tailieunhanh - Study on the accumulation of copper from soil to biomass of some vegetables

Study on the accumulation of copper from soil to biomass of some vegetables. The results of this work showed that the absorption of copper from soil to these plants depended on biolog ical features of each plant and thus, might be usefully applicable in agricultural cultivation of the mentioned plants. | 316 DALAT UNIVERSITY JOURNAL OF SCIENCE Volume 6, Issue 3, 2016 316–323 STUDY ON THE ACCUMULATION OF COPPER FROM SOIL TO BIOMASS OF SOME VEGETABLES Le Thi Thanh Trana*, Nguyen Van Haa, Nguyen Mong Sinhb, Nguyen Ngoc Tuanc a b The Faculty of Chemistry, Dalat University, Lamdong, Vietnam Lamdong Union of Science and Technology Associations, Lamdong, Vietnam c Nuclear Research Institute, Lamdong, Vietnam Article history Received: April 11th, 2016 Received in revised form (1st): June 28th, 2016 | Received in revised form (2nd): July 28th, 2016 Accepted: August 28th, 2016 Abstract In this study, the accumulation of copper from soil to biomass of spinach, lettuce, carrot and potato was investigated. The results of this work showed that the absorption of copper from soil to these plants depended on biological features of each plant and thus, might be usefully applicable in agricultural cultivation of the mentioned plants. Keywords: Accumulation of copper; Carrot; Copper-polluted soil; Lettuce; Potato; Spinach. 1. INTRODUCTION Daniel (1964) documented that Sommer is the first scientist to clearly demonstrate that copper is an essential micronutrient for plants. This element activates some enzymes in plants which are involved in lignin synthesis. It is also essential in several other enzyme systems including those that are required in the process of photosynthesis, in plant respiration, and in plant metabolism of carbohydrates and proteins (Daniel, 1964). Daniel (1964) showed that copper played an important role in synthetic and metabolic processes of gluxide, phosphatide, nucleprotide and protide. Furthermore, this metal actively involved in many stages of exchange nitrogen denitrification, such as free nitrogen assimilation and protide synthesis (Yruela, 2005). Thus, in the course of farming, we should supply copper with appropriate levels to ensure the optimize growth and development of plants. However, the supplement with high concentration of copper can cause