environmental samplesuncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.uncultured Roseobacter sp.