Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Sub-tropical urban environment affecting content and composition of non-structural carbohydrates of Lolium multiflorum ssp italicum cv. Lema

Full text
Author(s):
Sandrin, Carla Zuliani [1] ; Leone Figueiredo-Ribeiro, Rita de Cassia [1] ; Machado de Carvalho, Maria Angela [1] ; Carvalho Delitti, Welington Braz [2] ; Domingos, Marisa [1]
Total Authors: 5
Affiliation:
[1] Inst Bot, BR-01061970 Sao Paulo - Brazil
[2] Univ Sao Paulo, Inst Biociencias, Dept Ecol, BR-05422970 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Environmental Pollution; v. 156, n. 3, p. 915-921, DEC 2008.
Web of Science Citations: 6
Abstract

This study analyzed the relationship between environmental factors, especially air pollution and climatic conditions, and non-structural carbohydrates (NSC) in plants of Lolium multiflorum exposed during 10 consecutive periods of 28 days at a polluted site (Congonhas) and at a reference site in Sao Paulo city (Brazil). After exposure, NSC composition and leaf concentrations of Al, Fe. Cu, Zn, Pb and Cd were measured. The seasonal pattern of NSC accumulation was quite similar in both sites, but plants at Congonhas showed higher concentrations of these compounds, especially fructans of low and medium degree of polymerization. Regression analysis showed that NSC in plants growing at the polluted site were explained by variations on temperature and leaf concentration of Fe (positive effect), as well as relative humidity and particulate material (negative effect). NSC in the standardized grass culture, in addition to heavy metal accumulation, may indicate stressing conditions in a sub-tropical polluted environment. (C) 2008 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 00/06422-4 - Caesalpinia echinata Lam. (Brazil-wood): from seed to wood, a model for studies on tropical Brazilian trees
Grantee:Rita de Cassia Leone Figueiredo Ribeiro
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 05/04139-7 - Carbohydrates of tropical species as modulators of ecophysiological processes and as environmental stress response markers
Grantee:Marcia Regina Braga
Support Opportunities: Research Projects - Thematic Grants