Growth and volatile compounds of Martianthus leucocephalus exposed to heavy metal stress

Abstract

Growth and volatile compounds of Martianthus leucocephalus exposed to heavy metal stress.Ciência Rural, v.46, n.12, dez, 2016. Cd (15, 30, ), Cu (30, 60, ) and Zn (150, 300, ) levels on the growth of this species and its volatile compounds production. Apical cuttings were placed in plastic trays containing 6.0L nutrient solution, and after rooting, they were submitted to Cd, Cu and Zn treatments for 15 days. All the metals evaluated reduced the succulence and growth of all parts of M. ABSTRACT Martianthus leucocephalus is found in the semi-arid Northeast of Brazil and has high pharmacological potential due to the production of volatile compounds. This study aimed to evaluate the leucocephalus. This effect was accompanied by the increase of Cd, Cu and Zn concentrations in all plant tissues. Volatile compounds content produced by M. leucocephalus was increased only by Zn (86%).Key words: Lamiaceae, metals, relative growth. Cd (15, 30, ), Cu (30, 60, ) e Zn (150, 300, 450 and 600µmol L -1 RESUMO Martianthus leucocephalus é encontrada no semiárido nordestino e possui potencial farmacológico atribuído à produção de compostos voláteis. Este trabalho objetivou avaliar o efeito de doses de