INVESTIGADORES
DIAZ Sandra Myrna
artículos
Título:
Effects of arbuscular mycorrhizal colonisation on shoot and root decomposition of different plant species and species mixtures
Autor/es:
URCELAY C; VAIERETTI MV; PEREZ M; DÍAZ SM
Revista:
SOIL BIOLOGY AND BIOCHEMISTRY
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Año: 2011 vol. 43 p. 466 - 468
ISSN:
0038-0717
Resumen:
Abstract
We studied the decomposition of shoot and root tissues of four plant species from central Argentina
belonging to contrasting functional types: a deciduous shrub (Acacia caven), a perennial forb (Hyptis
mutabilis), an annual forb (Bidens pilosa) and a tussock grass (Jarava pseudoichu). They were grown from
seed in a greenhouse in isolation or in 2- or 4-species mixtures, with and without arbuscular mycorrhizal
fungi (AMF), and then placed to decompose under natural conditions in the field. AMF significantly
enhanced decomposition of shoots, but not that of roots, independently of species identity and speciesmixture
composition. Our results suggest that AMF may be significantly affecting ecosystem functioning
through the observed plant-mediated effects on decompositionAcacia caven), a perennial forb (Hyptis
mutabilis), an annual forb (Bidens pilosa) and a tussock grass (Jarava pseudoichu). They were grown from
seed in a greenhouse in isolation or in 2- or 4-species mixtures, with and without arbuscular mycorrhizal
fungi (AMF), and then placed to decompose under natural conditions in the field. AMF significantly
enhanced decomposition of shoots, but not that of roots, independently of species identity and speciesmixture
composition. Our results suggest that AMF may be significantly affecting ecosystem functioning
through the observed plant-mediated effects on decomposition), an annual forb (Bidens pilosa) and a tussock grass (Jarava pseudoichu). They were grown from
seed in a greenhouse in isolation or in 2- or 4-species mixtures, with and without arbuscular mycorrhizal
fungi (AMF), and then placed to decompose under natural conditions in the field. AMF significantly
enhanced decomposition of shoots, but not that of roots, independently of species identity and speciesmixture
composition. Our results suggest that AMF may be significantly affecting ecosystem functioning
through the observed plant-mediated effects on decompositionfield. AMF significantly
enhanced decomposition of shoots, but not that of roots, independently of species identity and speciesmixture
composition. Our results suggest that AMF may be significantly affecting ecosystem functioning
through the observed plant-mediated effects on decompositionficantly affecting ecosystem functioning
through the observed plant-mediated effects on decomposition