Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Root Proteomes of Mimosa acutistipula Provide Insights into the Stress Response Mechanisms in Plants Grown in Native Ecosystems and Eastern Amazon's Rehabilitating Minelands

Sidney Vasconcelos do Nascimento
,
Héctor Herrera
ORCID logo ,
Paulo Henrique de Oliveira Costa
,
Felipe Costa Trindade
ORCID logo ,
Isa Rebeca Chagas Da Costa
,
Cecilio Frois Caldeira
ORCID logo ,
Markus Gastauer
,
Silvio Junio Ramos
ORCID logo ,
Guilherme Oliveira
ORCID logo ,
Rafael Borges Da Silva Valadares
* ORCID logo
Version 1 : Received: 16 September 2022 / Approved: 22 September 2022 / Online: 22 September 2022 (13:34:43 CEST)

A peer-reviewed article of this Preprint also exists.

Nascimento, S.V.; Herrera, H.; Costa, P.H.O.; Trindade, F.C.; da Costa, I.R.C.; Caldeira, C.F.; Gastauer, M.; Ramos, S.J.; Oliveira, G.; Valadares, R.B.S. Molecular Mechanisms Underlying Mimosa acutistipula Success in Amazonian Rehabilitating Minelands. Int. J. Environ. Res. Public Health 2022, 19, 14441. Nascimento, S.V.; Herrera, H.; Costa, P.H.O.; Trindade, F.C.; da Costa, I.R.C.; Caldeira, C.F.; Gastauer, M.; Ramos, S.J.; Oliveira, G.; Valadares, R.B.S. Molecular Mechanisms Underlying Mimosa acutistipula Success in Amazonian Rehabilitating Minelands. Int. J. Environ. Res. Public Health 2022, 19, 14441.

Abstract

Mimosa acutistipula is endemic to Brazil and grows in ferruginous outcrops (canga) in Serra dos Carajás, eastern Amazon, where one of the largest iron ore deposits in the world is located. Plants that develop in these ecosystems are subject to severe environmental conditions and must have adaptive mechanisms to grow and thrive in cangas. Mimosa acutistipula is a native species used to restore biodiversity in post-mining areas in canga. Understanding the molecular mechanisms involved in the adaptation of M. acutistipula in canga is essential to deduce the ability of native species to adapt to possible stressors in rehabilitating minelands over time. In this study, the root proteomic profiles of M. acutistipula grown in a native canga ecosystem and rehabilitating minelands were compared to identify essential proteins involved in the adaptation of this species in its native environment and that should enable its establishment in rehabilitating minelands. The results showed differentially abundant proteins, where 436 proteins with significant values (p < 0.05) and fold change ≥ 2 were more abundant in canga and 145 in roots from the rehabilitating minelands. Among them, a representative amount and diversity of proteins were related to responses to water deficit, heat, and responses to metal ions. Other identified proteins are involved in biocontrol activity against phytopathogens and symbiosis. This research provides insights into proteins involved in M. acutistipula responses to environmental stimuli, suggesting critical mechanisms to support the establishment of native canga plants in rehabilitating minelands over time.

Keywords

Abiotic Stress; Amazon; Canga; Iron mining; Mineland Rehabilitation; Proteomics; Symbiosis

Subject

Biology and Life Sciences, Ecology, Evolution, Behavior and Systematics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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