Biological nitrification inhibition by root exudates of native species, Hibiscus splendens and Solanum echinatum.

ABSTRACT: Australian native species grow competitively in nutrient limited environments, particularly in nitrogen (N) limited soils; however, the mechanism that enables this is poorly understood. Biological nitrification inhibition (BNI), which is the release of root exudates into the plant rhizosphere to inhibit the nitrification process, is a hypothesized adaptive mechanism for maximizing N uptake. To date, few studies have investigated the temporal pattern and components of root exudates by Australian native plant species for BNI. This study examined root exudates from two Australian native species, Hibiscus splendens and Solanum echinatum, and contrasted with exudates of Sorghum bicolor, a plant widely demonstrated to exhibit BNI capacity. Root exudates were collected from plants at two, four, a

SUBMITTER: Janke CK 

PROVIDER: S-EPMC6014310 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature