SciELO - Scientific Electronic Library Online

 
vol.89 issue2A new approach to feed frequency studies and protein intake regulation in juvenile pirarucuVitamin E and organic selenium for broilers from 22 to 42 days old: performance and carcass traits author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Anais da Academia Brasileira de Ciências

Print version ISSN 0001-3765On-line version ISSN 1678-2690

Abstract

WANDSCHEER, ALANA C.D. et al. Cytogenotoxicity of rice crop water after application of the tricyclazole fungicide. An. Acad. Bras. Ciênc. [online]. 2017, vol.89, n.2, pp.1251-1258.  Epub May 02, 2017. ISSN 0001-3765.  https://doi.org/10.1590/0001-3765201720150536.

Tricyclazole is currently one of the fungicides recommended for the treatment of diseases in irrigated rice. However, there is relatively little information on its cytotoxic and genotoxic potential. The objective of this study was to evaluate the cytotoxicity and genotoxicity of rice crop water after apllication of the tricyclazole fungicide through the Allium cepa L. test. The rice crop water samplings were collected before and 1, 15 and 30 days after application of the fungicide in rice plant shoots. The Allium cepa roots were placed in contact with the rice crop water to check for possible chromosomal abnormalities and mitotic index of the bioindicators meristematic cells. The data obtained by the Allium cepa test indicates that the application of the tricyclazole fungicide leads to an increase in the genotoxic activity in the rice crop water, through the appearance of chromosomal abnormalities, without, however, causing significant effects on the mitotic index. The major chromosomal alterations observed were anaphasic and telophasic bridges and laggard chromosomes.

Keywords : bioindicator; chromosomal abnormalities; mitotic index; pesticide; irrigated rice.

        · text in English     · English ( pdf )