caa a22 4500 477110479 CHVBK 20180405111607.0 cr unu---uuuuu 170330e19960101xx s 000 0 eng 10.1007/BF00011589 doi (NATIONALLICENCE)springer-10.1007/BF00011589 Dynamics of lead accumulation in mycorrhizal and non-mycorrhizal Norway spruce ( Picea abies (L.) Karst.) [Elektronische Daten] [Petra Marschner, Douglas Godbold, Georg Jentschke] Twelve-week-old seedlings of Norway spruce (Picea abies (L.) Karst), non-mycorrhizal or mycorrhizal with Laccaria laccata, Paxillus involutus or Pisolithus tinctorius were exposed to 5 μM Pb for either 32 or 42 days in a quartz sand-nutrient solution system. Ultrathin sections of mycorrhizal and non-mycorrhizal short roots were examined by X-ray microanalysis. After 42 days Pb treatment, the Pb content of the cortex cell walls was lower in the non-mycorrhizal short roots and in the P. involutus mycorrhizae than in the mycorrhizae of L. laccata or P. tinctorius. The Pb content of the cell walls of the hyphal mantle was higher in P. involutus than in L. laccata or P. tinctorius. The short term experiment over 32 days showed that the Pb content of the cortex cell walls strongly increased during the first 16 days in the non-mycorrhizal roots and the L. laccata mycorrhizae, whereas it increased more slowly in the P. involutus mycorrhizae. After 32 days Pb treatment, the Pb content in the cortex cell walls in the P. involutus mycorrhizae was similar to that in the non-mycorrhizal roots. P. involutus also decreased Pb translocation from the roots to the stems. Mycorrhizal infection was not affected by Pb but with P. involutus, the amount of extramatrical mycelium was reduced by 50% on day 32 compared to day 16. The extramatrical mycelium of L. laccata was not reduced by Pb. It is concluded that ectomycorrhizal fungi differ in their effect on Pb accumulation in the roots of Norway spruce. The binding capacity of the extramatrical mycelium seems to be an important factor. Kluwer Academic Publishers, 1996 ectomycorrhizae nationallicence lead nationallicence X-ray microanalysis nationallicence Marschner Petra Forest Ecosystem Research Centre, Forstbotanisches Institut, Universität Göttingen, Büsgenweg 2, D-37077, Göttingen, Germany aut Godbold Douglas Forest Ecosystem Research Centre, Forstbotanisches Institut, Universität Göttingen, Büsgenweg 2, D-37077, Göttingen, Germany aut Jentschke Georg Forest Ecosystem Research Centre, Forstbotanisches Institut, Universität Göttingen, Büsgenweg 2, D-37077, Göttingen, Germany aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 178/2(1996-01-01), 239-245 0032-079X 178:2<239 1996 178 11104 https://doi.org/10.1007/BF00011589 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00011589 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Marschner Petra Forest Ecosystem Research Centre, Forstbotanisches Institut, Universität Göttingen, Büsgenweg 2, D-37077, Göttingen, Germany aut NATIONALLICENCE 700 1- Godbold Douglas Forest Ecosystem Research Centre, Forstbotanisches Institut, Universität Göttingen, Büsgenweg 2, D-37077, Göttingen, Germany aut NATIONALLICENCE 700 1- Jentschke Georg Forest Ecosystem Research Centre, Forstbotanisches Institut, Universität Göttingen, Büsgenweg 2, D-37077, Göttingen, Germany aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl// 178/2(1996-01-01), 239-245 0032-079X 178:2<239 1996 178 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer