Banca de QUALIFICAÇÃO: CRISTIANO TAVARES DRAGO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : CRISTIANO TAVARES DRAGO
DATE: 30/06/2023
TIME: 09:00
LOCAL: Sala 05 - ICA
TITLE:

Use of biochar in response to antioxidant enzymes in seedlings of pau pretinho (Cenostigma tocantinum) submitted to nickel doses

KEY WORDS:

Phytoremediation; Heavy metal; Attenuator; System

PAGES: 35
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUMMARY:

The phytoremediation technique has been used to recover areas contaminated by
different groups, especially heavy metals, through the introduction of plants with
regenerative behavior, the objective of this work was to evaluate the antioxidant
system of Pau-pretinho (Cenostigma tocantinum Ducke) seedlings when subjected to
increasing doses of Nickel (NiCl2), and as a modulator the biochar of açaí seed
(Euterpe oleracea Mart). In this study, the behavior of the antioxidant enzymes
superoxide dismutase (SOD), ascorbate peroxidase (APX), guaiacol peroxidase (G-
POD), catalase (CAT) and membrane integrity in leaves and roots will be evaluated.
The experiment is being conducted in a greenhouse, in an area of the Institute of
Agricultural Sciences (ICA), belonging to the Federal Rural University of the Amazon
- UFRA, campus Belém-PA. The design will be completely randomized (DIC) 4 x 3
and consisting of 5 repetitions. Nickel chloride doses (NiCl2 0, NiCl2 70mg/kg; NiCl2
100mg/kg; NiCl2 130mg/kg) and biochar doses (0%; 3.5%; 7%) using 60 seedlings in
total. As a result, it is expected that the studied species has a phytoremediating
potential in relation to nickel and that the biochar has a modulating effect on the
antioxidant system and promotes greater tolerance to nickel.

BANKING MEMBERS:
Presidente - 2595267 - CANDIDO FERREIRA DE OLIVEIRA NETO
Externa à Instituição - CRISTINE BASTOS DO AMARANTE
Interno - 750.222.302-91 - GLAUCO ANDRÉ DOS SANTOS NOGUEIRA - UFRA
Externa ao Programa - 1315246 - JOZE MELISA NUNES DE FREITAS
Externa à Instituição - LUMA CASTRO DE SOUZA