Linear relationships between shoot magnesium and calcium concentrations among angiosperm species are associated with cell wall chemistry.
Ann Bot
; 122(2): 221-226, 2018 08 01.
Article
em En
| MEDLINE
| ID: mdl-29722830
ABSTRACT
Background:
Linear relationships are commonly observed between shoot magnesium ([Mg]shoot) and shoot calcium ([Ca]shoot) concentrations among angiosperm species growing in the same environment. Scope andConclusions:
This article argues that, in plants that do not exhibit 'luxury' accumulation of Mg or Ca, (1) distinct stoichiometric relationships between [Mg]shoot and [Ca]shoot are exhibited by at least three groups of angiosperm species, namely commelinid monocots, eudicots excluding Caryophyllales, and Caryophyllales species; (2) these relationships are determined by cell wall chemistry and the Mg/Ca mass quotients in their cell walls; (3) differences between species in [Mg]shoot and [Ca]shoot within each group are associated with differences in the cation exchange capacity (CEC) of the cell walls of different species; and (4) Caryophyllales constitutively accumulate more Mg in their vacuoles than other angiosperm species when grown without a supra-sufficient Mg supply.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Parede Celular
/
Cálcio
/
Magnoliopsida
/
Magnésio
Tipo de estudo:
Risk_factors_studies
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article