Localization of acid phosphatase activity in the apoplast of pea (Pisum sativum L.) root nodules grown under phosphorus deficiency |
| |
Authors: | Marzena Sujkowska Wojciech Borucki W?adys?aw Golinowski |
| |
Institution: | (1) Faculty of Agriculture and Biology, Department of Botany, Warsaw Agricultural University, Nowoursynowska 159, 02 - 776 Warsaw, Poland |
| |
Abstract: | ACPase activity was localized in the apoplast of pea root nodules under phosphorus deficiency. Pea plants (Pisum sativum L. cv. Sze ciotygodniowy) where inoculated with Rhizobium leguminosarum bv. viciae 248 and were cultured on nitrogen-free medium with phosphate (−N/+P) or phosphate-deficient (−N/−P) one. In comparison with
control nodules, P-deficient nodules showed the increase of ACPase activity in plant cell walls and the infection threads.
The increase in bacterial ACPase activity under P-deficiency may reflect higher demand for inorganic phosphorus that is necessary
for bacteria multiplication within the infection threads. The increase of ACPase activity in nodule apoplast under P stress
may enlarge the availability of phosphate for plant and bacteria. |
| |
Keywords: | Acid phosphatase histochemistry infection thread nodule Pisum sativum phosphorus deficiency |
本文献已被 SpringerLink 等数据库收录! |