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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Diagnosis and recommendation integrated system and nutritional balance index reveal Cd-induced nutritional disorders in Panicum maximum assayed for Cd phytoextraction

Full text
Author(s):
Rabelo, Flavio Henrique Silveira [1] ; Lavres, Jose [2] ; Ramires, Thiago Gentil [3] ; Alleoni, Luis Reynaldo Ferracciu [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr, BR-13418900 Piracicaba - Brazil
[2] Univ Sao Paulo, Ctr Nucl Energy Agr, Piracicaba - Brazil
[3] Fed Technol Univ Parana, Dept Math, Apucarana - Brazil
Total Affiliations: 3
Document type: Journal article
Source: BIOREMEDIATION JOURNAL; v. 24, n. 4, p. 265-282, NOV 5 2020.
Web of Science Citations: 0
Abstract

The identification of nutritional disorders in plants induced by cadmium (Cd), based only on nutrient concentration, can fail and conceal links with biochemical and physiological events. In this study, the diagnosis and recommendation integrated system (DRIS) and nutritional balance index (NBI) were evaluated as auxiliary tools for diagnosing nutritional disorders in two Panicum maximum genotypes (Tanzania and Massai) which have contrasting behaviors for Cd translocation from roots to shoot. The correlation between nutritional disorders and Cd translocation in these plants was also checked. N, P, K, Ca, Mg, S, Cu, Fe, Mn, and Zn concentrations in shoots of both grasses were extracted from studies previously published to form the database and develop DRIS, in which P. maximum cv. Tanzania was exposed to 0, 1, and 2 mmol L-1 of Cd, for eleven days, while P. maximum cv. Massai was exposed to 0, 0.1 and 0.5 mmol L-1 of Cd, for nine days. DRIS and NBI were obtained by calculations from nutrient concentrations in the shoot. Only P, S, and Zn concentrations in the shoot of P. maximum cv. Tanzania and P, K, S, Cu, and Fe in the shoot of P. maximum cv. Massai were Cd-disturbed from the point of view of nutrient concentration. However, DRIS revealed that the concentrations of Fe and Mn in the shoot of P. maximum cv. Tanzania exposed to Cd were considerably higher compared to other nutrients, enabling us to better understand certain biochemical and physiological Cd-induced events which occurred. Moreover, DRIS revealed that the Cd-induced nutritional disorders in the shoot of P. maximum cv. Massai were Cd-level dependent, and NBI confirmed that nutritional Cd-induced disorders in P. maximum increased when Cd translocation from roots to shoot was higher. In conclusion, DRIS and NBI revealed Cd-induced nutritional disorders that had previously been obscure. Therefore, their use as auxiliary tools for diagnosing Cd-induced nutritional disorders is recommended. (AU)

FAPESP's process: 14/18735-0 - Root apoplastic and symplastic 111Cd-uptake, oxidative stress and ultra-structural changes in Panicum maximum plants supplied with sulfur
Grantee:José Lavres Junior
Support Opportunities: Regular Research Grants
FAPESP's process: 15/21562-2 - Synthesis of phytochelatins and expression of genes involved in the control of oxidative stress and in the cadmium detoxification in Panicum maximum Jacq. cv. Tanzania supplied with sulfur
Grantee:Flávio Henrique Silveira Rabêlo
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 12/12894-3 - Sulfur and cadmium combinations related to the morphogenetic, metabolic and productive parameters of tanzania guineagrass
Grantee:Flávio Henrique Silveira Rabêlo
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 17/11299-8 - Cadmium bioavailability in an Oxisol (Typic Hapludox) and its relation with the tolerance of Brachiaria decumbens and Panicum maximum using Noccaea caerulescens as model plant
Grantee:Flávio Henrique Silveira Rabêlo
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 14/16731-7 - Relationship between sulfur and cadmium (111Cd) detoxification mechanisms in Panicum maximum cv. Tanzania
Grantee:Flávio Henrique Silveira Rabêlo
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 12/11859-0 - Sulfur and cadmium combinations related to the morphogenetic, metabolic and productive parameters of Tanzania guineagrass
Grantee:Francisco Antonio Monteiro
Support Opportunities: Regular Research Grants
FAPESP's process: 18/07190-3 - Bacterial communities in the rhizosphere of Brachiaria decumbens, Panicum maximum and Noccaea caerulescens used for cadmium phytoextraction in an Oxisol (Typic Hapludox)
Grantee:Flávio Henrique Silveira Rabêlo
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor