Chronobiology of Aging in Albizzia julibrissin
نویسندگان
چکیده
منابع مشابه
Chronobiology of Aging in Albizzia julibrissin: I. An Automated, Computerized System for Monitoring Leaflet Movement; The Rhythm in Constant Darkness.
We are using leaflet movements in Albizzia julibrissin as a model system for investigating the chronobiology of aging. To monitor leaflet movements during long dark periods with adequate temporal and spatial resolution, we designed an automated, computerized photoelectric monitoring system. Each of 12 leaflet pairs was positioned in an individual light-proof container, with one leaflet immobili...
متن کاملPulvini as the Photoreceptors in the Phytochrome Effect on Nyctinasty in Albizzia julibrissin.
The fact that far-red pretreatment slows the closing response of Albizzia julibrissin pinnules to darkness was used to locate the photoreceptor region for the role of phytochrome in nyctinasty, and to determine whether the effect is localized or translocated. Illumination of pinnule tissue alone induced no response, while illumination of an area as narrow as 1 mm, including only the tertiary pu...
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 کاملChronobiology of Aging: A Mini-Review
Aging is generally associated with weakening of the circadian system. The circadian amplitude is reduced and the circadian acrophase becomes more labile, tending to occur earlier with advancing age. As originally noted by Franz Halberg, similar features are observed in the experimental laboratory after bilateral lesioning of the suprachiasmatic nuclei, suggesting the involvement of clock genes ...
متن کاملChronobiology of Aging: A Mini-Review.
Aging is generally associated with weakening of the circadian system. The circadian amplitude is reduced and the circadian acrophase becomes more labile, tending to occur earlier with advancing age. As originally noted by Franz Halberg, similar features are observed in the experimental laboratory after bilateral lesioning of the suprachiasmatic nuclei, suggesting the involvement of clock genes ...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1984
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.76.4.858