Iglesias A, Satter R L
Biological Sciences Group U-42, University of Connecticut, Storrs, Connecticut 06268.
Plant Physiol. 1983 Jun;72(2):570-2. doi: 10.1104/pp.72.2.570.
Homogeneous groups of cells were excised at regular intervals from opposing (extensor and flexor) motor tissue of Samanea saman (Jacq) Merrill maintained in white light for 34 hours. H(+) fluxes between the tissue and bathing solution were then monitored during 30 minutes of darkness. Flux rates in both cell types vary with circadian rhythms. Flexor cells secrete H(+) to the medium during two-thirds of the circadian cycle and take up H(+) during the remainder of the cycle, while extensor cells take up H(+) from the medium during the entire cycle.
从在白光下培养34小时的雨树(Samanea saman (Jacq) Merrill)相对的(伸肌和屈肌)运动组织中,每隔一定时间切除均匀的细胞群。然后在30分钟的黑暗期间监测组织与浸泡溶液之间的H(+)通量。两种细胞类型中的通量率都随昼夜节律而变化。屈肌细胞在昼夜周期的三分之二时间内向培养基分泌H(+),在周期的其余时间吸收H(+),而伸肌细胞在整个周期中从培养基中吸收H(+)。