TY  - JOUR
AU  - Živanović, Branka  D.
AU  - Cuin, Tracey Ann
AU  - Shabala, Sergey
PY  - 2007
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/232
AB  - Two types of segments (intact leaf tissue and isolated mesophyll tissue respectively) were isolated from basal (still growing) and tip (non-growing) maize leaf regions. The leaf segments were exposed to different light qualities (blue or red light) and quantities, and net fluxes of K+, Ca2+ and H+ were measured non-invasively using ion-selective vibrating microelectrodes (the MIFF technique). A clear dose dependency of all ion flux responses on both red (RL) and blue (BL) light fluence rate was found. We provide evidence that light-induced K+ flux kinetics are different between growing and non-growing tissues and attribute this difference to the direct involvement of RL-induced K+ flux in turgor-driven leaf expansion growth controlled by the epidermis, as well as to the charge-balancing role of K+ in the leaf mesophyll. Generally, BL was much more efficient in stimulating K+ uptake in the growing basal region compared with RL. We also show a much stronger influence of RL on Ca2+ fluxes in the basal region compared with BL, which argues in favor of the importance of RL in Ca2+ signaling during leaf growth.
PB  - Oxford Univ Press, Oxford
T2  - Plant and Cell Physiology
T1  - Spectral and dose dependence of light-induced ion flux responses from maize leaves and their involvement in leaf expansion growth
EP  - 605
IS  - 4
SP  - 598
VL  - 48
DO  - 10.1093/pcp/pcm032
ER  - 

@article{
author = "Živanović, Branka  D. and Cuin, Tracey Ann and Shabala, Sergey",
year = "2007",
abstract = "Two types of segments (intact leaf tissue and isolated mesophyll tissue respectively) were isolated from basal (still growing) and tip (non-growing) maize leaf regions. The leaf segments were exposed to different light qualities (blue or red light) and quantities, and net fluxes of K+, Ca2+ and H+ were measured non-invasively using ion-selective vibrating microelectrodes (the MIFF technique). A clear dose dependency of all ion flux responses on both red (RL) and blue (BL) light fluence rate was found. We provide evidence that light-induced K+ flux kinetics are different between growing and non-growing tissues and attribute this difference to the direct involvement of RL-induced K+ flux in turgor-driven leaf expansion growth controlled by the epidermis, as well as to the charge-balancing role of K+ in the leaf mesophyll. Generally, BL was much more efficient in stimulating K+ uptake in the growing basal region compared with RL. We also show a much stronger influence of RL on Ca2+ fluxes in the basal region compared with BL, which argues in favor of the importance of RL in Ca2+ signaling during leaf growth.",
publisher = "Oxford Univ Press, Oxford",
journal = "Plant and Cell Physiology",
title = "Spectral and dose dependence of light-induced ion flux responses from maize leaves and their involvement in leaf expansion growth",
pages = "605-598",
number = "4",
volume = "48",
doi = "10.1093/pcp/pcm032"
}

Živanović, Branka  D., Cuin, T. A.,& Shabala, S.. (2007). Spectral and dose dependence of light-induced ion flux responses from maize leaves and their involvement in leaf expansion growth. in Plant and Cell Physiology
Oxford Univ Press, Oxford., 48(4), 598-605.
https://doi.org/10.1093/pcp/pcm032

Živanović, Branka  D., Cuin TA, Shabala S. Spectral and dose dependence of light-induced ion flux responses from maize leaves and their involvement in leaf expansion growth. in Plant and Cell Physiology. 2007;48(4):598-605.
doi:10.1093/pcp/pcm032 .

Živanović, Branka  D., Cuin, Tracey Ann, Shabala, Sergey, "Spectral and dose dependence of light-induced ion flux responses from maize leaves and their involvement in leaf expansion growth" in Plant and Cell Physiology, 48, no. 4 (2007):598-605,
https://doi.org/10.1093/pcp/pcm032 . .