منابع مشابه
Photoreversibility of Flower Initiation.
A. Borthwick et al (4) recently demonstrated that the red reaction inducing the germination of lightsensitive lettuce seed could be reversed. Their studies show that far-red near 7350 A is the region of maximum effectiveness in reversing the red reaction and thereby inhibiting seed germination. Thus, seed irradiated with red are put into a germinating condition that is nullified or reversed if ...
متن کاملOrientation of Birds in Total Darkness
Magnetic compass orientation of migratory birds is known to be light dependent, and radical-pair processes have been identified as the underlying mechanism. Here we report for the first time results of tests with European robins, Erithacus rubecula, in total darkness and, as a control, under 565 nm green light. Under green light, the robins oriented in their normal migratory direction, with sou...
متن کاملLEAFY expression and flower initiation in Arabidopsis.
During the initial vegetative phase, the Arabidopsis shoot meristem produces leaves with associated lateral shoots at its flanks, while the later reproductive phase is characterized by the formation of flowers. The LEAFY gene is an important element of the transition from the vegetative to the reproductive phase, as LEAFY is both necessary and sufficient for the initiation of individual flowers...
متن کاملMolecular basis of flower initiation—A review
Plants have many differences, like protandry, protogyny, etc. However, amidst these differences, all angiosperms have a common mechanism of flowering, i.e. concentric pattern of flowering (sepal, petal, stamen and carpel). The mechanism or the genes thorough which plants maintain boundaries between the four, sepal-petal-stamen-carpel, are also given due importance. Once a plant attains competen...
متن کاملGenetics and genomics of flower initiation and development in roses.
Roses hold high symbolic value and great cultural importance in different societies throughout human history. They are widely used as garden ornamental plants, as cut flowers, and for the production of essential oils for the perfume and cosmetic industries. Domestication of roses has a long and complex history, and the rose species have been hybridized across vast geographic areas such as Europ...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1949
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.24.3.530