Weed Species from Tea Gardens as a Source of Novel Aluminum Hyperaccumulators
Hajiboland, Roghieh (University of Tabriz)
Moradi, Aiuob (Guilan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization)
Kahneh, Ehsan (Tea Research Center, Iran Horticultural Science Research Institute)
Poschenrieder, Charlotte (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Nazari, Fatemeh (University of Tabriz)
Pavlovic, Jelena (University of Belgrade)
Tolrà Pérez, Roser (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Salehi-Lisar, Seyed-Yahya (University of Tabriz)
Nikolic, Miroslav (University of Belgrade)

Date:	2023
Abstract:	Increased availability of toxic Al 3+ is the main constraint limiting plant growth on acid soils. Plants adapted to acid soils, however, tolerate toxic Al 3+, and some can accumulate Al in their aerial parts to a significant degree. Studies on Al-tolerant and Al-accumulating species have mainly focused on the vegetation of acid soils distributed as two global belts in the northern and southern hemispheres, while acid soils formed outside these regions have been largely neglected. The acid soils (pH 3. 4-4. 2) of the tea plantations in the south Caspian region of Northern Iran were surveyed over three seasons at two main locations. Aluminum and other mineral elements (including nutrients) were measured in 499 plant specimens representing 86 species from 43 families. Al accumulation exceeding the criterion for accumulator species (>1000 µg g −1 DW) was found in 36 species belonging to 23 families of herbaceous annual or perennial angiosperms, in addition to three bryophyte species. Besides Al, Fe accumulation (1026-5155 µg g −1 DW) was also observed in the accumulator species that exceeded the critical toxicity concentration, whereas no such accumulation was observed for Mn. The majority of analyzed accumulator plants (64%) were cosmopolitan or pluriregional species, with a considerable rate of Euro-Siberian elements (37%). Our findings, which may contribute to phylogenetic studies of Al accumulators, also suggest suitable accumulator and excluder species for the rehabilitation of acid-eroded soils and introduce new model species for investigating Al accumulation and exclusion mechanisms.
Grants:	Agencia Estatal de Investigación PID2019-104000RB-I00
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Acid soils ; Aluminum accumulation ; Heavy metals ; Iron ; Manganese ; Northern Iran
Published in:	Plants, Vol. 12, Issue 11 (May 2023) , art. 2129, ISSN 2223-7747

DOI: 10.3390/plants12112129
PMID: 37299108

16 p, 2.5 MB

The record appears in these collections:
Articles > Research articles
Articles > Published articles