NICKEL NUTRITION IN COFFEE PLANT AND ITS RELATIONSHIP WITH NITROGEN METABOLISM AND SENESCENCE

• Grant number: 11/05928-6
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: June 01, 2011
• End date: February 28, 2015
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: José Laércio Favarin
• Grantee: Tiago Tezotto
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated scholarship(s): 11/22245-0 - Coffee cell suspension exposed to nickel, BE.EP.DR

Abstract

Nitrogen is the nutrient required in greatest quantity by the coffee and the second most exported by the plant, being fundamental in the synthesis of various compounds. Usually apply urea in coffee and N from this source is rapidly metabolized and incorporated in amino acids and amides. The assimilation of N is affected by several micronutrients, including nickel (Ni), due to it is a constituent of the enzyme urease, responsible for degradation of urea. Ni deficiency also can lead to nitrate accumulation due to low activity of malate dehydrogenase, which supplies power to the process of reducing nitrate. The understanding of the interaction of Ni with N metabolism and the aging process on the tree is important for the efficient use of nitrogen by plants. Since 2007, the Ni is inserted in the Brazilian fertilizer legislation, however little is known about its action on nitrogen metabolism and in the process of leaf senescence in coffee. Thus, the purpose of this study is to understand whether coffee nutrition Ni contributes to increasing the efficiency of N use and/or delays leaf senescence, as well as to characterize the physiological and biochemical aspects and also recommend its application in the management fertilization of coffee plant.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

LAGO, BRUNO COCCO; FAVARIN, JOSE LAERCIO; MUNHOZ DE ALMEIDA, RODRIGO ESTEVAM; PIEROZAN JUNIOR, CLOVIS; DE OLIVEIRA, SILAS MACIEL; TEZOTTO, TIAGO; DE BORJA REIS, ANDRE FROES; SIEBECKER, MATTHEW G.. Potassium application timing to improve corn K-fertilizer use in the oat-corn sequence: a tracer study for high yielding corn. JOURNAL OF PLANT NUTRITION, v. 46, n. 4, p. 12-pg., 2022-04-15. (12/24226-5, 06/01248-2, 11/05928-6, 13/06515-2)

TEZOTTO, TIAGO; RIBEIRO SOUZA, SARAH CAROLINE; MIHAIL, JEANNE; FAVARIN, JOSE LAERCIO; MAZZAFERA, PAULO; BILYEU, KRISTIN; POLACCO, JOE CARMINE. Deletion of the single UreG urease activation gene in soybean NIL lines: characterization and pleiotropic effects. THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY, v. 28, n. 3, p. 307-320, SEP 2016. (11/22245-0, 11/05928-6, 14/09730-4)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

TEZOTTO, Tiago. Nitrogen metabolism and senescence process in coffee plants exposed to nickel. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.