Elemental composition in vesicles of an arbuscular mycorrhizal fungus, as revealed by PIXE analysis.

TY - JOUR

T1 - Elemental composition in vesicles of an arbuscular mycorrhizal fungus, as revealed by PIXE analysis.

AU - Olsson, Pål Axel

AU - Hammer, Edith

AU - Pallon, Jan

AU - van Aarle, Ingrid

AU - Wallander, Håkan

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: MEMEG (432112240), Nuclear Physics (Faculty of Technology) (011013007), Department of Biology (000016100)

PY - 2011

Y1 - 2011

N2 - We investigated element accumulation in vesicles of the arbuscular mycorrhizal (AM) fungus Glomus intraradices, extracted from the roots of inoculated leek plants. The elemental composition (elements heavier than Mg) was quantified using particle-induced X-ray emission (PIXE), in combination with scanning transmission ion microscopy (STIM). In vesicles, P was the most abundant of the elements analysed, followed by Ca, S, Si and K. We analysed 12 vesicles from two root systems and found that the variation between vesicles was particularly high for P and Si. The P content related positively to Si, Zn and K, while its relation to Cl fitted to a negative power function. Vesicle transects showed that P and K were present in central parts, while Ca was present mainly near the vesicle surfaces. The results showed that P is an important part (0.5% of the dry weight) of the vesicle content and that the distribution of some elements, within mycelia, may be strongly correlated.

AB - We investigated element accumulation in vesicles of the arbuscular mycorrhizal (AM) fungus Glomus intraradices, extracted from the roots of inoculated leek plants. The elemental composition (elements heavier than Mg) was quantified using particle-induced X-ray emission (PIXE), in combination with scanning transmission ion microscopy (STIM). In vesicles, P was the most abundant of the elements analysed, followed by Ca, S, Si and K. We analysed 12 vesicles from two root systems and found that the variation between vesicles was particularly high for P and Si. The P content related positively to Si, Zn and K, while its relation to Cl fitted to a negative power function. Vesicle transects showed that P and K were present in central parts, while Ca was present mainly near the vesicle surfaces. The results showed that P is an important part (0.5% of the dry weight) of the vesicle content and that the distribution of some elements, within mycelia, may be strongly correlated.

U2 - 10.1016/j.funbio.2011.03.008

DO - 10.1016/j.funbio.2011.03.008

M3 - Article

VL - 115

SP - 643

EP - 648

JO - Fungal Biology

JF - Fungal Biology

SN - 1878-6146

IS - 7

ER -