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Abstract

Lead (Pb) affects plant growth and its related physio-biochemical functions negatively. The present study investigated the responses of five different fragrant rice cultivars viz., Meixiangzhan (MXZ-2), Xiangyaxiangzhan (XYXZ), Guixiangzhan (GXZ), Basmati-385 (B-385), and Nongxiang-18 (NX-18) to four different Pb concentrations viz., 0, 400, 800 and 1200 μM. Results depicted that Pb toxicity significantly (P  stems > leaves. Furthermore, significant but negative correlations among Pb uptake and plant height (r = −0.79), tillers per plant (r = −0.91) and plant dry biomass (r = −0.81) were recorded for all rice cultivars whereas the values of translocation factor (TF) from stems to leaves were higher than roots to stems. In sum, Pb reduced the early growth and caused physio-biochemical changes in all rice cultivars, nonetheless, GXZ proved better able to tolerate Pb stress than all other rice cultivars under study.

Item Type:	Article
Authors/Creators:	Ashraf, U and Hussain, S and Anjum, SA and Abbas, F and Tanveer, M and Noor, MA and Tang, X
Keywords:	antioxidants, aromatic rice, lead, oxidative stress, Pb uptake
Journal or Publication Title:	Plant Physiology and Biochemistry
Publisher:	Editions Scientifiques Medicales Elsevier
ISSN:	0981-9428
DOI / ID Number:	10.1016/j.plaphy.2017.04.019
Copyright Information:	Copyright 2017 Elsevier Masson SAS
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