• warning: mysql_connect() [function.mysql-connect]: Lost connection to MySQL server at 'reading initial communication packet', system error: 146 in /export/data/ccg-Web4all/includes/Connections/siaSearch.php on line 7.
  • user error: in /export/data/ccg-Web4all/includes/Connections/siaSearch.php on line 7.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/Connections/lib.php on line 116.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND per.estatusUsuario = '1'' at line 8 in /export/data/ccg-Web4all/includes/getStaff.php on line 103.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 107.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND cej.descripcion LIKE 'responsable' AND cej.idEstructuraJerarquica IN ' at line 14 in /export/data/ccg-Web4all/includes/getStaff.php on line 149.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 151.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 16 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 16 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 13 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 13 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 13 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 13 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 16 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 17 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 17 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.
  • user error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND p.idPersona NOT IN (0) ORDER BY cco.identificador ASC,' at line 13 in /export/data/ccg-Web4all/includes/getStaff.php on line 221.
  • warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /export/data/ccg-Web4all/includes/getStaff.php on line 223.

Grupo de Microbiología Ambiental y Simbiótica

Investigador Responsable: Esperanza Martínez-Romero, Ph.D.

How it emerged

Phaseolus vulgaris (bean)was chosen as the model to study symbiotic nitrogen fixation at CIFN. Being native to Mexico , bean offered a large diversity of bacterial symbionts and for this, biodiversity studies were undertaken to characterize them. Over the years these studies have extended to cover other beneficial bacteria associated with different plants of agronomic or forestry importance.