Understanding leaf biochemical traits for Sunflower (Helianthus annuus L.) cultivars grown in chromium stressed environment
Abstract Environmental pollution is big curse for plants, animals and other living organisms. Being atmospheric pollutant, different levels of Cr6+ (50-500mg/kg) were applied to sunflower plants to determine its toxic effects. It was found that there was imbalanced distribution of leaf nutrients. XRF studies for various elements revealed alteration in leaf appearance due to nutritional deficiency. Leaf protein was reduced and proline increased pretentiously (p≤0.05) along Cr concentration. Viability of Cr enriched plants strongly showed the environmental protective role of proline. Present study mainly expresses chromium metal toxicity for carbon and nitrogen metabolism predicting poor growth, biomass and yield attributes in Cr treated plants.
Abstract
Environmental pollution is big curse for plants, animals and other living organisms. Being atmospheric pollutant, different levels of Cr6+ (50-500mg/kg) were applied to sunflower plants to determine its toxic effects. It was found that there was imbalanced distribution of leaf nutrients. XRF studies for various elements revealed alteration in leaf appearance due to nutritional deficiency. Leaf protein was reduced and proline increased pretentiously (p≤0.05) along Cr concentration. Viability of Cr enriched plants strongly showed the environmental protective role of proline. Present study mainly expresses chromium metal toxicity for carbon and nitrogen metabolism predicting poor growth, biomass and yield attributes in Cr treated plants.
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Int. J. Biosci. 2016<br />
Chromium accumulation by barley seedl<strong>in</strong>gs<br />
(Hordeumvulgare L). Journal of experimental botany<br />
25, 241-251.<br />
S<strong>in</strong>gh AK. 2001. Effect of trivalent and hexavalent<br />
<strong>chromium</strong> on sp<strong>in</strong>ach (Sp<strong>in</strong>acea oleracea L.)<br />
Environmental Ecology, 19, 807-810.<br />
S<strong>in</strong>gh AK, Misra P, Tandon PK. 2006.<br />
Phytotoxicity of <strong>chromium</strong> <strong>in</strong> paddy (Oryza sativa<br />
L.) plants. Journal of Environmental Biology,<br />
27(2), 283-285.<br />
Suwalsky M, Castro R, Villena F, Sotomayor<br />
CP. 2008. Cr (III) exerts stronger structural effects<br />
than Cr (VI) on human erythrocyte membrane and<br />
molecular modes. Journal of Inorganic Biochemistry,<br />
102, 842-849.<br />
Turner MA, Rust RH. 1971. Effects of<br />
<strong>chromium</strong> on growth and m<strong>in</strong>eral nutrition of<br />
soybeans. Soil Sci. Soc. Am. Proc. 35, 755-758.<br />
Uchida R. 2000. Essential nutrients <strong>for</strong> plant<br />
growth: Nutrient Function and Deficiency<br />
Symptoms (Chapter-3). College of Tropical<br />
Agriculture and Human Resources, University of<br />
Hawaii at Manoa. Copy right, 2000.<br />
Vazquez MD, Poschenrieder C, Barcelo J.<br />
1987. Chromium VI <strong>in</strong>duced structural and<br />
ultrastructural changes <strong>in</strong> Bush bean plants. Annals<br />
of Bot. 59, 427-438.<br />
Zayed AM, Terry N. 2003. Chromium <strong>in</strong> the<br />
<strong>environment</strong>: factors affect<strong>in</strong>g biological remediation.<br />
Plant and soil. 249, 139-156.<br />
Zeng<strong>in</strong> FK, Munzuroglu O. 2005. Effects of some<br />
heavy metals on content of chlorophyll, prol<strong>in</strong>e and<br />
some antioxidant chemicals <strong>in</strong> bean (Phaseolus<br />
vulgaris L.) seedl<strong>in</strong>gs. Acta Biologica Cracoviensia<br />
Series Botanica 47(2), 157-16.<br />
202 Atta et al.
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