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. 2006 May;18(5):1110-9.
doi: 10.1105/tpc.105.039669.

Phototropism: bending towards enlightenment

Craig W Whippo  1 , Roger P Hangarter
Affiliations

Phototropism: bending towards enlightenment

Craig W Whippo et al. Plant Cell. 2006 May.
No abstract available

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Figures

Figure 1.
Figure 1.
Woodcut Depicting a Charles Bonnet Tropism Experiment from 1779. Two etiolated bean seedlings (a and b) oppositely placed in a vase (v) of water were tied downward (e). With the shutter (f) closed, each seedling reoriented upward toward the nearest wall (seedling a toward wall q and seedling b toward wall p). When the shutter was raised, both seedlings reoriented toward the opening (o). Reprinted from Bonnet (1779).
Figure 2.
Figure 2.
Julius von Wiesner's 1878 Diagram of the Action Spectra for Phototropism. von Wiesner observed the phototropic response of pea (Wicke), cress (Kresse), and grass (Weide) seedlings to various light qualities. Letters along the x axis represent Fraunhofer lines demarking light quality between 759 nm (A) and 396 nm (H). Reprinted from von Wiesner (1878).
See this image and copyright information in PMC

References

    1. Ahmad, M., Jarillo, J.A., Smirnova, O., and Cashmore, A.R. (1998). Cryptochrome blue-light photoreceptors of Arabidopsis implicated in phototropism. Nature 392 720–723. - PubMed
    1. Asomaning, E.J.A., and Galston, A.W. (1961). Comparative study of phototropic response and pigment content in oat and barley coleoptiles. Plant Physiol. 36 453–464. - PMC - PubMed
    1. Babourina, O., Godfrey, L., and Voltchanskii, K. (2004). Changes in ion fluxes during phototropic bending of etiolated oat coleoptiles. Ann. Bot. (Lond.) 94 187–194. - PMC - PubMed
    1. Bacon, F., Rawley, W., and Cecil, T. (1627). Sylva sylvarum: Or A Natural History in Ten Centuries. (London: John Haviland and Augustine Mathewes).
    1. Baskin, T.I. (1986). Redistribution of growth during phototropism and nutation in the pea epicotyl. Planta 169 406–414. - PubMed

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