Ozone sensitivity of Currant tomato (Lycopersicon pimpinellifolium), a potential bioindicator species
Articolo
Data di Pubblicazione:
2006
Citazione:
Ozone sensitivity of Currant tomato (Lycopersicon pimpinellifolium), a potential bioindicator species / M. Iriti, L. Belli, C. Nali, G. Lorenzini, G. Gerosa, F. Faoro. - In: ENVIRONMENTAL POLLUTION. - ISSN 0269-7491. - 141:2(2006), pp. 275-282.
Abstract:
The wild tomato species Lycopersicon pimpinellifolium (currant tomato) was exposed to different O 3 concentration, both in controlled environment fumigation facilities and in open-top chambers, to assess its sensitivity and to verify its potential as a bioindicator plant. Plants appeared particularly sensitive to O 3 at an early stage of growth, responding with typical chlorotic spots within 24 h after exposure to a single pulse of 50 ppb for 3 h, and differentiating peculiar symptoms, such as reddish necrotic stipples, bronzing and extensive necrosis, depending on O 3 concentration. Histo-cytochemical investigations with 3,3′-diaminobenzidine, to localize H 2O 2, and Evans blue, to detect dead cells, suggested that currant tomato sensitivity to O 3 could be due to a deficiency in the anti-oxidant pools. The combination of these stainings proved to be useful, either to predict visible symptoms, early before their appearance, and to validate leaf ozone injury.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Bioindicator; Currant tomato; Lycopersicon pimpinellifolium; Ozone
Elenco autori:
M. Iriti, L. Belli, C. Nali, G. Lorenzini, G. Gerosa, F. Faoro
Link alla scheda completa: