Corrected photochemical reflectance index (PRI) is an effective tool for detecting environmental stresses in agricultural crops under light conditions

Kohzuma, Kaori; Tamaki, Maro; Hikosaka, Kouki

doi:10.1007/s10265-021-01316-1

Cited by 28 publications

(11 citation statements)

References 74 publications

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“…It can be used for the development of new methods for remote sensing plant stress changes. Particularly, these methods can be based on the measurements of the spatial heterogeneity of the distribution of a photochemical reflectance index (PRI), which is calculated based on reflectance at 531 and 570 nm [ 57 , 58 , 59 , 60 ] and is strongly related to photosynthetic parameters (the non-photochemical quenching of fluorescence, effective quantum yield of photosystem II, light-use efficiency, and photosynthetic CO 2 assimilation rate) [ 61 , 62 , 63 , 64 , 65 , 66 , 67 ].…”

Section: Introductionmentioning

confidence: 99%

Development of Two-Dimensional Model of Photosynthesis in Plant Leaves and Analysis of Induction of Spatial Heterogeneity of CO2 Assimilation Rate under Action of Excess Light and Drought

Sukhova

Ratnitsyna

Gromova

et al. 2022

Plants

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Photosynthesis is a key process in plants that can be strongly affected by the actions of environmental stressors. The stressor-induced photosynthetic responses are based on numerous and interacted processes that can restrict their experimental investigation. The development of mathematical models of photosynthetic processes is an important way of investigating these responses. Our work was devoted to the development of a two-dimensional model of photosynthesis in plant leaves that was based on the Farquhar–von Caemmerer–Berry model of CO2 assimilation and descriptions of other processes including the stomatal and transmembrane CO2 fluxes, lateral CO2 and HCO3− fluxes, transmembrane and lateral transport of H+ and K+, interaction of these ions with buffers in the apoplast and cytoplasm, light-dependent regulation of H+-ATPase in the plasma membrane, etc. Verification of the model showed that the simulated light dependences of the CO2 assimilation rate were similar to the experimental ones and dependences of the CO2 assimilation rate of an average leaf CO2 conductance were also similar to the experimental dependences. An analysis of the model showed that a spatial heterogeneity of the CO2 assimilation rate on a leaf surface should be stimulated under an increase in light intensity and a decrease in the stomatal CO2 conductance or quantity of the open stomata; this prediction was supported by the experimental verification. Results of the work can be the basis of the development of new methods of the remote sensing of the influence of abiotic stressors (at least, excess light and drought) on plants.

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Section: Introductionmentioning

confidence: 99%

Development of Two-Dimensional Model of Photosynthesis in Plant Leaves and Analysis of Induction of Spatial Heterogeneity of CO2 Assimilation Rate under Action of Excess Light and Drought

Sukhova

Ratnitsyna

Gromova

et al. 2022

Plants

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“…Earlier, we showed that using light-induced changes in PRI(531,570) can increase correlations between the photochemical reflectance index and photosynthetic parameters [ 43 , 44 , 59 ]; works by other authors also support this [ 61 , 62 , 63 ]. However, measurements of the light-induced changes in PRI(531,570) requires the controlled artificial illumination [ 43 , 44 ] or at least two measurements of the photochemical reflectance index under natural illumination (before dawn and under sunlight) [ 64 ].…”

Section: Introductionmentioning

confidence: 84%

“…Different directions of relations between PRI(531,570) and photosynthetic parameters under the action of different stressors (e.g., intensive light and water deficit) can restrict the use of this index for the remote sensing of photosynthetic stress changes. Potentially, this problem can be minimized by using light-induced changes in the photochemical reflectance index [ 43 , 44 , 59 , 61 , 62 , 63 , 71 , 76 , 77 ]; however, measurements of these changes have technical limitations. Alternatively, modified photochemical reflectance indices with shifts of the measuring wavelength can be used for solution of this problem.…”

Section: Discussionmentioning

confidence: 99%

Modified Photochemical Reflectance Indices as New Tool for Revealing Influence of Drought and Heat on Pea and Wheat Plants

