Guava flavonoids and the effects of industrial air pollutants

Autor(es)

Furlan, Claudia Maria ^[1] ; Santos, Deborah Y. A. C. ^[1] ; Motta, Lucimar Barbosa ^[1] ; Domingos, Marisa ^[2] ; Salatino, Antonio ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Dept Bot, BR-05422970 Sao Paulo - Brazil

^[2] SMA, Inst Bot, Secao Ecol, BR-01061970 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ATMOSPHERIC POLLUTION RESEARCH; v. 1, n. 1, p. 30-35, JAN 2010.
• Citações Web of Science: 12

Resumo

Saplings of Psidium guajava (guava, Myrtaceae), a tropical tree species, were exposed to industrial air pollutants at Cubatao, the largest industrial complex of Latin America, along two periods, each one comprising one-year: period I, July/2000 - June/2001; period II, December/2000 - November/2001. Saplings were exposed in two experimental sites: Piloes River Valley (PV), reference site, with low contamination by air pollutants; and Mogi River Valley (MV), a site severely affected by pollutants from chemical, fertilizer, ceramic, iron and steel industries. At both sites, the main flavonoids found were guaijaverin, quercitrin and two quercetin diglycosides. No interactions among factors were found as well as no significant differences were found among periods and among sites. However, total foliar flavonoid amounts showed the tendency of decrease after 12 months of experimentation. Cubatao industrial air pollution, with high concentrations of NO2, SO2 and particulate matter, plus climatic conditions of the initial months of exposure seem that does not influence flavonoid composition and quantities. (C) Author(s) 2010. This work is distributed under the Creative Commons Attribution 3.0 License. (AU)

• Processo FAPESP: 99/06971-9 - Composicao quimica de individuos jovens de tibouchina pulchra e psidium guajava expostas a poluicao atmosferica de cubatao, sp.
• Beneficiário: Cláudia Maria Furlan
• Modalidade de apoio: Bolsas no Brasil - Doutorado