Rhombohedrally　crystallized　chain-like　LaMnO3　and　its　supported　gold　(xAu/LaMnO3;　x　=　1.4,　3.1,　and　4.9　wt%)　catalysts　have　been　prepared　using　the　poly(ethylene　glycol)-assisted　polymethyl　methacrylate-templating　and　gas　bubble-assisted　polyvinyl　alcohol-protected　reduction　methods,　respectively.　It　is　shown　that　there　were　good　correlations　of　surface　adsorbed　oxygen　species　concentration　and　low-temperature　reducibility　with　catalytic　activity　of　the　samples　for　the　oxidation　of　CO　and　toluene.　Among　the　LaMnO3　and　xAu/LaMnO3　samples,　4.9Au/LaMnO3　performed　the　best,　giving　the　T-50%　and　T-90%　of　61　and　91　degrees　C　for　CO　oxidation,　and　of　201　and　226　degrees　C　for　toluene　combustion,　respectively.　The　apparent　activation　energies　(29-50　and　47-62　kJ/mol)　of　the　chain-like　LaMnO3　and　xAu/LaMnO3　samples　were　much　smaller　than　those　(63　and　97　kJ/mol)　of　the　bulk　LaMnO3　sample　for　the　oxidation　of　CO　and　toluene,　respectively.　We　believe　that　the　higher　surface　area　and　oxygen　adspecies　concentration　and　better　low-temperature　reducibility　as　well　as　the　strong　interaction　between　Au　nanoparticles　and　chain-like　LaMnO3　support　might　account　for　the　high　catalytic　performance　of　4.9Au/LaMnO3.　(C)　2013　Elsevier　B.V.　All　rights　reserved.