Bachelor of Science in Botany, U. The Philippines, 1953; Master of Science in Botany, Hebrew U. Jerusalem, 1966; Doctor of Philosophy in Biology, Florida State University, 1973.
Research biologist, National Institute Science and Technology, Manila, 1953-1966; laboratory technologist, Florida State University, Tallahassee, 1966-1973; research principal investigator, Florida State University, Tallahassee, since 1973; visiting assistant professor, Florida Agricultural and Mechanical U., Tallahassee, 1976-1987; from assistant professor to professor, Florida Agricultural and Mechanical U., Tallahassee, since 1987. Volunteer lecturer Leon County Pyub. Schools, Tallahassee, since 1993.
Member American Association for the Advancement of Science, American Society Microbiology, Sigma Xi (secretary 1983-1985).
Children: Maria Roseli, Rodolfo.