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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.)

Physiological, anatomical and ultrastructural effects of aluminum onStyrax camporum, a native Cerrado woody species

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Author(s):
Bressan, Anna C. G. [1] ; Silva, Giselle S. [1] ; Banhos, Otavia F. A. A. [1] ; Tanaka, Francisco A. O. [2] ; Habermann, Gustavo [3]
Total Authors: 5
Affiliation:
[1] Univ Estadual Paulista, Programa Posgrad Ciencias Biol Biol Vegetal, Inst Biociencias, Dept Biodiversidade, UNESP, Ave 24-A, 1515, BR-13506900 Rio Claro, SP - Brazil
[2] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Dept Fitopatol & Nematol, ESALQ USP, Ave Padua Dias, 11, BR-13418900 Piracicaba, SP - Brazil
[3] Univ Estadual Paulista, UNESP, Inst Biociencias, Dept Biodiversidade, Ave 24-A, 1515, BR-13506900 Rio Claro, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF PLANT RESEARCH; v. 133, n. 5, p. 625-637, SEP 2020.
Web of Science Citations: 2
Abstract

Styrax camporumPohl. (Styracaceae) is a woody species that grows on acidic soils from the Brazilian savanna with high aluminum (Al) saturation (m% > 50%), where it accumulates similar to 1500 mg Al per kg dry leaves. Using nutrient solution, a previous study showed that 1480 mu M Al causes toxicity symptoms, which raises the question whether less than 1480 mu M Al could cause beneficial effects on this species. Here, we checked possible altered gas exchange rates, damage to organelles in root tips and the association between Al exposure and mitochondria occurrence in cells of root tips, once organic acids from Krebs cycle exuded by the roots of this species when exposed to Al have been recently evidenced. Five-month-old plants were grown in nutrient solution with 0, 740 and 1480 mu M Al for 90 days. Plants exposed to 1480 mu M Al showed less developed root system, reduced plant height and low gas exchange rates in relation to those exposed to 0 and 740 mu M Al, confirming that 1480 mu M Al is toxic toS. camporum. However, plants exposed to 0 and 740 mu M Al had similar number of leaves, plant height, root biomass, root length, total plant biomass and gas exchange rates, indicating that no beneficial effects from 740 mu M Al could be noted on this species. In plants exposed to 0 and 740 mu M Al, mitochondria were noted at the root tip, while at 1480 mu M Al these organelles were not evident due to the conspicuous vacuolation of root cells.S. camporumshows limited tolerance to Al in nutrient solution. In addition, this species is not dependent on Al to grow and develop because the plants grew well under 0 and 740 mu M Al. (AU)

FAPESP's process: 14/14386-0 - Indirect reference to the physiological effects of Al through microscopy techniques in Cerrado native species
Grantee:Anna Carolina Gressler Bressan
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 18/25658-2 - Aluminum interference in leaf hydration in citrus limonia and in photosynthetic performance of Vochysia tucanorum
Grantee:Giselle Schwab Silva
Support Opportunities: Scholarships in Brazil - Doctorate