Accession Number : AD0641656

Title :   EXPOSURE OF TRADESCANTIA MICROSPORES TO PERIODIC VIBRATIONS OF 40-100 HERTZ,

Corporate Author : NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA

Personal Author(s) : Knepton,James C. ; Bales,Lynda J.

Report Date : 03 OCT 1966

Pagination or Media Count : 25

Abstract : Slight differences (P<0.05) were found in the number of spherical chromosomal fragments observed in the experimental and control groups of microspores, the greater number being among the experimentals. It was also observed that specimens vibrated for a short period (3 minutes) exhibited larger effects than those vibrated for longer periods of time (15-60 minutes). No significant impairments of the mitotic mechanism or growth disturbances were observed. Further experimentation is indicated in which Tradescantia microspores would be subjected to periodic and random vibrations of higher frequencies (100-2000 Hz) and accelerations (up to 110 g). (Author)

Descriptors :   (*CHROMOSOMES, *SPACE BIOLOGY), (*PLANTS(BOTANY), VIBRATION), ACCELERATION, SPORES, MUTATIONS, MITOSIS, GROWTH(PHYSIOLOGY)

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE