脱落酸可提高陆地植物细胞对静水压力的抵抗力。
Abscisic Acid increases terrestrial plant cell resistance to hydrostatic pressure.
机构信息
Department of Horticulture Science, University of Saskatchewan, Saskatoon, Saskatchewan S7N 0W0.
出版信息
Plant Physiol. 1992 Feb;98(2):745-8. doi: 10.1104/pp.98.2.745.
Abstract
Cells of the terrestrial plant species bromegrass (Bromus inermis L.) are not naturally adapted to withstand the hydrostatic pressures encountered in aquatic environments. However, after treatment with the natural plant growth hormone abscisic acid (75 micromolar), bromegrass cells survived a hydrostatic pressure of 101.3 megapascals, approximating the limits of ocean depth (10,860 m). The increased resistance to hydrostatic pressure from 1 to 7 days of abscisic acid treatment paralleled the induced elevation of cell tolerance to freezing stress.
摘要
陆生植物雀麦（Bromus inermis L.）的细胞自然无法适应水生环境中的静水压力。然而，经过天然植物生长激素脱落酸（75 微摩尔）处理后，雀麦细胞能够承受 101.3 兆帕斯卡的静水压力，接近海洋深度极限（10860 米）。脱落酸处理 1 至 7 天后，细胞对静水压力的抵抗力增强，与细胞对冷冻胁迫的耐受性提高相平行。
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