The effects of metal ions on the root surface phosphatase activity of grasses differing in tolerance to serpentine soil

✍ Scribed by I. R. Willett; T. Batey

• Publisher: Springer
• Year: 1977
• Tongue: English
• Weight: 354 KB
• Volume: 48
• Category: Article
• ISSN: 0032-079X
• DOI: 10.1007/bf00015169

✦ Synopsis

Six grass species w h i c h differed in ability to grow on serpentine soils were assayed for root surface acid p h o s p h a t a s e a c t i v i t y in solutions of Ca, Mg, Ni, Cr III, Cr VI, a n d Zn a t various c o n c e n t r a t i o n s . T h e root surface p h o s p h atases of relatively s e r p e n t i n e t o l e r a n t species (Festuca rubra, Festuca pratensis a n d Holcus lanatus) were u n a f f e c t e d by the e x t e r n a l Ca c o n c e n t r a t i o n whereas Ca increased t h e a c t i v i t y of root surface p h o s p h a t a s e in species relatively i n t o l e r a n t to s e r p e n t i n e soil conditions (Phleum pratense vars Scots a n d $51 a n d Lolium perenne). T h e r e were no differences s h o w n b e t w e e n a t o l e r a n t a n d a n i n t o l e r a n t grass in t h e i r responses to Mg, Ni, Cr III, Cr VI or Zn.