Abstract
| Original language | English |
|---|---|
| Title of host publication | IOBC-WPRS Bulletin |
| Subtitle of host publication | Proceedings of the meeting at Dijon (France): Multitrophic Interactions in Soil |
| Editors | Christian Steinberg, Véronique Edel-Hermann, Hanna Friberg, Claude Alabouvette, Arno Tronsmo |
| Publisher | IOBC-WPRS |
| Pages | 109-112 |
| Number of pages | 4 |
| ISBN (Print) | 9789290672166 |
| State | Published - 2009 |
| Event | IOBC Conference Working Group - Dijon, France |
Other
| Other | IOBC Conference Working Group |
|---|---|
| Country | France |
| City | Dijon |
| Period | 24/06/07 → 27/06/07 |
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Implications of root spatial relationships in young wheat obtained from CT-scanning for an invasion by fungal pathogens. / Kleczkowski, Adam; Bailey, Douglas J.; Otten, Wilfred; Grose, Margaret; Gilligan, Christopher A.
IOBC-WPRS Bulletin: Proceedings of the meeting at Dijon (France): Multitrophic Interactions in Soil. ed. / Christian Steinberg; Véronique Edel-Hermann; Hanna Friberg; Claude Alabouvette; Arno Tronsmo. IOBC-WPRS, 2009. p. 109-112.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - CHAP
T1 - Implications of root spatial relationships in young wheat obtained from CT-scanning for an invasion by fungal pathogens
AU - Kleczkowski,Adam
AU - Bailey,Douglas J.
AU - Otten,Wilfred
AU - Grose,Margaret
AU - Gilligan,Christopher A.
PY - 2009
Y1 - 2009
N2 - We analyse the way in which spatial arrangement of roots of plants provides a landscape for spread of soil microorganisms. We use a pathozone concept to characterise the behaviour at the individual root level, whereas percolation theory is used to scale-up to the population of roots. Sectional images of living wheat roots were obtained non-destructively by whole-body computed tomography X-ray scanning (X-ray CT). The data were subsequently interpreted in the light of a potential for spread of a fungal pathogen, initiated from a soil propagule and subsequently realized through a root-to-root transmission. We show that realistic root systems can support very different potential for microorganisms spread, with rapid switches from non-invasive to invasive behaviour. The switch can be controlled by time or nutrition (increase in root density resulting in invasion) or properties of the pathogen or interactions with other microorganisms (increase in pathozone width resulting in invasion). There is a substantial variability among plants so that the depth of a zone of potential spread can significantly differ even for plants growing under very similar conditions.
AB - We analyse the way in which spatial arrangement of roots of plants provides a landscape for spread of soil microorganisms. We use a pathozone concept to characterise the behaviour at the individual root level, whereas percolation theory is used to scale-up to the population of roots. Sectional images of living wheat roots were obtained non-destructively by whole-body computed tomography X-ray scanning (X-ray CT). The data were subsequently interpreted in the light of a potential for spread of a fungal pathogen, initiated from a soil propagule and subsequently realized through a root-to-root transmission. We show that realistic root systems can support very different potential for microorganisms spread, with rapid switches from non-invasive to invasive behaviour. The switch can be controlled by time or nutrition (increase in root density resulting in invasion) or properties of the pathogen or interactions with other microorganisms (increase in pathozone width resulting in invasion). There is a substantial variability among plants so that the depth of a zone of potential spread can significantly differ even for plants growing under very similar conditions.
M3 - Conference contribution
SN - 9789290672166
SP - 109
EP - 112
BT - IOBC-WPRS Bulletin
PB - IOBC-WPRS
ER -