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Seasonal and spatial variation of reduced sulphur compounds in mistletoes (Viscum album) and the xylem sap of its hosts (Populus × euramericana and Abies alba) by Peter Escher; Monika Eiblmeier; Ilka Hetzger; Heinz Rennenberg is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Seasonal and spatial variation of reduced sulphur compounds in mistletoes (Viscum album) and the xylem sap of its hosts (Populus × euramericana and Abies alba) about?

In the present field study with adult trees inhabited by __Viscum album__, the question was addressed as to whether European mistletoes are able to remove reduced sulphur from the xylem sap of its hosts. For this purpose the reduced sulphur composition and content of the xylem sap of __Viscum album__ and the corresponding hosts __Populus__ × __euramericana__ and __Abies alba__ were analysed. The xylem sap of __Viscum__ was enriched in reduced sulphur compared to the hosts but still reflected the higher reduced sulphur content of __Populus__ compared to __Abies__. Despite similar xylem sap composition of the hosts with glutathione as the dominating thiol, __Viscum__ on __Populus__ contained predominantly cysteine, __Viscum__ on __Abies__ predominantly glutathione in its xylem sap. These findings suggest selective and different removal of reduced sulphur from these hosts. Still the amount of reduced sulphur removed was too small to result in changes of the concentration of thiols in the xylem sap of the hosts that are statistically significant, probably due to the high variability encountered under field conditions. Despite the differences in the reduced sulphur composition and conte

Who reads Seasonal and spatial variation of reduced sulphur compounds in mistletoes (Viscum album) and the xylem sap of its hosts (Populus × euramericana and Abies alba)?

Author

Peter Escher; Monika Eiblmeier; Ilka Hetzger; Heinz Rennenberg

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0031-9317)

Published

2003

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)