than one in 21 and 28 days no-watering treatments (severe tensions). The enzyme activity in branchlets of Haloxylon aphyllum under 21 and 28 days no-watering treatments was 20.2 and 29.5% more than its activity under control treatment respectively. This activity in Haloxylon persicum was 21.6 and 31.4% more than its activity under control treatment, respectively. With the advent of drought, superoxide dismutase activity increased in two species of haloxylon. The increasing of superoxide dismutase activity in time of dryness advent in Haloxylon aphyllum was more than Haloxylon persicum, which can be raised as an acceptable factor and vindicator in being more resistant of Haloxylon aphyllum to environmental drought.]]>El-Baky, A., H. Hanaa, M.A. Amal and M.M. Hussein,20032633638Arabzadeh, N.,2012Haloxylon aphyllum to consecutive tensions of dryness and study of their role in improving resistance to dryness of vase twigs.]]>112835Arabzadeh, N.,2012Haloxylon persicum and Haloxylon aphyllum.]]>114451Arabzadeh, N.,2011Haloxylon persicum and Haloxylon aphyllum.]]>6190201Arabzadeh, N.,2009Haloxylon persicum and H. aphyllum.]]>2009Arabzadeh, N., G.A. Tajaldini and A. Naseri,19921992Arabzadeh, N., R.A. Khavarinejad, S.F. Emadian and H. Heydari-Sharifabad,20098474482Bannister, J.V. and L. Calabrese,20062006Beauchamp, C. and I. Fridovich,197144276287Bhardwaj, J. and S.K. Yadav,2012Macrotyloma uniflorum) under drought stress.]]>71729Bhardwaj, R., N. Arora, P. Sharma and H.K. Arora,2007Zea mays L.]]>6765772Bor, M., F. Ozdemir and I. Turkan,2003Beta vulgaris L. and wild beet Beta maritima L.]]>1647784Dionisio-Sese, M.L. and S. Tobita,199813519Faize, M., L. Burgos, L. Faize, A. Piqueras and E. Nicolas et al.,20116225992613GholamhoseinianNajar, A., S. Mansouri and S. Rahighi,2009Myrtus communis Leave extracts on the induction of free radicals in Staphylococcus aureus; a possible mechanism for the antibacterial action.]]>8551556Gill, T., V. Dogra, S. Kumar, P.S. Ahuja and Y. Sreenivasulu,2011Potentilla superoxide dismutase.]]>125165172Goldberg, B. and A. Stern,197625164686470Gomez, L.D., H. Vanacker, P. Buchner, G. Noctor and C.H. Foyer,200413416621671Gupta, A.S., J.L. Heinen, A.S. Haladay, J.J. Barke and R.D. Allen,19939016291633Hippeli, S., I. Heiser and E.F. Elstner,199937167178Kardish, N., N. Magal, D. Aviv and E. Galun,199425887897Kwon, S.Y., Y.J. Jeong, H.S. Lee, J.S. Kim, K.Y. Cho, R.D. Allen and S.S. Kwak,200225873882Lee, S.H., N. Ahsan, K.W. Lee, D.H. Kim and D.G. Lee et al.,200716416261638Levitt, J.,19802nd Edn.,Li, Y., X.P. Deng, S.S. Kwak and K. Tanaka,200632451457Lowry, O.H., N.J. Rosebrough, A.L. Farr and R.J. Randall,1951193265275Maisch, T., C. Bosl, R.M. Szeimies, N. Lehn and C. Abels,20054915421552Malan, C., M.M. Greyling and J. Gressel,199069157166Massey, V., S. Strickland, S.G. Mayhew, L.G. Howell and P.C. Engel et al.,196936891897Meier, B., C. Scherk, M. Schmidt and F. Parak,1998Propionibacterium shermanii.]]>331403407Menezes-Benavente, L., S.P. Kernodle, M. Margis-Pinheiro and J.G. Scandalios,2004Zea mays L.) seedlings.]]>92936Misra, N., M.S. Ansari and A.K. Gupta,200614153Misra, H.P. and I. Fridovich,197779553560Misra, H.P. and I. Fridovich,1977183511515Saleh, A.A.H., D.Z. Abdel-Kader and A.M. El Elish,2007Vigna radiata L.) plant subjected to heat stress.]]>2344355Singh, S., N.A. Khan, R. Nazar and N.A. Anjum,2008Vigna mungo L. Hepper) under cadmium stress.]]>32532Sivakumar, T. and R. Panneerselvam,2011Datura.]]>6252260Tang, L., S.Y. Kwon, S.H. Kim, J.S. Kim and J.S. Choi et al.,20062513801386Tyler, D.D.,1975147493504Van Breusegem, F., E. Vranova, J.F. Dat and D. Inze,2001161405414Vinocur, B. and A. Altman,200516123132Weisiger, R.A. and I. Fridovich,197324835823592Winterbourn, C.C., R.E. Hawkins, M. Brian and R.W. Carrell,197585337341