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Nickel Influences Urease Activity and Calcium Distribution in Tomato Fruits

Full text
Author(s):
Macedo, Fernando Giovannetti ; Montanha, Gabriel Sgarbiero ; Pereira de Carvalho, Hudson Wallace ; de Melo, Wanderley Jose
Total Authors: 4
Document type: Journal article
Source: ACS AGRICULTURAL SCIENCE & TECHNOLOGY; v. 1, n. 1, p. 6-pg., 2021-02-19.
Abstract

In this study, we aimed to shed light on the effects of the Ni-Ca interaction on the activity of the urease enzyme and the incidence of blossom end rot (BER) in tomato (Solanum lycopersicum) fruits. Therefore, Micro-Tom tomato plants were grown under different levels of Ni (0.0 and 1.0 mg dm(-3)) and Ca2+ (0.35 and 0.70 g dm(-3)), both alone and in combination. Increased yields and urease activity, as well as inhibition of the incidence of BER, were observed for tomato fruits grown with Ni, even under low Ca availability (0.35 g dm(-3)). In addition, a microprobe X-ray fluorescence spectroscopy characterization of the distal part of the fruits revealed a sharp decrease in Ca content in the fruits that present BER symptoms. (AU)

FAPESP's process: 20/07721-9 - Time-resolved element mapping and characterization of storage proteins during soybean seeds development: a bottom-up strategy to increase protein content and quality
Grantee:Gabriel Sgarbiero Montanha
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 15/23927-8 - Interaction Ni x Ca in control of blossom-end rot of tomato
Grantee:Fernando Giovannetti de Macedo
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 15/19121-8 - Multi-User Equipment approved in grant 2015/05942-0: micro X-Ray Fluorescence system
Grantee:Hudson Wallace Pereira de Carvalho
Support Opportunities: Multi-user Equipment Program