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Magnetic resonance imaging of sugar beet taproots in soil reveals growth reduction and morphological changes during foliar Cercospora beticola infestation.

Schmittgen S, Metzner R, Van Dusschoten D, Jansen M, Fiorani F, Jahnke S, Rascher U, Schurr U - J. Exp. Bot. (2015)

Bottom Line: However, during this period, the volumetric growth of the taproot had already started to decrease.Additionally, inoculated plants showed a reduction of the increase in width of inner cambial rings while the width of outer rings increased slightly compared with non-inoculated plants.This response partly compensated for the reduced development of inner rings that had a vascular connection with Cercospora-inoculated leaves.

View Article: PubMed Central - PubMed

Affiliation: Forschungszentrum Jülich GmbH, Institut für Bio-und Geowissenschaften, IBG-2: Plant Sciences, Wilhelm-Johnen-Straße, D-52425 Jülich, Germany simone.schmittgen@julumni.fz-juelich.de s.jahnke@fz-juelich.de.

No MeSH data available.


Related in: MedlinePlus

Summed thickness of the inner (1–4) and outer (5–8) cambial rings of the HS (A) and LS (B) genotypes with inoculated (+ C.b.) and non-inoculated (– C.b.) plants (mean ±SE, n=5 plants per treatment) between –14 dpi and 90 dpi, non-invasively measured with MRI. The significant differences between inner and outer cambial rings in the treatments of each genotype during –14 to 89 dpi were analysed by two-way ANOVA, P<0.001. The two dates of inoculation with C. beticola are indicated by grey arrows.
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Figure 4: Summed thickness of the inner (1–4) and outer (5–8) cambial rings of the HS (A) and LS (B) genotypes with inoculated (+ C.b.) and non-inoculated (– C.b.) plants (mean ±SE, n=5 plants per treatment) between –14 dpi and 90 dpi, non-invasively measured with MRI. The significant differences between inner and outer cambial rings in the treatments of each genotype during –14 to 89 dpi were analysed by two-way ANOVA, P<0.001. The two dates of inoculation with C. beticola are indicated by grey arrows.

Mentions: The observable increase of taproot width was higher in HS plants that had ~2-fold thicker cambial rings throughout the whole experiment during –14 dpi to 89 dpi compared with the LS plants. The increase in taproot width started with the inner cambial rings (rings 1–4) followed by the outer rings (rings 5–8). In both genotypes, the inner cambial rings were significantly larger than the outer rings, whereby the width development of cambial rings was similar (two-way ANOVA, P<0.001; Fig. 4). Upon Cercospora infection, no difference between inoculated and non-inoculated plants was found (Fig. 4).


Magnetic resonance imaging of sugar beet taproots in soil reveals growth reduction and morphological changes during foliar Cercospora beticola infestation.

Schmittgen S, Metzner R, Van Dusschoten D, Jansen M, Fiorani F, Jahnke S, Rascher U, Schurr U - J. Exp. Bot. (2015)

Summed thickness of the inner (1–4) and outer (5–8) cambial rings of the HS (A) and LS (B) genotypes with inoculated (+ C.b.) and non-inoculated (– C.b.) plants (mean ±SE, n=5 plants per treatment) between –14 dpi and 90 dpi, non-invasively measured with MRI. The significant differences between inner and outer cambial rings in the treatments of each genotype during –14 to 89 dpi were analysed by two-way ANOVA, P<0.001. The two dates of inoculation with C. beticola are indicated by grey arrows.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4585413&req=5

Figure 4: Summed thickness of the inner (1–4) and outer (5–8) cambial rings of the HS (A) and LS (B) genotypes with inoculated (+ C.b.) and non-inoculated (– C.b.) plants (mean ±SE, n=5 plants per treatment) between –14 dpi and 90 dpi, non-invasively measured with MRI. The significant differences between inner and outer cambial rings in the treatments of each genotype during –14 to 89 dpi were analysed by two-way ANOVA, P<0.001. The two dates of inoculation with C. beticola are indicated by grey arrows.
Mentions: The observable increase of taproot width was higher in HS plants that had ~2-fold thicker cambial rings throughout the whole experiment during –14 dpi to 89 dpi compared with the LS plants. The increase in taproot width started with the inner cambial rings (rings 1–4) followed by the outer rings (rings 5–8). In both genotypes, the inner cambial rings were significantly larger than the outer rings, whereby the width development of cambial rings was similar (two-way ANOVA, P<0.001; Fig. 4). Upon Cercospora infection, no difference between inoculated and non-inoculated plants was found (Fig. 4).

Bottom Line: However, during this period, the volumetric growth of the taproot had already started to decrease.Additionally, inoculated plants showed a reduction of the increase in width of inner cambial rings while the width of outer rings increased slightly compared with non-inoculated plants.This response partly compensated for the reduced development of inner rings that had a vascular connection with Cercospora-inoculated leaves.

View Article: PubMed Central - PubMed

Affiliation: Forschungszentrum Jülich GmbH, Institut für Bio-und Geowissenschaften, IBG-2: Plant Sciences, Wilhelm-Johnen-Straße, D-52425 Jülich, Germany simone.schmittgen@julumni.fz-juelich.de s.jahnke@fz-juelich.de.

No MeSH data available.


Related in: MedlinePlus