File Name : figure s2.1.tif

Caption : fig.s2.1. selection of an optimum dosage of fe-znbnps for amelioration of cd on basis of growth parameters, rwc% and photosynthetic pigment content a) root length; b) shoot length; c) rwc%; d) total chlorophyll content; e) carotenoid content. the stars denote significant statistical difference at p<0.05; ns: p > 0.05, *: p ≤ 0.05, **: p ≤ 0.01, ****: p ≤ 0.001 and indicates difference between control and cd. symbols denote significant differences between cd and cd+zf1, cd+zf2, cd+zf3 treatments; δ: p > 0.0 5, γ: p ≤ 0.05, β: p ≤ 0.01, α : p ≤ 0.001.
[con (0 cd+0fe-znbnp), cd (10μm cdcl2), cd+zf1 (10μm cdcl2+ 10mg l-1 fe-znbnp), cd+zf2 (10μm cdcl2+ 25mg l-1 fe-znbnp), cd+zf3 (10μm cdcl2+ 50mg l-1 fe-znbnp)]


File Name : figure s2.2.tif

Caption : fig.s2.2. comparative analysis of fe-znbnp, fe3o4 mnp and zno mnp on growth parameters and photosynthetic pigment contents a) fresh weight; b) dry weight; c) chlorophyll a content; d) chlorophyll b content; e) total chlorophyll content; f) carotenoid content, g) phenotypic characters of the seedlings. the stars denote significant statistical difference at p<0.05; ns: p > 0.05, *: p ≤ 0.05, **: p ≤ 0.01, ****: p ≤ 0.001 and indicates difference between control and cd, fe-znbnp, femnp, znmnp, femnp+znmnp; symbols denote significant differences between cd and cd+bnp, cd+femnp, cd+znmnp, cd+femnp+znmnp treatments; δ: p > 0.0 5, γ: p ≤ 0.05, β: p ≤ 0.01, α : p ≤ 0.001.
[con (0 cd+0fe-znbnp), bnp (25 mg l-1  fe-znbnp), femnp (25 mg l-1  fe3o4mnp), znmnp (25 mg l-1  znomnp), femnp+znmnp (25 mg l-1  fe3o4mnp+znomnp), cd (10μm cdcl2), cd+bnp (10μm cdcl2+ 25 mg l-1  fe-znbnp), cd+femnp (10μm cdcl2+ 25 mg l-1  fe3o4mnp), cd+znmnp (10μm cdcl2+ 25 mg l-1  znomnp), cd+femnp+znmnp (10μm cdcl2+ 25 mg l-1  fe3o4mnp+znomnp)]


File Name : figure s2.3.tif

Caption : fig.s2.3. analysis of sugar content in 21days old seedlings post treatment with fe-znbnp. a) reducing sugar content in root; b) reducing sugar content in shoot; c) non-reducing sugar content in root; d) non-reducing sugar content in shoot. the data represent the mean values of three replicates and the bars represent standard deviations. the stars denote significant statistical difference at p<0.05; ns: p >0.05, *: p ≤0.05, **: p ≤0.01, ***: p ≤0.001.

File Name : figure s3.1.tif

Caption : fig.s3.1. relative expression of a) osfesod in root; b) osfesod in shoot; c) oscu/znsod in root; d) oscu/znsod in shoot; e) osmnsod in root; f) osmnsod in shoot; g) osgpx3 in root; h) osgpx3 in shoot; i) oscat-a in root; j) oscat-a in shoot; k) oscat-b in root; l) oscat-b in shoot; m) osapx-1 in root; n) osapx-1 in shoot; o) osapx-2 in root; p) osapx2 in shoot. the data represent the mean values of three replicates and the bars represent standard deviations. the stars denote significant statistical difference at p<0.05; ns: p >0.05, *: p ≤0.05, **: p ≤0.01, ***: p ≤0.001.
[con (0 cd+0fe-znbnp), cd (10 μm cdcl2), cd+bnp (10 μm cdcl2+ 25 mg l-1 fe-znbnp), bnp (25 mg l-1 fe-znbnp)]


File Name : figure s2.4.tif

Caption : fig.s2.4. scanning electron micrograph (sem) of stomata and root tips of 21days old rice seedlings under co-application of cd and fe-znbnp and individual application of fe-znbnp.
[con (0 cd+0fe-znbnp), cd (10 μm cdcl2), cd+bnp (10 μm cdcl2+ 25 mg l-1 fe-znbnp), bnp (25 mg l-1 fe-znbnp)


File Name : figure s2.5.tif

Caption : fig.s2.5. evaluation of stress parameters in 21days old seedlings post co-treatment with cd and fe-znbnp. a) h2o2 content in root; b) h2o2 content in shoot; c) proline content in root; d) proline content in shoot e) methylglyoxal content in root f) methylglyoxal content in shoot. the data represent the mean values of three replicates and the bars represent standard deviations. the stars denote significant statistical difference at p<0.05; ns: p >0.05, *: p ≤0.05, **: p ≤0.01, ***: p ≤0.001.
[con (0 cd+0fe-znbnp), cd (10 μm cdcl2), cd+bnp (10 μm cdcl2+ 25 mg l-1 fe-znbnp), bnp (25 mg l-1 fe-znbnp)]


File Name : figure s2.6.tif

Caption : fig.s2.6. evaluation of ascorbate metabolism in 21days old seedlings post co-treatment with cd and fe-znbnp. a) reduced ascorbate (asa) content in root; b) reduced ascorbate content (asa) in shoot; c) total ascorbate content in root; d) total ascorbate content in shoot e) dehydroascorbate (dha) content in root f) dehydroascorbate (dha) content in shoot g) asa/dha ratio in root h) asa/dha ratio in shoot. the data represent the mean values of three replicates and the bars represent standard deviations. the stars denote significant statistical difference at p<0.05; ns: p >0.05, *: p ≤0.05, **: p ≤0.01, ***: p ≤0.001.
[con (0 cd+0fe-znbnp), cd (10 μm cdcl2), cd+bnp (10 μm cdcl2+ 25 mg l-1 fe-znbnp), bnp (25 mg l-1 fe-znbnp)]


File Name : figure s2.7.tif

Caption : fig.s2.7. evaluation of secondary metabolites in 21days old seedlings post co-treatment with cd and fe-znbnp. a) total phenol content in root; b) total phenol content in shoot; c) total flavonoid content in root; d) total flavonoid content in shoot. the data represent the mean values of three replicates and the bars represent standard deviations. the stars denote significant statistical difference at p<0.05; ns: p >0.05, *: p ≤0.05, **: p ≤0.01, ***: p ≤0.001.
[con (0 cd+0fe-znbnp), cd (10 μm cdcl2), cd+bnp (10 μm cdcl2+ 25 mg l-1 fe-znbnp), bnp (25 mg l-1 fe-znbnp)]