Root exudates play an important role in microbial colonization of the rhizosphere. An in vitro experiment
was conducted to study the root exudate sugars and production of amino acids of three different rice (Oryza
sativa) genotypes, as well as the influence of these compounds on Rhizobium sp. (Sb16) and Corynebacterium
sp. (Sb26) colonization. Using HPLC, a total of 7 carbohydrate sugars and 16 amino acids were identified
from the Mahsuri, Mayang Segumpal and MR219 rice root exudates. A significant (p