Document Type : Original Article

Authors

University of Agricultural and Natural Resources Sciences, Gorgan, Iran

Abstract

To survey the effects of flooding during the reproductive growth stages of aerenchyma formation and ethylene production in soybean cultivar DPX experiment  the completely randomized factorial was in 2012 in Gorgan University of Agricultural Sciences and Natural Resources. Factors examined include nutrition levels in three levels (1 - inoculated with bacteria JaponicumBradyRhizobium 2 - non-inoculated plus nitrogen fertilizer (urea) 3 - non-inoculated without nitrogen fertilizer) and the second factor is the duration ofwaterlogging stress (0, 5, 10 and 15 days). Based on the results obtained with increasing duration of flooding stress on the plant, ethylene production increases. The slope was slowly at first and then increases exponentially. Among the nutritional treatment of ethylene production , non-inoculated plus nitrogen treatments was higher than the other two treatments, and the non-inoculated treatments without fertilizer lowest ethylene production was observed. Images of cross sections of soybean plants showed that the stress increases with the duration of flooding stress signsaerenchyma tissue formation was observed in soybean plants. 15 days of flooding treatment aerenchyma tissue formation was observed at all levels of nutrition.

Keywords

Ahmed, S., Nawata, E., Hosokawa, M., Domae, Y., and Sakuratani, T. 2002. Alterations in photosynthesis and some antioxidant enzymatic activities of mungbean subjected to waterlogging. Plant Science.  163: 117-123.
Bailey-Serres j, Chang R. 2005. Sensing and signaling in response to oxygen deprivation in plant and other organisms. Ann. Botany. 96: 507-18.
EmdadulHaque, Md., Abe, F and Kawaguchi, K. 2010. Formation and extension of lysigenousaerenchyma in seminal root cortex of spring wheat (Triticumaestivumcv. Bobwhite line SH 98 26) seedlings under different strengths of waterlogging. Plant Root 4:31-39
Galeshi,S., Torabi, B., Rahemi, A,. Barzegar, A. Translated. 2008. Stress management in plants.Publications Gorgan University of Agricultural Sciences and Natural Resources. 307Pp.
He C-J, Morgan PW, Drew MC. 1996.Transduction of an ethylene signal is required for cell death and lysis in the root cortex of maize during aerenchyma formation induced by hypoxia. Plant physiology 112: 463-472.
Jackson M. B. 2002. Long-distance signaling from roots to shoots assessed: the flooding story. Journal of Experimental Botany References 53, 175–181.
Kafi, m., Borzouei, A., Kamandi, A., Nabati, J. 2008. Environmental Stress Physiology of Plants. Publications Jihad Mashhad University. 235Pp.
Komatsu, S., Kobayashi, Y., Nishizawa, K., Nanjo, Y., Furukawa, K. 2010. Comparative proteomics analysis of differentially expressed proteins in soybean cell wall during flooding stress. Amino Acids. 39:1435–1449.
MalekMohammadi, F., Kalantari, Kh., Trkzadh, M. 2004. The Effect of flooding stress on the induction of oxidative stress and concentration in pepper plants (Capsicum annum L.).Iranian Biology. 18:2. 110-119.
Shimamura, S., Mochizuki, T., Nada, Y., Fukuyama, M. 2003. Formation and function of secondary aerenchyma in hypocotyl, roots and nodules of soybean (Glycine max) under flooded conditions. Plant and Soil251: 351–359.
Thomas, A. L., Guerreiro, S. M. C and Sodek. L. 2005. Aerenchyma Formation and Recovery from Hypoxia of the Flooded Root System of Nodulated Soybean. Annals of Botany 96: 1191–1198.
Y. Mano F. Omori T. Takamizo B. Kindiger R. McK. Bird C. H. Loaisiga H. Takahashi. 2007. QTL mapping of root aerenchyma formation in seedlings of a maize£rareteosinte “Zeanicaraguensis” cross. Plant Soil 295:103–113.
Youn. J, Kyujung. V., Kim. W., Yun. H, Kwon. Y, Ryu. Y, Lee. S. 2008. Waterlogging Effects on Nitrogen Accumulation and N2 Fixation  of Supernodulating Soybean Mutants. Journal. Crop Science. Biotech. 11 (2): 111-118.