QUÉ SIGNIFICA PHYTOCHROME EN INGLÉS
Fitocromo
Phytochrome es un fotorreceptor, un pigmento que las plantas usan para detectar la luz. Es sensible a la luz en la región roja y roja del espectro visible. Muchas plantas con flores lo usan para regular el tiempo de floración basado en la duración del día y la noche y para establecer ritmos circadianos. También regula otras respuestas, incluyendo la germinación de las semillas, el alargamiento de las plántulas, el tamaño, la forma y el número de hojas, la síntesis de la clorofila y el enderezamiento del gancho epicótilo o hipocótilo de las plántulas de dicotiledóneas. Se encuentra en las hojas de la mayoría de las plantas. Bioquímicamente, el fitocromo es una proteína con un cromóforo bilin. El fitocromo se ha encontrado en la mayoría de las plantas incluyendo todas las plantas superiores; Se han encontrado moléculas muy similares en varias bacterias. Un fragmento de un fitocromo bacteriano ahora tiene una estructura tridimensional resuelta de la proteína. Otros fotorreceptores vegetales incluyen criptocromos y fototropinas, que son sensibles a la luz en las regiones azul y ultravioleta del espectro.
definición de phytochrome en el diccionario inglés
La definición de fitocromo en el diccionario es un pigmento azul verdoso que existe en dos formas intercambiables, presentes en la mayoría de las plantas, que interviene en muchos procesos dependientes de la luz, como el fotoperiodo y el reverdecimiento de las hojas.
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10 LIBROS DEL INGLÉS RELACIONADOS CON «PHYTOCHROME»
Descubre el uso de
phytochrome en la siguiente selección bibliográfica. Libros relacionados con
phytochrome y pequeños extractos de los mismos para contextualizar su uso en la literatura.
1
Pigment of the Imagination: A History of
Phytochrome Research
The book begins with work that led to the discovery of phytochrome and ends with the latest findings in gene regulation and expression. The phytochrome story provides a paradigm for the process of scientific discovery.
2
Early Events in
Phytochrome Signaling in Arabidopsis
Lastly, we have identified a novel zinc knuckle/PLUS3 domain protein that directly regulates expression of key growth genes in a time-of-day fashion.
Brian Timothy Burger,
2008
3
The Encyclopedia of Seeds: Science, Technology and Uses
In such seeds phytochrome, therefore, must be maintained in the active Pfr form
in the dry seed ready to promote germination following imbibition. Seeds
collected from plants grown in a low R:FR ratio, such as occurs under canopy
shade, ...
J. Derek Bewley, Michael Black, Peter Halmer,
2006
4
An Investigation of Transgene-induced Silencing of ...
This work reports the isolation of several lines displaying phytochrome A (PHYA, ATIG09570) silencing upon transformation with the 68LF transgene construct, which possesses large stretches of PHYA homology.
Scott James Nicholson,
2007
5
Photomorphogenesis in Plants and Bacteria: Function and ...
Chapter. 7. PHYTOCHROME. GENES. IN. HIGHER. PLANTS: STRUCTURE,.
EXPRESSION,. AND. EVOLUTION. Robert A. Sharrock1 and Sarah Mathews2 '
Montana State University, Bozeman, Montana 59717, USA (e-mail: ...
Eberhard Schc$fer, Ferenc Nagy,
2006
6
Photomorphogenesis in Plants
Grimm R., Eckerskorn C., Lottspeich F., Zenger C. and Rudiger W (1988)
Sequence analysis of proteolytic fragments of 124-kilodalton phytochrome from
etiolated Avena sativa L.: conclusions on the conformation of the native protein.
Richard E. Kendrick, G. H. M. Kronenberg,
1994
7
Phytochrome properties and biological action
This volume presents a comprehensive picture of recent developments in our understanding of the plant photoreceptor phytochrome and how it regulates plant development.
Brian Thomas, Christopher B. Johnson, North Atlantic Treaty Organization. Scientific Affairs Division,
1991
8
Plant Physiological Ecology
These effects are mediated by the phytochrome system and differ from those
thatresultfromchanges inthetotallevelofirradiance received by theplants. Itis
interestingthat a leaf from a tobacco plant (Nicotiana tabacum) that is induced to
flower ...
Hans Lambers, F Stuart Chapin III, Thijs L. Pons,
2008
9
Photoperiodism in Plants
Brian Thomas, Daphne Vince-Prue. al., 1991) are the products of the phyB and
phyC genes. The term 'type I phytochrome' will be used here specifically to
denote the phytochrome which is the predominant form in etiolated tissues and
when ...
Brian Thomas, Daphne Vince-Prue,
1996
10
Photobiology: The Science and Its Applications
(c) Phosphorylation of degraded large (1 14 IcDa) phytochrome by the purified
phytochrome preparation. The phosphorylation of large phytochrome by the
copurified kinase in the phytochrome preparation is shown in Fig. 4. A
comparison of ...
10 NOTICIAS EN LAS QUE SE INCLUYE EL TÉRMINO «PHYTOCHROME»
Conoce de qué se habla en los medios de comunicación nacionales e internacionales y cómo se emplea el término
phytochrome en el contexto de las siguientes noticias.
Early Harvest Summer Garden
Short-day plants produce a chemical called phytochrome, which has two versions (Pfr, Pr) that are switched back and forth by two spectrums of ... «CULTURE Magazine, Jul 15»
IU faculty named science fellows
Looking into phytochromes drove Kehoe to want to find a microbial phytochrome, which he did. Since then Kehoe and his lab have worked to ... «Indiana Daily Student, May 15»
Staffordshire Wildlife Trust speaker on how plants tell the time
A pigment called phytochrome, which exists in two forms, is the clock. In sunlight it immediately changes to one form while in darkness it only ... «Leek Post & Times, Abr 15»
New research shows how your crop gets a sneak peek at weeds
“We hypothesized that the changes in red:far-red (light) reflected from above-ground weeds would be detected by (corn) seed phytochrome ... «Country Guide, Mar 15»
LED technology serves rapidly growing horticultural market …
New research, however, has demonstrated that the combination of 660- and 730-nm light can impact the phytochrome photoreceptor in plants. «LEDs Magazine, Mar 15»
Vernal Equinox is officially here - what it means
Plants go though a similar phase in late summer as the days gradually shorten, using a pigment called phytochrome in their leaves. «Science Recorder, Mar 15»
Analysis tracks origins of algal light sensors to a shared ancestor …
They also found that the Micromonas phytochrome was tuned to the marine environment – detecting light wavelengths that are more available ... «Phys.Org, Oct 14»
How the signal from light triggers biological action in bacteria
In the bacterial species Deinococcus radiodurans, a red/far-red-light absorbing phytochrome controls the production of light-protective ... «Phys.Org, Sep 14»
Grow-in-the-Dark Plants Could Spark the Next Green Revolution
And it might start with the phytochrome — a crucial light-sensing molecule that tells plants when to germinate, grow, make food, flower and age. «OZY, Sep 14»
Geneticists Are Hacking Plants So They Can Grow in the Shade
That the manipulation of this molecule is of great interest to botanists should come as no surprise, and the phytochrome protein was first ... «Motherboard, Ago 14»