10 ENGLISH BOOKS RELATING TO «PHOTONASTIC»
Discover the use of
photonastic in the following bibliographical selection. Books relating to
photonastic and brief extracts from same to provide context of its use in English literature.
1
Plant Tropisms: And Other Growth Movements
There are many forms of photonastic response. For example, in the shade plant
wood sorrel (Oxalis acetosella), the individual leaflets fold protectively inwards
along the petiole axis in high light intensities. This type of photonastic avoidance
...
2
Modern Plant Physiology
During day, flowers ofNicotiana and Oenothera remain closed, while, during
night, they remain open. Photonastic movement is shown in Figs 23.5 and 23.6.
Thermonastic movements: Such movements are stimulated by temperature. At
high ...
Photonastic unfolding is probably controlled by BAP and takes place in response
to prolonged exposure to blue light ()\,,,,,,, at 470 and >720 nm) at a high
irradiance. Blue light is also required to maintain the unfolded configuration [1l7 ...
D.-P. Häder, M. Lebert, 2001
4
Life Movements in Plants, Volume II, 1919
But photonastic reactionis supposed tobelongtoadifferent classof phenomenon,
where the movementis independentof thedirectiveactionoflight.I shall,however,
be able to establish a continuity between the tropic responseofaradialand the ...
5
Principles of Plant Physiology
A type of photonastic growth movement of leaves is exhibited by Impatiens and
other members of the Balsamineae in which the leaves droop, that is, hang
vertically downwards, at night, whereas during the day they are expanded more
or less ...
Coexistence of photonastic and phototropic responses. Heliotropic leguminous
leaves exhibit both diurnal and circadian movements. Their phototropic and
diurnal responses are superimposed. The skotonastic/ photonastic response of
the ...
Dov Koller, Elizabeth Van Volkenburgh, 2011
7
Light and Plant Responses: A Study of Plant Photophysiology ...
The integrated nature of these responses can be illustrated by Melilotus indicus,
whose leaf orientation is under photonastic control during the day and nyctinastic
control at night but which also exhibits solar tracking or diaphototropism.222 ...
8
Concise Encyclopedia Biology
Thermonastc 0r photonastic responses of tepals or petals (see Thermonasty,
Photonasty), i.e. opening or closing of flowers in response to changes in
temperature or light intensity. For example, when tulips or crocuses are
transferred to a ...
Depending upon the stimulus they may be photonastic or thermonastic. When the
movement is induced by the change in light intensity, it is called photonastic. The
photonastic movements are exhibited by the flower ofOxalis, Portulaca, ...
10
Common Beans: Research for Crop Improvement
Photonastic movement Kemp (1979) reported two pairs of genes to be
responsible for control of the temperature-modified photonastic movement of the
unifoliolate leaves of beans. Probatine carried the two recessive genes (aa bb)
whose ...
Aart van Schoonhoven, O. Voysest, 1991
NEWS ITEMS WHICH INCLUDE THE TERM «PHOTONASTIC»
Find out what the national and international press are talking about and how the term
photonastic is used in the context of the following news items.
Alamosa Flowers: Why do tulips close at night?
Various flower petals respond to temperature intensity (thermonastic) and/or light intensity (photonastic). Sources agree that tulips and ... «Valley Courier, Apr 12»
