منابع مشابه
Protein Synthesis during Endogenous Rhythmic Leaflet Movement in Albizzia
A rhythm was found in protein synthesis accompanying rhythmic leaflet opening and closing in the dark in the plant Albizzia. More protein was synthesized during the opening of the leaflets than during the closing. Furthermore, an inhibitor of protein synthesis, cycloheximide, prevented rhythmic opening of leaflets but had no effect on rhythmic closing. It is suggested that protein synthesis is ...
متن کاملPhytochrome-controlled Nyctinasty in Albizzia julibrissin: IV. Auxin Effects on Leaflet Movement and K Flux.
Indole-3-acetic acid, alpha-naphthylacetic acid, and 2,4-dichlorophenoxyacetic acid (0.001 to 1.0 mm) inhibit the nyctinastic closure of excised Albizzia leaflet pairs; antiauxins and auxin analogs are ineffective, and the auxin effects seem not to be mediated by ethylene. Indoleacetic acid (0.001 to 0.1 mm) also promotes rhythmic opening in the dark, but is ineffective during that phase of rhy...
متن کاملPotassium Flux and Leaf Movement in Samanea saman
Samanea leaflets usually open in white light and fold together when darkened, but also open and dose with a circadian rhythm during prolonged darkness. Leaflet movement results from differential changes in the turgor and shape of motor cells on opposite sides of the pulvinus; extensor cells expand during opening and shrink during closure, while flexor cells shrink during opening and expand duri...
متن کاملPotassium flux ratio in voltage-clamped squid giant axons
The potassium flux ratio across the axolemma of internally perfused, voltage-clamped giant axons of Loligo pealei has been evaluated at various membrane potentials and internal potassium concentrations ([K]i). Four different methods were used: (a) independent measurement of one-way influx and efflux of 42K; (b) simultaneous measurement of net K current (IK) and 42K influx; (c) simultaneous meas...
متن کاملSteroidogenic Effect of Albizzia Lebbek Benth. in Guinea Pigs
Albizzia lebbek a renowned drug of Indian medicine for allergic diseases has been proved to be useful in bronchial asthma and histamine induced bronchospasm in guinea pigs. Mode of action of this drug is suggested through the adrenals as the rise in plasma cortisol is reported by the administration of A. Lebbek both in humanbeings and guinea pigs. The dose effect relationahip has been studied a...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1974
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.54.3.280