TY  - JOUR
AU  - Vinterhalter, Dragan
AU  - Savić, Jelena
AU  - Stanišić, Mariana
AU  - Jovanović, Ž
AU  - Vinterhalter, Branka
PY  - 2016
UR  - https://link.springer.com/article/10.1007%2Fs10265-016-0821-4#Notes
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/2983
AB  - Phototropic (PT) and gravitropic (GT) bending are the two major tropic movements that determine the spatial position of potato shoots. We studied PT bending of potato plantlets grown under long-day photoperiods in several prearranged position setups providing different interactions with the GT response. Starting with the standard PT stimulation setup composed of unilateral irradiation of vertically positioned shoots, experiments were also done in antagonistic and synergistic setups and in treatments with horizontal displacement of the light source. In the standard setup, PT bending suppressed the GT bending, which could occur only if the PT stimulation was cancelled. The antagonistic position, with phototropism and gravitropism attempting to bend shoots in opposite directions, showed phototropism and gravitropism as independent bending events with the outcome varying throughout the day reflecting diurnal changes in the competence of individual tropic components. Whilst gravitropism was constant, phototropism had a marked daily fluctuation of its magnitude with a prominent morning maximum starting an hour after the dawn in the growth room and lasting for the next 6 h. When phototropism and gravitropism were aligned in a synergistic position, stimulating shoot bending in the same direction, there was little quantitative addition of their individual effects. The long period of morning PT bending maximum enabled multiple PT bending events to be conducted in succession, each one preceded by a separate lag phase. Studies of secondary PT events showed that potato plantlets can follow and adjust their shoot position in response to both vertical and horizontal movements of a light source. PT bending was reversible, since the 180° horizontal change of a blue light (BL) source position resulted in reversal of bending direction after a 20-min-long lag phase.
PB  - Springer-Verlag Tokyo
T2  - Journal of plant research
T1  - Interaction with gravitropism, reversibility and lateral movements of phototropically stimulated potato shoots
DO  - 10.1007/s10265-016-0821-4
SP  - 1
EP  - 12
ER  - 

@article{
author = "Vinterhalter, Dragan and Savić, Jelena and Stanišić, Mariana and Jovanović, Ž and Vinterhalter, Branka",
year = "2016",
abstract = "Phototropic (PT) and gravitropic (GT) bending are the two major tropic movements that determine the spatial position of potato shoots. We studied PT bending of potato plantlets grown under long-day photoperiods in several prearranged position setups providing different interactions with the GT response. Starting with the standard PT stimulation setup composed of unilateral irradiation of vertically positioned shoots, experiments were also done in antagonistic and synergistic setups and in treatments with horizontal displacement of the light source. In the standard setup, PT bending suppressed the GT bending, which could occur only if the PT stimulation was cancelled. The antagonistic position, with phototropism and gravitropism attempting to bend shoots in opposite directions, showed phototropism and gravitropism as independent bending events with the outcome varying throughout the day reflecting diurnal changes in the competence of individual tropic components. Whilst gravitropism was constant, phototropism had a marked daily fluctuation of its magnitude with a prominent morning maximum starting an hour after the dawn in the growth room and lasting for the next 6 h. When phototropism and gravitropism were aligned in a synergistic position, stimulating shoot bending in the same direction, there was little quantitative addition of their individual effects. The long period of morning PT bending maximum enabled multiple PT bending events to be conducted in succession, each one preceded by a separate lag phase. Studies of secondary PT events showed that potato plantlets can follow and adjust their shoot position in response to both vertical and horizontal movements of a light source. PT bending was reversible, since the 180° horizontal change of a blue light (BL) source position resulted in reversal of bending direction after a 20-min-long lag phase.",
publisher = "Springer-Verlag Tokyo",
journal = "Journal of plant research",
title = "Interaction with gravitropism, reversibility and lateral movements of phototropically stimulated potato shoots",
doi = "10.1007/s10265-016-0821-4",
pages = "1-12"
}

Vinterhalter, D., Savić, J., Stanišić, M., Jovanović, Ž.,& Vinterhalter, B.. (2016). Interaction with gravitropism, reversibility and lateral movements of phototropically stimulated potato shoots. in Journal of plant research
Springer-Verlag Tokyo., 1-12.
https://doi.org/10.1007/s10265-016-0821-4

Vinterhalter D, Savić J, Stanišić M, Jovanović Ž, Vinterhalter B. Interaction with gravitropism, reversibility and lateral movements of phototropically stimulated potato shoots. in Journal of plant research. 2016;:1-12.
doi:10.1007/s10265-016-0821-4 .

Vinterhalter, Dragan, Savić, Jelena, Stanišić, Mariana, Jovanović, Ž, Vinterhalter, Branka, "Interaction with gravitropism, reversibility and lateral movements of phototropically stimulated potato shoots" in Journal of plant research (2016):1-12,
https://doi.org/10.1007/s10265-016-0821-4 . .