(2016). Physiological and Biochemical Responses of Medicagotruncatula to Drought Stress. Egyptian Journal of Botany, 56(3), 895-912. doi: 10.21608/ejbo.2016.4023
. "Physiological and Biochemical Responses of Medicagotruncatula to Drought Stress". Egyptian Journal of Botany, 56, 3, 2016, 895-912. doi: 10.21608/ejbo.2016.4023
(2016). 'Physiological and Biochemical Responses of Medicagotruncatula to Drought Stress', Egyptian Journal of Botany, 56(3), pp. 895-912. doi: 10.21608/ejbo.2016.4023
Physiological and Biochemical Responses of Medicagotruncatula to Drought Stress. Egyptian Journal of Botany, 2016; 56(3): 895-912. doi: 10.21608/ejbo.2016.4023
Physiological and Biochemical Responses of Medicagotruncatula to Drought Stress
It is frequently observed that drought stress decreased plant growth decreased plant growth and induced cellular damages. However, the damages. However, the underlying physiological and biochemical mechanisms are not well understood. Medicagotruncatulawassubjected to drought stress by water withdrawing at mature stage and for one week. Drought stress reduced plant growth, inhibited photosynthesis, stomatal conductance and induced oxidative stress. Water stress induced changes e.g. it increased osmo-protectants (proline, glycine betaine), and the level of oxidative stress parameters (H2O2 and lipid peroxidation). In parallel with higher levels of H2O2 and MDA, there were increase in NADPH oxidase and lipoxygenase (LOX) activities in Medicagotruncatula. Presumably as a consequence of the induction of H2O2 production, activation in some antioxidant defense components was observed (e.g. increased superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), peroxidase (POX) and glutathione reductase (GR). Other antioxidant component were also significantly increased by drought stress.
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