Soil-borne microorganisms and soil-type affect pyrrolizidine alkaloids in Jacobaea vulgaris

TY - JOUR

T1 - Soil-borne microorganisms and soil-type affect pyrrolizidine alkaloids in Jacobaea vulgaris

AU - Joosten, L.

AU - Mulder, P.P.J.

AU - Klinkhamer, P.G.L.

AU - Van Veen, J.A.

N1 - Reporting year: 2009 Metis note: 4697;CTE; ME file:///L:/Endnotedatabases/NIOOPUB/pdfs/PDFS2009\Joosten_ea_4697.pdf

PY - 2009

Y1 - 2009

N2 - Secondary metabolites like pyrrolizidine alkaloids (PAs) play a crucial part in plant defense. We studied the effects of soil-borne microorganisms and soil-type on pyrrolizidine alkaloids in roots and shoots of Jacobaea vulgaris. We used clones of two genotypes from a dune area (Meijendel), propagated by tissue culture and grown on two sterilized soils and sterilized soils inoculated with 5% of non-sterilized soil of either of the two soil-types. Soil-borne microorganisms and soil-type affected the composition of PAs. By changing the composition rather than the total concentration below and aboveground, plants have a more complex defense strategy than formerly thought. Interestingly, a stronger negative effect on plant growth was found in sterilized soils inoculated with their ‘own’ microbial community suggesting that pathogenic and/or other plant inhibiting microorganisms were adapted to their ‘own’ soil conditions.

AB - Secondary metabolites like pyrrolizidine alkaloids (PAs) play a crucial part in plant defense. We studied the effects of soil-borne microorganisms and soil-type on pyrrolizidine alkaloids in roots and shoots of Jacobaea vulgaris. We used clones of two genotypes from a dune area (Meijendel), propagated by tissue culture and grown on two sterilized soils and sterilized soils inoculated with 5% of non-sterilized soil of either of the two soil-types. Soil-borne microorganisms and soil-type affected the composition of PAs. By changing the composition rather than the total concentration below and aboveground, plants have a more complex defense strategy than formerly thought. Interestingly, a stronger negative effect on plant growth was found in sterilized soils inoculated with their ‘own’ microbial community suggesting that pathogenic and/or other plant inhibiting microorganisms were adapted to their ‘own’ soil conditions.

U2 - 10.1007/s11104-009-9963-7

DO - 10.1007/s11104-009-9963-7

M3 - Article

SN - 0032-079X

VL - 325

SP - 133

EP - 143

JO - Plant and Soil

JF - Plant and Soil

IS - 1-2

ER -