Burning-induced electrical signals influence broadband reflectance indices and water index in pea leaves
- 9 March 2020
- journal article
- research article
- Published by Taylor & Francis Ltd in Plant Signaling & Behavior
- Vol. 15 (4), 1737786
- https://doi.org/10.1080/15592324.2020.1737786
Abstract
Electrical signals (ESs) can be induced by local action of stressors in plants; they influence numerous physiological processes (photosynthesis, transpiration, respiration, genes expression, synthesis of phytohormones, etc.) and, thereby, induce a systemic adaptation response. Development of optical methods of a remote sensing of this response can be important for agricultural and ecological monitoring. Preliminarily, we showed (Sukhova et al., Plant Sign Behav 2019; 14:e1610301) that burning-induced ESs induced changes in leaf reflectance at broad spectral bands (400–500, 500–600, 600–700, and 700–800 nm). The aims of the present work were (i) investigation of ESs influence on difference reflectance indices (RIs) calculated on the basis of these broad spectral bands and (ii) analysis of connection of the indices with water content in plants. Pea seedlings were investigated. ESs were induced by burning of the first mature leaf; ESs had high amplitudes in the second leaf and had low amplitudes in the fourth leaf. It was shown that ESs induced significant changes in RIs, which were calculated on basis of intensities of the reflected light at (i) 400–500 and 600–700 nm, (ii) 500–600 and 700–800 nm, and (iii) 600–700 and 700–800 nm. The effect was strong in the second leaf and weak in the fourth leaf; that is, the response was dependent on the magnitude of ESs. ESs-induced changes in RI were strongly connected with ESs-induced decrease of leaf water content which was estimated on basis of decrease of water index. Thus, broadband RIs can be used for revealing the ESs-induced systemic stress response in plants.Keywords
This publication has 51 references indexed in Scilit:
- GLUTAMATE RECEPTOR-LIKE genes mediate leaf-to-leaf wound signallingNature, 2013
- The photochemical reflectance index (PRI) and the remote sensing of leaf, canopy and ecosystem radiation use efficiencies: A review and meta-analysisRemote Sensing of Environment, 2011
- On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis)Journal of Experimental Botany, 2011
- Remote-controlled stop of phloem mass flow by biphasic occlusion in Cucurbita maximaJournal of Experimental Botany, 2010
- Electrical signals and their physiological significance in plantsPlant, Cell & Environment, 2006
- Rapid hydropassive opening and subsequent active stomatal closure follow heat-induced electrical signals in Mimosa pudica*Journal of Experimental Botany, 2006
- Hydraulic and electrical transmission of wound-induced signals in Vitis viniferaFunctional Plant Biology, 1999
- Estimation of plant water concentration by the reflectance Water Index WI (R900/R970)International Journal of Remote Sensing, 1997
- NDWI—A normalized difference water index for remote sensing of vegetation liquid water from spaceRemote Sensing of Environment, 1996
- A narrow-waveband spectral index that tracks diurnal changes in photosynthetic efficiencyRemote Sensing of Environment, 1992