Study on Amino Acids content in leaf of evergreen type, Mascarenegrass (Zoysia tenuifolia, selected species in Utsunomiya University) in winter season

Abstract

It is known that mascarenegrass has a less cold resistant compare to Japanese lawngrass (Z. japonica) and manilagrass (Z. matrella) . The evergreen type of mascarenegrass (Z. tenuifolia) from Okinawa Pref. was selected in Utsunomiya University, Japan. Amino acids content in leaf of the mascarenegrass grown outdoor (selected type) in winter season were measered, and compared with that of the plant grown in greenhouse. It was found that proline content among several amino acids quantified was increased remarkably in selected type. From the circumstances of mascarenegrass grown in warm region in Japan, it seems that proline synthesis and accumulatoin abilities of this plant were acquired for low temperature stress as in the case of salt and dry tolerance function.