草甘膦对玉米和棉花组织中生长素运输的影响。
Effect of glyphosate on auxin transport in corn and cotton tissues.
机构信息
United States Department of Agriculture, Science and Education Administration, Agricultural Research, Department of Range Science, Texas A&M University, College Station, Texas 77843.
出版信息
Plant Physiol. 1979 May;63(5):882-6. doi: 10.1104/pp.63.5.882.
Basipetal auxin transport in 6-day-old dark-grown corn coleoptiles was severely inhibited by increasing levels of glyphosate applied during the transport period.The velocity of basipetal transport of [(14)C]indoleacetic acid in hypocotyls from 7-day-old cotton seedlings was significantly reduced when sublethal doses of glyphosate [N-(phosphonomethyl)glycine] were applied to the cotyledonary leaves 24 hours before transport measurement. Simultaneous application of glyphosate and indoleacetic acid during transport measurement had no effect on basipetal transport in cotton hypocotyl sections.Slowing of transport was inversely proportional to the dosage applied to both species.
在暗培养的 6 天大的玉米苗中，向运输期内施加的草甘膦浓度增加会严重抑制向基生长素运输。在向运输测量开始前 24 小时，将亚致死剂量的草甘膦（N-（膦酸甲基）甘氨酸）施用于子叶，会显著降低来自 7 天大的棉花幼苗下胚轴中[(14)C]吲哚乙酸的向基运输速度。在运输测量过程中同时施加草甘膦和吲哚乙酸对棉花下胚轴段的向基运输没有影响。运输速度的减缓与两种植物施加的剂量成反比。
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