Sukhova

Yudina

Kior

et al. 2022

Plants

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In environmental conditions, plants can be affected by the action of numerous abiotic stressors. These stressors can induce both damage of physiological processes and adaptive changes including signaling-based changes. Development of optical methods of revealing influence of stressors on plants is an important task for plant investigations. The photochemical reflectance index (PRI) based on plant reflectance at 531 nm (measuring wavelength) and 570 nm (reference wavelength) can be effective tool of revealing plant stress changes (mainly, photosynthetic changes); however, its efficiency is strongly varied at different conditions. Earlier, we proposed series of modified PRIs with moderate shifts of the measuring wavelength and showed that these indices can be effective for revealing photosynthetic changes under fluctuations in light intensity. The current work was devoted to the analysis of sensitivity of these modified PRIs to action of drought and short-term heat stress. Investigation of spatially-fixed leaves of pea plants showed that the modified PRI with the shorter measuring wavelength (515 nm) was increased under response of drought and heat; by contrast, the modified PRI with the longer wavelength (555 nm) was decreased under response to these stressors. Changes of investigated indices could be related to parameters of photosynthetic light reactions; however, these relations were stronger for the modified PRI with the 555 nm measuring wavelength. Investigation of canopy of pea (vegetation room) and wheat (vegetation room and open-ground) supported these results. Thus, moderate changes in the measuring wavelengths of PRI can strongly modify the efficiency of their use for the estimation of plant physiological changes (mainly photosynthetic changes) under action of stressors. It is probable that the modified PRI with the 555 nm measuring wavelength (or similar indices) can be an effective tool for revealing photosynthetic changes induced by stressors.

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“…16 Rapid high-throughput identification of early symptoms of stress in plants using a photochemical reflectance index allows real-time and precise control of growth conditions enhancing quality and yield. 17,18 Water management strategies such as the growing of crop plants under irrigation deficit conditions, subsurface drip irrigation, and alternate wetting and drying irrigation during specific growth stages allow judicious use of irrigation water without affecting yield and nutritional quality. [19][20][21] Adopting indigenous rainwater harvesting techniques suited to meet local demands is a promising solution.…”

Section: Water Stressmentioning

confidence: 99%

Bibliometric Analysis of Peer-Reviewed Literature on Stress Factors Affecting Agricultural Productivity

Sisodia

Sharma

2023

Curr Agri Res Jour

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Sustaining agricultural productivity is essential to ensuring food security. Climate change, increasing population and dwindling resources are factors of concern threatening crop productivity. Research across the globe have focused on seeking innovative measures to protect and enhance crop yield. We explored and analyzed peer-reviewed literature to provide an understanding of current and emerging trends in the field. A bibliometric method was followed using the database Scopus. Search queries used to retrieve documents were “Agriculture/crop productivity” and “Plant stress”. The study period was restricted to the last five years, from 2017-2021. The search query found 2207 documents in Scopus under the agriculture and plant stress theme. Increasing growth of publications was observed in successive years. Research activities in this field have the most contributors from Asian countries – China and India followed by the US. The major stresses affecting agricultural productivity being investigated were-Water stress, Temperature stress, Salinity stress. Amongst these, the theme related to water stress/ precipitation/ drought stress was the most investigated. The availability of water has a pivotal role in sustainable agriculture. The use of conservation agricultural practices such as intercropping, no-tillage, and soil mulching has proven to be effective in retaining soil water content and reducing the dependency on irrigation, especially in rainfed areas, thereby assisting in drought mitigation and increasing crop yield. Precision agriculture approach employing satellite data to predict weather and rainfall and early detection of stress signals using hyperspectral reflectance has shown promising results in ensuring sustained productivity. Breeding and transgenic approaches for plants with higher water use efficiency (WUE) and the ability to tolerate water stress are key areas of research being followed throughout the world.

show abstract

Corrected photochemical reflectance index (PRI) is an effective tool for detecting environmental stresses in agricultural crops under light conditions

Cited by 28 publications

References 74 publications

Development of Two-Dimensional Model of Photosynthesis in Plant Leaves and Analysis of Induction of Spatial Heterogeneity of CO2 Assimilation Rate under Action of Excess Light and Drought

Development of Two-Dimensional Model of Photosynthesis in Plant Leaves and Analysis of Induction of Spatial Heterogeneity of CO2 Assimilation Rate under Action of Excess Light and Drought

Modified Photochemical Reflectance Indices as New Tool for Revealing Influence of Drought and Heat on Pea and Wheat Plants

Bibliometric Analysis of Peer-Reviewed Literature on Stress Factors Affecting Agricultural Productivity

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