Abstract
A microcosm is described in which root exudation may be estimated in the presence of microorganisms. Ryegrass seedlings are grown in microcosms in which roots were spatially separated from a microbial inoculant by a Millipore membrane. Seedlings grown in the microcosms were labelled with [C-14]-CO2, and the fate of the label within the plant and rhizosphere was determined. Inoculation of the microcosms with Cladosporium resinae increased net fixation of the [C-14] label compared to plants grown under sterile conditions. Inoculation also increased root exudation. The use of the microcosm was illustrated and its applications discussed.
Original language | English |
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Pages (from-to) | 111-116 |
Number of pages | 6 |
Journal | Plant and Soil |
Volume | 133 |
Issue number | 1 |
Publication status | Published - May 1991 |
Keywords
- LOLIUM-PERENNE
- RHIZOSPHERE
- ROOT EXUDATION
- BACTERIA
- GROWTH
- CARBON