Phytochrome Regulation of Flowering in the Long-Day Plant, Hyoscyamus niger
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چکیده
منابع مشابه
Phytochrome regulation of phytochrome A mRNA levels in the model short-day-plant Pharbitis nil.
The exposure of dark-grown Pharbitis nil seedlings to continuous R induces a rapid decrease in PHYA mRNA abundance with a half-life of about 2 h. A 5 min R pulse also induces this decline, and the effect is partially reversible by subsequent FR irradiation, confirming that the regulation of expression is mediated via the Pfr form of a phytochrome. When de-etiolated seedlings are returned to dar...
متن کاملPhytochrome C plays a major role in the acceleration of wheat flowering under long-day photoperiod.
Phytochromes are dimeric proteins that function as red and far-red light sensors influencing nearly every phase of the plant life cycle. Of the three major phytochrome families found in flowering plants, phytochrome C (PHYC) is the least understood. In Arabidopsis and rice, PHYC is unstable and functionally inactive unless it heterodimerizes with another phytochrome. However, when expressed in ...
متن کاملPhytochrome C Is A Key Factor Controlling Long-Day Flowering in Barley1[W]
Graduate School of Environmental and Life Science, Okayama University, Okayama 700–8530, Japan (H.N., D.I., T.K., Y.A., K.K.); Institute of Plant Science and Resources, Okayama University, Kurashiki 710–0046, Japan (M.I., D.S., K.Tak.); National Institute of Agrobiological Sciences, Tsukuba 305–8602, Japan (H.K., H.H.); and Faculty of Humanities, Hirosaki University, Hirosaki 036–8560, Japan (K...
متن کاملPhytochrome C is a key factor controlling long-day flowering in barley.
The spring-type near isogenic line (NIL) of the winter-type barley (Hordeum vulgare ssp. vulgare) var. Hayakiso 2 (HK2) was developed by introducing VERNALIZATION-H1 (Vrn-H1) for spring growth habit from the spring-type var. Indo Omugi. Contrary to expectations, the spring-type NIL flowered later than winter-type HK2. This phenotypic difference was controlled by a single gene, which cosegregate...
متن کاملRegulation of flowering in the long-day grass Lolium temulentum by gibberellins and the FLOWERING LOCUS T gene.
Seasonal control of flowering often involves leaf sensing of daylength coupled to time measurement and generation and transport of florigenic signals to the shoot apex. We show that transmitted signals in the grass Lolium temulentum may include gibberellins (GAs) and the FLOWERING LOCUS T (FT) gene. Within 2 h of starting a florally inductive long day (LD), expression of a 20-oxidase GA biosynt...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1982
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.70.3.898