[Brief history of the Spanish Society of Microbiology. VI. From 1991 to 1995].

In this sixth and final chapter of the brief history of the Spanish Society for Microbiology (SEM), the major activities carried out from 1991 to 1995 are described. During that period, the 14th and 15th SEM National Congresses took place in Saragossa (1993) and Madrid (1995), respectively. The 1995 Congress was also the occasion to celebrate the fiftieth anniversary of the SEM. During that period, three new Specialized Groups were created: Molecular Microbiology. Aquatic Microbiology, and Protozoology. All Specialized Groups held their own meetings. Courses on the introduction to research in microbiology, for undergraduate students, continued, as well as the Awards of the SEM for young researchers. During that period César Nombela was elected FEMS President, and Fernando Laborda was elected President of the Biodeterioration Society. The photographs of the Presidents and Secretaries of the SEM since its foundation until 1995 are included.