A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.
WHAT DOES PHOTOTROPISM MEAN IN ENGLISH?
Phototropism is the growth of organisms in response to light. It is most often observed in plants, but can also occur in other organisms such as fungi. The growth or movement of a plant part in response to a source of light. The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs. This causes the plant to have elongated cells on the farthest side from the light. Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism. Most plant shoots exhibit positive phototropism, and rearrange their chloroplasts in the leaves to maximize photosynthetic energy and promote growth. Roots usually exhibit negative phototropism, although gravitropism may play a larger role in root behavior and growth. Some vine shoot tips exhibit negative phototropism, which allows them to grow towards dark, solid objects and climb them. The combination of phototropism and gravitropism allow plants to grow in the correct direction.
Definition of phototropism in the English dictionary
The definition of phototropism in the dictionary is the growth response of plant parts to the stimulus of light, producing a bending towards the light source. Other definition of phototropism is the response of animals to light; phototaxis.
The translations of phototropism from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «phototropism» in English.
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «phototropism».
FREQUENCY OF USE OF THE TERM «PHOTOTROPISM» OVER TIME
The graph expresses the annual evolution of the frequency of use of the word «phototropism» during the past 500 years. Its implementation is based on analysing how often the term «phototropism» appears in digitalised printed sources in English between the year 1500 and the present day.
Examples of use in the English literature, quotes and news about phototropism
10 ENGLISH BOOKS RELATING TO «PHOTOTROPISM»
Discover the use of phototropism in the following bibliographical selection. Books relating to phototropism and brief extracts from same to provide context of its use in English literature.
Biology Problem Solver
The coleoptile tip of the oat seedling, for instance, is a non-leaf-bearing structure
which has been used in classical demonstrations of phototropism (the growth
response to light) . Since a stem will bend toward the sun even if it has no leaves,
Research & Education Association Editors, Research and Education Association, 2013
Abstract Phototropism refers to the curvature movements of organs whose
directionality is determined by the direction or uneven distribution of impinging
light. Optimizing the acquisition of light energy in shade, and directing the growth
D.-P. Häder, M. Lebert, 2001
Experiments with Plants
A workbook with 15 experiments with plants.
Photobiology of Higher Plants
The fact that carotenoids in plant cells occur in plastids also seems inconsistent
with a role in phototropism. The flavin molecule riboflavin was a later candidate.
Flavins are also ubiquitous in biological material where they occur as prosthetic ...
Maurice S. McDonald, 2003
Light Sensing in Plants
At high intensity of blue light phototropism is attenuated. This decreased
response is due to the co-action of phototropins and cryptochromes (Whippo and
Hangarter 2003). UV-A, blue, red and far-red light, applied before and/or during
M. Wada, K. Shimazaki, M. Iino, 2007
Natural Plant Growth Inhibitors and Phytohormones
Light and phototropism Whereas the problem of the photoreceptor for
photomorphogenesis may be considered largely solved, it is only being stated for
phototropism. At the same time, for photomorphogenesis the problem of a
hormonal or ...
V. Kefeli, 1978
Signal Transduction in Plants
Potential chromophore(s) for the phototropism photoreceptor The chemical
nature of the chromophore for the phototropism photoreceptor is currently
unknown. Candidate molecules suggested as chromophores for blue light
responses in ...
P. Aducci, 1997
Among the stimuli perceived by fungi are contact (thigmotropism), chemicals (
chemotropism), electrical potentials (galvanotropism), air currents (anemotropism
), light (phototropism), and gravity and centrifugal forces (gravitropism). There are
David H. Griffin, 1996
Plant Hormones and Plant Development
Obviously, positive phototropism and negative geotropism reinforce each other in
the normal shoot. Darwin and other early investigators of phototropism The
extraordinary Charles Darwin made the first big advance in the study of
Phototropism is a growth response that causes a bending toward (positive) or
away from (negative) light. ... are classical, our present concern has to do with
phototropism in relation to the development of fruiting bodies of basidiomycetes.
Philip G. Miles, Shu-Ting Chang, 2004
10 NEWS ITEMS WHICH INCLUDE THE TERM «PHOTOTROPISM»
Find out what the national and international press are talking about and how the term phototropism is used in the context of the following news items.
Track a Plant's Movement
It's called phototropism, and it happens when plants move towards sunlight. ... Plant phototropism can be so extreme that some plants, such as ... «KGOU, Jul 15»
Amy Dixon: Sunflowers just love this weather
Unlike phototropism, which is a growth response, heliotropism is turning or moving toward the sun, not growing toward the sun. The movement ... «Winston-Salem Journal, Jun 15»
overshadowing its neighbours
Called Tropism of Wildflower, the Seoul building takes inspiration from the biological phenomenon of phototropism in plants, whereby they turn ... «Dezeen, Jun 15»
Darwin, Design, and Phototropism
An article in Current Biology on phototropism (plants' attraction to ... Phototropism is a classic example of such an adaptive growth response. «Discovery Institute, May 15»
Felled ancient tree 'resurrects' in Imo
He said: “Since the stump is still attached to the roots the tree simply responded to the natural phenomenon called phototropism.” However ... «Daily Sun, May 15»
GARDENING with ALI MARSHALL: Sunflowers are like Marmite, you …
Geek alert at this point: plant movement towards the sun is known technically as 'phototropism'. As an added bonus, the sunflower has also ... «Torquay Herald Express, Apr 15»
Crop response to length and its role in fertilizer applications
Geotropism: Response to gravity - roots grow down and shoots grow up. Phototropism: Response to light – plants grow (bend) toward light. «Michigan State University Extension, Mar 15»
ACC/AISD name Science Fair winners
Nolan Ryan Junior High student Julia Lenard won first place in Chemistry for her project Phototropism: Effect of Focused Laser Light on Pinto ... «Your Houston News, Feb 15»
Space plants on way back to earth
... in plants and to better understand the cellular signaling mechanisms of phototropism and cellular response of light stimulation involved," Kiss ... «Phys.Org, Dec 14»
Status Report - Source: NASA
... to determine the effects of gravity on cellular signaling mechanisms of phototropism and to investigate cell growth and proliferation responses ... «Space Ref, Dec 14»
« EDUCALINGO. Phototropism [online]. Available <https://educalingo.com/en/dic-en/phototropism>. Sep 2019 ».